Phone can't connect to one specific carrier network - Samsung Galaxy Note 8 Questions and Answers

Hey guys,
my Samsung Galaxy Note 8 was on the table, when the AVG-Anti Theft alarm started suddenly.
I thought that it is just a bug and unlocked my phone, using the PIN, that I set when setting up AVG.
Now, the intetesting part starts:
I was not able, to connect my phone to the carrier-network (let's call it carrier A), which means I can't call anybody or send SMS or do anything, a phone is supposed to do.
At thirst, I thought that the sim card must be defect and tried to put it into another phone. The other phone did not have any problems, connecting to the network.
My second thought was that the modem or something like that in my phone has a defect, which is causing the issues. Oh boy, was I wrong, as every other carriers sim cards are working with the Note 8. I do have 3 sim cards from carrier A and each one from carrier B and C. All three cards from carrier A are not working, but B and C are.
Then I decided to call the carrier A support, which assured that my phone is causing the problems, rather than their network.
Afterwards, I tried hard resetting my phone and even re-flashing the stock ROM did not do anything.
I would appreciate any help.
P. S. I'm sorry, if my English is not that good, it is a foreign language for me.

Looks like it is the avg app that is causing the trouble, have you contacted de developer?

Contacted AVG
Yes I did contact the AVG support, but have not got an answer yet. But do you think that AVG could make such changes to the system, which would persist, even after a factory reset/ re-flash?

Related

Help revive my dead Kaiser

I have a big problem which I hope all you Kaiser gurus can offer some advice:
I got my Kaiser two weeks ago, pop in my USA T-mobile sim card (GSM only) and it worked perfectly. I then went over to Taiwan and the device was put in Airplane mode for about 10 days. When I get back to the states, the phone no longer works; all other features of WM6 works except it the phone service.
It cannot find the t-mobile network regardless in auto or manual network selection mode. I tried the SIM card on my other phone and it works perfectly so that rules out the SIM card. I did a hard reset and it didn't cure the problem.
Question is, can the altitude or air cabin pressure somehow killed the phone portion of the unit?
What other diagnostic methods do you recommend?
Hmm I dont know if this is a good idea but emergency services like 911 should still work, even without service. And by that I mean without being signed up for service. So it might help to test 911, then hang up if it rings once. Just to see if your radio still works. If it does, then the issue might be that the phone is not configured correctly to T-mobile.
Now this is only true in the USA. I'm not sure where you are from. But given that the USA has just about the oldest infrastructure in any developed nation, I'm confident it can only be better where you are from.
No, 911 does not work. Does this mean my radio is fried? What can I do?
hmm... this sounds like a bad radio flash gone wrong... and not saying so!
I tried it with my friend's AT&T Sim and it worked perfectly. Does it mean it's the carrier's problem?
it means probably your phone got sim lock somehow. Just do hard spl and unlock it.
I'd get another T-Mobile sim card if your device works fine with an AT&T sim. I realize you said your T-Mobile sim works great in another phone, but that's the only thing that makes sense.
Ok I'll try that. Problem is, I have several other T-mobile lines and I tried those SIMS already and no cigar.
Anyone else can contribute any ideas? HTC is not support me because this is an import phone.
mutantblack said:
it means probably your phone got sim lock somehow. Just do hard spl and unlock it.
Click to expand...
Click to collapse
This is MISLEADING info !
Hard-SPL = CID unlock = ROM options
it does NOT unlock the SIM !!
hello all
i got the "no sevice" problem which looks like the same as Valleydog's.
i got my kaiser about 1 month, everything goes very well
today im in class and turn on the flight mode.
when i turn off the flight mode, it cant find the sevice any more,it tells "no sevice"
i cant dial any number including 911,86,110 etc......i swap my friends' cards they couldnt work,too
oh,just a nightmare to me, i flash the htc ship rom(which contains a radio),problem still...
could anybody help me, was it suddenly sim locked? possible?
Why such bad thing happens on me(good person)...........
KAIS130 with hspl v1,flashed many roms without problem,just this problem suddenly scares me
Sheng
This happened to me briefly the other day; running a stock T-Mobiles Vario III with NO rom flashing done to it.
I went to make a call and there was no service. The phone had been in my pocket for a while. I soft reset it and it worked after that, but took about 5 minutes before it picked up a signal... It's been fine since though.
This really sucks... I will head down to the T-mobile store and try out all their SIM cards until I find one that works.
The thing that puzzles me is that the other carrier's SIM (AT&T) works fine
Why such bad thing happens on me(good person)...........
Click to expand...
Click to collapse
Haha....im sure its got nothin to do with that....mebbe u dun pray enough
Here's an update...I tried 3 working SIMS cards in T-mobile store on my phone and it still does not get signal.
Very frustrated at this point.
My phone worked intermittently at one point but now it's dead again. What a piece of crap.
This is so annoying, and HTC have no answer regarding this issue.
It is clearly not a hardware fault!!!
I have the same problem & it is so frustrating you guys can't imagine.
I have always loved HTC machines, but I am thinking never again!
Regards
Andre'
saper747 (andre),
Where are you located and what have you done to troubleshoot the problem so far?
Did you call T-Mobile to see if they have something configured wrong on their end? If the phone works with an AT&T sim, it would seem something on T-Mobile's side wasn't right.
There is nothing wrong as confirmed by T-mobile, the same SIM works on any other unlocked phone except my Kaiser
valleydog said:
saper747 (andre),
Where are you located and what have you done to troubleshoot the problem so far?
Click to expand...
Click to collapse
I am located in Israel I have tried 7 sim cards (2 -cellcom,3 -orange,1 -02 uk& 1-t-mobile ) non of them work on my Kaiser but they do in any other phone!!!
I have done soft resets & hard resets nothing helps.
it all started after I was trying to roam to another country and a day later my battery went dead, the next thing i new it wouldent register any network ,

Problems with Unlocked Kaiser on AT&T

I've had my unlocked HTC Kaiser for 2 months now on the AT&T Network no problems. On Thanksgiving Day, my phone decided not to turn on after I left the phone to charge overnight. I figured it did not get a good charge so I tried recharging it. It was flashing red lights near the the top of the phone. So I go into AT&T on Friday to see if its the battery or the european charger that may be at fault. I played around a few combinations in the store and it suddenly/magically turned on. (I decided to buy the charger and extra battery anyways). The employee decides that for some reason or another, the phone needs a SIM Card. Well here is where everything went downhill.
After the new SIM card, I was unable to make or receive any calls, and no access to my data plan. Sometimes, I would have full signal bars but still was unable to make/receive phone calls. I've been able to make calls on very rare occasions; especially in this room in our school. What to give? So I went into another AT&T store and noticed that they had the incorrect IMEI number down in their system,. I asked for them to fix it but they said they couldn't change it for some reason and that the IMEI wouldn't be causing the problems I'm experiencing. So I finally called Customer Service Support on the phone and supposedly they were able to change it to the correct IMEI #. But still the same issues. I've done soft, hard, master resets, take out the battery + SIM card, you name it and still the same problem! When I took the SIM Card out of my phone and put it in a Blackberry, it did work! But when I took the Blackberry SIM Card into my phone, it did not. The support team told me that indicates that it is my phone; but I clearly told them that it could also be due to the fact that the towers just aren't recognizing my device no longer.
So I spoke to HTC about this and they said its the SIM card and they wanted me to go in and get another SIM card. So I went into AT&T today and got a new SIM card but same problem. Again, same issue. So I called AT&T Customer Support today and asked them to bump me up to Level II or III support. She says she cannot do that because my phone is unlocked (from HTC) and no support for that. I gave her the rundown on how my phone was working for 2 months until they put in the new SIM card and my cell phone activity clearly show that. Then she goes on to mention that other technical service reps that have helped me in the past few days clearly have pointed the culprit to be my device and not AT&T as they have exhausted all tests. And I told her, it's like taking a brand new car to a mechanic and then get the car back not running. If you ask the mechanic what did you do to my car, he's not going to admit to anything. She says that my device isn't being recognized by the towers. So then I brought up the point of "So is it my tower or is it really my phone?". I told her it's no problem getting a new phone but if I get a new phone, will it be unrecognized by the towers again. She said yes because it is unlocked. I said what about the thousands of other people who use unlocked Kaisers or any phone for that matter as they seem to have NO problems. They basically want you to buy the phone directly from them.
In all, I've spent nearly 10 hours on trying to get this thing to rework and be able to place/receive phone calls. Whether this is due to the events which ensued after the red light indicator on Thanksgiving Day OR the fact that AT&T switched my SIM Card and caused my device to be undetected by towers (whether it was due to the fact they put in the wrong IMEI in the first place or any adjustment they made to my account) remains to be determined.
The only options that remain is: 1) Go to TMobile and try out their SIM card on my phone and see if it works. I highly doubt they too will let me do that as they consider phone unlocked and don't want to help 2) Get a new phone through HTC and hope it'll work on AT&T again.
Any ideas or support??? heheh. your help is truly appreciated
I feel you pain Brother.......
I don't have a clue how IMEI and towers can just not register your device...though....but anyhow, did you check if you have the Phone in the Dialing screen-Menu-Options, then the tab BAND on the bottom and both of them selected as AUTO? if not, then try changing bands.......
If you know that then, I'm thinking only of AT&T could have blacklisted you or some sort.......but that is highly unlikely......
I had some problem like that when i'm out of the country using Foreign Chips, and it seems the Kaiser needs a bit of time to adjust to new sims, and that can take minutes, hours...or even days......who knows what is happening as the phone is "learning"....... hope this helped you a bit....
I've been using my Kaiser for several months now and I did not register my IMEI, I just popped the sim out of my 8525 and took off running. It sounds to me like your phone has failed in some way, especially if your new sim works fine in another phone. The question now really is, where can you get a Kaiser fixed in the US? I spoke with HTC on another subject and I get the feeling that it may be difficult. I got mine from a shop in Canada, guess I'd have to go thru them.
In any case, good luck, it will be interesting to see what it turns out to be.
I second RemE -- like him, I bought a Tytn II & plugged in the SIM from an older phone (in my case a Qtek 9100 not bought through AT&T/Cingular), and have had no problems.
i had a similar problem with my 8525. I bought a Tilt to replace it, and about a week later I gave the 8525 to my son to use. neither his SIM card or mine would work in the 8525, but they worked in other phones. I brought the phone to the AT&T store and the guy there did something on his computer, then the phone was able to work. I'm not saying that AT&T blacklisted it, because I don't really know. But it took a change by the AT&T rep at the store to get the phone working again.
I have been using Kaiser with ATT for three months now with no problem. I just used the sim card from my Blackberry and so far, no problems.

Loosing network signal

Hi!
After weeks of flawless function my Xperia can not find my carriers phone network.
I have updated the phone to the new ROM but that does not help.
The phone finds the SIM card and asks for the code.
Strangly it can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
The Ipaq is not a 3G-phone. Can that have anything to do with it?
I'm getting lost here, all help is appreciated.
(ORIGINAL MESSAGE
Hi!
After weeks of flawless function my Xperia has started to lose it's phone network.
I notice it after I wake my phone up from stand by mode.
It doesn't help to turn the phone option off and on in Comm manager, but it has sometimes helped turning flight mode on and off.
Other times I had to restart the phone.
This happens a couple of times every day, after long times of not using the phone. I have not been able to trigger this problem, so I don't know what causes it or exactly when it happens.
Strangly it can connect to HDSPA while it has lost the phone network.
I have also experienced som freezes when I'm flipping between the panels to much.
All help is appreciated, thanks.
It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.
mo.ammi said:
It would be helpful if you could give us more information.
What ROM are you using
Which carrier you have
etc.
Click to expand...
Click to collapse
I'm using:
ROM 1.02.936.3
Radioversion 1.06.25.29
The carrier is Swedish Tele2.
In Sweden we have GSM-900 and GSM-1800.
Tele2 also provide me with UMTS and HSDPA.
Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.
krion said:
Today the problem became worse.
Even after repeated soft restarts it refused to find the phone network.
Then I change SIM-card to another carrier and it found the network.
I also tried the SIM-card that's giving me problems in another device. Works fine.
So both SIM-cards works. I'm now gonna go with the new carrier during the day to see if the problem come back.
If anyone have any ideas, please help.
Click to expand...
Click to collapse
All I can say that Xperia sometimes looks for the signal a bit longer it should IMO,
but I also know that carriers have many many problems usually and they're also often responsible for signal drops in some places too.
I know that 'cos I was talking to my carrier many times about it and learned something about it...
have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying
Amanox said:
have u tried hard resetting the phone or re-installing the software? ..
if u run the sony update software it will give u the option to re-install your phones software - not sure if that has the same effect as a hard reset ..
probably worth trying
Click to expand...
Click to collapse
Thanks for answering, I have now done a total reinstall and updated the phone to the newest R2... ROM.
The problem remains.
The phone finds the SIM card and asks for the code.
It can connect to internet through my carrier (Tele2).
But I can not get a connection to the phone network and make a normal phone call.
Is something wrong with the phone?
NO, cause with another carrier (Telenor) everything works pefect.
Then obviously something is wrong with my carrier (Tele2) or the SIM-card.
NO, cause when I put my Tele2 SIM-card in another device (Ipaq 6515) it works perfect.
I'm getting lost here, more ideas is appreciated. Tomorrow I will call Tele2 support.
Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.
artesea said:
Have you tried disabling 3G/HSDPA?
Chance that you have very poor 3G on your phone, whilst the IPAC is picking up ok 2G.
Click to expand...
Click to collapse
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?
krion said:
Thanks for replying.
I disabled HSDPA/HSUPA in the advanced network menu. But it didn't help.
I also tried to choose GSM only in the phone seetings menue. But I could not even change the setting. Just got an error message about not being able to change the network (or something similar).
Is there any other setting that might be worth trying?
Click to expand...
Click to collapse
Having worked for several phone companies a few years at customer service I know what the procedure is.
-First thing they do is ask you to do a "crosstest", try your SIM in another phone and see if that works.
-You'll tell them that you did that and everything works fine when you use another phone.
-They'll automatically conclude that there's something wrong with your phone (correctly)
-They'll ask you if you could do a hard reset ( You did that too)
-Then maybe they'll try and reset the network (which almost never works)
Basically they'll have no other choice then for you to return it and have them look at the problem / replace your phone.
I don't think we here can help you with your problem
Good luck and keep us posted
Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.
maedox said:
Get a new SIM card. I've seen problems like this before, and an updated SIM card solved it.
The best way would be to test your SIM card in a similar phone, the ipaq not being close because it's not even 3G.
Click to expand...
Click to collapse
I'm so confused right now.
Got my new sim card today, problem remains.
I call the carrier support and after they've looked the IMEI-number up they say that the phone is barred by an external operator. They won't tell me the reason and by what operator.
So I call the other carriers support and after they've done a IMEI-search they say that the phone is not locked in any way, by them or any other operator. After have been talking to Xperia support they come to the same conclusion. The phone is not locked but agree to that something is wrong, with phone or carriers, and they want me to try with a third carrier.
Final
I've handed in my phone to the seller and got another one back instead.
The end
Exact same problem
Howdy folks,
I have the exact same problem: My Xperia has worked fine for a month. Suddenly I can't register with Tele2 network (tried another Tele2 card as well that didn't work) for calling but have access to data channel so I can surf. Got told by the Tele2 support that my phone was fu**ed up. Got pissed off. Tried a sim for another provider (Telenor) that worked. Called the Tele2 support again. They noticed that I have an old (2g) sim, so they will send a new (3g) card to test if that fixes this mess. It should arrive late this week or early the next. Can't wait...
I'll keep you posted in this thread (or, if I should instead have made a new thread, a moderator may spank me and I will do better).
/Swedish Dave
Nope, new sim-card didn't fix it. But I have found at least one other xperia-user with this problem...
bad GSM signal
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english
My phone does the same thing
My x1 has had no problem with phone function or network. However, from the last week, the signal began to be lost sometimes, and the machine turned off automatically. and finally today, there is no signal at all.
MY SIM card works with other phones, so, I thought it might be software problem, and hard reseted with new rom. However, still no signal. It keeps looking. Does anyone have the same problem, and hopefully, solution?
I´m using my X1i with Tele2 as my service provider,but i don´t have any problems with signalstrength.. Works just fine..
speederTM said:
I have a X1
rom 1.03.931.10
radio 1.10.25.18
protocol version 52.56.25.29W
and since from the start I have bad GSM signal I have like 1-2 lines onli and it go up to 5line but onli from time to time (and then it drops again to 1-2line or none but If Itray to call is working or I get called but I can berly hear them bicose of the bad signal) on O2 network and in T-mobile is the same no mather wher I'm in town or outside of town; I'm in UK
is the phone damaged?? or...
sry for my bad english
Click to expand...
Click to collapse
I know I should've introdouced myself first, and that this is a strange first post, but:
HOLY SMOKES!!!
Xperia has FIVE reception bars????!!!!!
I always thought that 3 is the max value, since it only happened once that it went up to three bars, rest of the time it's maximum 2, usually 1.
I am also on Tele2 carrier, in Sweden that is, and since yesterday, I have no reception AT ALL.
Nothing.
Tried turning off 3G(or whatever it's called), nothing happens.
Tested with 3 other cards (one Tele2, one Telenor, one Telia) - all seem to be working okay. Except that the Tele2 one has slightly lower reception than the others.
Tested with 3 other phones as well - iPhone 3GS, Nokia 5800 Xpress Music, HTC Desire. All of them worked perfectly. Full coverage on that super-fast network thingy(the 3G symbol on iPhone).
Internet is just flowing on other phones - but Xperia is just falling behind in the most important section - reception.
Calls get dropped (2/3 of the calls), I must send same message at least 3 times in order to get it sent, Internet is crappy - if there's any at all.
Any kind of guidance is mostly appreciated.
P.S. A bit of those numbers which seem to be important:
Microsoft Windows MobileR 6.1 Professional
CE-OS 5.2.19608 (Build 19608.1.2.60)
ROM-version: 1.05.936.9
ROM-date: 04/19/09
Radioversion: 1.14.25.55
Protocol version: 1.0.11842.32680
Since all of you seem to have problems with one and the same carrier (Tele2) why don't you simply switch to another one? I once had a problem that was very alike the one described here and after several unsuccessful attempts of the carrier to fix it I simply switched to another one and all my problems were gone.

Network outage issues on Note8

Hi
I have been having issues with my Note8. It loses the cellular network periodically, and doesnt acquire it back. A reboot is required to get the network back but then doesnt last long. I have tried most everything. Listed in order
1. Reseating the Sim / Removing the SD card to check if that was an issue
2. Switching network from 4G to 3G to see if that was the issue
3. Factory reset a few times, including once while not installing apps and letting the phone run with less apps
4. Changing SIMs
5. Changing SIM tray with an S8
6. Using another network sim card
7. Running the phone in Safe mode.
I have exhausted everything that I can have done. Any other thoughts or suggestions?
Phone is within warranty so I can get it fixed, but the issue is that I live in a different country now and they will charge to just take a look at the phone.
Side effect is that while hunting for the network, the phone gets hot and runs down the battery.
I am hoping that there might be a software issue, as the phone does connect to the network for a while before losing connection.
Any help would be much appreciated.
Thanks a lot.
It looks like you have done all of the obvious stuff - it's starting to sound like a hardware fault to me.
Thanks! My worst fear unfortunately.
Was hoping someone might have a software solution or something else which I could try but...
i had same problem with 2 x galaxy s8
after they test for a month and big fighting with those F customer care
they replaced 1 with sealed box and the other one they changed the motherboard which doesn't help , still same problem
i sold both
Sent from my SM-N950F using Tapatalk

Question Mi 11 ultra isn't getting phone signal

Hey everyone. I bought a Mi 11 Ultra from china but I don't know why isn't getting signal at all. It detects the SIM but it doesn't let me make or receive calls neither messages, and obviously it doesn't connect to mobile networks. Can somebody help please?
Where are you, what network are you trying to use and have you got some screenshots of your network and SIM settings?
Hey, thanks for answering! Im in Mexico and about the network, any of them. I thought of changing the ROM from the CN to the global one to see if that help, but I need the mobile data to unlock the bootloader, and since the phone isn't getting signal, I cant do that.
P. S. Sorry, what do you mean by SIM settings?
Attached are screenshot of my SIM settings. Yours will be similar. Make sure your apn is set correctly. Make sure your SIM is recognised. Just basic setting checks. May be try other sim slot and of course, make sure it's right way up for either slot.
Without any screenshot I cannot see what may be wrong, so start again with SIM. Shiny side outwards and make sure it is recognised.
Hi again. Yeah, I have tried with both slots for the Sim, each one the correct way, but is the same result for both of them. Thanks for the example of the SIM settings, now I attach mine. As you may see, the SIM is getting recognized, just don't know why isn't getting signal. I've also tried with other company's SIMs, but I get no different result.
Looks good. I think you need to try with another SIM on different network and same. Try this SIM in different phone as it looks all good on screenshot but may be provider has not enabled it properly. If different network SIM known to be working doesn't work in your it must be hardware, hopefully not .
Also look at settings, all specs. Check SIM status and press 5 times on memory for deep phone info.
Hello and thank you again! Yeah... I've tried different SIM from different companys, all of them known to be working, but none of them has worked on this phone. I'm starting to lose hope... But here are the other settings, just to make sure isn't about software
The screenshot show that your radio is off. This is saying that your phone SIM is not turned on for some reason.
There is not much anyone remotely can do, if you are unable to get it turned on.
Maybe someone else has an idea? If not, and it cannot be resolved by resetting the mobile network ( in settings somewhere) or phone reset, then it may be back to seller as a hardware fault. Sorry I can't help. Let's hope someone else can?
Thanks a lot for your effort. Since you told me that the problem could be the hardware, I asked the seller about this issue and he told me that this problem is covered by the warranty, so I'll send the phone back to them. Again thanks a lot for answering!!
Just for info have you seen this thread about att? https://forum.xda-developers.com/t/not-a-recognized-device-by-att.4462649/#post-87088003
No, I hadn't heard about that, but still, I wouldn't hesitate on changing my provider if another one works, but since I tried changing to another provider SIM and nothing happened, I guess it was a hardware problem. Thanks a lot for the info!
Try doing manual search of network. If it shows nothing then try checking network frequencies of your network provider and comparing them with this phone supported frequencies. Sometimes its due to your network provider doesn't operate the frequency which this phone supports.
Juwis said:
No, I hadn't heard about that, but still, I wouldn't hesitate on changing my provider if another one works, but since I tried changing to another provider SIM and nothing happened, I guess it was a hardware problem. Thanks a lot for the info!
Click to expand...
Click to collapse
thats an easy fix, modem partition needs to be reflashed and configured via code

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