If you prefer not to buy a professional license, you can try using generic Qualcomm repair tools, though these carry a higher risk of "bricking" the phone. Enable Diag Port:
A widely used tool for Qualcomm-based devices. It can often read/write QCN (Qualcomm Calibration Network) files which store IMEI data. UnlockTool nokia 1.4 imei repair
Some users prefer Nokia-specific tools for their reliability and simplicity. If you prefer not to buy a professional
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