imei null note 4 n910u [how to solve]

hello, First, I will tell as the problem occurred, the client wrote a firmware different model, n910c, and kernel custom. when restarting, the note 4 Starting with IMEI null and baseband unknow. I flash the firmware 5.0 and root, then, i try writing efs with Z3X and not work, Also, i try with Odin but is the same,.. Finally, i copy and paste an efs with "root explorer", replacing it already had and the phone recover the signal but with generic IMEI and baseband working. then, i write a cert and the phone works fine.
I just want tell this solution in case someone needs.

I leave here 2 efs to try to solve.

backup efs 1
backup efs 2