Enter Diag Mode Spd !!better!! (DIRECT)
Reading/writing IMEI, NVRAM backup/restore, and hardware testing. Spreadtrum/UNISOC USB Drivers (e.g., SCI-USB-Serial). Detected Port
Open a Command Prompt (CMD) and type: adb shell su setprop sys.usb.config diag,adb
Entering Diag Mode on a Spreadtrum device is the first step toward advanced mobile repair. While the method works for 80% of devices, knowing the Dialer Codes and ADB commands ensures you can handle any situation.

