Uncheck all partitions except NVRAM (and NVDATA if applicable).
There are two primary ways to obtain an MT6765 NVRAM database file: extracting it from a working phone via ADB or downloading it from a full firmware package.
| Issue | Consequence | |-------|--------------| | Flashing mismatched NVRAM from another device | Permanent radio calibration loss (Rx/Tx offset) | | Ignoring nvdata | IMEI reverts after reboot | | Wrong checksum in NVRAM header | Bootloop at "factory mode" | | Using SP Flash Tool "Format All + Download" without backup | Erases secure NVRAM (protect1/2) – hard brick possible | | Editing IMEI in hex without checksum fix | Phone rejects NVRAM → fallback to default factory IMEI (if any) |
Uncheck all partitions except NVRAM (and NVDATA if applicable).
There are two primary ways to obtain an MT6765 NVRAM database file: extracting it from a working phone via ADB or downloading it from a full firmware package.
| Issue | Consequence | |-------|--------------| | Flashing mismatched NVRAM from another device | Permanent radio calibration loss (Rx/Tx offset) | | Ignoring nvdata | IMEI reverts after reboot | | Wrong checksum in NVRAM header | Bootloop at "factory mode" | | Using SP Flash Tool "Format All + Download" without backup | Erases secure NVRAM (protect1/2) – hard brick possible | | Editing IMEI in hex without checksum fix | Phone rejects NVRAM → fallback to default factory IMEI (if any) |