Flashing will erase everything. Save your photos, contacts, and messages.

Because for the past week, the monitor had been… whispering.

The is the low-level software that controls the phone’s hardware—touch screens, keypad, dual displays, battery management, and network radios. Outdated or corrupted firmware can lead to:

: Power off the device, click "Download" in the tool, and connect the phone to the PC while holding a volume button to initiate the data transfer. Crucial Note

If you are experiencing minor glitches, you might not need to flash the entire firmware. Consider these alternatives first: