Imei Null: N7100

"Security Analysis of Samsung's EFS File System and Baseband IMEI Protection" Published in: Proceedings of the 11th International Conference on Security of Information and Networks (SIN 2018), ACM.

If you are writing a paper or report, cite the ACM SIN 2018 paper as the academic source, and reference the XDA guide as the primary source for the specific N7100 null IMEI recovery procedure. n7100 imei null

Here is the most interesting and relevant paper that explains the underlying mechanics of why the N7100 suffers this, coupled with a classic forensic analysis of the aftermath. Why this paper is interesting for the "N7100 Null IMEI" case: The N7100 was notorious because Samsung stored critical radio calibration data (including the IMEI) in a proprietary stl or efs partition (often mmcblk0p3 ) using an RFS (Robust File System) with a custom FAT-like structure . A simple factory reset or a failed custom ROM flash could scramble the directory pointers, making the modem firmware read NULL instead of the IMEI. "Security Analysis of Samsung's EFS File System and