: Ensure your device is fully rooted. The diagnostic port must have read/write access permissions unlocked by the system kernel.
Mobile devices rely on unique identifiers (IMEI, MEID, NV items) for cellular network access, billing, and regulatory tracking. When these identifiers or the device’s EFS/NV partitions become corrupted (commonly after failed firmware flashes, custom ROM installs, or hardware faults), the device can lose network access or show errors like “Invalid IMEI” or “No Service.” Tools that can read, backup, and (when legal) restore IMEI and related NV data are used by technicians to recover devices to working condition.
: Link your device to the computer using a high-quality USB cable. Ensure the correct Qualcomm USB drivers are installed.
Carefully type in the original 15-digit IMEI numbers found on the phone's retail box or receipt. Double-check for accuracy. Qlm Imei Repair Tool V1.0.2 WORK Free Tool All Qualcomm
Alternatively, on certain older or specific device brands, you can open the stock phone dialer and enter specialized service codes to force the diagnostic port open: *#*#717717#*#* *#*#13491#*#*
Restart the device and check the IMEI by dialing *#06# .
Insert a valid SIM card to confirm that network registration, signal bars, and IMEI handshakes with cellular towers are working properly. Troubleshooting Common Errors Error: "Device Not Found" or "Failed to Open COM Port" : Ensure your device is fully rooted
Download and install the official Qualcomm HS-USB QDLoader 9008 / Diagnostics drivers. This allows Windows to assign a COM port to the connected handset.
The remains a valuable, free resource for users struggling with "Null" or "0" IMEI numbers on Qualcomm devices. Its straightforward interface and wide compatibility make it a go-to choice for restoring functionality to broken devices. Always remember to use such tools responsibly and to back up your data before proceeding.
Insert your SIM card to verify network registration and mobile data functionality. Troubleshooting Common Errors When these identifiers or the device’s EFS/NV partitions
Open the application and enter the default password ustest in the settings to log in.
Required for specific models to enable structural diagnostic permissions over ADB. How to Use QLM IMEI Repair Tool V1.0.2
To use this tool effectively, the following prerequisites are typically required:
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Android Bootloader Interface / Diagnostic Mode enabled via ADB Step-by-Step Guide to Using Qlm Imei Repair Tool V1.0.2