I unrooted my phone to get OTA update but while updating in the boot screen, it stopped at around 25% with the red triangle and the Android bot then reboots automatically.
I have tried many times with no luck.
How should I go about this?
Android Enthusiasts Stack Exchange is a question and answer site for enthusiasts and power users of the Android operating system. It only takes a minute to sign up.Sign up to join this community
Since rooting changes the system image, the OTA update won't apply. You need to download the ROM (e.g. from sammobile.com) and flash it by hand (using Kies).