Your computer must have the Qualcomm USB Drivers installed to detect the device in diagnostics mode.
Indicators to inspect before using
| Tool Name | Primary Use | Target User | | :--- | :--- | :--- | | | IMEI writing/repair | Advanced users, hobbyists | | QPST (Qualcomm Product Support Tools) | Comprehensive suite: firmware flashing, NV backup/restore, IMEI, MEID, MAC address management. An official and powerful collection of tools. | Professional technicians, developers | | QXDM (Qualcomm eXtensible Diagnostic Monitor) | Deep-level diagnostic and NV item editing. Offers fine-grained control for expert repairs. | Expert technicians, engineers | | Chimera Tool | Multi-brand commercial service software for unlocking, FRP removal, and IMEI repair. | Paid service centers, professionals | | Miracle Thunder / UMT QcFire | All-in-one professional service software for various chipsets, including advanced Qualcomm functions. | Paid service centers, professionals | qualcomm-smartphone-write-imei-tool-v1.01.zip
A successful operation is usually followed by a "Pass" message, after which the device must be rebooted to verify the change via *#06# . Important Considerations
IMEI corruption can stem from various sources: Your computer must have the Qualcomm USB Drivers
October 26, 2023 Subject: Technical Review and Risk Assessment of Qualcomm IMEI Repair Tool File Name: qualcomm-smartphone-write-imei-tool-v1.01.zip
Allows writing of both IMEI 1 and IMEI 2 simultaneously for dual-SIM Qualcomm smartphones. | Professional technicians, developers | | QXDM (Qualcomm
Boot the smartphone normally and connect it to the computer using a stable USB cable. Open your computer's and check under the "Ports (COM & LPT)" drop-down list. Ensure you see a device labeled Qualcomm HS-USB Diagnostics QDLoader alongside an assigned port identifier (e.g., COM3 , COM5 ). Step 3: Configure the IMEI Tool