[Q]4G LTE not working - Galaxy S 4 Q&A, Help & Troubleshooting

Hi
I've just changed service provider and then my phone stopped using LTE. I only get 3G or h (+something)
I tried calling my service provider to see if anything is wrong but they said that everything should be working. I tried a full wipe, wipe sd, system, data. And I flashed the latest slimrom (went from android 4.4.2 to 4.4.4) but nothing changed.
Sometimes when I try to make a call theres no sound during the call.
I think I need a new modem. Any suggestions?
My current modem is: i9505XXUEML6
Best regards Kasper

not working lte
my rom XXUGNG8 it's not working lte

Related

[HELP] X on top of signal bars! No service

Hi Youngers!
I got a friend's Y that doesn't have any signal or service with a working SIM. It only displays an X on top of the empty signal bars. I configured it's APN, and flashed another modem , but it's still doesn't work. Any help will be appreciated.
HolloWX said:
Hi Youngers!
I got a friend's Y that doesn't have any signal or service with a working SIM. It only displays an X on top of the empty signal bars. I configured it's APN, and flashed another modem , but it's still doesn't work. Any help will be appreciated.
Click to expand...
Click to collapse
Try some troubleshooting. Test his sim on another phone and see if it works there.
Is he on a custom rom? Creeds Rom 3.4 had a bug where you cant see the signal even though it has a signal. Can he still send messages even when signal bar is X?
Also, APN wont do anything for the signal, its only for mobile internet browsing with your carrier. Hmmm... are you talking about surfing through your carrier? or basic services like calls and texts?
glennlevi said:
Try some troubleshooting. Test his sim on another phone and see if it works there.
Is he on a custom rom? Creeds Rom 3.4 had a bug where you cant see the signal even though it has a signal. Can he still send messages even when signal bar is X?
Also, APN wont do anything for the signal, its only for mobile internet browsing with your carrier. Hmmm... are you talking about surfing through your carrier? or basic services like calls and texts?
Click to expand...
Click to collapse
Thanks for replying! It's running creed's v2. When you try to place a call it says "Mobile Network not Available". I tried his SIM card on an unlocked Atrix 4G and it made a call successfully. Texting doesn't work either. He said when he had this problem he took it to some unlock/repair shop and they failed to state what exactly was causing this.
HolloWX said:
Thanks for replying! It's running creed's v2. When you try to place a call it says "Mobile Network not Available". I tried his SIM card on an unlocked Atrix 4G and it made a call successfully. Texting doesn't work either. He said when he had this problem he took it to some unlock/repair shop and they failed to state what exactly was causing this.
Click to expand...
Click to collapse
try going to airplane mode then switch back
leodasal2 said:
try going to airplane mode then switch back
Click to expand...
Click to collapse
If all else fails, go back to stock rom or try another rom
(Though I suggest latest stock rom with merruk kernel and superuser opened)
glennlevi said:
If all else fails, go back to stock rom or try another rom
(Though I suggest latest stock rom with merruk kernel and superuser opened)
Click to expand...
Click to collapse
leodasal2 said:
try going to airplane mode then switch back
Click to expand...
Click to collapse
I flashed the ROM below, after i flashed it, booted up then i installed merruk 2.0 final. Did the airplane mode, but it still doesn't work. The APN looks fine. I really don't know what's causing this.
S5360B_UTKI3_ZTAKI3_UTKI3
Brazil
based on: S5360BUTKI3_S5360ZTAKI3_S5360BUTKI3_HOME.tar.md5
ro.build.date=Thu Sep 22 13:27:09 KST 2011
ro.build.version.release=2.3.5
Included CSCs:
ZTA only (Claro)
Included languages:
UT = en,es,pt
Your phone is network locked or something like that I guess.
Best way to get it solved is to post your query in this thread:
http://forum.xda-developers.com/showthread.php?t=1647703
Doky73 will surely help you out
I advise to flash this pack: S5360B_UTLC2_ZTOLC_UTLC1 (open Brasil)
Flash all 3 part (PDA, MODEM, CSC)
If it does not help, then send me your bml15.img.SAVE (made by Galaxy Toolbox)
hey pal i also encountered this kind of problem before after patching Creeds ROM. What i did was I reflash the rom with stock Galaxy Y via ODIN or after the first successful boot of selected customize ROM. then you will need to apply the CSC depending on what network your country has. like mine i choose either from SMA/GLB/XTE. just dial #272* IMEI code. I hope this will help.:good:

Network problem

Sorry for my english
I have a problem.
I was on this rom
http://forum.xda-developers.com/showthread.php?t=2044797
after all i flashed this one
http://forum.xda-developers.com/showthread.php?t=2192807
but i didnt like it and i came back to negan rom.
(Yes, I did full wipe)
Now i habe problem with 2g and 3G internet.
Google play and browser detect no internet, but i can log into my google account.
My chat (Gadu-Gadu) works fine...
I tryed to go back to stock rom, and root, instal 2ndboot, and flash one more time negan Rom.
Problem is still there.
what i can do?
Checked baseband to match your region already?
Was it working before? Doesn't seem like a baseband issue.
Sent from my MB526 using xda premium
3G do not work
i've a similar problem with the last nightly:
Every think working fine except the 3G reception only.
I've try to change the base hand configurations but the problem still there.
Wi-fi working fine
Sms OK
Gsm seems OK
Just the 3G
Any suggestion?
Tnks
(i have a Brazilian network "vivo")
base band selection
kindly suggest base band selection for mb 526 ....having network problem with my moto defy plus after installation of cm 10

[Q] - i9507: No service on KitKat - Can receive calls, can't dial (no service)

Hi Guys,
I'm from Australia and recently bought an Optus Galaxy S4 4G. Strangely, the model number is i9507. I double-checked this online and usually weird model numbers are just carrier-spin-offs. So I went ahead to root and flash just like you would with an International i9505.
So far no problems - 4.3.x PA rom works absolutely fine.
BUT:
I've tried some Kit Kat roms recently and they all flash fine but give me 'mobile network not available'. Strangely though, I can receive calls/text and talk on the phone, but when I try to dial or send text messages, I can't do it. My reception bar is completely empty as well.
WiFi is totally fine, just no data and mobile network
I've tried messing with the 'network operators' setting and if i select my carrier (I have a Vodafone sim) I'll get network reception until I turn off the screen and then my mobile network becomes unavailable again
Not sure what the problem is; modem? APN? or roms not suitable for my phone?
Current info:
ROM - [ROM] KOT49H【4.4.2】 GOOGLE EDITION 4.4.2 by Danvdh, Kryten2k35 & Ktoonsez
Baseband - i9507XXUAMH2
Kernel - [email protected]oonsez-VirtualBox #1
I've been flashing for a while now but it's usually just basic stuff so you can probably tell I'm pretty amateur lol.
Any help is greatly appreciated!
Thanks =)
Richard
richard_huang70 said:
they all flash fine but give me 'mobile network not available'. Strangely though, I can receive calls/text and talk on the phone, but when I try to dial or send text messages, I can't do it. My reception bar is completely empty as well.
WiFi is totally fine, just no data and mobile network
...
Current info:
ROM - [ROM] KOT49H【4.4.2】 GOOGLE EDITION 4.4.2 by Danvdh, Kryten2k35 & Ktoonsez
Baseband - i9507XXUAMH2
Kernel - [email protected]oonsez-VirtualBox #1
Click to expand...
Click to collapse
Hi Rich
As your baseband is quite out of sync with the firmware you are trying to run (MH2 is from 4.2.2 ,,, right?) I would suggest you change your baseband (modem) flashing an equivalent to the ROM firmware from here.
I've got yesterday the exactly same behaviour when finally and reluctantly I've added a data plan. I was running a successful low-baseband + high-firmware because was setted to "GSM Only" (try it ... will work flawless). When I've switched to LTE got what you've described in the face too . I've promptly updated my baseband and now all is fine :angel:
EDIT: please do nothing of the above described BEFORE taking a EFS backup with every tool you can find and preserving them in several highly fortified locations and 2 or 3 K7 Tapes too . Have an ODIN flashable copy of your MH2 baseband is advisable too.
Hope I've helped and please share your experience.
Nice regards.
.
Hey thanks for the reply! Helps heaps =)
While I still had those roms installed I did try flash a few modems within Odin, all failed though =S
Which one should I be flashing?
I believe I tried XXUFNA1 but the flash just doesn't go through
Does it make a difference which rom I flash the new modem from? I.e. flash when the new modem now or flash the new modem on the kitkat rom?
I'm currently using Pacman 4.3.1 since it's perfectly fine. Just can't wait to get on a KitKat rom though! haha
richard_huang70 said:
Hey thanks for the reply! Helps heaps =)
While I still had those roms installed I did try flash a few modems within Odin, all failed though =S
Which one should I be flashing?
I believe I tried XXUFNA1 but the flash just doesn't go through
Does it make a difference which rom I flash the new modem from? I.e. flash when the new modem now or flash the new modem on the kitkat rom?
I'm currently using Pacman 4.3.1 since it's perfectly fine. Just can't wait to get on a KitKat rom though! haha
Click to expand...
Click to collapse
Hi Rich
Sorry, may be my fault, but quite didn't got your
You may proceed having the below as a rule of thumb:
Your baseband (modem) version should always match your ROM (firmware) version.
Failure to flash something is never good signal. As you have an i9507 (I own the 5) is very advisable to flash a modem built for your S4 flavour.
The above rule should apply to it too so, if the only modem available for the i9507 is the MH2 your firmware have to match or these issues reported will return.
Did you tested the "GSM Only" option to corroborate (or not) my hyphothesis? With this config, you should perceive no signal drops when waked. I know it isn't a viable operational mode but ... just for fun
Nice regards and keep sharing :laugh:
.

[Q] I9505. No signal when using 3G/4G. 2G works

Hi.
After updating Danvh's lolipop-rom to the latest version, I lost my signal and wifi. When I force my phone to use 2G (GSM only) in network-settings, everyting works normal.
But of cource I want the speed of 3G and 4G when using internet!
Sometimes (not often) 3G works.
Sometimes the phone says it has signal, but calls, internett etc don't work
I tried to flash the latest modem (XXUHOC6), but no luck. Have also tried modem XXUGNK4, XXUHOB8 and XXUHOB7. I tried to go back to the older version of the custom rom, but no luck
I have now downloaded the latest official stock rom from sammobile. But same problem with stock rom.
Any suggestions?
I have IMEI
Sorry, I have the same problem and I am still searching for a solution. And I have been trying everything as you and no solution. Sometimes I think is a hardware issue.
Very frustrating :S
Hope to find a solution soon.
I dont want to buy a new phone yet. There is no other phones out there that I want

Mobile Data Won't Work.. Have Tried Everything

Hi, so I have a Canadian Samsung Galaxy S4 SGH-I337M.
I recently flashed Synergy's Cyanogenmod 13 that would allow me to run marshmallow as they have discontinued for my model on the official Cyanogenmod site. After I flashed Gapps Pico and everything was working fine until I tried to use mobile data...
I tried everything I could find i.e Airplane mode, DNS Changer, VPN and most notably changing APN's. As for when I changed APN's I am with mobilicity so I just changed the APN to wap.davewireless.com as instructed on their site but didn't work. I thought it was because "Synergy's CM13" might be "sketchy" so I also flashed CM11 made for my model off cyanogen's official site as well as Resurrection Remix still didn't fix the problem. Is there anything I can do to access my mobile data.
BTW: I can receive calls, texts, voicemails literally everything but my data. I can also receive texts from mobilicty about billing if that means anything.
Plz Help and Thanks
The phone is running the latest bootloader and modem? Data works on a stock ROM?
audit13 said:
The phone is running the latest bootloader and modem? Data works on a stock ROM?
Click to expand...
Click to collapse
thanks but its fine lol I fixed it self but yea the data works on stock

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