Xiaomi phones (Redmi Note 7/8/9) store IMEI in the RPMB partition of the eMMC. QLM v102 cannot write to RPMB. You will get "Write Successful" but the phone will still show "Invalid IMEI."
: The tool typically requires the device to be in Diagnostic Mode. On some Qualcomm devices, this can be enabled by dialing *#*#71717#*#* . qlm imei repair tool v102 free fixed tool all qualcomm link
Assuming you found a clean version (rare) and have a compatible phone (pre-2019), here is the workflow. Xiaomi phones (Redmi Note 7/8/9) store IMEI in
: Malware scans of the specific executable ( QLM IMEI REPAIR Tool_B19_V1.0.2.exe ) have previously shown no detected threats, though users should always use caution with third-party GSM tools. Step-by-Step Usage (General Method) qlm imei repair tool v102 free fixed tool all qualcomm link