The best way for Samsung to go to unlock card is Reason 10

If the phone is stuck, frozen, or sometimes unresponsive when in use, resulting in the machine not being able to use normally, it is recommended to try first: press and hold the power button of the mobile phone for 8-10 seconds to restart the machine. If the machine can be used normally for the time being after restarting, it is recommended to:

1.Too many background programs on your phone may cause your machine to run slowly and lag. It is recommended to end all programs that run in the background. How: Go to Task Manager - Active Applications - End the program running in the background. You can also try by restarting your phone.

3.Check if your phone has enough memory, it is also possible that your phone will run slow due to insufficient memory. If you have an external SD card, it is recommended to take it out and test it.

4.If the above operations still do not work, we recommend that:

1) Please check if your phone has a firmware system push notification, and if so, please upgrade your phone to the latest version. View method: Settings - About Device - System Update - Update (please back up the data in your phone before upgrading).

2) If it doesn't work, please back up the data in your phone, and then restore the factory settings (Settings - Reset Privacy - Personal - Factory Reset).

If the problem persists, please bring the purchase invoice, repair card and machine to the Samsung service center, and a professional after-sales engineer will help you test it.

Summary. How to turn on the Samsung phone card when it is turned off.

Hello dear, it is recommended that you try it by following the steps below:1Under Standby Desktop - Tap Applications - Settings - More Networks - Mobile Networks - Network Operators - Search Networks - Select the network operator supported by your SIM card 2

Take out the SIM and clean the SIM card metal contacts with an eraser. (Whether it is a SIM card with poor contact).

3.Try to replace a SIM card (whether the SIM card is aged or damaged)4Check whether the phone has software such as Security Guard or Calendex installed, and try to uninstall it.

5.Back up your phone's data (**book, short message, multi** file, etc.), restore factory settings, if the problem still exists, it is recommended that you send your phone to the nearest Samsung service center for testing and repair, please visit the specific service center for inquiry.

How to turn on the Samsung phone card when it is turned off.

How to turn on Samsung mobile phone card off Hello dear, it is recommended that you follow the steps below to try it:1Under Standby Desktop - Tap Applications - Settings - More Networks - Mobile Networks - Network Operators - Search Networks - Select the network operator supported by your SIM card 2

Take out the SIM and clean the SIM card metal contacts with an eraser. (Whether it is a SIM card with poor contact) 3Try to replace a SIM card (whether the SIM card is aged or damaged)4

Check whether the phone has software such as Security Guard or Calendex installed, and try to uninstall it. 5.Back up your phone's data (**book, short message, multi** file, etc.), restore factory settings, if the problem still exists, it is recommended that you send your phone to the nearest Samsung service center for testing and repair, please visit the specific service center for inquiry.

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The phone has a freeze problem, it is recommended to do the following:

1.If it can't be turned off, it is recommended to press and hold the power button for 8-10 seconds to restart the machine to try, shut down, restart the machine to try, if it still can't be turned off, you need to send your phone to the service center for processing, if it can be turned off, you can continue to operate the following steps.

2.If an external SD card is inserted into the body, take it out for testing. Rule out 3Test the third-party software that was operated before the crash to rule out the third-party software that is incompatible with the phone and cause the crash.

4.Back up your phone's important data and restore it to factory settings.

If the fault persists, it is recommended to bring the machine, purchase invoice, and warranty card to the nearest Samsung service center for testing and repair.

What should I do if the SIM card has been removed, please restart the phone? Feixiang Mingyue has brought a solution to the Samsung SIM card has been removed, if you are a Samsung mobile phone user and encounter the "SIM card has been removed, please restart the phone" prompt, you can take a look at the following

Cave shed method 1, use the correct size of the SIM card.

That is to say, you should pay special attention when cutting the card, many friends cut the card crookedly, resulting in the SIM card cannot be detected.

Method 2: Install the SIM card correctly.

Nowadays, there are many ways to install SIM cards on mobile phones, such as the card tray type of iPhone, and the insertion card type like Samsung. It is strongly recommended that you carefully read the mobile phone instruction manual before installation, and strictly follow the operation on the instruction manual, such as not reversing the direction of the SIM card.

Method 3: Ensure that the surface of the SIM card is clean and free of oxidation.

If the metal is oxidized or the surface is dirty, it will cause poor contact between the SIM card and the mobile phone card holder, resulting in no card recognition. The solution is very simple, you can use a cotton ball dipped in anhydrous alcohol to wipe the surface of the cracked SIM contacts.

Method 4: Replace the SIM card that is seriously worn out or damaged by deformation.

After the SIM card is used for a long time, the metal plating on the surface of the SIM contact will be worn or the SIM card will be deformed and damaged, and the contact with the mobile phone card holder will be poor, resulting in the card not being recognized. It is recommended to go to the business office of China Telecom, China Unicom or China Mobile to replace the SIM card with a new one.

Method 5, carefully flash the machine, software update, please go to the official mobile phone manufacturer**.

For some Android flashing enthusiasts, they often flash their phones in order to try some new features, new styles or new functions of the ROM, but then they can't recognize the SIM card.