Based on community development (XDA, Telegram, 4PDA), these ROMs have been unofficially ported for certain Y51 variants:
An AOSP-based project focused on keeping things simple, clean, and functional. ArrowOS cuts out unnecessary customization features to deliver maximum battery life and lightning-fast interface response times. Essential Prerequisites Before Flashing vivo y51 custom rom upd
Once the phone enters fastboot mode, input: fastboot oem unlock Based on community development (XDA, Telegram, 4PDA), these