A progress bar crawls across the screen. . With a final command, the tool signals the phone to reboot. The silent slab vibrates, the logo appears, and the phone "wakes up" as if from a deep sleep, its memory wiped clean and its life restored.
sprd_diag -r --boot=nand --erase=userdata sprd u2s diag reset tool
: Restores or fixes IMEI numbers for network connectivity . A progress bar crawls across the screen