Why is the Samsung phone device modified, but the software can t be updated?

If the system of the mobile phone and tablet computer is upgraded, it indicates that the device has been modified, which is due to the system verification error during the device upgrade, which causes the upgrade to be incorrect. It is recommended that you bring your mobile phone, purchase invoice, and repair card to your local Samsung after-sales service center for testing.

It may be that system updates have been disabled, so they can't be updated.

What problems will occur with Samsung phones in general:

1. There is no call record for others to call ** for themselves or ** for others.

Cause analysis: All call logs may not be displayed or the call logs may be full.

2. You can't see your contacts (contacts).

Cause analysis: The mobile phone and SIM card are not selected in the "Display category" in "Contacts".

Solution: Go to "Contacts", click "Menu Key" - >Contacts to Display", and set the contacts to be displayed, such as "All Contacts".

3. No charging and no power on.

Reason analysis: A large part of the failure to charge and turn on the phone is caused by power shortage (the lower the battery level caused by the over-discharge of the mobile phone). Not charging, not turning on is just an illusion, just activate the battery.

Solution: Charge the phone with the original charger, usually a few minutes to ten minutes (sometimes it may take longer) to activate the battery. Charging information is displayed and can be turned back on.

Use a charger with a higher charging current (make sure the charger is produced by a regular manufacturer, and the charging current should not exceed 2A) to speed up the activation process.

In this case, it may be caused by the incompatibility of the Security Guard software, you can try to remove some Security Guard software on your phone to solve the problem, the specific steps are as follows:

1. On a Samsung phone, the problem occurs when trying to update directly on the phone.

3. Then please delete some application software such as Mobile Phone Guard, such as 360 Guard, Guard, Kingsoft Poison Bully, etc.

4. Click on the application you want to delete, and then click the "Uninstall" button to continue.

5. Then click the "OK" button to start uninstalling the app.

6. When the software such as Guardian and Butler on the mobile phone is uninstalled, please restart the mobile phone. After restarting the phone, please try to upgrade it wirelessly on the phone to see if it can be updated normally, if it still does not solve the problem, it is recommended to contact professional staff to solve the problem.

Samsung note2 system can not be updated, you can make Samsung mobile phone by restoring to factory settings, and then update the system, the specific process:

1. Take Samsung Note2 as an example, light up the desktop screen of the phone, find the [Settings] option on the desktop, and open it to enter.

2. Enter the settings interface, find the [General Management] option, and open it.

3. Enter the general management interface, find the [Reset] option, and open it.

4. Enter the reset interface, find the [Factory Reset Reset] option, and open it.

5. Finally, find and click the [Reset] option below to complete the factory reset of your phone.

Samsung Galaxy S3 appears: "Your device has been modified. Software update is not available". How does the system solve it?

Hello friends, this tip is usually because your Samsung Galaxy S3 has already carried out some operations according to the system, such as flashing, rooting, installing images, etc. If you want to continue upgrading your system, you can consider the following:1

Factory reset: Find "Backup & Reset" in the settings, select "Factory Reset", erase all data and apps, and return to factory mode. If you don't succeed, you can try step 2.

2.Flash: If you've done some unofficial work, you may need to flash your device back to the original system.

Please make sure you have backed up your important data and files, and follow the official tutorials and guides to flash your computer. It should be noted that flashing operation has certain risks and professionalism, before flashing operation, be sure to back up all the data and files of your device, and read the official flashing tutorial and related guides in detail. If you are not familiar with these operations, it is recommended that you contact the technical support of the manufacturer or professional to avoid unnecessary losses.