The screen is locked on Android, what should I do? How to unlock Android using ADB program

If you have forgotten your set password or graphic key on Android, there's no reason to panic. Access to your smartphone can be restored, and there are several ways to remove the lock. The updated instructions describe each of them in detail.

How to reset a password or lock on Android

(!) The article contains the main methods of resetting a password/pattern, ranging from the simplest (when you remember the username and password of your Google account) to the more complex: Hard Reset, deleting the “gesture.key” and “password.key” files. Read all the points carefully, follow the links provided to detailed instructions, and everything will work out!

Method 1: Enter your Google account information

Working method for devices running Android 4.4 and below. Starting with Android 5.0, this option was removed from many firmwares. But not all manufacturers did this, so check whether it works for you or not.

When your phone or tablet is connected to mobile network or Wi-Fi, to remove the blocking, simply enter your e-mail and password. To do this, enter the pattern key incorrectly 5-10 times, after which a warning will pop up about blocking the device for 30 seconds.

The “Forgot your pattern key?” button will appear on the screen; by clicking on it, you can enter your data and unlock the device.

If you forgot your account password, you will have to recover it - go to this page from a working gadget or PC.

note that this method requires mandatory access to the Internet. So open the panel quick settings by swiping down (“the curtain” can be opened directly from the lock screen on Android 5.0 Lollipop and later) and turn on mobile data or Wi-Fi. The device will connect to the access point if it has previously worked on this network.

2. Reset picture password using ADB

The pattern can be removed using ADB. You need to connect the device via USB to your computer and enter necessary commands. All details in

The method will only work when USB debugging is enabled.

Method 3. Reset to factory settings

The next method is simpler than the previous one, but using it will delete all data from internal memory, such as installed applications, linked accounts, SMS, etc. Photos, audio and other files on SD will remain intact. Full instructions you will find in the article:.

The next time you activate the device, restore the data from backup copy– works provided that it was previously carried out.

Method 4. Flash a smartphone or tablet

Having stitched Android phone or tablet, you will remove the lock or password. Our website has Android firmware devices various manufacturers, separately Samsung via and LG via .

Method 5. Removing gesture.key (pattern reset) and password.key (password reset)

The method is intended for owners of phones and tablets with and. Its effect is to remove system files“gesture.key” and “password.key”, responsible for displaying the graphic lock and password, respectively.

For this you need the Aroma file manager. Download the archive from the link and send it to your phone or tablet without unpacking it. Then turn off the device and . To do this, instead of the power button, press and hold one of the possible combinations (or read the FAQ for specific models):

Volume up + “ON”
Volume down + “ON”
Volume up/down + Power + Home

Using the volume up and down buttons, you can move up and down, respectively, and confirm your selection with the power/lock button. In new recovery smartphones may be sensory.

Instructions:

1. In the CWM Recovery menu, select “Install zip”.

2. Then click “Choose zip from /sdcard” and go to the folder where Aroma was downloaded or use “Choose zip from last install folder”. In the second case, you will see all the latest downloaded archives, among which you will find the one you need.

3. Select the archive with Aroma Explorer.

“gesture.key” (“gatekeeper.pattern.key” in new firmware)
"password.key" (or "gatekeeper.password.key" instead)
"locksettings.db-wal"
"locksettings.db-shm"

Select them in additional menu click "Delete".

Finally, reboot your device. You can enter any password and the phone will be unlocked. Then feel free to go to the settings and set a new lock.

6. How to remove graphic lock via TWRP Recovery

Unpack the archive with Odin and run the program.

Switch your smartphone to firmware mode (aka Bootloader, download mode). To do this, with the device turned off, press and hold 3 keys:

“ON” + volume down + “Home” button

When you get to such a menu, press the Volume Up key to continue.

Android and the word “Downloading” will appear on the screen - which means you have switched Samsung to firmware mode.

Connect your phone to your computer via USB and wait for the drivers to install. The first cell “ID:COM” will display the connected port, and the message “Added” will appear in the logs.

Now click on the AP button (PDA in older versions of Odin) and select the Recovery file.

If there is a checkmark next to “AP”, and the path to the file is written in the field next to it, you can proceed.

To start the firmware, click “Start”.

Since the weight of the Recovery file is small, the process will take a couple of seconds. The message “All threads completed. (succeed 1 / failed 0)”, and in the upper left cell – “PASS!”. This means that the firmware custom Recovery was successful.

Now turn off your phone and hold one of the key combinations to get into Recovery:

“Home” + volume up + power on
“Home” + “ON” (on older Samsung)
Volume up + power on (on older tablets)

Depending on the installed Recovery: CWM or TWRP, go to steps 5 or 6 of this article and delete the files:

"password.key" ("gatekeeper.password.key")
"gesture.key" ("gatekeeper.pattern.key")
"locksettings.db-wal"
"locksettings.db-shm"

13. How to remove the unlock key on Huawei and Honor: backup PIN code

On Huawei and Honor, in addition to the pattern key, a backup PIN code is used. Therefore, to unlock the device, you need to draw the pattern incorrectly 5 times, and the display will display the message: “Try again in 1 minute.” Wait 60 seconds for the “Backup PIN” button in the lower right corner to become active. Click on it, enter your PIN and the unlock key will be instantly reset.

14. Backup PIN on LG

When setting a screen lock on LG, you need to set a backup PIN code, which you can enter instead of a pattern or password, and unlock the phone.

To do this, draw an irregular graphic pattern until a message appears indicating that input is blocked for 30 seconds. Click “OK”, select “Forgot your pattern?” at the bottom, enter your PIN code and click “OK”.

15. Smart Lock function

Starting from Android 5.0, the system has a function Smart Lock, which allows you to disable the screen lock in certain situations. For example, when the device is at home or connected to a trusted device via Bluetooth. Depending on the device manufacturer, as well as the Android version, there are different variants unlock with using Smart Lock, such as voice detection, face recognition and others.

Everything is released every year more smartphones and tablets running in the operating room Android system. They all come with a screen lock feature that allows you to protect your personal information. However, there are situations when the owner forgets the password or cannot remove the protection on his own. In this case, you need to know how to remove the screen lock on Android.

Fig.1 Phone lock screen

Exists a large number of ways to protect your Android device. The most effective of them is the display locking method. IN modern devices it is possible to choose a way to protect personal data from getting into to strangers. In this case, the user can independently determine the required degree of protection.

Types of screen lock

	Description
Lack of any protection	In this case, the display turns on immediately after pressing the power button. A person holding a smartphone or tablet will immediately see the desktop. This option can be used only in cases where there is complete confidence that the gadget will not be lost or fall into the wrong hands.
Ordinary swipe	This option is considered one of the most primitive and can only protect against accidentally turning on the device. In order to unlock the screen on Android, you need to swipe your finger across it.
Graphic key	This method of protecting the screen is much more reliable than the previous ones. It consists in the fact that the owner of the gadget draws a predetermined pattern at certain points. The correct sequence of actions will lead to unlocking the screen. This method is also good because after several unsuccessful attempts, a pause is automatically introduced before the next input.
PIN code	This is the simplest and most frequently used method of protecting not only the screen, but also the SIM card. It consists of entering a certain set of numbers, which are set by the owner of the gadget. Only the right combination will allow you to remove the screen lock on Android. If an incorrect code is entered several times in a row, then the possibility of making another attempt disappears for some time.
Password	It works in much the same way as a PIN code. The only difference is the need to enter not only numbers, but also characters of different registers. This protection option is one of the most reliable, but requires a long typing of characters.
Fingerprint	All modern tablets and Android smartphones are equipped with the function of unlocking the screen by placing a finger. This method is considered the most effective, since there are no two identical prints in the world. Consequently, only the owner of the gadget can access the information.
Face recognition	This method is used only in new devices running on the Android operating system. The principle of operation is to scan certain points on a person’s face and compare the information received with the corresponding features of the owner of the gadget. If similarity is detected, the screen will automatically unlock.
Iris scanner	The retina, like a fingerprint, has a unique pattern. Therefore, such protection works on the same principle as when determining the owner’s fingerprint.

Forgotten password or pattern

Man is an amazing creation of nature. He can remember the most complex formulas and perform calculations in his head, but forget required passwords. This is a fairly common problem, so several effective methods have been invented to combat it. In order to unblock Android, you need to use one of the methods.

Via Google Account

This is the easiest way to unlock, but it requires certain conditions. In order to use it, you need to have Google account and always on Mobile Internet or WI-Fi.

Unlocking procedure:

Any password or pattern is entered until the display indicates a thirty-second lock of the gadget.
After this, the “Forgot your password?” button will be displayed on the screen.
Clicking on it will redirect you to your Google account.
There you need to enter your email and valid password.
As soon as the actions are confirmed and your account is logged in, the screen will automatically unlock.

Fig.2 Login to Google account

This method only works for those gadgets that have the old version Android. Starting with Android 5.0, this option to unlock the display has been eliminated.

Using the ADB program

This method can only be carried out after connecting the device to the computer via USB. Name ADB programs stands for Android Debug Bridge. She has several useful functions, including password removal. In order for it to be used, you need to enable USB debugging on your gadget. The function is installed by default or activated when the device is connected to the computer.

Sequencing:

ADB is part of the Android SDK, so you need to download it first.
Once this is done, the smartphone or tablet is connected to the computer.
The downloaded file is unzipped and the ADB program is found.
After this, open the command line. To launch it, click on the “Start” menu and select “Run”.
In the window that opens, enter the symbol combination “cmd”.
After pressing the enter key, enter the path to the folder containing Android program Debug Bridge.
In the line that appears, enter: cd /data/data/com.android.providers.settings/databases.
Press the “Enter” key and reboot the gadget.

Factory reset

This simple method allows you to quickly unlock your device screen. However he has one significant drawback- all information contained on the gadget’s internal memory will be deleted. In this case, the files stored on the SD card will remain in their original form.

Unlocking can be done as follows:

The first step is to press and hold a certain combination of buttons. This combination will be different for each tablet and smartphone. Most often, manufacturers install a combination of the volume key and the power button. In some cases, the combination may be supplemented with a “Home” button.
After this, the device will turn on Recovery Mode. Any actions in it can be carried out using the volume keys (moving up and down) and the power button (confirming the selection). In some modern models Recovery Mode can be controlled using a sensor.
Select the “Wipe data/factory reset” menu item.
The action is confirmed in the window that appears. To do this, click “Yes-delete all user data”.
The process of deleting data will begin, after which you must click “Reboot system now”.
The device will reboot and all settings will be reset to factory settings.

Fig.3 Resetting the phone to factory settings

Deleting files

This unlocking method is only available for devices whose owners have administrator rights and have the Aroma file manager loaded. The method is based on searching and deleting files that store information about set passwords and graphic keys.

Step by step guide:

In order to remove a screen lock on Android, you need to turn off the device.
Then press the standard combination of buttons and go to Recovery mode Mode.
In the menu that opens, select “Install zip”.
In the next section, select “Choose zip from/sdcard”.
Place the cursor on the line with file manager Aroma and open it.
It contains the “data” folder and the “system” subfolder.
It is searched and deleted following files: gesture. key, password. key, locksettings. db-shm, locksettings. db-wal, locksettings. db.
After completing the procedure, you need to reboot the gadget.

In the mobile service

Google has created a special mobile service“Find device”, which has the ability to reset all settings of the gadget. This application will allow you to unlock your phone's display and allow you to install New Password. It only works if the device is connected to Wi-Fi or mobile Internet.

The lock is removed like this:

From any other device, you need to go to the Find Device service page on the Internet.
After completing the authorization procedure, you will be redirected to the Google map.
Then it will begin automatic search gadget location. The specified location will correspond to where in last time accessed the Internet.
Once the device is found, you will be able to select one of the options.
Of these, you need to select the “Erase data” function and confirm the action by clicking the same link again.
In the window that appears, click the “Clear” button.

Rice. 4 Using service applications

Ways to disable protection

Sometimes a user gets tired of the screen lock feature and decides to disable it. This can be done only in one way, the order of which depends on the version of Android.

Outdated versions

This category includes operating systems from 1. x to 5. x. All of them have approximately the same way to remove the screen lock on Android (for Samsung, Nokia, Huawei, Lenovo and others).

In order to cancel protection, you must perform the following steps:

Go to home page and click on the menu icon.
In it, select the “Applications” icon.
On the page that opens, click on the “Settings” icon. IN Samsung smartphones it is depicted as a gear, and in gadgets from other manufacturers - wheels.
In settings, select “Location and protection”.
In the window that appears, search for the “Change blocking method” section.
In order to disable the blocking, you need to remove established protection. Depending on its type, a password or graphic key is entered.
Then the “Unprotect” function is installed.
The selected action is confirmed in a pop-up window, and the previous page is displayed on the device.

New variations

All devices with new versions of the Android operating system (6.x and later) also have the ability to lock the screen and remove its protection.

This procedure is very similar to outdated versions, but has several features.

The blocking is removed after the following actions:

After turning on the gadget and unlocking the screen, press the “Application Menu” icon. At certain settings it can be located at the bottom of the main screen or in the secondary menu.
Clicking on the icon opens a list of applications that are installed on your smartphone or tablet.
From these, select the icon labeled “Settings”.
In the menu that appears, there is a “Security” section.
After going to it, several subsections open, among which will be “Display lock”. Below this inscription, in small print, the current method of protection is indicated.
A window pops up in the subsection, requiring you to enter a graphic key or password.
After successfully completing this procedure, a list will appear available options replacements. One of them will be "No", which means disabling the display lock.
When you click on the corresponding item, a window will appear asking you to confirm the action.
To permanently change the settings, click “Yes, disable”.
After this, you will go to the previous menu.

Locking the display of a tablet or smartphone running on the Android operating system makes it possible to further protect personal information. If there is no threat of data theft and the desire to enter a password every time, then it is better to disable this function, which will speed up the loading of the main screen.

This may be useful for those whose child, while playing with the phone, set a PIN code or pattern on it, as well as for those who, after installing protection, after some time forgot the access code to their smartphone or tablet.

So, meet 4 ways to remove a graphic key PIN code or password blocking access to Android device

Method 1.

Unlock Android using Android Remote Control

A few years ago Google company has introduced a new web service that allows you to find lost or stolen Android devices, as well as remotely block them using a password.

This service is called "Remote Android management" and you can access it by this address.

Many people know about this service, but not all of them realize that it can be used to unlock a smartphone or tablet. More precisely - with the help Remote control you can set a new password that can be used to log into your locked device

All you need to do is click on the “Block” button and in the window that opens, enter a new password to access your smartphone or tablet.

After some time (5 - 10 minutes), a new password will be set on your smartphone and you can use it to unlock your device, and then, if desired, change it in the system settings menu, “Security” section.

The method is quite simple, but it only works if the locked smartphone or tablet has access to the Internet (active Internet connection).

Method 2.

Removing screen lock using factory reset

This method does not require an active Internet connection on the locked device, but it leads to the complete loss of data and applications installed on your smartphone or tablet after purchasing it.

The essence of the method is to reset your device to the state it was in after purchase. This means that after resetting it, you will need to reconfigure it and install the applications that were on it at the time of blocking.

In order to reset Android smartphone or tablet to factory settings, you will need to enter recovery mode. On different devices This is done in different ways, but most often you will need to do the following:

1. Turn off your smartphone or tablet completely.

2. Press and hold the power and volume down buttons simultaneously for 5 - 10 seconds.

3. Wait until the image of a lying green robot appears on the screen of your device (screenshot bottom left)

4. Using the volume buttons, select the “Recovery Mode” mode (screenshot above, right) and enter it by pressing the power button. You will see something similar to this:

5. Using the volume buttons, go down to “Wipe data/factory reset” and press the power button.

6. You have started the factory reset process. Wait until it completes and use the volume buttons to select “Reboot system now”, then press the power button.

Your smartphone or tablet will reboot and you will be taken to the menu initial settings systems.

Method 3.

How to unlock Android using ADB program

This method will not lead to the loss of data and applications, but it will only work on those devices whose users have previously enabled .

Connect your Android device to a computer on which the ADB program is installed (more recently it can be downloaded separately from the Android SDK) and make sure that the computer recognizes your device.

Method 4.

How to reset the screen lock of a third-party application installed on your smartphone or tablet

Some people use it to block access to their Android device. third party applications(lockscreens), and if you are one of them, then the following method will suit you:

1. Reboot your device into safe mode. How to do this is described in this article.

2. Go to the main system settings menu, the “Applications” section and find in it the program that you use to lock the screen of your smartphone or tablet.

3. Delete the app data and reboot your device.

The screen lock will be removed.

How to remove screen lock on Android? So that the smartphone does not turn on in your pocket or bag, so that the cat does not accidentally dial someone’s number, stepping on the gadget with its paw, it creates special function- screen lock. It’s very easy to enable this function, but what should those who would like to turn it off do? And perhaps the user has one.

Disable blocking

So, how to remove screen lock on Android? There are several options, including: the lock can be removed without problems or not removed at all. First, let’s try to take the easy route: go to “ Settings"gadget, then go to the item - " Safety" If the lock asks for a PIN code and it is impossible to remove it, then you need to go to the very bottom of the menu and look for the item called - “ Safety", click on it and move on. Find the line - “ Clear accounts».

Almost all models of gadgets controlled operating system Google are configured to go to special mode– limited operation with turning off the monitor, that is, blocking. Latest models smartphones are configured so that at the moment of locking, widgets appear on the screen: weather, time and fast access to popular utilities.

But, if the user needs, immediately after activation, to use the smartphone quickly and for it to work fully, then blocking will only interfere. Therefore, this function must be removed, and how to do this is described below.

So that the gadget instantly switches to “ Desktop"After switching on, you need to do the following:

Go to " Settings», Settings; Next, go to the point called - Security, that is " Safety"; and there, press the key Screen lock, « Screen lock", and then find the item - None, which means " Cancel" After going through these simple steps, the smartphone will instantly go into operating mode immediately after pressing the power button.

Lock on your tablet

It should be remembered that blocking the monitor is protecting information from intruders. Therefore, to prevent third-party people from using the gadget by canceling the blocking, you should launch some other protection method. For example, a protection method such as Lookout Security is suitable for both smartphones and tablets – it will block it remotely and clear the gadget’s memory.

But, if a person uses a gadget only at home, then why does he need to block and protect information? In this case, go to “Settings” and simply remove the check mark next to the “Screen lock” line.

How to remove screen lock on Android? Question answer.

If the screen is locked, the WI FI network automatically turns off. What to do?
Go to the “Settings” of your smartphone, then find the item “ Additional functions", then find the line - “Wi-Fi in sleep mode” and click on it.
Can I turn off the screen lock during a phone call?
No. This cannot be done. However, you can configure the maximum time to turn off the phone display.
How to turn off the lock not with a graphic key, but simply by moving your finger to the side?
Go to the “Settings” of your smartphone, then go to the “Security” item and there turn off the “Lock” function and enable the “Finger Shift” function. But, it should be remembered that any involuntary movement of the finger, especially if the phone is in a bag or pocket, will lead to some program being activated.
Is it possible to turn off the display of album covers on the smartphone display while it is locked?
You should go to “Settings”, then to “Play Music” and turn off the function, but if this is not provided in the phone, then you cannot get rid of the covers.
How to remove screen lock on Android?
Go to “Settings”, then find the item called “Security”, and there find the line – “Set up screen lock” and Turn off the function.
Reset.
If the user has forgotten the pattern key, what should he do?
They will only help special passwords, they are also password reset codes, called - service numbers. Only with their help can you reset the pattern key and set up a new one. As a last resort, reset the settings to factory settings. To do this, you need to: simultaneously hold down two buttons on your smartphone - power and sound. Wait for the special menu to launch and then press the button to erase everything.

You can also do this: turn off the phone, then simultaneously press two buttons: turn on and volume. A menu will appear on the display, in which you need to select the line - wipe data/factory reset. The volume control buttons and the power button will help you navigate through the menu.
BUT! You should know that resetting to factory settings entails the loss of all photos, music and movies, telephone numbers and so on. Therefore, if there is a memory card, you need to remove it.

A call will help

How to remove screen lock on Android? A call will help you unlock the gadget. Simply, you can ask a friend, or call with home phone to a blocked mobile phone. And when the bell rings, just press the HOME button, then go to “Settings” and change the access key. But it may also be that the phone model will not allow you to change the setting during a call.

Discharge smartphone

Continuing the topic of how to remove the screen lock on Android, we advise you to discharge the gadget, and when a notification about the battery status appears on the display, click on it and go to the “Battery Management Menu”, and from there go to “Settings” and change the code.

And one last thing. You can go to “Settings”, then to “Device”, then “Lock Screen”. A message will appear - “No” and click on it. There will be no more display locking. And if the smartphone was turned off, then hold down the volume and logo at the same time, “Menu” will appear and press “Home” there, and then press the power off button. Then proceed according to the standard scheme: “Settings”, “Screen management”, “Security” and select the item that is necessary. Confirm action.

What makes us, mobile phone users, graphic code security or enter an incredibly complex security combination into a cellular communication device? Most likely, your answer is: compliance with safety measures. At the same time, in the numerous “ranks of the mobile army,” the question that naturally arises (due to the forgetfulness inherent in human nature) does not lose its current relevance: how to remove the lock from a Samsung phone. As you may have guessed, the “hero” of our story will be the products of the well-known Korean brand Samsung, and we will focus our attention on the most important operational point - software protection mobile device and ways to restore access to its functionality.

A reminder of something important, or a memory of a “treacherous rake”

Of course, none of the phone owners are immune from an extremely undesirable manifestation of our consciousness - forgetfulness. And everything would be fine if each user “acquired” an account in advance and stored identification data in a safe place. But not everything is so rosy, as many of us forget to write down secret symbols, and some are completely deprived of the possibility of “Internet safety net”, since “slightly” outdated models do not have the ability to unlock using an account. However, how to remove the lock from Samsung phone who served you faithfully long time, you will find out in just a few minutes!

Protection from ourselves

Literally everything Cell phones equipped with a locking system. Operating principle of the locking device different models may be expressed individually design feature: lever, floating button or touch glass. However, all this variety has one purpose - to protect against unauthorized user influence on the keyboard, touchscreen or other controls of a cellular device. But this is, so to speak, an “innocent type of defense.” A much more complex mechanism is provided when a total blocking algorithm is applied, which can only be canceled by entering strictly defined data. However, more about this.

Secret code to lock a Samsung phone

Each cellular device has an engineering menu with which you can control the hardware potential of the mobile unit. However, you can enter it only by knowing special combination. Perhaps in the past such information was considered secret, but today the mystery and secrets are compensated by extensive Internet support. For example, almost all Samsung devices respond to the command *2767*3855#. This code copes well with the unpleasant “surprise” ( forgotten password locks) not only on older versions of the Korean brand. However, you will have to say goodbye to the personal information that is in the “bows” of the device, but the phone will become available for use again.

Our days: “monsters” of high technology

How to unlock a new generation Samsung phone? The unequivocal answer expresses a complete focus on global support from the manufacturer. In other words, modern Android devices have the ability to be identified on the network using the ID previously assigned to them. Only thanks to this, your “lost” access password can simply be canceled, of course, if the authorization process in the service network will take place successfully. The main thing is to know your account information.

Enter the required data type randomly several times.
After some time, an invitation message will appear.
Enter your data in the specially designated check boxes and wait for a server response.

It is worth noting that such a service is not always effective, so if the result is negative, look for “salvation” in the paragraph below.

Replacing the access password: a practical guide

In the case when all attempts to remember the graphic key or character code unlocking was not successful, and the answer to the question of how to unlock a Samsung phone is urgent, do the following:

Turn off your phone and remove the SIM card from your Android device.
Press the Vol+, Power and Home buttons in sequence.
Wait for the Samsung logo to appear.
IN engineering menu select Wipe and confirm your choice with the Power button.
In the next list, use the same key to activate the line delete all user data.
Use the option and wait for the reboot process to complete.

All the above steps will allow you to return the phone to its original condition, since, in fact, this is nothing more than the notorious Hard reset. Therefore, your data, unfortunately, will be completely lost. However, you, dear reader, still received one of the answers to the question of how to unlock a Samsung phone.

Factory reset alternative

A pattern or symbolic password can be reset in a fairly “harmless” way. Simple in appearance but incredible effective program Adb Run will especially easily relieve you of headaches and visits to service center due to “memory lapses”. Don't be offended; take this statement as an ordinary embellished comparison. So, first of all, you will need a USB cable, as well as the distribution kit of the program mentioned above.

Launch Adb Run.
In the main window of the program, you must press number 6.
Next, select one of the presented methods, which can be launched by entering 1 or 2.

There is a possibility that the restriction will not be lifted when using these two reset methods. However, you can always use the manual debugging option.

A practical solution to the question of how to unlock your phone using standard Windows tools

IN command line(Start menu/Run/cmd) enter:

· cd/
· cd adb/progbin
adb shell
rm /data/system/gesture.key

Another option for restoring access:

cd/
cd adb/progbin
· adb shell
· cd /data/data/com.android.providers.settings/databases
· sqlite3 settings.db
· update system set value=0 where name=’lock_pattern_autolock’
· update system set value=0 where name=’lockscreen.lockedoutpermanently’
· .quit

Remember that the phone must be connected to the computer, and the drivers must work correctly with the synchronized device.

old problem

How to remove SIM card lock from Samsung phone? This is, so to speak, a timeless issue that requires a software solution. Only programmatically manages to defeat this type of “malicious defense”. This problem usually occurs in older models of the Korean manufacturer. To remove the SIM lock of a cellular device, the time-tested “Samsung Unlocker” program is used. However, even if you, dear user, perform all actions correctly and according to the instructions, positive result not guaranteed. The only one trouble-free way- flashing.

It is worth noting that for an uninitiated person, unlocking is an incredibly difficult task in practice. Normal phone blocking and “unlinking” from the operator are incomparable various problems. Therefore, it is recommended to turn to specialists, since there is a high chance of ruining a known working phone, even an old one, through not fully conscious actions.

Attention: "secret codes"

Samsung phones are probably the most recoverable mobile devices. And the incredibly extensive list of well-known service commands is obvious confirmation of this. Some codes effectively help solve the question of many about how to remove the SIM card lock from a Samsung phone. Agree, it’s convenient - by entering just a few numbers, you can reset your cell phone settings, limit or expand the functionality of your phone. However, you must be confident in the veracity of the information provided. There are simply “killer combinations”, the action of which can have unpredictable consequences for the device. For example, a Samsung phone can be unlocked using the command *2767*3855#.

But not everyone knows that this code can “completely demolish” the imei of some phone modifications, without which, by the way, the device will not be able to fully function. Korean developers have provided plural various numerical variations of the impact, thereby opening up almost unlimited possibilities for restoring the performance of your own products.

A few words about competitors

Reliable Finnish mobile phone Nokia doesn't need advertising. At the same time, the question of how to remove the lock from a Nokia phone is no less relevant. However, more early models are practically not amenable to “manual deactivation”, and modern smartphones have even more reliable protection than their predecessors. Of course, none service codes You won't be able to unblock the Finn. Unless using the same ID account.

By itself, this function only supported by new units cellular communication, for the rest of the Nokia line, only firmware and complex software manipulations remain. However, we are still presenting to your attention a method for unlocking some not particularly capricious modifications, representatives of which are relatively outdated samples of serial production.

We shoot using software

The example below will resolve the question of how to unlock a Nokia phone. The only difficulty in implementation of this enterprise- this is the need to manufacture a certain device that will allow you to enter the device into a special access mode Test mode. However, everything is really achievable and absolutely easy to put together.

The special cable consists of three “crocodiles” that are fixed to the contact terminals of the battery phone. You also need to have a standard DATA cable.
Two contact pins “+” and “-” are soldered to the USB “plug” (observing the polarity of the port).
From the negative wire you make a branch through an intermediary, which acts as 4.7 ohms. This limit switch will be connected to the BSI contact of the device (usually this is the far right leg, closer to the middle). However, you can always find your bearings by the graphic markings of the battery.
Download Nokia program Unlocker, then install it on your computer.
Connect the cords and after the software recognizes your device, click on the “Read code” button.
Congratulations, the question of how to unlock your phone is now, so to speak, resolved for you.

Summing up

Perhaps someone will remain disappointed after unsuccessful attempts to “open the mobile shell” using the methods presented above. But, as you know, the absence of a result is a result! Try, try and gain experience. After all, you didn’t go to the service center for help, which means you have an ambiguous interest in the cognitive process, and this is a big plus in any sense. The topic “How to unlock if you forgot your password” will never lose relevance in the solution. Perhaps your knowledge, which will accumulate over time, will help more than one person. However, your competence will primarily play in your favor: it will save you a lot Money, time and, of course, nerves. Don't block knowledge - develop!