The is a specialized utility primarily used for restoring or repairing IMEI numbers on mobile devices powered by Spreadtrum (SPD) or Unisoc chipsets. While it is a powerful tool for technicians, its use is strictly intended for legal repairs, such as restoring a lost IMEI after a firmware flash. Key Features
: Supports both "Calibration Mode" and "Normal Mode" (Diag mode) depending on the device state. Supported Devices write imei tool r300001 updated
For more comprehensive guides or alternative tools for other chipsets, technical forums like Hovatek or IMEIcheck.net provide updated tutorials and troubleshooting steps. Write IMEI Tool R3
Works with a broader range of processors, from older MT6572 to newer MT67xx series. Do not expect it to work on flagship
You will need the DB (Database) files usually found within the stock ROM folder of your specific device (look for files starting with BPLGU and APDB ).
Do not expect it to work on flagship Snapdragon 8 Gen 2 or Dimensity 9200 devices.
| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | Device not found on COM3 | Wrong mode or driver | Re-install drivers; manually select BROM mode. | | Checksum failed | Secure boot enabled | Use the "Updated" version with security bypass. | | Write failed at 0x5A | NVRAM locked | Flash a patched secro.img first. | | IMEI length invalid | Not 15 digits | Ensure no spaces or letters. |