Losing service constantly - cannot get LTE - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I've been doing searches for a while and I haven't been able to figure out why this is going on. I was on Kangabean and just recently started losing service once in a while and had a hard time getting LTE. I upgraded to the latest Kit Kat version of the same rom and updated my baseband a few times using different ones and although it has improved, I'm still in the same boat. What I'm wondering is if this is an issue with the rom or if it is with hardware.

You have to have the 4.3 modem on 4.4 to get rid of the data drops. Also make sure you have your APN settings correct. PTA seems to be the best one for LTE. Google will help with finding that.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

graydiggy said:
You have to have the 4.3 modem on 4.4 to get rid of the data drops. Also make sure you have your APN settings correct. PTA seems to be the best one for LTE. Google will help with finding that.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I've had the PTA settings forever now. They're still my default. How do I go about getting the 4.3 modem on 4.4? What would I use?

Just look up rock ratt's post. He has all of the 4.3 modems set up as flashable zips. ?
Sent from my GT-I9505 using XDA Premium 4 mobile app
---------- Post added at 06:35 PM ---------- Previous post was at 06:16 PM ----------
http://forum.xda-developers.com/showthread.php?t=2496517. Just download and flash in recovery.
Sent from my GT-I9505 using XDA Premium 4 mobile app

JLopez149 said:
Just look up rock ratt's post. He has all of the 4.3 modems set up as flashable zips. ?
Sent from my GT-I9505 using XDA Premium 4 mobile app
---------- Post added at 06:35 PM ---------- Previous post was at 06:16 PM ----------
http://forum.xda-developers.com/showthread.php?t=2496517. Just download and flash in recovery.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Did that and got the modem. Service issues are okay now, but I every time I select LTE as network mode, it somehow ends up switching back to 3G

Related

[Q] i cannot update my firmware with kies, my s4 isnt rooted or anything

Your devices current firmware version is not supported to update firmware via Kies." Current firmware version: PDA:MF3/PHONE:MF3/CSC:MF3 (ATT)
that is the message i get when i try to update my samsung galaxy s4 at&t
here is my devices information
samsung sgh-i337
4.2.2
i want to update to 4.3, but att hasnt pushed my update yet.
anyone can help?
try manually setting your date and time ahead atleast 24hrs. then try and check for software updates. i had to set manually set mine ahead a couple times before it gave me the update. (i had same problem with kies, and i just did mine this morning)
jorgeb1024 said:
Your devices current firmware version is not supported to update firmware via Kies." Current firmware version: PDA:MF3/PHONE:MF3/CSC:MF3 (ATT)
that is the message i get when i try to update my samsung galaxy s4 at&t
here is my devices information
samsung sgh-i337
4.2.2
i want to update to 4.3, but att hasnt pushed my update yet.
anyone can help?
Click to expand...
Click to collapse
Hello, at&t has pulled the update due to glitches. Some people reported that their phones wouldn't even turn on. Also you can't update your at&t galaxy s4 on Kies because at&t put a block on that... The reason they did that is so they can add all of their NSA crapware to your phone and lock it so you can't modify it as easy. If you really want 4.3 I would install a custom ROM. I'm still on 4.2.2 rooted. 4.3 isn't all that good anyway. Nothing new.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 05:13 PM ---------- Previous post was at 05:11 PM ----------
ToastyyX said:
Hello, at&t has pulled the update due to glitches. Some people reported that their phones wouldn't even turn on. Also you can't update your at&t galaxy s4 on Kies because at&t put a block on that... The reason they did that is so they can add all of their NSA crapware to your phone and lock it so you can't modify it as easy. If you really want 4.3 I would install a custom ROM. I'm still on 4.2.2 rooted. 4.3 isn't all that good anyway. Nothing new.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
My apologies. Att has released it again but you still can't update via Kies.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
I did what ejbmvp said. Now my iphone will not update for the next 400 hours lol because I went all the way up to 12/15...att software update doesnt let u clear/reset. I think im screwed
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
jorgeb1024 said:
I did what ejbmvp said. Now my iphone will not update for the next 400 hours lol because I went all the way up to 12/15...att software update doesnt let u clear/reset. I think im screwed
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Um... Did you set it back?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Yes . Only because I kept going forward with no luck. So I put it back to the normal date.
Is there a way to hit that reset button on att software update settings. It appears greyed out.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
jorgeb1024 said:
I did what ejbmvp said. Now my iphone will not update for the next 400 hours lol because I went all the way up to 12/15...att software update doesnt let u clear/reset. I think im screwed
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
I did the same thing as you set it to 2015 and it let me look for updates, but it says update interrupted. Idk why but yeah. Maybe because I'm rooted idk. I wasn't updating anyway until a root method came out for mk2. Hopefully you can get it. If not take it to Best Buy and they can hook you up.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 04:08 AM ---------- Previous post was at 03:50 AM ----------
jorgeb1024 said:
Yes . Only because I kept going forward with no luck. So I put it back to the normal date.
Is there a way to hit that reset button on att software update settings. It appears greyed out.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Hmm... That's weird. Have you tried clearing the cache?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
i just checked mine and it still says i have to wait over 24hrs, so even tho my time and date are back to normal the update software still picks up when i fast forwarded my time/date. just a thought here, but i think the only way to reset that could be to flash back to stock with odin, but you would lose all data doing this. so its either probably doing that or keep trying to fast forward your time and checking.
ToastyyX said:
I did the same thing as you set it to 2015 and it let me look for updates, but it says update interrupted. Idk why but yeah. Maybe because I'm rooted idk. I wasn't updating anyway until a root method came out for mk2. Hopefully you can get it. If not take it to Best Buy and they can hook you up.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 04:08 AM ---------- Previous post was at 03:50 AM ----------
Hmm... That's weird. Have you tried clearing the cache?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Best buy doesn't even have 4.3 for the gs4 yet I already tried.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
---------- Post added at 08:44 PM ---------- Previous post was at 08:44 PM ----------
ejbmvp said:
i just checked mine and it still says i have to wait over 24hrs, so even tho my time and date are back to normal the update software still picks up when i fast forwarded my time/date. just a thought here, but i think the only way to reset that could be to flash back to stock with odin, but you would lose all data doing this. so its either probably doing that or keep trying to fast forward your time and checking.
Click to expand...
Click to collapse
Why don't you adb sideload the update?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
That's weird they don't have it... I just got the update notification after I defrosted the att update app thing with titanium. I'll update when there's a root method.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Switched to tmobile

So i switched over to Tmobile this month and i'm struggling getting the 4GLTE data speeds. I did the APN settings trick and i really cant do much more that i know of. IM on the stock 4.3 ATT firmware and rooted using the Kingo method. I tried to install Safestrat 3.65 but i can get it working.. I could just install a Tmobile ROM if i could use a custom recovery but i havent found a way to do it without a softbrick. I've got less than 5Mbps down so thats crap..
Tmo, is not known for really good LTE speeds or coverage.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Incorrect T-Mobile when using a tmobile branded device has very strong lte speeds.
Yes the coverage can be spotty at times ... rarely!
The problem when using AT&T phone with T Mobile SIM cards is that the lte bands are always compatible.
The AT&T s4 does Carry four LTE bands I use it and get great LTE signal with tmobile service. ...only with the AT&T s4 for instance if you use an AT&T note 2 or s3 with T Mobile service it is really bad.
The reason behind The weak or dropped lte isnt really so much for about the bands it is actually how the device is tuned to work with that carriers service.
To get safestrap recovery working download the AT&T s4 safestrap recovery and install it. Just like in apk file just click install .
Everytime you power off or reboot the phone it will first come to safestrap screen then you choose to boot into recovery or continue to boot into the normal operating system by choosing the very bottom left menu button for recovery or the far right button to boot into the phone normal system .
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
OP can't use SS on 4.3
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Yeah I already tried to use Safestrap knowing it may not be compatible. I even used wanam to set my phone into SeLinux permissive mode. The only thing i can think to try is to download the tmobile 4.3 firmware from sammobile but they keep saying their in a transition to a different download server and the firmware hasn't been moved yet.. anyone have the 4.3 tmobile firmware tar and modem for ODin? It should work because they are both same phone just modified through firmware. That would also give me wifi calling and some other good stuff
graydiggy said:
OP can't use SS on 4.3
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Do not use T-Mobile stock firmware. The modem and kernel will not work and you will not be able to flash the correct stuff. The firmwares are not the same.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 08:58 AM ---------- Previous post was at 08:56 AM ----------
Plus, the bootloaders are different so it won't flash anyways
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Yeah i tried anyway but my phone worked fine after, no data loss or anything. It didnt go to the tmobile firmware though unfortunately. I need to get to a tmobile ROM though and this restriction is killing me. HAs anyone found a working recovery for 4.3? Or is safe strap developing for it?
graydiggy said:
Do not use T-Mobile stock firmware. The modem and kernel will not work and you will not be able to flash the correct stuff. The firmwares are not the same.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 08:58 AM ---------- Previous post was at 08:56 AM ----------
Plus, the bootloaders are different so it won't flash anyways
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Wow is all I have to say
ROOTED ATT MK2 using Tapatalk
i'm not a noob and i knew the risks but i want the full tmobile experience hahaha I found better APN settings though that give me full LTE speeds for future reference:
http://www.4gtricks.com/2013/04/t-mobile-4g-apn-t-mobile-4g-apn-settings.html
jball said:
Wow is all I have to say
ROOTED ATT MK2 using Tapatalk
Click to expand...
Click to collapse
Why not trade for a tmobile phone? Then you'd have roms and an unlocked Bootloader.
Sent from my SGH-I337 using Tapatalk

Question about dialer dialer not hanging up.

Has anybody run into this problem (or something similar) :
Slim: I changed over to omnirom and when I press hang up the hang button greys out and it reads "hanging up" in the bar across the top but does not end the call.
Details:
SPH-L720
Android 4.4.2
Baseband Mdc
Kernel 3.4.75 omnirom stock
Omni version 4.4.2-20131225-jfltespr-nightly
I'm running mdc modem for a domestic unlock to tmobile and can upgrade to mf9 and keep the unlock. I've had this combo working 100% in Sacs rom before as well.
I've tried several different dialer apps from the play store
I've tried the post install flash zip from Omni
I've wiped the data and cache of the app itself and rebooted
I've wiped data, cache and dalvik , factory reset and rebooted
I need some advice on how to use logcat to properly log the details of the phone APK and how to read or interpret those logs and if that is even the best way to diagnose the problem.
I will also try to reinstall via odin the MDC modem only or possibly move up to mf9 if that doesn't work. I figure that the reinstall or upgrade paired with a fresh reset might do the trick.
Other than that any ideas are welcome.
Sent from my Nexus 7 using XDA Premium 4 mobile app
I am having the same issue any lick with a solution?
fbiiii said:
I am having the same issue any lick with a solution?
Click to expand...
Click to collapse
No dice, I upgraded the modem to mf9 and it still won't hang. I can force it to hang by switching to airplane mode tho as a temp fix.
Sent from my SPH-L720 using XDA Premium 4 mobile app
My bad I swear I sear he'd Google a million times before making a thread.. now I found this... guys I'm on the same boat... you can use any 4.2 rom... slim rom 4.4.3 official works but no sms... and data is wierd.. gives me roaming acts wierdddd
Sent from my SPH-L720 using XDA Premium 4 mobile app
---------- Post added at 07:58 AM ---------- Previous post was at 07:57 AM ----------
I upgraded firmware up to mk2
Sent from my SPH-L720 using XDA Premium 4 mobile app
cautious911 said:
My bad I swear I sear he'd Google a million times before making a thread.. now I found this... guys I'm on the same boat... you can use any 4.2 rom... slim rom 4.4.3 official works but no sms... and data is wierd.. gives me roaming acts wierdddd
Sent from my SPH-L720 using XDA Premium 4 mobile app
---------- Post added at 07:58 AM ---------- Previous post was at 07:57 AM ----------
I upgraded firmware up to mk2
Sent from my SPH-L720 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Word brother, I rolled it back to sacs v8 and it got me going for all calls etc. I was really just beating my head against the wall trying to use an aokp or aosp rom instead of toichwiz bit I can live with sacs rom for sure. Are you saying you did the full modem upgrade to mk2?if so I'd think that would work with KitKat roms, does it not?
I had this problem and it was an xposed module causing it. If you run any xposed modules you might want to check there.
Sent from my SPH-L720 using xda premium

Lost cellular data on stock rom slot (HELP!!!)

Hello All,
So, I successfully installed safestrap on my rooted gs4 with MK2. I was able to install hyperdrive rls12 and was able to text and make calls. I tried fixing the wifi by flashing some modules and now I don't have any cellular data when booting back into the stock rom. baseband shows empty, no calls, texts etc.
I have no clue what to do and how I can fix it, nor how I managed to mess up the stock rom slot.
Please help.
Thanks
djpuma said:
Hello All,
So, I successfully installed safestrap on my rooted gs4 with MK2. I was able to install hyperdrive rls12 and was able to text and make calls. I tried fixing the wifi by flashing some modules and now I don't have any cellular data when booting back into the stock rom. baseband shows empty, no calls, texts etc.
I have no clue what to do and how I can fix it, nor how I managed to mess up the stock rom slot.
Please help.
Thanks
Click to expand...
Click to collapse
I hope u made ur stock rom-slot backup before u do anything......if not try to enter APN manually if u are on AT&T network.....or u can try to install AT&TMK2kernelmodules.zip hope this help and hit THANK button if someone helped u......
I did make a backup. I fixed it by finding an mk2 modem. All working now. No WiFi on hyper drive rls12,but that's OK for now. Stock rom is all good.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
You will need to manually place the modules in /system/lib/modules, to get wifi to work.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 06:39 PM ---------- Previous post was at 06:39 PM ----------
They have to be MK2 modules
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
graydiggy said:
You will need to manually place the modules in /system/lib/modules, to get wifi to work.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
---------- Post added at 06:39 PM ---------- Previous post was at 06:39 PM ----------
They have to be MK2 modules
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks Graydiggy,
Do I have to do this from safestrap or can I do it while having the phone booted into a rom?
Use a root Explorer in the ROM to do it. It may or may not work. Some phones are iffy.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
I have es file explorer, but I get an error saying task failed. Read only or something. Don't have the exact error. can't rename, delete or move the original file.
Use Solid Explorer. I used to use ES but have found Solid to be ten times better.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Modem

Hello xda community,
Over the weekend I flashed MIUI rom on my N900 note 3, for that to work properly I had to flash a different modem.
So I switched modem (baseband?) from N900UBUDNC1 to N900XXUENE1.
Now my problem is that I can't find any way to download the modem N900UBUDNC1. I've been searching for hours.
If I reflash my stock firmware I don't have carrier signal because I still have the N900XXUENE1 modem installed.
Modems are generally hard to come by, you will have to download the whole firmware and extract just the modem from it. It's probably going to take time but what choice do you have.
http://samsung-updates.com/details/27880/Galaxy_Note_3_Exynos/SM-N900/TTT/N900UBUDND1.html
Sent from my SM-N9005 using XDA Premium 4 mobile app
---------- Post added at 04:06 PM ---------- Previous post was at 03:59 PM ----------
Or you can search harder next time, I think I just found you a rom here on xda with the same modem, much easier.
http://forum.xda-developers.com/showthread.php?t=2762609
Hope it works, have a good day.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Tjoohej said:
Modems are generally hard to come by, you will have to download the whole firmware and extract just the modem from it. It's probably going to take time but what choice do you have.
http://samsung-updates.com/details/27880/Galaxy_Note_3_Exynos/SM-N900/TTT/N900UBUDND1.html
Sent from my SM-N9005 using XDA Premium 4 mobile app
---------- Post added at 04:06 PM ---------- Previous post was at 03:59 PM ----------
Or you can search harder next time, I think I just found you a rom here on xda with the same modem, much easier.
http://forum.xda-developers.com/showthread.php?t=2762609
Hope it works, have a good day.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I searched for hours, trust me :|
I appreciate your help, I'll try this afternoon when I get home. I have the stock 4.4.2 firmware which I always use when I need to start from scratch. I'll extract that one and see if I can find the modem file there.
EDIT: will any NC1 modem work, or does it have to be specifically the one I originally had?
Sorry, I'm wrong guy to ask, hope it goes well, flash away!
Sent from my SM-N9005 using XDA Premium 4 mobile app
Ok, I've tried for some more hours yesterday, but couldn't get it to work. Tried Odin and also CWM.
It still doesn't work with stock rom... but when I go back to flashing MIUI + N900XXUENE1 modem (through CWM, first rom, then modem), I once again get signal.
I downloaded the latest firmware from sammobile (about 1.2GB) and from what I saw there, I should have modem N900UBUDNC1, but after succesfully flashing it, I have no signal, unknown baseband and IMEI
I'm sorry if this is kinda obvious, but I can't seem to get it to work. Luckily I am happy with MIUI, but I want to be sure there's a way to get back to stock.

Categories

Resources