Lenovo A820 uninstalled the installed software, how to recover

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To System Settings Security Allow the installation of applications that are not obtained from the Le Store tick on I only know these and hope it can help you.

I've been having this issue lately as well. After clicking Install, it will finally show "App not installed", and many of the previously installed software cannot be installed now. But some can still be installed. Factory reset, still doesn't work,

Maybe you didn't get it done there, so why can't you install it?

If you need to flash the device, there is a certain risk in flashing the device by yourself and it will affect the normal warranty of your device. Therefore, we do not recommend that you flash the machine by yourself, you can choose to go to the local after-sales site to let the engineer assist in processing.

Lenovo authorized maintenance site query maintenance site business hours are usually Monday to Sunday 9:00-18:00, except holidays, the local site will be slightly adjusted according to their own operations, it is recommended to call for detailed consultation when you go, please refer to it.

Dear Lenovo mobile phone users, hello!

Sorry for the inconvenience caused to the normal use of your mobile phone. According to the description, the uninstalled software cannot be installed, it is recommended that you try to confirm and operate:

1. Android platform device, the format supported by the software is: apk, can not install software in other formats, please understand.

If it is the software copied from the computer to the mobile phone, it is recommended that you confirm whether the ** RAR and other compression problems, you need to decompress the apk format on the computer, and then copy it to the mobile phone memory card).

4. Go to the "System Settings - Storage" of the mobile phone to check the installation location of the software - whether the internal storage space is insufficient.

If the internal storage space is insufficient, you can uninstall some unimportant software before using, or go to the phone's "System Settings--Applications--Already**" to move some of the software that can be moved to the SD memory card, 5. In addition, it may also be caused by system abnormalities, it is recommended that you back up the important data of the fuselage, and then operate to restore the factory settings of the mobile phone to see if it can be solved.

6. If you have previously operated the root to obtain permission, and the uninstalled system program is abnormal, you need to re-flash the system to resume the use of the system.

If the problem persists, 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 engineers help test and solve the problem. You can log in to the official website to check the address.

Lenovo A808T This phone comes pre-installed with Android OS.

1. For general applications, just click Settings - Applications, and uninstall them after finding them.

It is recommended to connect the 360 mobile assistant on the computer to the mobile phone, and you can uninstall the software in the mobile phone with the 360 mobile assistant.

Dear Lenovo mobile phone users, hello!

It is recommended that you try to remove the battery and then put it back on and turn it on again to see if it can be turned on and used normally.

If there is an exception caused by deleting system-related programs or files after you have obtained root permissions, you need to flash the computer again to restore the use of the system. We recommend that you take the time to go to your local Lenovo service center and have an engineer help you get your system back in use. You can log in to the official website to check the address.

Lenovo brand phones are all stuck, and mine is the same.

That's because you've uninstalled important software, just use 360 or Phone Manager to recover. Adopt me if it works, and good luck!

I'm using it too, this phone doesn't work, mine is a lot like this now.