For P15/P16/P13/P11 Ultra/P11 Mopping/P11 Lite/P10 Ultra/P12
For Q8 Max/Q8/850T/M9/M9 Pro/X1/V10
For Q8/Q8 Max/850T/M9/M9 Pro/X1/X1S/V10/M8 Pro/T21/T22/L60
how to find the serial number
