In essence, a custom ROM is a complete, third-party operating system built on the Android Open Source Project (AOSP). Replacing the stock Funtouch OS with a custom ROM offers several key benefits:
Your preferred (e.g., Android 12, 13, or 14)?
Back up all photos, contacts, and personal files. This process completely wipes your phone.
Installing a custom ROM on the ) is a complex process due to Vivo's strict security policies. While the device features a capable Snapdragon 665 processor
Download the following files to your PC or a compatible external microSD card:
Transfer the custom ROM .zip file (and GApps .zip if the ROM doesn’t include it) to your phone's internal storage or an SD card. In recovery, tap . Locate and select the custom ROM file. Swipe to confirm flashing.
Connect your phone to the PC, open a command prompt in your ADB folder, and type: adb reboot bootloader