1. bSudipta's Avatar
    I have a karbonn smart a12 star phone with android kit kat 4.2.2. Last 2 days i have noticed that the phone is always vibrating and not work properly. Screen not working. Work after power off mode. Help me.
    09-10-2014 01:45 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Try booting into Recovery Mode and wipe the cache partition, which won't erase any personal data. Follow these steps, but instead of selecting Wipe Data/Factory Reset, make sure you select Wipe Cache Partition. When complete, select Reboot System Now.

    Android Phone Solution: Karbonn A12 Hard Reset
    09-10-2014 02:34 AM

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