[Q] SGH-M919 Modem/BootLoader Question topic

Hey Everyone,

I'm currently running a Knox (Warranty VOID) bootloader, and M919UVUFNB4 Modem Firmware/Baseband on a Rooted T-Mobile SGH-M919 Galaxy S4, Running 5.0.1. Sometimes I get Emergency Calls Only/Insert Sim, and the only thing fixing this is a reboot.

I'm looking to update the Modem to Fix the Issue.
I Need a recommendation as to which Modem/Bootloader or Both do I need, that you know for a fact works.

What do I load 1st BootLoader or Modem and How to do both?

Sorry for Noob Question. Just don't want to screw things up.

Thanks.

[Q] Where can I find stock rom for SGH-M919 4.4.4? topic

I need to send this back in exchange or update. Have had sim card issues with 4 S4's now this being the 5th. With changing the sim cards many times.
So i need to format back to stock and send in.

Can't seem to find the rom or process to get it done with odin or w/e is needed

[q][need help] sgh-m919 bootlooping after upgrading to cm12 nightly topic

Hello,

I was rooting my girlfriend's phone, which is a Galaxy S4, TMobile. I rooted it from stock (4.3 or 4.4) using the chainfire method, then installed TWRP through their android app. First, it went through the [android is upgrading] and then it went back to the CM boot screen. Now I've spent a good 15 minutes watching it and it is still looping.

Can anyone guide me to a troubleshoot, or can anyone help walk me through trying to solve this problem?

Thank you in advance,

fabulousnotion