I tryied to unistall the app “du battery saver” , and others it seems to be a system since the only button that exist is “force stop”
Then after reading all post understood that i have to had root access, to freeze th app… i have tried every thing that i read but as you see on the screenshot the “system previleges” are open (note the phone did not reebot when i access to that menu, and i do not have any sim card installed) .
Then i thought maby is because the firmare it as trouble. So i want to update frmware, but when i try to put the file update.zip it is impossible (screenshot).
What can i do?