[Q] JFLTEXX ROMs on variant devices? - Galaxy S 4 Q&A, Help & Troubleshooting

Hello everybody,
I have a JFLTEUSC (US Cellular variant of the Galaxy S4) and I use dual boot patcher with touchwiz 4.4.2 and Optimized CM13 (JDCTeam) roms. I was wondering if I could remove CM13 and try a JFLTEXX rom (like Resurrection Remix) without totally screwing up my wireless and 4G and all that fun stuff. I ask this because in the CM13 thread, it specifically says that it will work with my variant. A few months ago I tried to flash official CM11 for my phone and got it stuck in roaming. Fortunately, I managed to fix that (Change some setting I forgot to RUIM/SIM). Then recently while using CM13 I somehow dropped all my signal and couldn't make calls, send texts, nothing. I had to call *22899 to reactivate it. I just a little paranoid that one of these days I'm gonna royally screw it up and have to take it into the store.
Thank you!

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[Q] Need help... Flashed CM 11 to Galaxy s4.. Problems!!

Model: Galaxy S4 SCH-R970UK
Carrier: US Cellular
Problem: Cannot activate phone. No LTE/MMS
So I flashed the CM 11 Nightly Rom to my S4. It went well, The bootloader didn't put the brakes on me. It booted and I was loving the rom, I begin the *228 activation process and it doesn't go through successfully. I rebooted and removed the battery hoping it would remedy the situation.
Nope.
After many, MANY failed attempts, conversations with US Cellular Technical Support, A visit to the store.. I decided to factory reset and flash the stock firmware to the device. Did all that.. Still no activation.
I need help please, If anyone can give me a heads up where to go from here.
Currently looking at a different version (same model) of the Stock Firmware. Not sure if I should trust the source though.
Side question, Is Terafile.co, More specifically Samsung-updates.com ...?

[Q] Cyanogenmod on USCC S4 issue

I had an issue where when I installed Cyanogenmod that my S4 was stuck in roaming. USCC tried for two hours to get it working but then filed for a replacement under warranty. Well I got this one running after trying many things. I used ODIN to go back to kitkat and followed this post.
http://teamuscellular.com/Forum/topic/2592-last-attempt-to-fix-stuck-in-roaming-mode-for-the-sgs3/
It worked and fixed the roaming issue and now I can use my phone as like before.
I want to use Cyanogenmod but what can I do to avoid this issue again? Also, where can I find other ROMs compatible with my device?

i9505 i337m canada mobile network connectivity

Hello All,
I have a samsung galaxy s4 i337m in canada using the rogers netowork. Ive been using customs roms shortly after i got this phone. Ive used samsung rom, original, GPE but eventually settled on Cyanogenmod. I use TWRP for the i9505 which allows me to use any rom (since CM12 doesnt have a build for the i337m, and other builds wont flash in a i337m TWRP).
Anyway ive been using CM 12.1 with a i9505 build for some time, and it works great. I had to update my modem to the NI2 build to get it to work, but its been working flawless ever since.
Now to my problem, buddy has an S4, same model, same carrier. He claims he needs a new phone and i beg to differ. I rooted, installed twrp (i9505)and cm12.1 (i9505). works great, however no network connectivity. I remember i need a new modem, try the same one that works with mine....nothing... try a different one.... nothing. calls and SMS, but not data of any speed.
Reverting to kitkat roms results in it working perfectly (multiple modems). both from his original Nandroid and CM 11. All lollipop roms seems to have the same issue, no mobile data. Wifi works fine. No issues with SIM card, switched them between the two phones and confirmed its HIS phone with the issue.
Im a little puzzled, can someone recommend a modem to load? should I try to use TWRP an CM12 for the ATT variant/ different variant? I want to help him but this is making me look amateur (even if its true).
Thanks ahead of time.

Samsung S5 15 Samsung eMMC's SM900V

What is the best ROM to use on the Samsung S5 15 Samsung eMMC's SM900V? Now that Samsung S5 15 Samsung eMMC's SM900V is unlockable.
Has anyone had any problems with installing and using TWRP3?
I'm hoping a couple suggestions pop up. So I may understand what is available.
Sent from XT1575, Stock 6.0 MM, Systemless root
Check out the dev edition threads since we sould be able to do everything they can now :3
I'm currently running TWRP 3 and the CM 13 kltevzw rom since I can't figure out how to make any of the others work right(sms and voice not functioning, but LTE data works fine.) I think it has to do with them being GSM roms and not CDMA.
If there is any interest in PAC-ROM I'll update my repos and start building since I own the right S5
talktosamson said:
I'm currently running TWRP 3 and the CM 13 kltevzw rom since I can't figure out how to make any of the others work right(sms and voice not functioning, but LTE data works fine.) I think it has to do with them being GSM roms and not CDMA.
Click to expand...
Click to collapse
If you have things not working you need to do a full wipe man. Mine's working fine.

Lets Talk about Sprint!

Hya Everyone! I wanted to try and open up some life into those of us still using the Sprint Variant of the Note 4. It is so easy to get lost in the noise of the general forums and what works for the Korea variant may not work for our CDMA variant! So with that... let me hear what ROM you are using and how you like it! Also.. did you upgrade the Baseband past QI5? Any regrets??? Here are my burning topics.
1. SMS over LTE
2. What happens with T-Mobile? Should we load the T-Mobile basebands?
3. Absolute most stable ROM.
4. What version of TWRP are you using?
5. WiFi calling and/or HotSpot use.
Share your stories!!!
Lets also talk about how to switch our current phone to TMobile!
Uh, yeah. NOT much love for the CDMA variants of the Note 4 for newer OS's and the SMS over LTE AKA SMS over SGs issue. I'm currently running LOS 14.1.2 (Android 7.1.2) because anything much higher on QI5 wouldn't send texts. I found an older post where someone flashed an older previous baseband (Android 6?) using the newer OS's and that worked to fix the SMS issues, but I don't know how to make the "correct" needed files (which I have) into a TWRP flashable zip. After more digging, TWRP itself has the baseband files built into it, so flashing an older version might work, but I gave up after screwing around with it for 3 months.
"What happens with T-Mobile? Should we load the T-Mobile basebands?"
As long as your Note 4 is working on LTE fine there shouldn't be any difference Sprint vs T-mobile from what I've been told. 3G is going to be shut down in Jan 2022 though so...
I wouldn't upgrade the Baseband to QI5 because it seems that locks out older solutions for the SMS over LTE from working.
Absolute most stable ROM?
The only ones I've seen being regularly worked on still is the unofficial Lineage and Havoc OS's.

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