Help Vivo Y21 (V2111) diag port not enabled

[Mukesh Akar]

Dear p.s,
Please guide to Demo unlock vivo Y21 (V2111) by MRT or UMT, OR PROVIDE CODE TO ENABLE DIAG PORT. *#558# not work.

 

[Repairslab]

1st TRY WITH UMT DONGLE
FACTORY RESET
META MODE AND BOOT MODE (100% done in reno 6pro)