REFERENCE mi redmi 3s pattern lock done via umt dongle

[ben_123]

open umt qfire 3.9
click Read & Tools
Brand - select Xiaomi
Model - select Redmi 3S
click Format FS
connect testpoint using tweezer then connect phone to pc - auto detect
wait until operation finished.

redmi 3s testpoint - just google

https://i.postimg.cc/63xDqSrP/redmi-3s-factory-reset.png