: Dial *#1234# on your phone to find your current firmware version. You can only flash a version with the same or a higher binary number than your current one.
: Obtain the firmware ZIP for your specific region/CSC and extract it. You will typically see files starting with BL , AP , CP , and CSC . Enter Download Mode : Power off the phone. : Dial *#1234# on your phone to find
Click and select the AP file (this is the largest and may take time to load). Click CP and select the CP file. : Dial *#1234# on your phone to find