stuff you need to download to root your vivo v9/v9+
SuperSu
ADB Drivers
TWRP Recovery
1. First of all, keep it in mind that the rooting process requires the installed custom TWP Recovery on your device.
2. When it comes to enabling USB debugging, you need to visit Settings -> About Phone -> Tap on Build number till to see the message on display screen like “You are now a developer.”
3. You can now have the developer option, so visit Settings -> Developer options -> Enable USB debugging...
Read more
SuperSu
ADB Drivers
TWRP Recovery
1. First of all, keep it in mind that the rooting process requires the installed custom TWP Recovery on your device.
2. When it comes to enabling USB debugging, you need to visit Settings -> About Phone -> Tap on Build number till to see the message on display screen like “You are now a developer.”
3. You can now have the developer option, so visit Settings -> Developer options -> Enable USB debugging...
Read more