Before attempting a software repair, confirm if the IMEI is actually missing or just hidden:

Before diving into the repair process, it is vital to understand what the IMEI is and why its absence causes network failure.

For repair shop owners or advanced users, hardware dongles offer a one-click solution. These are paid tools but are the most reliable.

: Changing or tampering with an IMEI number is illegal in many jurisdictions, as the IMEI is a unique identifier used by authorities and carriers to track stolen devices. "Repairing" generally refers to restoring the original IMEI found on the device's sticker or box.