I have done a lot of research and tried several methods, but got nowhere yet and I was hoping someone could probably help me restoring my phone back to normal.
I was trying to install a different baseband version on my international N9005 (Android 4.4.2) with ODIN and it all went fine (a process that I have done a good number of times already). However, when I restarted the phone, I got into a boot loop and after wiping cache and dalvik I got the phone to start. The problem is that the phone is now showing baseband unknown and IMEI null, which somehow also causes problems on the whole system, the phone goes a lot slower, the camera does not work, the clock app either, etc.
Just so you have the right information, I live in the UK and I originally had modem version XXUENB1, after which I have tried several others such as XXUENC2, XXUENF2, DXNE3 and ZHNE6, being the latter the last I had after trying to install version XXUENE3, which is the one that left my phone out cold.
I do my backups using Philz recovery, and I have a few EFS backups using it, which I have tried to restore with no luck. The EFS backups have 4 files ('efs.ext4.tar'; 'efs.ext4.tar.a'; 'nandroid.md5'; and 'recovery.log'). Also, I have another EFS backup that I did which is one file only, 'efs_20140531_122400.img'.
I have also tried restoring old full system backups and a brand new firmware via ODIN but I got the same result (I haven't yet tried a full restore with separate CSC, PHONE, PDA, Modem and PIT files as I am waiting for the files to download). Again, I have tried installing different baseband versions with ODIN which I know that worked in the past, but no changes.
I do not know what else to try. Anybody has any ideas?
Thanks in advance.