1. AC Question's Avatar
    I had a black screen with blue light indicator. Battery almost fully charged when this happened. Read I should clear partition cache.
    03-24-2017 10:18 PM
  2. Tim1954's Avatar
    That just clears the debris of unnecessary, fragmented system files and cache that is no longer needed. It's his to do this now and then to freshen the device up a bit.
    In Samsung galaxy, you turn the device off. Press power button, home and volume up buttons simultaneously. Once the Samsung logo appears, release the power button but keep pushing the other two until the android robot appears.
    Release the buttons and wait a little.
    The robot may fall over and play dead, ignore that and press the power button to see another screen with small writing.
    Use volume button to scroll down to wipe cache partition. Press power button to authorise the operation. You'll see the process in the bottom. When prompted, press power button to reboot the phone.
    Read the tiny writing carefully as you can do harm from this screen..
    03-24-2017 11:05 PM

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