[Q] Losing LTE with custom ROMS - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

I'm posting this here because I don't have enough credits to post in the development forum. I've been installing various custom roms on my Sprint Galaxy S4 (Carbon, Sacs, to name a few). The ROMs seem to be working fine except for the fact that the phone will not connect over LTE, only 3G. I've tried all sorts of kernel/ROM combinations, profile updates, PRL updates, but when I restore to my MF9 backup, 4G comes back.
Can anyone confirm that it's possible to connect to LTE with a custom ROM.

I am running Sacs v7.2. I only have patches of 4G where I live, but when I get into one of those areas, it works fine.

AzWizzard said:
I am running Sacs v7.2. I only have patches of 4G where I live, but when I get into one of those areas, it works fine.
Click to expand...
Click to collapse
Also works fine on Sacs rom for me.

Works fine on free gs4 also
Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2

Thanks. That's interesting. I was most recently trying Sacs. I started with a stock MF9. I rooted it with CF auto, installed TWRP 2.6.3.0, and flashed Sacs. Right then, 4G stopped.
I heard there may be problems with TWRP 2.6.3.0.

gyurko said:
Thanks. That's interesting. I was most recently trying Sacs. I started with a stock MF9. I rooted it with CF auto, installed TWRP 2.6.3.0, and flashed Sacs. Right then, 4G stopped.
I heard there may be problems with TWRP 2.6.3.0.
Click to expand...
Click to collapse
Yeah flash to twrp 2.5.0.2
Sent from my SPH-L720 using xda app-developers app

im running slim with twrp 2.6.3.0 and i have 4g everywhere i go

xxaddictedxx said:
im running slim with twrp 2.6.3.0 and i have 4g everywhere i go
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Click to collapse
I'm wondering if it's due to the fact that Sprint is just turning on 4G around here. Even with it stock, 4G is on and off all day. I just noticed that.

gyurko said:
I'm wondering if it's due to the fact that Sprint is just turning on 4G around here. Even with it stock, 4G is on and off all day. I just noticed that.
Click to expand...
Click to collapse
more than likely.....it was real spotty when they started building towers here as well

That was the problem. Working with 7.2.

It's working on 8.0 as well.

Anyone seeing a problem with Bluetooth LE in Sacs v8.0?

Related

aosp lte issue

I have no idea why this seems only to be happening to my phone... I get zero 4g despite my phone showing 4g. I have updated profile and prl in tw... I have tried twrp and cwm. I just can't get 4g on a aosp ROM. Any help would be appreciated. Both screen shots show speed tests in the same place while I was at work.
It's been known that aosp in Many cases causes this. My last phone epic 4g touch was the same way. Flash stock rom and data speeds back to normal
Sent from my SPH-L720 using Tapatalk 2
wojo797 said:
I have no idea why this seems only to be happening to my phone... I get zero 4g despite my phone showing 4g. I have updated profile and prl in tw... I have tried twrp and cwm. I just can't get 4g on a aosp ROM. Any help would be appreciated. Both screen shots show speed tests in the same place while I was at work.
Click to expand...
Click to collapse
I have had issues with aosp when I would dirty flash. I'm currently running Carbon and 4g is running great. Just try a clean install. Could also consider that we are mostly on nightlys and unofficial releases. No telling as of yet but I'm getting pretty good speeds on Carbon
Sent from my SPH-L720 using xda app-developers app
jaaybs said:
I have had issues with aosp when I would dirty flash. I'm currently running Carbon and 4g is running great. Just try a clean install. Could also consider that we are mostly on nightlys and unofficial releases. No telling as of yet but I'm getting pretty good speeds on Carbon
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
I always do a full wipe before I flash a aosp ROM.. I seem to be the only one on the forums having this issue. the only thing I can think of is a bad modem. Haven't found a flashable modem so I may unroot odin stock and reroot and see what that gets me. I only run aosp roms on all my phones...this is killing me
wojo797 said:
I always do a full wipe before I flash a aosp ROM.. I seem to be the only one on the forums having this issue. the only thing I can think of is a bad modem. Haven't found a flashable modem so I may unroot odin stock and reroot and see what that gets me. I only run aosp roms on all my phones...this is killing me
Click to expand...
Click to collapse
From what I understand we can't flash modems yet. Are you on MDL or MDC? I have had issues with the modem on TW after unrooting on MDL, but they were fixed when I reinstalled the update from Sprint.
Not really sure how the radios interact with AOSP, but could have something to do with the differences between the update.

Just coming back to the s4 after being gone about a month

Hello all. As I wrote in my title, I'm just coming back to the s4 after being gone for about a month. I've flashed a few roms and I've noticed that data stops working on almost all the ones I've tried. I tried the Google edition and flashed a different kernel to get WiFi working--when I did WiFi worked but data was broken. Then I tried tri force, data did not work. Finally I tried the one with the weird name (sorry--I know that doesn't help much but I know viper appears in quite a few places in the thread). I am currently on liquid smooth (cm based 10.1) and thankfully it's flawless. I love it but I like variety and I wish I could find a debloated TW rom to play around with. Why it's the data borked on so many of them? I'm not exactly a noob--been an android user for years and I've flashed many a roms. I don't think I'm doing anything wrong, unless there's something different or weird with the s4. Can anyone kindly shed some light on my predicament? I'm now downloading negalite. Gonna see if that one has functioning data. It almost seems as tho you have to flash a custom kernel all the time now to get data. Is this right? Thanks in advance!
Sent from my SPH-L720 using Tapatalk 2
EDIT: rom name I couldn't remember is visionX (by the axman)
Been on Triforce since July with KTkernal and haven't had any issues at all. Negalite is a good one, I like it a lot. If you stick with it think about setting up svn as there's lots of updates.
Sent from my SPH-L720
HPferoxCraft said:
Been on Triforce since July with KTkernal and haven't had any issues at all. Negalite is a good one, I like it a lot. If you stick with it think about setting up svn as there's lots of updates.
Sent from my SPH-L720
Click to expand...
Click to collapse
R u on MF9?
Sent from my SPH-L720 using Tapatalk 2
I have no idea why as I've tried everything I can think of and read but aosp runs better on my S4 than tw, as crazy as that sounds its been true for me. I love Aosp so I'm good. I'm on mf9 via otas and tried all recoveries made and always end up with some type of system or phone fc or the "detected an app".. .blah blah warning which annoys the crap outa me so I just stay on aosp as there are a ton of great ones for us and they work wonderfully -the once in a while call bug which I do not come across that much really ams when I do I made a shortcut for fast reboot via rom toolbox and just hit it when it happens and its good.
Sent from my S4 from the BeanStalk/Chronickernel
pathtologos said:
R u on MF9?
Sent from my SPH-L720 using Tapatalk 2
Click to expand...
Click to collapse
Yes I am, data, wifi and all that are fine. Haven't had even one reboot with Triforce, battery life is great. I really have not had any issue with it at all, it's rock solid for my phone.
Sent from my SPH-L720
Well I installed negalite and so far it's perfect. Everything seems to be working & it has a great amount of tweaking enabled. Thanks guys. Now I have a solid aosp rom and a solid TW rom. I'm one happy camper.
Sent from my SPH-L720 using Tapatalk 2
pathtologos said:
Well I installed negalite and so far it's perfect. Everything seems to be working & it has a great amount of tweaking enabled. Thanks guys. Now I have a solid aosp rom and a solid TW rom. I'm one happy camper.
Sent from my SPH-L720 using Tapatalk 2
Click to expand...
Click to collapse
Just FYI.....If you flash a TW MF9 rom with the stock kernel and WiFi is broken after boot (can and has happened with Negalite, TriForce, etc) there is a modified stock kernel that can be flashed to fix if needed.
CCallahan said:
Just FYI.....If you flash a TW MF9 rom with the stock kernel and WiFi is broken after boot (can and has happened with Negalite, TriForce, etc) there is a modified stock kernel that can be flashed to fix if needed.
Click to expand...
Click to collapse
Where at?!
Joe0113 said:
Where at?!
Click to expand...
Click to collapse
+1
Sent from my SPH-L720 using Tapatalk 2
Joe0113 said:
Where at?!
Click to expand...
Click to collapse
The one Nega posted works good: http://www.download.negalite.com/Negalite_S4_Mods/Negalite_Stock_MF9_Kernel.zip
Sent from my SPH-L720 using Tapatalk 4
I must be lucky, because I have had no such issues with any rom (AOSP or TW). If I flash the stock rooted MF9 rom followed by the stock MF9 kernel, I have wifi and data. Same goes for any other TW rom as well as every AOSP rom I've tried.
Sent from my SPH-L720 using XDA Premium 4 mobile app

Successful MMS and 4G LTE with Cyanogenmod on Sprint S4?

Has anyone with a Sprint Galaxy S4 found a stable combo of any Cyanogenmod build and modem that allows for: 1. Consistently successful MMS sending and receiving AND 2. Stable 4G LTE that hands off well between it and both 3G and WiFi?
In the alternative, any specific tweaks to APN settings to allow for items 1 and 2 above?
If you have found such a successful combination, please post here, and please be as detailed as possible (CM build, baseband version, specific APN settings, etc) , thanks!!!
Cheers,
VegasRooted
I hear you on this. I've had to disable LTE in order to get the phone to work properly, since the Phone would become non-operational after LTE signal would drop out.
Sent from my SPH-L720 using Tapatalk
I was on CM11 12/22 and Beanstalk 4.3 and used this..
http://buzzmobile.us/sprint-apn-settings-android-us/
Now I'm on ProBam and all seems to work well. My MMS on WiFi is sporadic at best but on MMs and LTE/3G I'm ok.
Hope it works for you.
Sent from my SPH-L720 using XDA Premium 4 mobile app
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
isaac2k10 said:
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
Click to expand...
Click to collapse
Did you make any changes to your APN settings? Thanks!
isaac2k10 said:
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
Click to expand...
Click to collapse
So how well does your LTE hand-off to 3g? I have to go into airplane mode in order to get 3g working after leaving LTE, (even though the phone claims to be connected to 3g after dropping off of LTE)
Sent from my SPH-L720 using Tapatalk
random45 said:
So how well does your LTE hand-off to 3g? I have to go into airplane mode in order to get 3g working after leaving LTE, (even though the phone claims to be connected to 3g after dropping off of LTE)
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
switches fine for me. Never had to use airplane mode
VegasRooted said:
Did you make any changes to your APN settings? Thanks!
Click to expand...
Click to collapse
No changes, whatever was in there while on The is what is in there now
sent from Isaac's GS4
Thank You
isaac2k10 said:
switches fine for me. Never had to use airplane mode
No changes, whatever was in there while on The is what is in there now
sent from Isaac's GS4
Click to expand...
Click to collapse
Thank you very much, I'll try the latest nightlies of CM11. They must be working better than CM10 as far as MMS & LTE is concerned. One last question: which type (and version) of recovery did you use for your CM11 flash? (TWRP, CWM, etc.) Thanks again!
Cheers,
VegasRooted
VegasRooted said:
Thank you very much, I'll try the latest nightlies of CM11. They must be working better than CM10 as far as MMS & LTE is concerned. One last question: which type (and version) of recovery did you use for your CM11 flash? (TWRP, CWM, etc.) Thanks again!
Cheers,
VegasRooted
Click to expand...
Click to collapse
I'm using Philz recovery which is cwm based
sent from Isaac's GS4
Thanks
isaac2k10 said:
I'm using Philz recovery which is cwm based
sent from Isaac's GS4
Click to expand...
Click to collapse
Excellent, thanks again.
VegasRooted
I'm on the latest CM11 nightly (1/10/14). 4G works fine for me, but mms is very spotty. It works right after I boot my phone, then it stops working. I don't know why it happens, but I receieve MMS messages right when the phone boots, then it stops working. My modem is MF9. I'm not sure what exactly is causing this problem. Would flashing a new modem help? If so, how would I do it?
Update
Yes, I would recommend that you try flashing the MK2 modem.
All is working well for me now: MMS sending & receiving, good hand-off between 1X, 3G, 4G LTE, and WIFI, etc.
I'm now running the latest CM 11 nightly (1/13/14) with the stock MK2 modem, and I'm using CWM 6.0.4.4 as my recovery.
FYI:
Just for kicks, I went back to the last (stable) version of CM 10 to see if MMS played any better with the MK2 modem (since I would still prefer to stay on CM 10; I just like JB 4.3 better), but unfortunately I encountered the exact same results that had caused me to start this thread in the first place: bad MMS functionality, bad hand-off between 3G, 4G & WIFI. So... I guess on 4.4 (CM 11) I shall remain....
Thanks again to everyone for their contribution(s) to this thread, you all have been very helpful!
Cheers,
VegasRooted
MK2 Modem
gundam802 said:
I'm on the latest CM11 nightly (1/10/14). 4G works fine for me, but mms is very spotty. It works right after I boot my phone, then it stops working. I don't know why it happens, but I receieve MMS messages right when the phone boots, then it stops working. My modem is MF9. I'm not sure what exactly is causing this problem. Would flashing a new modem help? If so, how would I do it?
Click to expand...
Click to collapse
You can get the MK2 Modem from here: https://www.androidfilehost.com/?fid=23252070760974263
The proper MD5 sum for it is: 39b0b32a8ee338543fdaa91ab2774f79
This is a flashable TAR, so you can just use Odin to flash it from download mode.
Cheers!
VegasRooted
VegasRooted said:
You can get the MK2 Modem from here: https://www.androidfilehost.com/?fid=23252070760974263
The proper MD5 sum for it is: 39b0b32a8ee338543fdaa91ab2774f79
This is a flashable TAR, so you can just use Odin to flash it from download mode.
Cheers!
VegasRooted
Click to expand...
Click to collapse
Thanks for help I flashed the new modem and it didn't do anything. I started apps from startup and discovered that AdBlock Plus blocks mms because it monitors port 80, the same port MMS is sent on. I fixed my problem by uninstalling ABP and I use AdAway as a replacement.
sorry for asking this guys but does the CM11 lets you SIM UNLOCK the phone as well im asking this because thats what im focus on many thanks
im just new in this new era world....god bless y'all

Honest opinion if you have a second

A little background. I have a S4 vzw and my Girl has the AT&T NC1 Safestrapped. She's not digging Hyper too much or any other VZW ported and flashable rom on her phone. Honestly i'm looking for ROM suggestions? I was honestly thinking stock modified with xposed to the max, but GPS not working for her i guess is an issue... Your thoughts and opinions would be great
Goldeneye 36 flashed with att NC1 modules and att APN build prop file (and supersu). I'm using it no problems.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Frankenscript said:
Goldeneye 36 flashed with att NC1 modules and att APN build prop file (and supersu). I'm using it no problems.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
Thanx for that one. popped it on her phone and she's setting it up and shes at least smiling and not punching me. GPS not locking is i guess an issue with a lot of AT&T roms i'm seeing. know of a fix or anything? This ROM looked cool and easy on aroma and considering im on the Loki bootloader this wasnt too hard to figure out.
Also how can 55 people view this and only 1 response? really people? really? dont help no one out or anything with giving your 2 cents or nothing.
The GoldenEye ROM should not have GPS issues on I337. No trouble on mine.
Process I used: I've got NC1 stock system, towelrooted, supersu, safestrap. Boot to safestrap recovery. Do full advanced wipe except SDcard, then flashed rom, supersu, att NC1 modules, then att APN build prop file. GPS works, WIFI works, no trouble installing any apps, it's all good.
We're you at NC1 baseband to start?
I used GPS all day yesterday on a trip... worked great but man it drains battery on the G4!
Are you sure GPS was working when you started the process?
Maybe others will have suggestions for a fix. Sorry!
Marc
Sent from my SAMSUNG-SGH-I337 using Tapatalk
http://forum.xda-developers.com/showthread.php?t=2767026
If you are wanting to get away from touchwhiz I believe you will enjoy that ROM. GPS works there are a couple of minor issues.
Sent from my GT-I9505G using XDA Free mobile app
Butchr said:
http://forum.xda-developers.com/showthread.php?t=2767026
If you are wanting to get away from touchwhiz I believe you will enjoy that ROM. GPS works there are a couple of minor issues.
Sent from my GT-I9505G using XDA Free mobile app
Click to expand...
Click to collapse
This is a good ROM but no WIFI tethering last time I checked. Sigh.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
You are correct. No WiFi teether.
Sent from my GT-I9505G using XDA Free mobile app
Frankenscript said:
The GoldenEye ROM should not have GPS issues on I337. No trouble on mine.
Process I used: I've got NC1 stock system, towelrooted, supersu, safestrap. Boot to safestrap recovery. Do full advanced wipe except SDcard, then flashed rom, supersu, att NC1 modules, then att APN build prop file. GPS works, WIFI works, no trouble installing any apps, it's all good.
We're you at NC1 baseband to start?
I used GPS all day yesterday on a trip... worked great but man it drains battery on the G4!
Are you sure GPS was working when you started the process?
Maybe others will have suggestions for a fix. Sorry!
Marc
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
her phone was the nk2 version until she got outta jail and i upgraded to nb1 and did the whole update thru stock recovery file to make it nc1. she was running stock modded there for a minute everything working great. she wanted flavor and i switched ROMs for her, tried hyper and couldnt get it working right away and then we had issues so i restored her stock backup. gps was showing 2 blocks 30 m away and wouldnt update position in real time. Flashed to hyper, again, and she ran it for a week no issue, except the dialer not working and no mms. Went to GoldenEye and she's ok with it. havent heard much about gps although we walked my dog last night and it was 20 meters off. (hyper on my phone and hers would lock us within 2-6 meters believe it or not). Shes testing it out in the morning though.
O n i pulled the NC1 modules from that toolkit even though its a different size file than the modules floating around.
Butchr said:
http://forum.xda-developers.com/showthread.php?t=2767026
If you are wanting to get away from touchwhiz I believe you will enjoy that ROM. GPS works there are a couple of minor issues.
Sent from my GT-I9505G using XDA Free mobile app
Click to expand...
Click to collapse
Butchr said:
You are correct. No WiFi teether.
Sent from my GT-I9505G using XDA Free mobile app
Click to expand...
Click to collapse
i love asop Roms. She doesnt and likes TW and even Sense.. On my old phone i fell in love with beanstalk n CM10. this phone not too much but i love the "freedom" of loki exploit.

Aio galaxy s4 root and recovery?? I337z

So I have another galaxy s4 in the house and it's code name is jflteaio i337z but the thing is the model number is the same as crickets galaxy s4 so dose that mean I could root it and download twrp recovery for it in the name of the Cricket model?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Plz I need help
Sent from my SAMSUNG-SGH-I337 using Tapatalk
itzdajosh said:
So I have another galaxy s4 in the house and it's code name is jflteaio i337z but the thing is the model number is the same as crickets galaxy s4 so dose that mean I could root it and download twrp recovery for it in the name of the Cricket model?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
I have an SGH-i337z on Cricket and I was able to root and install TWRP using hroark13's method (http://forum.xda-developers.com/gal...cket-aio-sgh-i337z-jflteaio-twrp-2-7-t2858698)
I've been trying various CM builds, the Google Play Edition ROM and PACMAN, but they all seem to have issues (5GHz WiFi, one app or another not working properly, notification glitches). To be fair, they are AT&T ROMs. Also, it takes a bit of work to install as you have to remove the asserts line from each ROM before installing. But if you just want to root and use TWRP to backup it works fine!
timebear said:
I have an SGH-i337z on Cricket and I was able to root and install TWRP using hroark13's method (http://forum.xda-developers.com/gal...cket-aio-sgh-i337z-jflteaio-twrp-2-7-t2858698)
I've been trying various CM builds, the Google Play Edition ROM and PACMAN, but they all seem to have issues (5GHz WiFi, one app or another not working properly, notification glitches). To be fair, they are AT&T ROMs. Also, it takes a bit of work to install as you have to remove the asserts line from each ROM before installing. But if you just want to root and use TWRP to backup it works fine!
Click to expand...
Click to collapse
Just out of curiosity, was the GPE ROM you tried the Lollipop one? Also, are there any roms for this phone that work well and stable in your experience?
I haven't tried any lollipop roms yet. The 4.4.4 kitkat GPE ROM was stable with the exception of breaking a music streaming app I use (subsonic). It was also the only ROM that identified the carrier as Cricket instead of AT&T.
Pacman I didn't really like so i can't speak much for its stability.
CM11 can be hit or miss. The nightly seem more stable than the stable or milestone versions usually, but one gave me 5GHz wifi problems. I was never able to use 5GHz with the milestone I tried.
Right now i am using 12/13 nightly CM11 and it has been running very well. I really like the slider shortcuts on the CM lock screen, so I'll probably just stick with CM.
timebear said:
I haven't tried any lollipop roms yet. The 4.4.4 kitkat GPE ROM was stable with the exception of breaking a music streaming app I use (subsonic). It was also the only ROM that identified the carrier as Cricket instead of AT&T.
Pacman I didn't really like so i can't speak much for its stability.
CM11 can be hit or miss. The nightly seem more stable than the stable or milestone versions usually, but one gave me 5GHz wifi problems. I was never able to use 5GHz with the milestone I tried.
Right now i am using 12/13 nightly CM11 and it has been running very well. I really like the slider shortcuts on the CM lock screen, so I'll probably just stick with CM.
Click to expand...
Click to collapse
So cm is working good for you, and if not is there any good Roms available?
itzdajosh said:
So cm is working good for you, and if not is there any good Roms available?
Click to expand...
Click to collapse
Yes, CM11 is working great! If anything is broken I haven't come across it yet. There are certainly a lot available and any unified or AT&T ROM should work (no need for safestrap), so feel free to try out anything that looks good! I liked GPE and it seemed to work really well until I found it didn't work with one app I use occasionally (subsonic). You might not have any issues with apps you use. I also seemed to get better battery life with GPE. The wifi issue I had with an older CM11 build seems to have been fixed, so that's working well now. The author of the root I used seems to like Skyfall, so you could go that way if you like touchwiz.
Have some fun trying out a couple, and make a backup before installing something different so you can easily go back if you decide you liked one better.
timebear said:
Yes, CM11 is working great! If anything is broken I haven't come across it yet. There are certainly a lot available and any unified or AT&T ROM should work (no need for safestrap), so feel free to try out anything that looks good! I liked GPE and it seemed to work really well until I found it didn't work with one app I use occasionally (subsonic). You might not have any issues with apps you use. I also seemed to get better battery life with GPE. The wifi issue I had with an older CM11 build seems to have been fixed, so that's working well now. The author of the root I used seems to like Skyfall, so you could go that way if you like touchwiz.
Have some fun trying out a couple, and make a backup before installing something different so you can easily go back if you decide you liked one better.
Click to expand...
Click to collapse
Thanks for the help! And one other thing, can you try out cm12 so I can get that.. And then tell me if it's behaving good with the phone.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
FWIW, I've gotten Goldeneye, Skyfall and stock T-mobile running on my i337z with TWRP. I figured out that I needed to flash my phone's modules after flashing a touchwiz ROM for it to boot and run correctly. My i337z is on ND3. I uploaded the ND3 and NE2 modules in this post: http://forum.xda-developers.com/showpost.php?p=57407130&postcount=75.
bonchien said:
FWIW, I've gotten Goldeneye, Skyfall and stock T-mobile running on my i337z with TWRP. I figured out that I needed to flash my phone's modules after flashing a touchwiz ROM for it to boot and run correctly. My i337z is on ND3. I uploaded the ND3 and NE2 modules in this post: http://forum.xda-developers.com/showpost.php?p=57407130&postcount=75.
Click to expand...
Click to collapse
Yeah I'm on 4.2.2
Sent from my SAMSUNG-SGH-I337 using Tapatalk

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