With the device off, hold until the fastboot screen appears.
– For fully bricked or locked-down units, direct memory programming via JTAG pins on the motherboard. This is deep-level forensics territory. sunmi v1 unlock
Open a command prompt or terminal in your Platform Tools folder. Run the following: With the device off, hold until the fastboot screen appears
If your device is the slightly newer V1s (runs Android 6.0), you can use the same recovery method (Volume Down + Power) to wipe the device. To help you specifically, could you tell me: With the device off