Installing a custom recovery like TWRP on your Vivo Y71 (released in 2018) opens up the ability to flash custom ROMs, create full system backups, and gain root access. Since this device runs Android 8.1 Oreo, it follows the standard fastboot flashing procedures common for that era.
fastboot boot twrp_vivo_y71_full.img
A full TWRP Vivo Y71 transforms this budget phone into a customization beast. You can root, debloat, backup, and revive the device with modern Android versions long after Vivo stops supporting it. twrp vivo y71 full
fastboot flash recovery twrp_vivo_y71_full.img Installing a custom recovery like TWRP on your
To get back to original state: