Do I need a patched DA file? Thanks.

This error typically occurs when using engineering tools (like Maui META, SPD Upgrade Tool, or QPST) to restore or repair a device's IMEI number. It indicates the software cannot write the new IMEI to the phone’s NVRAM (Non-Volatile Random Access Memory) or modem partition.

(Comment replies would suggest: Check NVRAM partition size, disable antivirus, or use Modem META instead.) Error Code: WRITE_IMEI_TARGET_FAILED

The host tool successfully connected to the target’s download agent (DA) but failed to commit the IMEI value to the non-volatile storage region (typically NVRAM sector 0x05 for IMEI1).

🔹 Are you using Windows 10/11? 👉 Yes → Disable Driver Signature Enforcement and reinstall MTK/USB drivers. 👉 No → Skip to Step 2.

Trying to restore IMEI on my [Phone Model] using Maui META but keep getting "Write IMEI to Target Failed" at 99%.