The software will wipe the corrupt EFS storage space, recreate the basic partition structure, and inject the new identification signatures.
A: For software corruption, the success rate is high when using professional tools. However, if the persist partition has been overwritten by a foreign backup, the original IMEI may be lost forever. This is why a personal backup is critical.
A: This depends on your country. Repairing an IMEI to restore a device's original number is generally legal and accepted. However, changing the IMEI to a different number to bypass a carrier block is illegal in most jurisdictions. Always check your local laws.
Type the original numbers into the (and IMEI 2 if dual-SIM) input fields. Click the Repair button. Wait for the log window to state "Repairing IMEI... Done". Restart the device. Method B: Using Pandora Box / Software
: The exact stock ROM matching your device’s current security patch level. Device Preparation
Before using advanced tools, ensure the IMEI isn't simply "hidden" due to a software glitch:
: If the baseband reads "Unknown" alongside a missing IMEI, the modem partition itself is physically or logically broken. You must flash a complete stock firmware package via Fastboot to restore the modem baseband before the IMEI can be repaired.
To communicate with the device's baseband, you must enable the Diag port. Connect the phone to your PC.
Enter the found on your device's box or back panel.