I have a Lenovo A806. The device was rooted and I downloaded a root uninstaller from the PlayStore to uninstall some apps that I couldn't otherwise.
In the process, among other apps, I deleted the only launcher I had on the phone (Lenovo Launcher) and I might have deleted the APK (not sure about the APK). The result was a black screen without any apps.
When turn on the phone I can see the home screen (same one you see before you unlock keyboard) and I also have some of the functionalities (eg messages, can make calls etc). However, if I open one of these functionalities and I click on the "back" button, the screen goes completely black and the phone goes unresponsive.
I tried to,
- reset factory settings by holding the Volume Up + Down + On/Off button which opened the "Lenovo Recovery" screen and I choosing the "wipe user data (both fuse format and fuse wipe data).
- install update package option and I rebooted the phone. Nothing of those worked.
Could anyone direct me towards the right way?