If your device is still partially functional, you can attempt a recovery before a full flash:
This is included in the stock ROM folder and directs the flash tool on where to write the data. vivo-y12s-pd2036f-stock-flash-file-firmware-rom
To manually flash the stock ROM, you typically need the following: If your device is still partially functional, you
The stock firmware (ROM) is essential for repairing software issues such as bootloops, "dead boot" scenarios, or forgotten locks. Official Firmware Download "dead boot" scenarios
Ensure you have the Vivo MTP/USB Drivers installed on your PC so the device is recognized in "Preloader" or "Fastboot" mode. Alternative Recovery Methods
For MediaTek-based models like the Y12s (Helio P35), the SP Flash Tool is commonly used.
Navigate to Settings > System upgrade to check for official OTA updates.