I recently updated my galaxy s4, and since then it keeps randomly rebooting. I have tried google for some solutions. I have tried a number of steps, such as taking battery out, clearing the cache, restarting the phone, deleting some recently downloaded apps but none of these steps have worked?

Does anyone else have any knowledge why this might be occurring? Or what I should do? Thank you.

Update 28/10/2014

After doing a factory reset the issue seems to have gone away, leading me to believe it must have been corrupted at some point downloading files/apps on to my phone.

2 Answers 2


I would do something else. Chances are high your firmware has an issue. Go to http://samsung-updates.com/, select your device and search for your provider. Download the full firmware (about 1.6 gb) unzip(only once). Get yourself Odin(its for windows only). Its on xda everywhere.

A wipe data and wipe cache from recovery mode would be helpful here. Hold on power button and volume up fore a while to go there, navigate using volume buttons. hit ok using power button.

Put your phone in download mode. (Turn off, hold down power button and volume down for a while, hit power up when the message appeared). Connect your phone to the pc. Odin should see it now. In Odin you have a bunch of buttons on the right, select the second from the top on the right there. Navigate to your unzipped firmware image. (A .tar.md5 file) select it. Hit start after the file loaded. Do not touch your setup during flashing.

Good luck!

Do not try to flash firmware that isn't designed for your phone. It can destroy it. (Worst case). You can hit getprop in a shell on the device to get all information about your device. The exact device type, firmware version, provider shortcut and so on.

Another approach is to use Samsung Kies. Kies allows you to do firmware updates and used to flash every system partition on the device, not just the changes as the ota does. If you already are at the newest firmware, it might not work cause there's no update.

  • there are about 10 different S4 devices with different hardware. For example GT-i9505, GT-i9506, SGH-i919, and so on. Just choose the right one. Sep 10, 2014 at 6:42
  • I am unfamiliar with Samsungs recovery, but isn't there a way to wipe the phone from recovery? That might trigger Kies to try and download + install the update again.
    – pzkpfw
    Sep 10, 2014 at 7:15
  • I've been using it a lot, but i never saw a firmware wipe there. Just wipe user data and cache. But this will not trigger a kies reflash. Sep 10, 2014 at 7:23

Your S4 firmware is corrupt some way. You should head to XDA forums and see tutorial for S4 rooting. Once you have read everything carefully and done all the steps correctly, you should install a custom rom for S4, since this would remove the random booting, if you haven't damaged the battery with water or anything. NOTE! Rooting is very risky if you don't know what you are doing! Maybe one of your friends has a rooted phone? Ask them or read more about rooting in google. Regards.

  • hmm i really wanted to avoid rooting it, i have never rooted before. But i guess if all else fails i will try it.
    – Haris
    Sep 9, 2014 at 23:08

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