VIVO ADB FORMAT TOOL Y91/Y93/Y95/V9/V11 TESTED
1ST BOOT PHONE IN RECOVERY
2ND CLICK IN ADVANCE
3RD CLICK REBOOT WITH ADB THEN CONNECT PHONE FIND MEDIATEK PORT NUMBER XX THEN OPEN TOOL WRITE PORT NUMBER AND CLICK BUTTTON DONE..........
NOW PHONE WILL RESTAR DONE........
there is a txt document with the instructions to follow, keep in mind to have installed live mtk drivers.