Before diving into the "how-to," it is crucial to address the current status of the software.
A: No. Rooted phones fail OTA verification. You must unroot via SuperSU or flash stock recovery first. vivo v5 nougat 7.0 update download
If the manual recovery fails (signature verification error), you have a modified system partition or a corrupt download. You will need to flash clean firmware using a PC tool. Before diving into the "how-to," it is crucial