: In the service tool, select the "Write Cert" option and load the valid Patch Certificate
Before any modification, use TWRP recovery to back up the EFS partition. Save it to your PC and cloud storage.
For the , the cert file specifically holds: samsung g532g cert file
: Cert files are model-specific; for the SM-G532G, they are typically interchangeable with other variants like the SM-G532F. Processor Base : These files are primarily used for devices with processors, while Qualcomm-based models often rely on Prerequisites for Repair
The Z3X tool (version 3.9 or higher) has a built-in database of original cert files for the SM-G532G region codes (e.g., ZTO, XTC, DBT). This is the most reliable source. : In the service tool, select the "Write
Using a Samsung box tool (e.g., Z3X):
Chimera Tool bypasses the need for a separate cert file by rebuilding it from Samsung's servers. Processor Base : These files are primarily used
) file contains a unique digital signature and IMEI information registered in Samsung's database. : It validates the device's identity to the mobile network. Compatibility
In the US, UK, and EU, changing an IMEI to a non-original number is a criminal offense. The cert file should only be used to restore your device's own original IMEI, not to change it.
dd if=/dev/block/platform/.../by-name/EFS of=/sdcard/efs.img