on your PC; you should see "Qualcomm HS-USB Diagnostics" under Ports. 2. Backup Existing EFS (Optional but Recommended)
Open Mi Flash Tool, paste the folder path into the address bar, and click Refresh to see your device listed. repair imei poco x3 nfc
Some Poco X3 NFC users have reported that after an IMEI repair, while cellular functions work fine, NFC fails — particularly for contactless payments and transportation cards. The phone may still recognize NFC tags (like reading a transit card balance) but will not work with payment apps. In such cases, try: on your PC; you should see "Qualcomm HS-USB
Open and launch the Software Download application. Navigate to the Restore tab. Some Poco X3 NFC users have reported that
The most reliable and common method to repair a lost IMEI on a Qualcomm device like the Poco X3 NFC is by restoring a QCN file using Qualcomm's official QPST (Qualcomm Product Support Tools) tool. A QCN file is a backup of the phone's NV (Non-Volatile) memory items, which holds the IMEI and other essential calibration data.