Lenovo A390t phone has android upgrade every time it restarts

If you can't upgrade the system, it is recommended that you go to the "System Settings - Storage" of your phone to check whether the default software installation location - "Internal Storage" has enough space left. You can try to uninstall some of the software, or go to your phone's "System Settings - Applications - Already" to move some of the removable software to the built-in memory card of the body, and then try to install it.

In addition, if the system upgrade is repeatedly prompted, it should be that the system is abnormal. You can also back up your data and try to use it by restoring it to factory settings.

It's not okay to only install re.,You have to root.,Give re advanced permissions.,It is recommended to use the root master for one-click root! Then go to the system app to delete the apk files that start with up and so on, of course, you must confirm it before deleting it, otherwise it is easy to become a small brick!

Can't delete your phone may not be rooted!

The following answers are from:

1、Use the RE manager to enter the system framework2、Delete the following two files: Remind LZ that there will be a RE manager after flashing, if you want to flash the machine, there will be "one-click root".

Why delete the system files, it's not good if the system crashes, or upgrade honestly, or don't restart it and keep it powered.

You can turn off that upgrade. It's a good idea to upgrade.

The most respected Lenovo mobile phone judge hail household, hello!

Sorry for the inconvenience caused to the normal use of your mobile phone.

Boot prompt upgrade, it may be that there is a related system software automatically updated and upgraded before the last system shutdown, you can use it normally after waiting patiently, it is recommended that you observe and use.

However, problems such as "automatic shutdown after full charge" and "charging does not turn off after resetting factory settings" did not occur with the A390T used in personal testing.

According to the description, if the system is abnormal, it may be due to some third-party software conflicts caused by the system abnormality, it is recommended that you try to back up the important data of the body, and then restore the factory settings of the phone to see if it can be improved.

If there are some previous operations involving the system level, such as flashing third-party firmware or root to obtain permissions, you need to re-flash the machine to restore the use of the system.

If you have flashing experience, want to restore the system by yourself, and are willing to bear the possible risks, I personally recommend that you go to the Lenovo official Lewen bar firmware area**The official firmware of your mobile phone.

The official firmware is the offline flash firmware in the shutdown state, and the built-in detailed tutorial is required, please operate carefully).

If it cannot be effectively solved, we recommend that you take the time to go to your local Lenovo after-sales service center and let the engineer help test and solve the problem. You can log in to the official website to check the address.

Hello. The boot prompt is upgraded, it may be that the relevant system software has been automatically updated and upgraded before the last system shutdown, it is recommended that you wait patiently for a while to use it normally.

If it is abnormal, every time you boot it will prompt that Android is being upgraded, it may be caused by an abnormal system, it is recommended that you plug in the battery and reboot it to try, if you can enter the system to operate after restarting, we recommend that you back up the important information of the body, and restore the factory settings of the mobile phone to see if it can be solved. (System Settings - Reset - Factory Reset below).

Since we can't see the specific situation of your phone remotely, if the problem still persists or the reboot still indicates that the upgrade is being made and the system cannot be entered, we recommend that you take the time to go to the local Lenovo after-sales service center and let the engineer help detect and solve it.

Officially authorized repair site inquiry.

You are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

Deduct the battery first, then take the SD card off, and then install the battery to turn it on.

Hello. The boot prompts to upgrade, it may be that the relevant system software has been automatically updated and upgraded before the last system shutdown, it is recommended that you wait patiently for a while to use it normally. The key is missing.

If it is abnormal, every time you boot it will prompt that Android is being upgraded, so that Liangmin may be caused by system abnormality, if you can enter the system to operate, we recommend that you back up the important data of the fuselage, and restore the factory settings of the phone to see if it can be solved. (System Settings - Reset - Factory Reset below).

Since we can't see the specific situation of your phone remotely, if the problem persists, we recommend that you take the time to go to your local Lenovo after-sales service center and let the engineer help detect and solve it.

Officially authorized repair site inquiry.

You are welcome to contact us or visit Lenovo at any time

Consult to find out.

Keep restarting, my one is infinite restart, but as long as you enter the flash mode, you can restore the factory settings.