[Q] No mobile network reception on i337 after flashing AOSP ROM
I have a new Samsung Galaxy S4 from ATT (i337) and am trying to install an AOSP rom on it. I tried couple of roms but all of them lead to disappearance of the network reception (basically empty triangle where the reception bars should be).
For example, I tried couple of i9505 roms like this one:
And even though everything works perfect, I still get no reception/empty triangle. I tried flashing ATT specific kernel, from here:
but that just causes the rom to freeze on boot. So, figuring that it may be a setting issue because I am installing i9505 rom on i337 device, I got Slim Rom for i337:
However, again, even though it boots and everything is working, I get no reception/empty triangle.
Finally, I tried changing the APN setting as per these instructions:
But again to no avail.
I really dislike the samsung rom with all the touchwiz and would love to run the google edition rom, but I can't find any info on how to set the network up. What do I do?