[Q] Galaxy S4 I9505 LTE - Unstable Mobile Network - Galaxy S 4 Q&A, Help & Troubleshooting

Hi there,
I've been looking around this forum for more informations but was not able to find the exact answer, so here i am.
I'am using Galaxy S4 I9505 LTE ROOT, Honk Kong release:
Kitkat 4.4.2
PDA: I9505ZHUFNB3
CSC: I9505ZZHFNB3
MODEM: I9505ZHUFNB3
IMEI: FINE
My issue is unstable mobile network.
Sometimes working well, then unable to find any network for a day or fast reconnect using the connexion pannel.
I've been looking for threads about modem issues and i've found plenty of version but no one for this model in china (it's not sell in china) , it seems that i have the latest one for HongKong.
Is it possible to install another modem on my phone and do you have any idea which one is better for China mobile network and will also be able to work In the rest of the world.
I also need this version not to break my wifi or my sound cause i heard it might be possible with some realease.
Ressources i've been reading:
[REF]GALAXY S4 (I9500/I9505) GSM / NON-HLOS - MODEM'S Collection (Odin/CWM/TWRP)
GALAXY S4 (I9500/I9505) GSM / NON-HLOS - MODEM'S Collection Odin/CWM/TWRP)Post 2549(
Big thanks to those contributors,
Thanks for your help.
Ankhaz

Anyone, any idea ?
Should i try to flash other modem GSM / non hlos and just see what's happen ?

Any one having any idea?
My phone was working like normal for 2 week and the no network found came back yesterday.
It found nothing with mobile network search, same for automatic register on the mobile network ...
Iit's very boring cause i'am actually looking for a job, mean nobody can contact me by phone ...
I've been looking around the internet for days and still dont find any solution.
Please someone help!

Related

[Q] S4 lte advance E330S

Hi everyone,
I been search over a month how to fix the problem i am having.
I bought the galaxy s4 lte-advance from Korea, i am thinking in rooting it but my problem is bigger then that.
Here is the PROBLEM:
I have t-mobile service and I do not receive 4g lte, the area i am at does have 4g LTE.
Setting of the phone,
Device Model number: : E330S
Adroid version 4.3
Based version E330SKSUBMJ6
When I go Mobile networks > data network mode> i only have 2 oppition 1st LTE 2nd 3G
No mater what i receive 4g lte, all i am receiving is 3g.
I would like to know how can I make m phone receive 4g?
I been over 100s of post in this forum couldnt find a related posted.
Same issue
Hi Filter I've had the e330s in the UK on EE since October and 4G/LTE started off working fine but since Android 4.3 I no longer have 4g. The options are there and everything looks great but never switches to 4G.
Looking at your firmware you are a bit behind though as I am too by the looks of it. I'd suggest trying the latest firmware via Odin and possibly Kies if it let's you (might need to try v2 or whatever its called). Firmware links below
Roll on 4.4!
e330s firmware
samsung-updates. com/device/?id=SHV-E330S[/url]
I9506 (e330s equivalent) firmware
samsung-updates. com/device/?id=GT-I9506&details=Galaxy_S4__LTE-A_and_S800[/url]
Rilter said:
Hi everyone,
I been search over a month how to fix the problem i am having.
I bought the galaxy s4 lte-advance from Korea, i am thinking in rooting it but my problem is bigger then that.
Here is the PROBLEM:
I have t-mobile service and I do not receive 4g lte, the area i am at does have 4g LTE.
Setting of the phone,
Device Model number: : E330S
Adroid version 4.3
Based version E330SKSUBMJ6
When I go Mobile networks > data network mode> i only have 2 oppition 1st LTE 2nd 3G
No mater what i receive 4g lte, all i am receiving is 3g.
I would like to know how can I make m phone receive 4g?
I been over 100s of post in this forum couldnt find a related posted.
Click to expand...
Click to collapse

[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:
.

SM-N900 Modem/ CSC Country question

I had purchased an unlocked sm-n900 because I figured it might be what would work best with my carrier ( Straight Talk) here in the US. Ive had it for a little less than a month now and have had constant connection issues. Today I saw a thread http://forum.xda-developers.com/showthread.php?t=2475714 In here it is mentioned that
Choosing right modem can make a huge difference as it affects reception, data speed, stability, battery life etc.
Click to expand...
Click to collapse
So I figured I should investigate flashing a new modem and maybe thatll help my situation. The thing is while looking at my phones info I found out the CSC country is Argentina. Does this matter at all? Is this leading to the problems with my phone or is this from the ROM i flashed (CriskeloRom Note III V05) Im just fed up with the constant connection problems and the constant having my phone go into emergency only mode. Where do I go from here? Do I need to flash a different modem, or an entirely different rom? I dont even know if I can flash any of those modems /: Heres some more info I have Latest firmware info
PDA: N900UBUCMK1
CSC: N900UUBCMK1
MODEM: N900UBUCMK1
Can anyone please help

[Q] No signal

Hi all,
First of all, I have a Samsung galaxy s4 from Canada specifically from Rogers. I have got it hardware unlocked, rooted and I am on Cyanogenmod 11.
Now to my problem, I am in the Philippines and I would frequently lose signal, if I'm lucky, it would re-aquire the signal but most of the time, my work around is to turn airplane mode on and off and it would connect back to the carrier for maybe a minute and fully lose signal again.
Any help or suggestions would really be appreciated as it is such a pain to airplane mode and off when I'm jamming to my BT speaker
Here's information about my phone:
Model: sgh-1337m
Cyanogenmod version: 11-20150309-nightly-jflte
Android version: 4.4.4
Baseband version : 1337mvluamdj
If i could help you guys, help me with my problem just let me know.
Thanks all for reading.
Signal issues are mostly connected to the modem,
Flash the right modem for your phone/carrier and see if it help
GDReaper said:
Signal issues are mostly connected to the modem,
Flash the right modem for your phone/carrier and see if it help
Click to expand...
Click to collapse
Hey, thanks for the reply!
I'm a little new to this, could you go in depth on how to do so. Or maybe direct me to a few links I could follow? I am not in Canada and this is my only phone, so I don't want a chance to brick it.
Thanks!
Edit: do I need a computer to reflash the modem because that is something I don't have at the moment.
Here is a modem list. It also has a guide on how to flash.
There was another thread that included the latest lollipop modems , but I can't find it anymore.
You will need Odin which means that you require a PC.
Go to sammobile.com and check what version you need for your carrier and country

GT I9505 is not able to connect to data networks (3G/4G)

Hello! First of all I 'd like to thank you for trying to help me. Sorry for my English!! I decided to post here after reading a lot of topics , but I havent found a soluTion .
My girlfriend has a Samsung GT i9505 (S4). For a long time, she noticed that the phone didn't work properly so she decided to brought it to the technical service. When she arrived to home, the phone was not able to connect to WIFI or data networks . No 3G/HSDPA icons on the screen bar. The phone is connected to GSM network but without data.
I have discovered that in the network selection menu, there are several options: " GSM, GSM+WCDMA, GSM+WCDMA+LTE".... but in Spain we dont have WCDMA...WTF! , so I decided to flash I9505XXUHOE3_I9505PHEHOE1_PHE_ (4 + Pit Files)" using ODIN.
Now the phone is able to connect without problems to WIFI networks and the network selection menus shows : GSM, GSM + 3G , GSM + 3G+LTE !!! But it continues without data connection (only GSM)
The APN config is fine
Any ideas?
Thanks a lot!!
Information about the current status:
Model: GT-I9505, jflte
Made in Vietnam
Knox Count: 0X1
CC: PHE
Product code: I9505XXXPHE
bootloader: xxuhoe3
pda: xxuhoe3
csc: phehoe1
bb: xxuhoe3
Firmware: xxuhoj2 / yxxhoj1 / xxuhoj2
kernel: 3.4.0-4760392
Compilation: LRX22C.I9505XXUHOE3
5.01 ANDROID

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