| Error | Probable Cause | Solution | |-------|----------------|----------| | | USB driver conflict | Reinstall drivers, use USB 2.0 port, disable driver signature enforcement | | PMT changed for the ROM | Previous partition mismatch | In SP Flash Tool, choose “Format All + Download” (backup first!) | | STATUS_BROM_CMD_SEND_DA_FAIL | Unstable USB connection | Try a different cable, remove USB hubs, use laptop battery power | | Phone not booting after flash | Wrong preloader | Download the correct variant (IN/ID/BD) – never mix preloader files | | IMEI = 0 or null | NVRAM wiped | Use Maui Meta Tool to rewrite IMEI from the box sticker |
Technically yes, using SP Flash Tool “Format All + Download”. However, downgrading may cause anti-rollback (ARB) errors if vivo enabled it. Check the anti-rollback flag in the scatter file. vivo y12i firmware 2021
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 . | Error | Probable Cause | Solution |