Open rawprogram0.xml in Notepad++.
Critical change: Look for the userdata partition. If you repack with userdata, you will wipe the internal storage every time. Change the attribute to:
<program SECTOR_SIZE_IN_BYTES="512" file_sector_offset="0" filename="" label="userdata" .../>
(Remove the filename="userdata.img" line to preserve data during flashing).
Repacking the Y12i firmware requires a specific sequence:
If you flash in the wrong order (system before vbmeta), the phone locks its eMMC read-only. Congratulations — you now own a vivo-branded paperweight. vivo y12i firmware repack
Step 1: Disable Driver Signature (Windows 10/11)
Restart PC → Press F7 or use shift + restart → Disable Driver Signature Enforcement.
Step 2: Load the Repack in SP Flash Tool Open rawprogram0
Step 3: Set Download Agent
Click Options → Download → Download Agent → Browse to the repack folder → Select MTK_AllInOne_DA_bypass.bin.
Step 4: Execute the Flash
What to expect: