step 1.off ang unit
2.baklast back cover
3.remove battery
4.test point
5.opoen unlocktool
6.oclick qualcomm snapdragon
7.click and hit vivo y11 coneet usb
2.baklast back cover
3.remove battery
4.test point
5.opoen unlocktool
6.oclick qualcomm snapdragon
7.click and hit vivo y11 coneet usb