Database Users

[Q] No signal problem

Hi all! I'm experiencing a serious problem with my I5800. Suddenly I'm unable to connect to my carrier network, no signal at all. I was using Kyrillios till now, but it is still not working after i flashed a stock JPF. I tried everything, different versions of stock and Kyrillios, clearing data and cache, using another SIM from other carriers. No matter what I do my phone is unable to connect to the phone network. Searching in the forums i found others facing this problem after using Kyrillios for some time... but no solution worked. So basically now I have a "dead" phone... Any help? Someone with the same problem?

Try to choose a different network operator. Go to Settings -> Wireless and network -> Mobile networks -> Choose network operator. Try all options and see if any of em work.

I can see all my country networks, but when i choose mine the popup says registered and after some mins a red sign appear in the bar "No service (my carrier name)". I tried other carriers but I can't use others with my sim. Also i tried other sims as i said of other carriers and they all ahve the same problem. In other phone they all works normal.
I'm wondering if the Kyrillios ROM can damage the antenna or something like that. It could be a serious issue caused by it.

Nah I don't think it does. Not physically at least.
Try flashing an eclair rom, preferably the one which you had originally. Maybe that'll help. Or some ROM, just so you can be sure it works at least with some ROM. Then we can start thinking of new solutions

I tried many eclair and froyo now. It don't connect to the network. No ROM works.

matrixino said:
I tried many eclair and froyo now. It don't connect to the network. No ROM works.
Click to expand...
Click to collapse
it might be some imei related problem?? :S

matrixino said:
I tried many eclair and froyo now. It don't connect to the network. No ROM works.
Click to expand...
Click to collapse
I suggest flash the stock rom which you originally had and take it to samsung service..

Giosiken said:
it might be some imei related problem?? :S
Click to expand...
Click to collapse
thats can be it. i changed it to all 0 and after some mins it connected. long story short: i won a lawsuit against them for privacy violation (thet had to pay circa 70k euro) so i suppose they blocked my phone bought from them as revenge. (vodafone)
Sent from my Galaxy S using tapatalk.

Problems with galaxy s5 network

Hello guys! long time lurker, first time poster here.
I have a galaxy s5
recently the phone acted extremely weird when i first used it. So i flashed the phone and re-installed the android software which fixed all the weird problems i was having.
Now im still having 1 problem. with my SIM card installed i have full network (5 bars) when i try to make a phone call i get a "not registered on network" error. I remove my SIM card, the network is still present (5 bars)
I seem to have full signal at all times with or without my SIM card. The phone does not acknowledge the SIM when i put the SIM card in or when i remove it.
Did i do something wrong when i flashed my phone? i installed the same stock ROM that was on the phone with the proper carrier (videotron)
I need your help!
Thank you in advance.

i forgot to mention that the phone is rooted. If i could somehow figure out how to reset the carrier settings i think it might help.

GeoffreyM said:
i forgot to mention that the phone is rooted. If i could somehow figure out how to reset the carrier settings i think it might help.
Click to expand...
Click to collapse
have you tried going into settings, Mobile Networks, and then Network search? and let it sit and pick your own network? do you have another active sim you could maybe try?
Sent from my SM-N9005 using Tapatalk

hyelton said:
have you tried going into settings, Mobile Networks, and then Network search? and let it sit and pick your own network? do you have another active sim you could maybe try?
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply.
I've tried selecting my own network manually serveral times with 2 different SIM cards.. It didn't change anything. I still have full service without a SIM card.

Maybe you flashed a wrong modem for your area, try to flash the right and newest modem for your area. If that takes no effect, contact your service provider.
Sent from my GT-I9505G using XDA Premium 4 mobile app

...

.......

Check your APN settings. Also, try a SIMswap. Old sims do not like new phones, and mobile data is the first to go.
Sent from my SM-N9005 using Tapatalk 2

ShadowLea said:
Check your APN settings. Also, try a SIMswap. Old sims do not like new phones, and mobile data is the first to go.
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
APN is done by Vodafone automatically, checked it manually too. It's proper. Of course I cut my SIM. Big sized SIM can't even fit this device.

King ov Hell said:
APN is done by Vodafone automatically, checked it manually too. It's proper. Of course I cut my SIM. Big sized SIM can't even fit this device.
Click to expand...
Click to collapse
Ahhh, there we go. Try a different SIM. Either it's too old (anything before January 2013 is too old), or you're one of the 50% where cutting the SIM causes problems.
(Yes, I know it doesn't fit. 30% of my day revolves around people with faulty sim cards.)
Sent from my SM-N9005 using Tapatalk 2

King ov Hell said:
I get my N9005, telephony functions are working (calls - message - wifi bla bla) but I can't use my mobile data. Neither 3g nor 2g.
When I activate mobile data icons are existing like there's a connection. H, H+, E icons exists but no connection. I upgraded my firmware to NF4 too, did all wipes but still not working...
Click to expand...
Click to collapse
tried update modem?
basic problem lies on the APN setting. but if you said you have checked it and all ok, try to update your modem into your device latest modem.
I use a big simcard cut into smaller one, and no problem. I have old simcard since 2011 as well.

ShadowLea said:
Ahhh, there we go. Try a different SIM. Either it's too old (anything before January 2013 is too old), or you're one of the 50% where cutting the SIM causes problems.
(Yes, I know it doesn't fit. 30% of my day revolves around people with faulty sim cards.)
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
I had my SIM since 2007. This should be problem
antique_sonic said:
tried update modem?
basic problem lies on the APN setting. but if you said you have checked it and all ok, try to update your modem into your device latest modem.
I use a big simcard cut into smaller one, and no problem. I have old simcard since 2011 as well.
Click to expand...
Click to collapse
Like I said in the OP. I already upgrade my whole firmware. Modem is updated too but problem is still same.

Put your SIM card into another phone and test.
You may have to check with your mobile operator for data-service registration.

King ov Hell said:
...
Like I said in the OP. I already upgrade my whole firmware. Modem is updated too but problem is still same.
Click to expand...
Click to collapse
u can try what vndnguyen said.
But, just to comment... actually, when you upgrade firmware, normally it won't flash any modem/csc. You will need to do it manually.
This is what I know when I experienced on any official firmware upgrade on my device.

antique_sonic said:
u can try what vndnguyen said.
But, just to comment... actually, when you upgrade firmware, normally it won't flash any modem/csc. You will need to do it manually.
This is what I know when I experienced on any official firmware upgrade on my device.
Click to expand...
Click to collapse
Hmm, I did the process with Odin. Check SS Isn't that a modem ?

King ov Hell said:
Hmm, I did the process with Odin. Check SS Isn't that a modem ?
Click to expand...
Click to collapse
yep. that's the modem.
pull it out from the zip. and flash it from ODIN under CP.
when you go to download mode, make sure you switch your phone completely OFF first. then go into download mode by 3 combo buttons.
if 1st try fail, no need to worry. repeat the same steps, and you are good to go.
Sometimes I need 3 times to succeed. Don't know why also. Sometimes 2 times, and sometimes 1 time also no problem.

I (as with others) are having the exact same issue and is actually something that has been brought to Google's Attention: https://code.google.com/p/android/issues/detail?id=63524 Note that the Android Issue tracker refers specifically to The Nexus 5 but other users in the page are also having the issue on other devices, like you and I.
I have tried multiple different possibilities to fix it but still no solution.

My bad guys. My internet package was out. (I didn't pay -.-) Paid now it's working.

[Q] SM-G906K audio problems while calling: how solving?

Goodmorning to all,
I am Loris from Italy writing: I am new here and I am not sure I am doing right so, if I am wrong writing something, please tell.
After this I can tell you my problem: I bought a SM-G906K, Samsung Galaxy S6 Prime from Korea as you know, and I soon had problems while calling: if I am calling or receiving a call, sometimes soon, sometimes after some seconds, sometimes after some minutes, or sometimes it does not happen, I can not see anymore person speking on the other phone, but note: they can hear me.
I already try to call even with Skype, and it seams there is no problem: audio is ok even while reproducing video and so on. I tried making calls in emergency mode too, just to understand if some app could be bad, but I have the same problem, always and ony with calls.
What could I do? Please help me, if it is possible.
I am using a 4G Vodafone MICRO SIM card.
Best regards
Loris

loris.filtrading said:
Goodmorning to all,
I am Loris from Italy writing: I am new here and I am not sure I am doing right so, if I am wrong writing something, please tell.
After this I can tell you my problem: I bought a SM-G906K, Samsung Galaxy S6 Prime from Korea as you know, and I soon had problems while calling: if I am calling or receiving a call, sometimes soon, sometimes after some seconds, sometimes after some minutes, or sometimes it does not happen, I can not see anymore person speking on the other phone, but note: they can hear me.
I already try to call even with Skype, and it seams there is no problem: audio is ok even while reproducing video and so on. I tried making calls in emergency mode too, just to understand if some app could be bad, but I have the same problem, always and ony with calls.
What could I do? Please help me, if it is possible.
I am using a 4G Vodafone MICRO SIM card.
Best regards
Loris
Click to expand...
Click to collapse
Put your sim card into another phone and test to see if the problem persists?
That maybe the problem of the network, not your phone.

vndnguyen said:
Put your sim card into another phone and test to see if the problem persists?
That maybe the problem of the network, not your phone.
Click to expand...
Click to collapse
Goodmorning and many thanks for your answer: I already did that, I already changed 3 sim card too, but the problem is going on: with my old SIII all the sims are working as well. Maybe could something work wrong between network and the phone connectivity? From Korea they told me there would not be any problems at all ... but I am seeing it is not like that.
Anyway sometimes I can do calls of 5/10 minutes without problems...so it is strange it is a network issue, is not it?

loris.filtrading said:
Goodmorning and many thanks for your answer: I already did that, I already changed 3 sim card too, but the problem is going on: with my old SIII all the sims are working as well. Maybe could something work wrong between network and the phone connectivity? From Korea they told me there would not be any problems at all ... but I am seeing it is not like that.
Anyway sometimes I can do calls of 5/10 minutes without problems...so it is strange it is a network issue, is not it?
Click to expand...
Click to collapse
I said that may be a network problem. As you have tested with another phone without problem, I doubt that is the problem with your phone.
Try to factory reset to see if it helps? If not, it maybe a hardware fault.

vndnguyen said:
I said that may be a network problem. As you have tested with another phone without problem, I doubt that is the problem with your phone.
Try to factory reset to see if it helps? If not, it maybe a hardware fault.
Click to expand...
Click to collapse
I meant maybe problem between this Korean device and Italian network: could not it be? Have anyone had any experience about this?
I already tried to factory reset by Kies many times but it does not help, and I noted that updates remained on firmware, they were not brought at factory state. If it is a hardware fault I think I'd have this problem with Skype calls too or other programs, is not it? Luckly, or not, this is the only situation I can not hear from the other line ... I really do not know what to do ...

Could it be it is the mark Olleh giving problems? Maybe using a G906 not K (I think this is properly for Prime Special Edition) but S it could work good: don't you think so? K and S are the same, is not it?

loris.filtrading said:
Could it be it is the mark Olleh giving problems? Maybe using a G906 not K (I think this is properly for Prime Special Edition) but S it could work good: don't you think so? K and S are the same, is not it?
Click to expand...
Click to collapse
Call your WIFI provider and ask them to change the channel. Mine was set on AUTO and calls were delayed up to 4 hrs. When they changed the channel (to 11) my phone worked as it should. May not be your problem but something to try.

nrthwds said:
Call your WIFI provider and ask them to change the channel. Mine was set on AUTO and calls were delayed up to 4 hrs. When they changed the channel (to 11) my phone worked as it should. May not be your problem but something to try.
Click to expand...
Click to collapse
But if I am not wifi connected I had the problem too ... I am trying this but I do not know if it is the right solution. At the moment many thanks for your idea ...
Excuse me but what do you mean by "calls were delayed up to 4 hrs"?!

Could it be the solution changing the CSC? Maybe deleting KTC and using another key it could work ... any idea?

loris.filtrading said:
Could it be the solution changing the CSC? Maybe deleting KTC and using another key it could work ... any idea?
Click to expand...
Click to collapse
As the problem happens randomly, I can not tell exactly what may cause the issue.
Changing the CSC or flashing another firmware is a good idea to eliminate all software-related issues.
If you want to change the CSC, install Phone INFO ★Samsung★ app > Menu > Other Tools > CSC Changer.
(Note: That feature requires root to work).

vndnguyen said:
As the problem happens randomly, I can not tell exactly what may cause the issue.
Changing the CSC or flashing another firmware is a good idea to eliminate all software-related issues.
If you want to change the CSC, install Phone INFO ★Samsung★ app > Menu > Other Tools > CSC Changer.
(Note: That feature requires root to work).
Click to expand...
Click to collapse
Goodmorning, ok many thanks ... now I have to understand the way to do those two passages just to try, but first of all one question: doing this what about warranty? The smartphone is only 2 weeks old so, if I am losing warranty, as first I am trying changing it I think ... let me know ...

loris.filtrading said:
Goodmorning, ok many thanks ... now I have to understand the way to do those two passages just to try, but first of all one question: doing this what about warranty? The smartphone is only 2 weeks old so, if I am losing warranty, as first I am trying changing it I think ... let me know ...
Click to expand...
Click to collapse
Flashing the stock firmware and changing the CSC will not trip the Knox.
However, changing the CSC may need root to work. If it requires root, make sure to use a root method that does not trip the Knox.

vndnguyen said:
Flashing the stock firmware and changing the CSC will not trip the Knox.
However, changing the CSC may need root to work. If it requires root, make sure to use a root method that does not trip the Knox.
Click to expand...
Click to collapse
Ok I will look for that, hoping to find the solution by this way ... but is not the 4.4.4 or L version arriving so that I could wait for that official? ...

loris.filtrading said:
But if I am not wifi connected I had the problem too ... I am trying this but I do not know if it is the right solution. At the moment many thanks for your idea ...
Excuse me but what do you mean by "calls were delayed up to 4 hrs"?!
Click to expand...
Click to collapse
Calls went to VM, the phone never rang. I wouldn't receive the VM for up to 4 hours later. Messages were delayed, I did not receive the message for 30 minutes from the time the person sent it to me until it finally showed I had a message.
I know it sounds crazy that the WIFI could cause a problem but it did.
Turning off WIFI on my phone did not solve the problem.
When I powered off the router/modem in my home my phone starting working correctly.
Something to try, hope it helps.

nrthwds said:
Calls went to VM, the phone never rang. I wouldn't receive the VM for up to 4 hours later. Messages were delayed, I did not receive the message for 30 minutes from the time the person sent it to me until it finally showed I had a message.
I know it sounds crazy that the WIFI could cause a problem but it did.
Turning off WIFI on my phone did not solve the problem.
When I powered off the router/modem in my home my phone starting working correctly.
Something to try, hope it helps.
Click to expand...
Click to collapse
Goodmorning, surely I am tryin, but I had this problem in places there was not wi-fi ... so I do not think it is changing problems at all ... otherwise I should change something on phone wi-fi maybe ...

Galaxy S5 G906K
Hi,I have exactly the same problem and I can not use the mobile because of this.I leave in Cyprus and I can not hear the person who I try to speak with,sometimes in the middle of conversation,sometimes from the begining or I can speak 5 minutes without any problem.Seems like we have to make some setting for Europe inside in the phone with ☆#0011# and the phone to be rooted first?

This is a problem,if we rooting the phones we losing the warranty but it looks like is no other possibility to escape of our issue.How else?

Galaxy S5 G906K network incompatibilitty
Well,we found out what the problem is with hearing issue while calling.Is comming from the incompatibilitty of the phone hardware network and each country networks providers.Let me explain:Galaxy G906K Lte has only 3G and Lte(4G)networks build inside.So,if you are living in a country who doesn't have 4G install yet or not all over and instead have 2G and 3G only,and this 3G it does not cover all the areas,then when are you not in the 3G antenna area you"ll gonna lose the reception because this type it does not have 2G old GSM network build inside.That means we can not use it in 2G base network countrys.I hope I helped anyone who have this type of galaxy mobile phones.

Unfortunately I have understood you explanation, but before buying it I clearly asked to the seller and they made me sure the device would have worked as well: who told you such this explanation? What site did you buy the S5 from?
Many thank
Loris

Get this
Who told me this?Nobody, is very simple:go on Settings>More networks>Mobile networks>Network setting>RAT mode setting and you will see there Ltd network and 3G network,NO GSM network(2G).So,all the mobiles from Korea are for Korea and other country's which have 3G or Lte(4G)networks.For example Korea have ONLY Lte network. That's why is for Korea and this phone was named Galaxy S5 Lte-A. You must ask refund!

[q] problems with gsm band. Please help me!!!

Please Help !!!
I have a SM-N910C.. As you know it is not cheap phone. Since I use it as a business phone, I have constantly to have the transmission and reception of data and the Possibility of calls and sending messages and e-mails.
The problem is when I travel around the country, once and for battery saving, I constantly got internet. Almost all my country is covered with a good signal, except for some parts between the mountains ........
When I want to switch to the Mobile Internet GSM only, losing connection. I can only call emergency calls. I did a factory reset on the phone three times and nothing helped. I have replaced the sim card that did not help.
Please, this is really important, help me.
Thank you very much.
P.S. The card I tried it on my sister's phone (Galaxy S4) and all works perfectly???

Please Help !!!

Please Help !!!

ph.miki said:
Please Help !!!
I have a SM-N910C.. As you know it is not cheap phone. Since I use it as a business phone, I have constantly to have the transmission and reception of data and the Possibility of calls and sending messages and e-mails.
The problem is when I travel around the country, once and for battery saving, I constantly got internet. Almost all my country is covered with a good signal, except for some parts between the mountains ........
When I want to switch to the Mobile Internet GSM only, losing connection. I can only call emergency calls. I did a factory reset on the phone three times and nothing helped. I have replaced the sim card that did not help.
Please, this is really important, help me.
Thank you very much.
P.S. The card I tried it on my sister's phone (Galaxy S4) and all works perfectly???
Click to expand...
Click to collapse
Did you buy your phone online than chances are there of phone flashed with super imei, dial *#06# & match with imei under battery, is it same?

No. I was buy in Samsug shop.

jdomadia said:
Did you buy your phone online than chances are there of phone flashed with super imei, dial *#06# & match with imei under battery, is it same?
Click to expand...
Click to collapse
imei is the same.
Where is ather develepers????

Can enybady helllppp me???
Sent from my SM-N910C

ph.miki said:
Please Help !!!
I have a SM-N910C.. As you know it is not cheap phone. Since I use it as a business phone, I have constantly to have the transmission and reception of data and the Possibility of calls and sending messages and e-mails.
The problem is when I travel around the country, once and for battery saving, I constantly got internet. Almost all my country is covered with a good signal, except for some parts between the mountains ........
When I want to switch to the Mobile Internet GSM only, losing connection. I can only call emergency calls. I did a factory reset on the phone three times and nothing helped. I have replaced the sim card that did not help.
Please, this is really important, help me.
Thank you very much.
P.S. The card I tried it on my sister's phone (Galaxy S4) and all works perfectly???
Click to expand...
Click to collapse
Some carriers decommissioned GSM services in favor of more modern 3G and LTE services. If your carrier decommissioned the GSM service, then you will not receive any 2G service even though you force your phone into it. There is not much we can do here if this is the case.

LTE-X said:
Some carriers decommissioned GSM services in favor of more modern 3G and LTE services. If your carrier decommissioned the GSM service, then you will not receive any 2G service even though you force your phone into it. There is not much we can do here if this is the case.
Click to expand...
Click to collapse
Of course, but do not have decommissioned GSM services. Like I sad, I tested the uSIMcard on SGS4. I had all services (GSM, WCDMA, LTE). I think that is problem in my phone. And when I was on 4.4 I was have GSM and WCDMA. I am realy confused?
http://www.telenor.rs/sr/O-Telenoru/Mreza/4G/
Do you have any suggestions what to do?

ph.miki said:
Of course, but do not have decommissioned GSM services. Like I sad, I tested the uSIMcard on SGS4. I had all services (GSM, WCDMA, LTE). I think that is problem in my phone. And when I was on 4.4 I was have GSM and WCDMA. I am realy confused?
http://www.telenor.rs/sr/O-Telenoru/Mreza/4G/
Do you have any suggestions what to do?
Click to expand...
Click to collapse
I apologize for not understanding your problem the first time. This is definitely a modem problem of your Galaxy Note 4. The modem that is inside your Galaxy Note 4 is either not recognizing the GSM band of the carrier or not recognizing the proper driver/kernel made for the device. I think the best way to resolve this issue is appealing to the carrier. Visit your carrier store and show them the problem(show how your phone is not connecting to GSM signals). Then, ask for an exchange. If that doesn't work, contact Samsung and ask for RMA and replacement phone to use during repair process.

LTE-X said:
I apologize for not understanding your problem the first time. This is definitely a modem problem of your Galaxy Note 4. The modem that is inside your Galaxy Note 4 is either not recognizing the GSM band of the carrier or not recognizing the proper driver/kernel made for the device. I think the best way to resolve this issue is appealing to the carrier. Visit your carrier store and show them the problem(show how your phone is not connecting to GSM signals). Then, ask for an exchange. If that doesn't work, contact Samsung and ask for RMA and replacement phone to use during repair process.
Click to expand...
Click to collapse
I thin that is the problem with modem. I am on stock rom, and I do not now? If I root my phone the knox will be 0x1. Is it psible to root with not triger the knox??

If you root, yes the knox will be tripped. As of now, there is no way of rooting safely without tripping knox.

LTE-X said:
If you root, yes the knox will be tripped. As of now, there is no way of rooting safely without tripping knox.
Click to expand...
Click to collapse
Ok, what aboute kernel, or modem wia odin?

ph.miki said:
Ok, what aboute kernel, or modem wia odin?
Click to expand...
Click to collapse
If you are flashing stock kernel or modem, it will not trigger knox. If you are flashing custom kernel or modem, it will trigger knox.

LTE-X said:
If you are flashing stock kernel or modem, it will not trigger knox. If you are flashing custom kernel or modem, it will trigger knox.
Click to expand...
Click to collapse
Ok, I now that. But wich kernel to install or modem. No idea!!!

ph.miki said:
Ok, I now that. But wich kernel to install or modem. No idea!!!
Click to expand...
Click to collapse
From my past experience, flashing the kernel for the modem does not fix this issue where the modem itself doesn't fully recognize the kernel. However, you can try flashing the Poland stock rom which has the most stable modem package .so embedded.

LTE-X said:
From my past experience, flashing the kernel for the modem does not fix this issue where the modem itself doesn't fully recognize the kernel. However, you can try flashing the Poland stock rom which has the most stable modem package .so embedded.
Click to expand...
Click to collapse
Which whone. Ther is two LP stock roms?

ph.miki said:
Which whone. Ther is two LP stock roms?
Click to expand...
Click to collapse
Baseband version, N910CXXU1BOC3, has the most updated version of the modem.

The same problem again. PLS HELPPP!!!!