Winstar s4 dead&logo fix firmware flash file download

Winstar s4 firmware flash file.

Winstar s4 firmware with dead recovery, logo hang,camera error, lcd fix,any lock reset, unfortunately gelarry has not suported,setting blank any problem solved flash file download.

Tested by-Mobile servising point.

SP7731E__Kimfly__Mito_A67__8.1.0__J5-zs99a-S-4-winstar-20200902__OPM2.171019.012__A67