This is a lightweight factory tool designed to write IMEI numbers to Qualcomm chipsets. Flashing a new IMEI after chipset failure.
This is a lightweight, standalone Windows utility designed explicitly for rewriting IMEI signatures without navigating complex factory development suites.
Modern Qualcomm chips (SDM660 and later) have SBL / abl authentication. Diag mode is locked unless the device is already rooted or the bootloader is unlocked. Many phones reject writes to NV 550 even with SPC.
Always attempt to back up your current QCN (Qualcomm Calibration Network) or EFS data before writing new parameters. Even a corrupted backup is better than no backup if the partition layout changes during formatting. Top Qualcomm IMEI Repair Tools (No Box Required)
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