How to restore cellular service - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

I've recently installed Lollipop GPE 5.0.1 and noticed that I no longer had cellular service. I then reinstalled stock 4.4.2 (NG2). I still don't have cellular service. When I go to Settings/Connections/More Networks/Mobile Networks, the Network Operator option is greyed out. Also, the cellular icon has a red X over it. Any ideas how to update the cellular service? By the way, my SIM is for RingPlus (a Sprint MVNO) which has worked fine on this phone prior to my installing Lollipop GPE. Any hints would be much appreciated

Update PRL and Profile in Settings/System Updates. If that doesn't work, dial ##72786# in the dialer. This did a network reset.
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No Dialer
bilgerryan said:
Update PRL and Profile in Settings/System Updates. If that doesn't work, dial ##72786# in the dialer. This did a network reset.
Click to expand...
Click to collapse
Having the same issue. So the only way to get an update prl is through a touch wiz rom right? I tried Sacs and its stuck on trying to connect. then went to dialer and there is none. So i tired a different rom with dialer and it says i have no mobile service. Anything else I can do?

tetrach21 said:
Having the same issue. So the only way to get an update prl is through a touch wiz rom right? I tried Sacs and its stuck on trying to connect. then went to dialer and there is none. So i tired a different rom with dialer and it says i have no mobile service. Anything else I can do?
Click to expand...
Click to collapse
Odin the stock ROM

bilgerryan said:
Odin the stock ROM
Click to expand...
Click to collapse
Will that give me knox? I am trying to avoid that if possible. Also do you have a link to a stock rom.

tetrach21 said:
Will that give me knox? I am trying to avoid that if possible. Also do you have a link to a stock rom.
Click to expand...
Click to collapse
Android Development... All ROMs are there. Why are you trying to avoid Knox? It won't prevent you from doing anything.

Sounds like your baseband is not compatible with your ROM/bootloader..

Related

[Q] Activate LTE on LG G2!

Hello XDA Members!
I would like to activate my LTE on my G2 (D802 Int.) by using this code 3845#*802#! but after the hidden menu appear when I click on error message appear "This application does not work on this device".
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Is this problem related to Android 5 framework ?
I am in Android L framework official release.
Thanks in advance.
Fadouchi said:
Hello XDA Members!
I would like to activate my LTE on my G2 (D802 Int.) by using this code 3845#*802#! but after the hidden menu appear when I click on error message appear "This application does not work on this device".
Is this problem related to Android 5 framework ?
I am in Android L framework official release.
Thanks in advance.
Click to expand...
Click to collapse
If you have root, Delete LteConfigs.apk in system\app (D802/5/6 only) then reboot.
Make a backup just in case.
Maybe possible if you just disable it too in Settings, App manager (if possible?)
Source CloudyFlex FAQ
@IrfanCore Thank you for your help! it is really working now! This the power of co-working.
I've deleted the LteConfigs.apk, but still dont have the LTE option
jovus said:
I've deleted the LteConfigs.apk, but still dont have the LTE option
Click to expand...
Click to collapse
Google "activate lte lg g2"
http://forum.xda-developers.com/showthread.php?t=2494803
IrfanCore said:
Google "activate lte lg g2"
http://forum.xda-developers.com/showthread.php?t=2494803
Click to expand...
Click to collapse
yeah I did that, but that does not stick after the reboot. I have to do it every time
jovus said:
yeah I did that, but that does not stick after the reboot. I have to do it every time
Click to expand...
Click to collapse
Then I think you need to check your APN settings.
Check with your operator.
If that doesn't work, look up lg g2 service mode.
I just remembered I had to set to LTE in service mode while I was on LG stock.
Is it possible to do it on custom ROM? I'm using Candy5 ROM, but can't get LTE to work. Any advice?

Questions About Basebands, Mobile Networks and Unlocked Devices

I have a few concerns to address. I recently bought the Galaxy i9505 (or in my case, the Sprint SPH-L720T version). The device comes unlocked with stock firmware/software, Lollipop 5.0.1 baseband OH2.
Now I will try to make this as clear as possible. We don't have the Sprint network here, I'm on Vodafone. I just flashed an official ROM from Sammobile with a different baseband version (this one) because I can't find the version that my phone came pre-installed with. I upgraded to address the StageFright and widgets app draw issue that was on the stock ROM.
Now my question is: by flashing a different baseband version, will I lose the ability to have an unlocked device and incur roaming charges on my network, or is the unlocked to work on multiple networks feature on a firmware level so I don't have to worry about it?
Thanks.
Grumpy Cat said:
I have a few concerns to address. I recently bought the Galaxy i9505 (or in my case, the Sprint SPH-L720T version). The device comes unlocked with stock firmware/software, Lollipop 5.0.1 baseband OH2.
Now I will try to make this as clear as possible. We don't have the Sprint network here, I'm on Vodafone. I just flashed an official ROM from Sammobile with a different baseband version (this one) because I can't find the version that my phone came pre-installed with. I upgraded to address the StageFright and widgets app draw issue that was on the stock ROM.
Now my question is: by flashing a different baseband version, will I lose the ability to have an unlocked device and incur roaming charges on my network, or is the unlocked to work on multiple networks feature on a firmware level so I don't have to worry about it?
Thanks.
Click to expand...
Click to collapse
You will lose your domestic/international unlock of you upgrade the Baseband unless it was actually unlocked by Sprint.
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bilgerryan said:
You will lose your domestic/international unlock of you upgrade the Baseband unless it was actually unlocked by Sprint.
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Click to collapse
Yeah, I kinda figured that would be the case. Good thing I made a backup.
I suppose you wouldn't know where I can get a StageFright Patch for the OH2 version by any chance?

Sprint s4 sph l720 Octos CM13 6.0.1 help.

So I have a sprint s4 onrunning octos (cm13 build) on 6.0.1. I have the OK3 already, as I came from 5.0.1 already using OK3. My question is, what modems can I flash BACK to? Better yet what firmware can I downgrade / flash ? I am having the worst time trying to get my network settings to work. The APN settings are COMPLETELY GONE. There is no way for me to edit them. And the best I'm getting of service is 2 bars of 3G MAX, when I usually get almost full bars of 4G here at my house. I struggled to even get 3g working. Can anyone help me out?
Sph l720 sprint running Octos CM13 6.0.1. MY PHONE IS ON STRAIGHT TALK. I REPEAT MY PHONE IS ON STRAIGHT TALK. THE SERVICE PROVIDER IS NO LONGER SPRINT IT IS STRAIGHT TALK.
But for some reason, when I was having the phone activated I was having trouble getting the sim to work. But they told me that was because it did not take a sim card with straight talk. Also they never told me to use the provided network access code. The phone was literally sitting there for 3 hours NOT ACTIVATED. Because they said it was in progress. I asked if it was taking so long because of the sim card not being inserted. They told me no. But for some reason as soon as I put in the sim card BAM IT WAS ACTIVATED. could anyone please help me out in some way
something similar happen to me in the signal bar on my device there is an R and cant make calls i have a od2 firmware
eriuzz said:
something similar happen to me in the signal bar on my device there is an R and cant make calls i have a od2 firmware
Click to expand...
Click to collapse
R usually stands for roaming
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bilgerryan said:
R usually stands for roaming
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hey do you have any advice ? i would greatly appreciate it

SPH-L720 S4 on Boost Mobile

Hello,
I have a S4 L720 that's running the OH1 modem on CM12 by JDC Team, I put a Boost Mobile Sim Card in to see if I could get service.
After flashing the Boost Mobile fix (Link Below), I get LTE speeds and data works fine, but I can't make or receive calls or texts.
Is it that Boost Mobile Sim's aren't compatible with the S4?
http://forum.xda-developers.com/galaxy-s4-sprint/general/info-galaxy-s4-jfltespr-sprint-boost-t3299394
sonic0504 said:
Hello,
I have a S4 L720 that's running the OH1 modem on CM12 by JDC Team, I put a Boost Mobile Sim Card in to see if I could get service.
After flashing the Boost Mobile fix (Link Below), I get LTE speeds and data works fine, but I can't make or receive calls or texts.
Is it that Boost Mobile Sim's aren't compatible with the S4?
http://forum.xda-developers.com/gal...info-galaxy-s4-jfltespr-sprint-boost-t3299394
Click to expand...
Click to collapse
You have to go back to a Touchwiz ROM to activate the SIM. Make a backup, flash a Touchwiz ROM, activate SIM, restore backup.
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How do I activate the Sim?
sonic0504 said:
How do I activate the Sim?
Click to expand...
Click to collapse
Once you're on a TW ROM I think all you need to do is Update your Profile and that should activate the SIM. Try making a call and you'll know.
If that doesn't work, dial ##72786# in the phone app and that will reset the network and start the self activation process.
I went back to stock but I don't see the option to update the profile, all I see is System Updates.
sonic0504 said:
I went back to stock but I don't see the option to update the profile, all I see is System Updates.
Click to expand...
Click to collapse
Yes it's under that option, you should also update PRL while you're at it.
When I tap it all I see is this.
sonic0504 said:
When I tap it all I see is this.
Click to expand...
Click to collapse
What ROM did you flash? If it's a 5.1.1 Touchwiz ROM they are all ports from different devices and won't have that option, you need a stock Touchwiz ROM or one built from this devices stock ROM, like my ROM, Wicked X.
I flashed the OH1 rom via Odin, I'll flashing OD2 next.
Edit: It worked, I have the options back, but it says connection error (6).
sonic0504 said:
I flashed the OH1 rom via Odin, I'll flashing OD2 next.
Edit: It worked, I have the options back, but it says connection error (6).
Click to expand...
Click to collapse
Dial ##72786# in the phone app
Now it goes to hands free activation and doesn't go past that. (I can still use the phone.)
sonic0504 said:
Now it goes to hands free activation and doesn't go past that. (I can still use the phone.)
Click to expand...
Click to collapse
Do you have an active account with the SIM card that is on your phone? If not, then all of this was pointless.
Yes, I'm using it in another phone for now until I get it working on my S4.

wifi not working after upgrading to Android 7

hello
I have s7 edge g935F and I have updated it to android 7 and wifi cannot detect any wireless network.
please help
Reset ur connections should be fine after that...
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Sent from my SM-G935F using XDA-Developers Legacy app
I have tried that didnt work, and I have done factory rest didnt work too
morve1 said:
I have tried that didnt work, and I have done factory rest didnt work too
Click to expand...
Click to collapse
did you flash BTU bootloader and modem?
I updated the device throw wireless. I didn't use odin
I have the same problem , I hope someone can help us.
Gho0ost said:
I have the same problem , I hope someone can help us.
Click to expand...
Click to collapse
I think there is a second update for android 7 "they might have fixed the problem", Have you tried it?
I have same problem here after upgrading to android 7. can't find wifi networks.
I tried all the following and didn't work:
restarting device
factory reset
tried flashing another stock rom from another region usin odin
also flashed the modem that came with the rom
please if anyone managed to solve this
Ramezov said:
I have same problem here after upgrading to android 7. can't find wifi networks.
I tried all the following and didn't work:
restarting device
factory reset
tried flashing another stock rom from another region usin odin
also flashed the modem that came with the rom
please if anyone managed to solve this
Click to expand...
Click to collapse
I did solve this, as I said I downloaded a stock version of android 6 and device work as usual, you can download it from sammobile.com. GoodLuck
I can log into wifi networks and use the browser's but apps don't work through WiFi.

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