The following steps are standard industry practices for repairing these MTK (MediaTek) based devices:
| Tool | Purpose | |------|---------| | SP Flash Tool v5.2116+ | Read/write NVRAM partitions | | MTK Meta Utility | Regenerate NVRAM from scratch | | Hex Workshop / HxD | Manually edit IMEI in nvram.bin | | Maui META 3G | RF calibration backup | | ModemMeta | Write IMEI on MTK G-series | Poco c55 or Redmi-12c-earth- NvData NvRam File ...