Instructions to obtain the serial number on Blackview devices

Blackview BV9800 Pro Blackview BV9800 Pro
Blackview BV9800 Blackview BV9800
Blackview BV9900 Blackview BV9900
Blackview A80 Pro Blackview A80 Pro
Blackview BV9900 Pro Blackview BV9900 Pro
Blackview BV9600E Blackview BV9600E
Blackview JK450 Blackview JK450
Blackview JK900 Blackview JK900
Blackview Crown Blackview Crown
Blackview DM550 Blackview DM550
Blackview Arrow Blackview Arrow
Blackview V3 Blackview V3
Blackview Ultra Blackview Ultra
Blackview Omega Blackview Omega
Blackview Acme Blackview Acme
Blackview Breeze Blackview Breeze
Blackview Alife S1 Blackview Alife S1
Blackview Zeta Blackview Zeta
Blackview Alife P1 Pro Blackview Alife P1 Pro
Blackview Omega Pro Blackview Omega Pro