How to root in Vodafone Smart Ultra 6 and Install TWRP recovery
The best way to root Vodafone Smart Ultra 6 is Kingroot 4.1. Just set on your data connection once installed. After that flash TWRP via Terminal Emulator or ADB Command. Once TWRP installed you need to change Kingroot apps to SuperSU. Just download all the requirements provided below. This method can brick your device without proper knowledge. Just follow the procedure properly. Now once your done, DO NOT UPDATE via OTA. It can bootloop or hardbrick of your device. You need to unroot and flash stock recovery first before to update your phone whenever update will show.
The reason why we need to root is to access all and modified your phone that can’t access in normal device and has limited option only. Because some useful apps nowadays, has need to be rooted first. The disadvantage you can’t update via OTA and only solution is to unroot it.
dd if=/sdcard/recovery-twrp2870-p839v55.img of=/dev/block/bootdevice/by-name/recovery