Then surely OTA update messed up while replacing updated files. There
are so many things that can go wrong during an OTA update. This is why
downloading whole firmware from sammobile and then flashing it by odin
is best and safest method to update. I...
Myabe it's wrong timing. When you press volume down & power key to force
reboot, the moment screen goes black & you feel vibration, quickly
release both keys and quickly press volume up & power key together
(volume up should pe pressed slightly earli...
Device is not certified comes if the OEM (bootloader) is unlocked in
developer options since google has started to use hardware attestation
key to check bootloader status. If you have locked bootloader then try
clearing "data" of google play services...