No mobile networks detected - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Today for no reason at all i became unable to make phone calls or text messages. The error message was stating no mobile networks detected, however i'm showing i'm connected to LTE with nearly full signal. When i roam phone calls and text messages work.
I'm rooted, MF9. I was fine yesterday, and no changes have been made.
i'm using philz recovery. I have wiped the phone "prep for new rom" and flashed a fresh stock odex rom and there wasn't any change.
LTE data is working but phone calls and text just won't work.
Edit- Also just to note i have 4 other guys in my office with Sprint Galaxy S4's and none of them are having issues.

mak0blu said:
Today for no reason at all i became unable to make phone calls or text messages. The error message was stating no mobile networks detected, however i'm showing i'm connected to LTE with nearly full signal. When i roam phone calls and text messages work.
I'm rooted, MF9. I was fine yesterday, and no changes have been made.
i'm using philz recovery. I have wiped the phone "prep for new rom" and flashed a fresh stock odex rom and there wasn't any change.
LTE data is working but phone calls and text just won't work.
Edit- Also just to note i have 4 other guys in my office with Sprint Galaxy S4's and none of them are having issues.
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Click to collapse
I am having the same exact issue. Airplane mode toggle fixes it but unless you are trying to make calls or send texts you are unaware of the issue, which poses a problem with receiving calls and texts.
Notification bar shows full service and data, and the data continues to work, but the mobile network is "unavailable" for texts and calls.
I've tried reflashing the firmware (on MK2), updating the PRL and profile as well as reactivating the phone. What else is there to try?
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Call tech support

Try this
mak0blu said:
Today for no reason at all i became unable to make phone calls or text messages. The error message was stating no mobile networks detected, however i'm showing i'm connected to LTE with nearly full signal. When i roam phone calls and text messages work.
I'm rooted, MF9. I was fine yesterday, and no changes have been made.
i'm using philz recovery. I have wiped the phone "prep for new rom" and flashed a fresh stock odex rom and there wasn't any change.
LTE data is working but phone calls and text just won't work.
Edit- Also just to note i have 4 other guys in my office with Sprint Galaxy S4's and none of them are having issues.
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Click to collapse
You probally need to upgrade your modem. I had this issue before and when i upgraded to mk2 it fixed everything hope that helps

Related

[Q] Weird Mobile Data problem

So I flashed a rom(samy deluxe) and suddenly i see I can't use mobile internet. I have good signal but still I couldn't use internet. So i did a full wipe and went back to stock rom. Now I still have the same problem. I notice my messaging and calling doesn't also work properly. I can send messages and recieve messages . I can call I can recieve call but sometimes it doesn't . Like someone sent me a message at 10 pm but I recieved it at 3 AM so I was confused. But Mobile Data never never works. I tried flashing a new modem. I tried setting the APN but it just doesnt work. I see the mobile data letter(H+or E) but it just doens't work and I really don't know why.
Mmm...
FeleK- said:
So I flashed a rom(samy deluxe) and suddenly i see I can't use mobile internet. I have good signal but still I couldn't use internet. So i did a full wipe and went back to stock rom. Now I still have the same problem. I notice my messaging and calling doesn't also work properly. I can send messages and recieve messages . I can call I can recieve call but sometimes it doesn't . Like someone sent me a message at 10 pm but I recieved it at 3 AM so I was confused. But Mobile Data never never works. I tried flashing a new modem. I tried setting the APN but it just doesnt work. I see the mobile data letter(H+or E) but it just doens't work and I really don't know why.
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Click to collapse
change the rom, luck:good:

No Cellular Connection error after flasing cm-12.1-20150918-NIGHTLY-hlte

So after not really being into the custom rom game for awhile i decided last night to flash the following to my Sprint Note 3.
ROM: cm-12.1-20150918-NIGHTLY-hlte
GAPPS: open_gapps-arm-5.1-stock-20150918
when I left my house this morning I called my wife and it worked fine. Since then, however, any time I attempt to place a call I get a "No Cellular Connection" error. Data seems to work fine. In phone status it says it's connected to Sprint. It has an IP address. But the SIM status is Out of Service or something similar.
Any clue on WTF the issue could be? It would be awesome if I could place phone calls again.
Thanks!
Phil Blunts said:
So after not really being into the custom rom game for awhile i decided last night to flash the following to my Sprint Note 3.
ROM: cm-12.1-20150918-NIGHTLY-hlte
GAPPS: open_gapps-arm-5.1-stock-20150918
when I left my house this morning I called my wife and it worked fine. Since then, however, any time I attempt to place a call I get a "No Cellular Connection" error. Data seems to work fine. In phone status it says it's connected to Sprint. It has an IP address. But the SIM status is Out of Service or something similar.
Any clue on WTF the issue could be? It would be awesome if I could place phone calls again.
Thanks!
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Click to collapse
Did you check APN settings or putting thebphone into airplane more on and off.
Sent from my SM-N900T using XDA Free mobile app
monkeypaws said:
Did you check APN settings or putting thebphone into airplane more on and off.
Sent from my SM-N900T using XDA Free mobile app
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I'm still fairly new to Sprint but IIRC Sprint doesn't have APN settings....
Is the phone running the latest bootloader and modem/baseband?
Old thread, but I'm having the same problem.
I just flashed CM 14.1 to my Note 3 (to freshen things up after all this time!) and now I have no cell service. I have successfully re-flashed the modem.bin to the phone from the stock ROM, but it did not fix the problem. Phone says Emergency calls only... and I have been getting emergency weather notifications, but I cannot place or receive a call.
Some help, please?

!!Help!!SMS/MMS will only send ON Wifi!!

Hello all,
I have a Samsung Galaxy S5 that I originally got from South Korea unlocked and have been using it in the U.S. for about 1 year now on Metro PCS. I just updated it to Marshmallow 6.0.1 and now it will not send SMS or MMS on network. What makes things really odd is that it will ONLY send the messages when I have the WiFi "ON" and connected.I know there has been issues with other users phones and it not sending/receiving with the WiFi on, but my case is the complete opposite of that. I can receive messages just fine on network and do everything else like call, surf the web, etc. When it comes to sending an SMS/MMS 'ON" network it will give me a fail message every time.
I have tried everything it feels like, I have cleared the cache and data on the messages app multiple times. I have tried sending messages in safe mode, tired airplane mode on/off trick, restarted it in recovery mode and wiped cache partition, rebooted it without a sim card, even tried using different sms messaging apps. Basically everything and NOTHING worked, I even took it to a Metro PCS store and had the network settings confirmed and they did some light troubleshooting of their own.
I just don't understand how the ONLY way I can send a text is if I have WiFi "ON" and connected. The finally step I have to try is to do a factory reset but I am trying to avoid that till the end. I wanted to share my story and ask for some help or suggestions on what else I can try that I have not done. Thanks I hope to hear from some of you

Phone taking forever to send txts

Is anyone else having issues with their phone sending txt messages. Mainly on AT&T. I send a txt and sometimes (probably about 40% of the time) it takes 30sec-3min to send a txt.
I thought it was my rom (PN6) since I dirty flashed from the first PN6 to the last. So I just recently clean flashed PN7 to see if that solved the problem but im still having the issue.
Anyone else having this issue? And/or do you recommend anything?
Anyone?
Ive tried clearing the app data.
Ive tried clearing the device cache via the storage setting in settings
Ive tried clearing the cache in TWRP
Ive tried toggling the permissions for messenger
Ive tried Hangouts to see if it was app specific.
I got a new SIM card from AT&T
The only thing i havent tried is putting my SIM card in a different phone (because i dont have a spare phone) to see if its phone related or server related.
I'd advise to flash to stock factory images and see if it still happens. If not, it's an issue with Pure Nexus and you can try to get support in the official thread. If it still happens, I'd probably talk to AT&T tech support. They might be working on some towers or something. I don't personally have the issue on Project Fi, but I also don't use Pure Nexus.
Texts are normally sent over 1x I believe. I remember reading that AT&T is shutting down their 2g network by the end of the year. They might have shut it down already in your area. Maybe the texts are timing out and then being routed over 3g/4g?
Type *#*#4636#*#* into the dialer>phone information>turn on sms over ims>reboot. Worth a try
hawkswind1 said:
Texts are normally sent over 1x I believe. I remember reading that AT&T is shutting down their 2g network by the end of the year. They might have shut it down already in your area. Maybe the texts are timing out and then being routed over 3g/4g?
Type *#*#4636#*#* into the dialer>phone information>turn on sms over ims>reboot. Worth a try
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I went into that menu but i didnt see a "turn on SMS over IMS"
That menu looks way different then when it did with 6.0.1 when we used to have to toggle LTE and GSM to get LTE to connect.
Update
I noticed that if i send a txt and its stuck on "sending" if i go tin to the *#*#4636*#*# menu and toggle "Cellular Radio Power" off then on the "stuck" txt send right away.

(Verizon VS995) can't get 4G data and Text/Calling to work in the same network mode.

I've tried searching on this and couldn't really find any answers. So I have a rooted VS995 (Verizon) and I have to change my network mode in order to get 4G data, but can not receive calls or texts.
[Settings > Mobile networks > System Select > Network Mode]
Here are the results I get.
Global - I get 3G data and I can call and text
LTE/CDMA - I get 3G data and I can call and text
LTE/GSM/UMTS - I get 4G LTE data, but can NOT send or receive calls and texts. Incoming calls go straight to voicemail, calls out fail with a no network detected and texts just say failed to send.
I should add that this all started a few weeks ago when I was flashing a few different roms one day to see which one I liked. My phone worked normally before I flashed a rom (can't remember which one) and now it doesn't matter which rom I flash, I still get this issue. I've been dealing with this for weeks and it's gotten really annoying.
I am DirtySanta Rooted, I have tried installing several different kernels and several different roms with no success. Is there something I am missing? Is there a Radio file or something that I need to flash?
I am even contemplating unrooting, going back to stock and then attempting to re-root, but I fear that I might have to flash a newer OEM that will disable the root method.
Any help would be greatly appreciated.
EDIT: It's late, I'm frustrated and I just realized that this thread is probably supposed to be in Questions and Answers section. If a moderator could move it, that would be great.
Zerotwistknife7 said:
I've tried searching on this and couldn't really find any answers. So I have a rooted VS995 (Verizon) and I have to change my network mode in order to get 4G data, but can not receive calls or texts.
[Settings > Mobile networks > System Select > Network Mode]
Here are the results I get.
Global - I get 3G data and I can call and text
LTE/CDMA - I get 3G data and I can call and text
LTE/GSM/UMTS - I get 4G LTE data, but can NOT send or receive calls and texts. Incoming calls go straight to voicemail, calls out fail with a no network detected and texts just say failed to send.
I should add that this all started a few weeks ago when I was flashing a few different roms one day to see which one I liked. My phone worked normally before I flashed a rom (can't remember which one) and now it doesn't matter which rom I flash, I still get this issue. I've been dealing with this for weeks and it's gotten really annoying.
I am DirtySanta Rooted, I have tried installing several different kernels and several different roms with no success. Is there something I am missing? Is there a Radio file or something that I need to flash?
I am even contemplating unrooting, going back to stock and then attempting to re-root, but I fear that I might have to flash a newer OEM that will disable the root method.
Any help would be greatly appreciated.
EDIT: It's late, I'm frustrated and I just realized that this thread is probably supposed to be in Questions and Answers section. If a moderator could move it, that would be great.
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Were you able to correct this?
rcicu said:
Were you able to correct this?
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Sorry for the late response, I was away this weekend.
I ended up flashing just about every rom and kernel I could find and now somehow it seems that it is now working as intended.
Lucky. I still have the same problem, been flashing since I got this phone and not a single one can I get it to stick with service after boot.

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