Ok, I found how to update my H440AR to that polish MM. First of all, "AR" in H440AR stands for Lg spirits that were assembled in Argentina but it seems there's no difference in hardware terms to H440N and H440F just a ROM issue, I do remember from...
This is a short post theres not much to say since all these are stock roms. I just extracted the P4P MM rom from poland to make a TWRP flashable zip.
Main advantage is that we can keep recovery at the same time we run this MM rom so we can root b...
Kinda annoying, right? Like we waited around two years to get twrp and they can't wait some weeks more lol
Please try this: https://yadi.sk/d/1Dw4_bod3EgUMU
I'll give it a try!
Edit: I think that might be it! I get a black screen but no secure error msg. I'll give it another try
Edit2: OMG it works! It seems to be an issue with TWRP, CWM actua...
I'll give it a try soon, hopefully if the guys here are correct 4g/lte should work now. Thanks a lot!
Edit: apparently this fixed the issue regarding LTE using argentinian bands, I'll keep testing it but so far it holds even after a call and a lo...