Example: IMEI = 35 123456 789012 3 (15 digits)
: Reinstalling the original stock firmware can restore corrupted system files that handle IMEI data. Some users have found that downgrading to Android 9 restored their Serial Number, though the IMEI may still require further fix. Advanced Technical Repairs QCN and EFS Restoration asus rog 2 imei repair
A significant number of IMEI issues arose from users attempting to convert the "Tencent Games" edition (which typically lacks LTE band support for certain regions and uses different modem firmware) to the "WW" (Worldwide) firmware to unlock additional bands or receive faster updates. Flashing the wrong firmware can overwrite the OEM-specific calibration data, resulting in a hard brick of the radio stack. Example: IMEI = 35 123456 789012 3 (15