Database Users

[Q] No service sometimes .

I sometimes lose service and it only comes back if I cycle airplane mode or reboot phone. This happens in places were I have great signal . even when the phone shows no service I can still make calls but can't text and if people call me goes to voice mail. This happens on every build, radio, and rom I have tried. I don't see this as a known isue in the forums . Any help would be great . Also thank you to all whom contribuit to these android builds awsome work!

Resurrection!
It's beautiful to revive some old dead threads!
I have here the same problem with my NAND build!
Can anybody help on this?!?
10x

yes I have the same problem, this can be resolved by setting the mobile data network to 2G only.
The Android build has this problem on some providers when trying to use 3G data mode.
Here in Belgium, this problem is there with Mobile Vikings (Base)

thomas_pieps said:
yes I have the same problem, this can be resolved by setting the mobile data network to 2G only.
The Android build has this problem on some providers when trying to use 3G data mode.
Here in Belgium, this problem is there with Mobile Vikings (Base)
Click to expand...
Click to collapse
Thanks bro but unfortunately i'm 2G already!
I had this issue in the past! I don't know what made it go and now what made it come again!

Any third party apps that can cause the problem?

I have had this problem for a while. It will just randomly loose connection, you cycle airplane mode and then your service is back. Its almost like the phone isn't looking for a new cell tower after it loose connection and cycling airplane mode causes it to search again...
Extremely frustrating problem as it happens often and has been for a while (on many different builds and radios)
If anyone knows a fix or something, you would be my hero haha

And, what about the problem?
I've the same problem, but my network comes and goes..
one time i have reception, and suddenly its gone. autmaticly it comes again and on and on.
I'm a match ringer, i know

Nobody has this Problem too?
Sent from my HTC Sensation XL with Beats Audio X315e using xda app-developers app

Sms not received and sent anymore, bad call sound quality

Well...that's my problem...
I can't receive or send SMS anymore...
Last SMS I received did not make a sound or a reminder...I accidently clicked on sms tab when I saw it...
Last few had some problems with new messages notification...it just did not disappear for a lot more seconds as it should...
The second problem is incall sound quality...
I hear very bad and sometimes computer voice...
The person on the other end hear echo of his voice...
I had this echo problem for few weeks but it was very minor...
Now suddenly I can't use SMS and calling is so annoying...
And I am very sure these problems are connected because they started at the same time...
Top taskpar also does not bring up notifications menu...only start button works and battery bar is updated...
What could be the problem?
Software or hardware?
I am using EnergyRom, but never had problems with it...

I'm guessing a problem with Radio, due to the sms failure and robot voice in call. Try flashing another RADIO, it might solve the problem.
Sent from my HD2 HyperDroidCM7v3.1 using XDA Premium

I've been using radio and rom I have for more than 3 months...situation began 3 weeks ago...
If I flash the radio again...do I need to hard reset?

Hard reset may be a good idea & you can make a backup first thus can recover fully if reset does not resolve issue.
Are you sure sim card & network are free from errors ? have you tested sim in another device & another sim in your device ?
Does the signal strength apear in normal strengh parameters.
What network/country is this happening on ?

Mister B said:
Hard reset may be a good idea & you can make a backup first thus can recover fully if reset does not resolve issue.
Are you sure sim card & network are free from errors ? have you tested sim in another device & another sim in your device ?
Does the signal strength apear in normal strengh parameters.
What network/country is this happening on ?
Click to expand...
Click to collapse
I guess I will reflash radio and new July4 rom because I use June1 rom...
I am in Slovenia, I use Mobitel network...I did not test SIM...Signal looks same as always...
I did remember something new...weather location says Slovenia and not city anymore...this has been since the problems began...and it doesn't update weather very often anymore...
Internet connection works well...
Probably flashing would be best option...if it doesn't fix the problem, I'll return the device to be rapaired...

Sounds more like a network change & perhaps your device phone band settings & sms centre number need adjusting ! weather failing to update &/or not pull actual location is normally always network tower related so I guess Mobitel may have done some reconfigering of its towers !
Really worth swapping sims & another device before flashing or sending into repair. Also a call to Mobitel may shed some light on any network changes if you get a brighter than average human call centre drone ...

Bence;17846361If I flash the radio again...do I need to hard reset?[/QUOTE said:
No. If you only flash RADIO you do not have to hard reset.
Click to expand...
Click to collapse

[Q] i9505 stuck out of service

Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.

what network and firmware you on and wich s4 variant:thumbup:
Sent from my GT-I9505 using xda premium

I9505XXUBMEA I9505OXXBMF1
It's Europe standard i9505.
Network is Digi.Mobil Romania - but I doubt it's relevant since it can't get even emergency only (other networks).

so... any idea?

Android needs to work on it's notification. No Service and the reception bars only gauge voice coverage. You can test this out by using Service Mode to do a PS Only (data) attach instead of the standard PS + CS (voice) attach. It'll say no service, but data will be fine.
Emergency only, is when there is coverage from other operators but not yours. No service, means your way off the grid.
I've noticed the issue you describe and it's only on some firmwares. Try a newer one and see if you still have the same issue. But you might notice a drop in your battery life because your phone will be scanning all the time. If you're happy with no coverage at work, best to just turn it off and then turn it on when your outside.
Best option is to tell your operator about the lack of coverage. There's someone in charge of stats who get's beaten every time you drop a call. You'll get extra attention if you've got other businesses around you, so let them know that too.

Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.

avoid said:
Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.
Click to expand...
Click to collapse
but...what about reboot phone? i know isnt funny but until u find a problem u can just reboot ur phone while u are going out from ur office...or just try to enable and disable airplane mode

Of course reboot works but I am looking for a solution, not a partial workaround.
The most annoying problem is that if I forget to reboot it when I leave work it will not recover network connectivity even if I am in areas with very good coverage, areas where you would expect your phone to work.
It looks like when it decides to give up it does not try again. It is very weird that it also drops the signal from other networks (the "emergency only") even if it's well in their coverage areas. I guess I will have to switch phones... Even if this issue was present for the iPhone too it never took more than a few minutes for it to recover on its own. And I'm not an apple fan

Just to do some brain ecercise...do u keep in power save when u are out of signal ? Its possible that disable check after few tries
Sent from my GT-I9505 using xda app-developers app

It's not in power save. I only use that function in case of battery emergency.

Same problem here
Hello, I have the EXACT same problem here. I am in Argentina.
Now, I've been in the USA for a few weeks, visiting, and while my phone was roaming, I didn't have a single problem with my phone.
Since I came back, 3 days ago, I haven't had any problems in Argentina, either.
Is it possible that something got activated when the phone was registered to another company? (it was AT&T i believe)
If that's the case... maybe you can try putting a sim card of another company and see if you still have the problem?
Please let me know if you still have the same problem or if you got it solved. I would love to know something more scientific about all this.
I don't know if this is relevant, but my compass is off by about 30 degrees. Maybe my phone is defective?
THANKS FOR ALL YOUR HELP YOU CAN GIVE ME WITH THIS
---------------------
avoid said:
Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.
Click to expand...
Click to collapse

Hi I have similar issue,
My phone says its out of service or no signal or no network also I checked my sim card in other phone in the same place and it is fine. The i9505 model in ireland meteor provider was running ok until deicided to give a try to another network operator, when I changed the sim card it didnt only catch up the signal from new network provider but also it refuses to catch the old network provider. Funny thing is that I am receiving 3G but no signal bars and no service sign is beeing displayed. I am running latest official BTU (UK) firmware, the phone was never rooted, altough I had to remove the simlock and instal unbranded firmware. The phone worked fine with the newest updates for a month and now I am facing this trouble.
No factory resets nor installing same radio (couple of times) have helped. Also I used odin to instal same firmware (as it has locked bootloader) so I cannot revert back to other stock firmwares, but still no joy.
hope that someone faced the same problems and describe how to solve this issue. thanks

Mobile Internet connection

Hi, sorry for disturbing, I have a weird connection problem and I am pretty sure it is not the internal antenna... When i use the phone for Internet, mail etc etc.... Everything goes fine it uses a 4G connexion and I almost never have a problem, I do have a problem Sometimes when I am not in a 4G covered area... Than i have to change the network modus to wcdma /gsm automatic because if I leave it on lte /wcdma /gsm the phone is jumping all the time between hspda /h/edge gprs... And this goes fast like that that connection fail... This problem stops when i change modus than I get a stable 3g connection.... A little bit disturbing but Okay..... The biggest problem is that I m always connected with my messenger services like for example WhatsApp.... When i have the phone in my hand no problem at all.... But when he stays on the table or in my pocket it is kinda weird.... Sometimes I don't recieve my messages and than suddenly when I pick up my phone I get like ten messages in once starting from like half hour before.... All this started like three weeks ago, network provider say there are no network problems, I didn't drop my phone or something... Internet connection is just acting very strange lately and this started before I updated to the official 4.4 rom and didn t change after...... I also have to tell that I don’t have problems at all with phone calls or texts messages..... It's just those two mobile Internet issues.... Since i m only good for using the phone and don't know nothing about the technical parts or something... I wanted to ask the question to all of you experts.... And wanted to ask for help and if possible a solution? I want to thank you in advance and hope you guys can help me soon.... Kind regards...
Sent from my GT-I9505 using XDA Premium 4 mobile app

Try different modem perhaps?

Hi thanks for answering.... Tried everything.... Still same two connection problems..... Only thing I didn't do yet was a hard reset.... Could this problem be caused by an application or a bad uninstalled application? Thanks in advance
Sent from my GT-I9505 using XDA Premium 4 mobile app

Steven.svde said:
Hi thanks for answering.... Tried everything.... Still same two connection problems..... Only thing I didn't do yet was a hard reset.... Could this problem be caused by an application or a bad uninstalled application? Thanks in advance
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hmmmmm, highly unlikely from my point of view, but however there could be some apps locked into 2G or 3G or 4G connection.
Try how clean system doing, if it's same, consider it a hardware problem which there is nothing we can do about it...

samsung s4
i am having network issues
wifi works good
2g works good
3g/4g doesnt work at all no signal if i select these networks
is it a modem issue or kernel issue

[Q] Note4 loosing data connection

Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks

silverado said:
Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks
Click to expand...
Click to collapse
I've just experienced this today on my 1 day old N910C, I'm on 4G and suddenly earlier today my 4G mobile data indicator disappeared but it still showing the usual signal bars. Tested browsing, no mobile data it said. Tried putting it to Airplane mode then back to normal, didn't bring mobile data back. Rebooted it, then it's working again.

Not yet to see this problem but my friend's Note 4 had this problem. In the end he brought it to the service center and they replace the mainboard. Still wait and see if it fixes the problem.

it happened me before on other samsung devices too. generally an update fixes it but could be hardware problem too.

Hopefully its software related ive seen a slew of note 4s have this issue both variants included.. its annoying to say the least

Hi, I just got my phone, may i know whether you guys have resolved the issues?? i need to turn the flight mode on and off a few times to get the data connection back online

I sent back to Samsung services center, it seems that they said they reprogram the software. Will observe and see how it goes.

Mines all good now few updates and new provider all good ?

Hi guys, I've experienced the same issue, the mobile data connection suddenly drops (H+ icon doesn't disappear but the download arrow is off, meaning that there's no inbound traffic) and the only way to have the connection back is to to disable mobile data and than reactivate it. I've updated my phone, I even tried to install firmwares of other countries (different csc) and to change carrier but I haven't solved the problem (same situation on my friend's N4).

Hi
i had a problem with wifi. weak or no connection.
100% solution for my note:
go to settings=>location=>use GPS ONLY.
perhaps it solves also your problem...

Hello all! Just faced the same problem! Losing internet connection. Did anyone find a solution?

Note 4
Yes this is BS. If I go to a place with no data service, then travel back to a place with data service, I have to first disable then re-enable the "Mobile Data" toggle in the settings. It's such BS that this is happening. My note 3 NEVER has this problem. Starting to dislike Samsung's buggy releases.

Same issues..
silverado said:
Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks
Click to expand...
Click to collapse
----- got same problem here.. keep drop the signal.. until fedup already.. can someone solve this thing? Need answer.. T_T

Any news on topic? I'm facing with internet on mobile connection, even if bars are full and LTE sign is visible.
I've also noticed some lack of signal during usage, even if I'm constantly in city.