1. AC Question's Avatar
    I have a galaxy s4 with model number sgh-1337 running 4.4.2 and it wont let me update. I get a notification saying I have a new update but when it comes time to install the update it gets to 25% and then reboots saying update failed. Ive tried a factory reset and it still didn't help. any help be great. thank you
    07-09-2015 05:38 PM
  2. Rukbat's Avatar
    25% is about the point at which the update detects a phone that's been rooted (even if you removed root) or has a non-stock ROM. You can only update a never-rooted stock ROM. (Updating anything else could brick the phone.)
    07-09-2015 07:13 PM

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