Why? Because unlike Xiaomi, OnePlus, or even Samsung’s Exynos variants, vivo actively engineers its bootloaders to be hostile to third-party development. This article is not a simple "how-to." It is a deep dive into the architecture, the locked bootloader problem, the MTK advantage, and the fragile state of custom ROM work for this device.

Go to Settings > About Phone and tap the Build Number 7 times to enable Developer Options, then toggle USB Debugging and OEM Unlock .

The , better known as the vivo V5 Plus , occupies a strange purgatory in the Android modding world. Launched in early 2017 with a dual front camera setup and a polished Funtouch OS, it was a mid-range darling. However, for the custom ROM enthusiast—the person who craves vanilla Android, LineageOS, or Pixel Experience—the vivo 1610 is infamous.