Default [Q] Probably defective EFS - how to restore?


My phone somehow got messed up (Unable to mount /efs) and what I had to do is create a new partition and link it. It solved most of my problems (EFS was usable again and I could install roms etc).

What happened though is I can't register to a mobile network. After doing my share research I came to a conclusion that probably my EFS is messed up and it could be the reason why.

Now, I don't have EFS backup from before this problem started, as I was using stock rom and not rooted.

Is it gonna do me any good if I take an EFS backup from someone ELSE and try to restore it on my phone??
If yes, anyone mind doing me the favor of sending me their EFS Backup?
If not, what else can I do?

I have tried the following:
1) Install various modems
2) Install various roms
3) Downgrade to 4.3, install modem and kernel and upgrading again
4) I even took my phone to a shop and they used some equipment to burn my imei

I am currently using:
DN3 rom v5.2
CWM Recovery


Edit: Solved by doing efs repair with the equipment thingy
LG G2 D802

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