If you still have partial NVRAM/IMEI data, make a backup in TWRP before attempting any fixes.
Before attempting a repair, it is crucial to understand what causes this issue. The IMEI number is stored in a dedicated, protected storage area of your phone’s internal flash memory, usually referred to as the EFS or NVRAM partition. Common Causes of IMEI Corruption
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Open on your Windows PC. Look under ports (COM & LPT) for Qualcomm HS-USB Android DIAG Professional along with a assigned COM port number (e.g., COM5). Step 3: Wipe Corrupted EFS Partitions
Because a QCN file contains specific hardware signatures, you must use a clean POCO X3 NFC QCN file and edit it to match the original IMEI printed on your phone's box. Open or a hex editor tool on your PC. Load a verified POCO X3 NFC QCN file. If you still have partial NVRAM/IMEI data, make
While still in the adb shell (with su access), type the following commands sequentially to wipe the corrupted EFS partitions:
Complete Guide: How to Repair IMEI on POCO X3 NFC (Surya) An IMEI (International Mobile Equipment Identity) number is the unique identification number for your mobile device. If your displays an "IMEI Null," "Invalid IMEI," or "0" after flashing a custom ROM, improper firmware update, or unlocking the bootloader, you will lose cellular service (calls, SMS, data). Common Causes of IMEI Corruption This public link
Click on the tab first to save your current broken configuration (just in case). Switch over to the Restore tab.
adb shell su dumpsys iphonesubinfo
: Most Qualcomm flashing and diagnostic tools require Windows 10 or 11.
If your Poco X3 NFC is showing IMEI issues due to corruption, flashing failures, or after a repair, here are legal, safe steps you can take to resolve it:
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