Hey, I hate to necro this thread, but I'm having a similar problem. Mine might be a little weirder, though.
After terminating my contract with Verizon I switched my M8 to Straight Talk a few months ago.
I flashed LolliGPE, digitalhigh's GPE-base...
Darn, no dice. I'll keep working at it.
EDIT: I might have it. I checked for a system update and it updated my device configuration, and suddenly I could connect to LTE. Sweet! Looks like the APN's name changed to tftwo.gw9.vzwentp too. I'm gonn...
If this fixes everyone's boot I deserve some thanks haha
+1 Supercid allowed me to boot up just fine! Thanks!
I've seen a few people on here say they have problems with SMS, mine is working fine, although I have not tried MMS.
Be sure to remove the spaces and if I remember correctly there are words in parenthesis at the beginning of each line. Those need removed as well. I'd give better detail but I'm at work atm.
Sent from my XT1028 using xda app-developers app