1. Brittany Moss's Avatar
    I have had my s4 for about 8 months and for no reason at all it would randomly restart itself and then I did a system update and now it will randomly shut off and not restart itself. Im thinking it is probably a battery problem but im not completely sure. Does anyone know what other problems it could be? I checked the battery for swelling and it isnt swollen. Also does anyone know if tmobile will replace the battery for free?? Thanks!
    07-14-2014 09:39 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! Try booting into Recovery Mode and clearing the system cache partition: Reset: Samsung Galaxy S 4 | T-Mobile Support

    If that doesn't help, see what happens if you unmount your SD card (Settings>Storage), remove it, and reboot. A corrupt SD card can cause problems.

    It's always helpful to try a new battery. If you find out the battery wasn't the problem, at least you now have a backup battery.
    07-14-2014 10:00 PM

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