VIVO Y91i unlock with merical 2.82
open merical 2.82 cpu mtk select service format 8 no boot select model select vivo y83 untick safe mode and auto advance frp tick click start 1 step.....power off your mobile 2. power buttom and volume down buttom same time 3. select recovery mode 4. advance 5.rebot with adb click just connect pc your mobile wait automitacly format dontwory driver automitac connect disconnect but no problem format your device please wait 2.minut succesfully format thanks nazrana tours CONTACT SUPPORT : 👉 TELEGRAM 👈