Instructions to obtain the serial number on Oppo devices

Oppo A83 Oppo A83
Oppo F5 Youth Oppo F5 Youth
Oppo F5 Oppo F5
Oppo R11s Plus Oppo R11s Plus
Oppo R11s Oppo R11s
Oppo A71 Oppo A71
Oppo U701 Ulike Oppo U701 Ulike
Oppo Find Oppo Find
Oppo R815T Clover Oppo R815T Clover
Oppo R817 Real Oppo R817 Real
Oppo T29 Oppo T29
Oppo R811 Real Oppo R811 Real
Oppo R821T FInd Muse Oppo R821T FInd Muse
Oppo R601 Oppo R601
Oppo U705T Ulike 2 Oppo U705T Ulike 2
Oppo Find 5 Oppo Find 5
Oppo R819 Oppo R819
Oppo N1 Oppo N1
Oppo R1 R829T Oppo R1 R829T
Oppo Neo Oppo Neo