There are many apk backup programs, including most of the better file managers.
If you have not been backing up your downloaded apps you should...
Call your carrier.
Nova or Apex launcher
The battery in your phone is a 4.2 Volt battery.
The USB port is 5 Volt.
The external battery is 4.2 Volt.
When you connecet your external...
You say android was unrooted, and you gave root access to "GL to SD".
Did you mean to say that android was rooted?
The fact that a quarter of the...