Samsung Mdm Unlock Tool Rajaminus Upd -

Some poorly coded scripts accidentally wipe the EFS partition (where the IMEI is stored). Result: "Baseband Unknown" and "No SIM Card." Once the IMEI is null, the phone is a permanent Wi-Fi-only tablet.

Based on reverse-engineering reports from repair forums, the "Rajaminus UPD" tool exploits one of three legacy vulnerabilities: samsung mdm unlock tool rajaminus upd

The short answer: It depends on the model and security patch. Some poorly coded scripts accidentally wipe the EFS