using Volume keys to "Recovery Mode" and select with the Power button. Select "Install update" > "Phone storage". Choose the downloaded firmware file and confirm to flash. ⚠️ Critical Precautions Tutorial for Firmware Installation - Vivo
centers on its transition through early Funtouch OS versions to maintain usability as a budget-friendly powerhouse The 2021 Firmware Snapshot PD1930F_EX_A_1.18.1. Release Date: May 8, 2021. File Size: Approximately 3,072 MB. Operating System: Based on Funtouch OS 9.1 (customized Android 9). vivo Official Site How to Update or Restore
: Typical stock ROM packages for this model include the firmware file, the QPST Tool (for Qualcomm-based flashing), and required Qualcomm USB Drivers . How to Install Updates You can update your firmware through two primary methods:
Flashing will completely erase your internal storage. Backup all photos, contacts, and messages.
If you encounter issues during the installation process or experience problems with your device after updating, try:
Extract the unpacked Vivo Y12i stock ROM folder containing the prog_emmc_firehose_xxxx.mbn and XML files on your PC. Launch the on your computer. Switch the configuration type to Flat Build .
: Resolves software corruption that keeps the device stuck on the Vivo boot logo.
: Navigate to Settings > System Update to check for and install the latest official releases automatically.
: Updates focused on enhancing system compatibility and overall stability for smoother daily performance.
If your device is stuck on the vivo logo or rebooting repeatedly (bootlooping), flashing the official firmware can restore it.
: Addressed existing software glitches, system bugs, and stability issues identified in earlier 2020 releases.