If your device is still partially functional, you can attempt a recovery before a full flash:
To manually flash the stock ROM, you typically need the following: vivo-y12s-pd2036f-stock-flash-file-firmware-rom
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 If your device is still partially functional, you
You can clear user data by holding Power + Volume Up to enter Recovery Mode and selecting "Clear Data". Warning: This will erase all photos, contacts, and personal files. and personal files.