Read and Write Critical Data Mediatek Processor
Working with Critical Data on MediaTek (MTK) processors involves managing partitions that contain device-unique information like IMEI numbers, MAC addresses, and RF calibration data. If these are lost or corrupted, the device may lose network connectivity or become “hard bricked.”
Critical Partitions to Backup
Before performing any “Read” or “Write” operations, ensure you have backups of these specific partitions:
| Partition | Content Description |
| nvram | Most Critical. Contains IMEI, WiFi/Bluetooth MAC, and baseband info. |
| nvdata | Runtime modem configurations; works with NVRAM. |
| nvcfg | Variable configuration data for the modem. |
| proinfo | Device identification (Model, Region, Serial Number). |
| seccfg | Security configuration (Bootloader lock/unlock status). |
| persist | Factory reset resistant data (DRM keys, sensor calibration). |
| opporeserve | (Specific to Oppo/Realme/Vivo) Region and carrier locks. |