Hello,i'm having a internet connection problem with my Samsung s21 ultra whenever i'm using cellular data(not Wi-FI).It randomly lose connection and the only way to restore connection is to turn airplane mode on and off.First i thought it was problem with my carrier,but then i tested another carrier's sim card and the same problem occurred.After inspecting a little bit,ive noticed that my Service provider version is set to another country other where im currently living,and i was wondering can this be the reason why im having problems with connectivity and if it is ,is there any solution to that?
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Hi there.
I've a problem with my O1.
I've updated it to Gingerbread V20C stock and have a problem with the mobile internet connection.
My mobile operator is H3G italy. When there is no signal under H3G network it swap to another operator for roaming and the 3G connection drop. No problem till there, 'cos i disabled data roaming.
But when the H3G connection come back, it does not connect to internet. I've checked several times for apn parameters and they are ok, and it isn't a network problem for sure.
Any hint?
Sorry for my poor english, i hope you can understand my question as well...
3G problem with GingerLOL 1.5 (Vietnam)
Hi all,
I'm come from Vietnam. I met problem with 3G connection after install GingerLOL 1.5 ROM (http://forum.xda-developers.com/showthread.php?t=1118685).
Everything seems Ok except 3G connection.
Is there any one met the same problem ? If you knew solution for it, pls share it with me.
Thank you very much,
Hi all,
I am sorry, I have just found out the solution.
We should change APN setting, it can't detect it automatic.
In Vietnam, pls refer : tinhte.vn/thay-doi-nang-cap-firmware-280/p500-huong-dan-flash-rom-2-3-3-official-cua-lg-romania-root-753413
Other countries should take Mobile provider factor of your countries.
Thank you,
It's not a apn settings problem. My apn settings are ok and 3g connection work till the telephone lost h3g network and switch to other operator. When it come back to h3g i have the voice services but no 3g connection at all.
1) If you are not in roaming then turn off roaming, if you are in roaming then turn in on see it is working or not.
2) Just select on 2G from setting and check EDGE is working for you or not. If both the the things have same problem then talk to your ISP and confirm another phone has the same problem or you are only one who is facing this problem.
3) Some times your carrier change their APN without any notice so check they have same APN or not.
I'm sure it's not a network problem because other phones or the same phone with Froyo works with no problem at all.
With 2.3 i have 3g connection until i'm in a point where the default operator (H3G italy) have no signal so the telephone switch to the roaming operator. There the internet connection drop (i've disabled data connection while in roaming), but it's ok.
If the telephone switch again to the default operator i have no problem at all with voice services, but the 3G network connection don't come back until i reboot my O1. Other people have the same problem with the same device and the same version of android (lg stock rom) and the same operator (the only one that use roaming in italy).
I've had problems with my 3G connection too. Didn't go out of the country or anything, just turned on and turned off the 3G connection (data). Had to reboot every time it happens.
This seems a known bug with Gingerbread on P500 and h3g italy... Hope they fix soon....
Hi, I have same problem with data connection lost after return from national roaming in Slovakia (oprator O2). I have LG Optimus One with official gingerbread upgrade. Do you have some news about this problem? Thanks
Hi,
I have H60-L02 version with B307 from some time now and lately I noticed that, without warning, one or both sims are been disconnected from network, putting me in the situation in which I cannot make or receive calls. If I change from 2G to 3G on sim 1 it reconnects.
The fact which is more annoying is that in disconnected state on the status bar it shows that I have network signal on both sims. For checking if I'm effectively connected to network I have to go in "Settings-About phone-Status-Network" and verify the Service state.
Anyone had this problem, and if so, is there a workaround ?
Thank you.
I got similar problems with the SIM card. I've got the international h60-l04 on stock firmware with one SIM slot and the mobile connection fails every time. The Status Bar says there is a connection, but it isnt stable. It switches every few seconds.
I tried to delete the APN, forcing 2G and 3G and havent got a sollten, yet. I first thought it's a firmware failure.
Is there any solution for this? I have the similar problem as well... My model is H60-L02.
Thanks..
I need to solve an issue pertaining to my Galaxy s6 duos. The problem is that sometimes my phone's sim 2 wont work, although it is registered on the network but it won't make a call or send a message neither would it receive a call or message. After i put the phone in airplane mode and switch it back online,then the sim2 starts working. Please help me in solving this issue. What could be causing this problem?
Hmmm set sim 2 only to 2G network and check if it losse connection... (I suspect when phone leaves a 4g area and it has to connect to 3g sometimes stuck at searching ...)
I have an issue that whenever i use mobile data on sim 2 it connects to 2g. I need all the time to go and change from 3g/2g to only 3g then back again to get 3g working. Also noticed that if 3g is not in range it switches to 2g but when its in range it does not automatically take 3g.
I am currently in Italy using a Vodafone UK sim card, it's been working perfectly (apart from randomly dropping complete signal periodically) but now it's just completely died, as in it won't find a signal at all to connect to any network let alone data roaming. I have contacted Vodafone who said there's nothing wrong at their end and the worst thing is it was working perfectly till this evening. So now it sometimes says emergency calls only or just the ring with a line through it as it cannot find any signal at all. I have tried doing manual network operator selection and automatic but still nothing... Any ideas? It's a g9550 128/6gb
Update I now have 3g data but it says "no network connection" and I cannot send receive texts or phone calls, yet I have full data...
@nugget123
Consequences of buying a CN/HK variant....
They usually have network connectivity issues, not surprising. Try removing the SIM card, turning the phone off, wiping cache in recovery, insert the SIM card, and then reboot. Then manually go and search for a network in settings and force it to connect to Vodafone Italy, should work.
It's working now again, I didn't do anything lol it just started working on its own accord! I'm now in Switzerland and all is good. My life is empty without my phone
It always happens to me when abroad. I am on O2. I have to select network manually and pickup different to the one which auto connect shows emergency calls only. Looks like some cells allowing me to connect but won't pass through calls
Do you also have a usa/china variant?
No, o2 UK from Samsung
Hi
I'm having a strange problem with my new A51, with two SIM cards in it.
After an indeterminate time the phone disconnects from cellular network.
It still shows on to the both cards the signal strength, but the phone no longer receives calls or has internet access throw cellular network.
And if I call any of the SIM card numbers from another phone, I get a network message saying the phone is disconnected.
All other functions on the phone seams to be ok. Turning wifi on and off has no effect in reconnecting to the cellular network.
But... If I try to call from A51 to any other number, the phone reregisters on cell network, the call is done and from that point on, all goes to normal. I can receive calls again and access the internet using the cellular network...
I went to the store were I bought it, and the gave me another one, but with the exact same problem.
So I believe is not a hardware problem.
I believe now that It could be a SIM problem, on one or both SIMS, which is odd
A software problem on A51 the need's to be patched, which is odd because it has effect on the most basic feature of the phone, which is receiving calls...
A strange behavior of the phone with my cellular service provider, which is odd too...
I'm trying now with only one SIM to see if the problems happens too...
Can any one suggest any other test or debug to try to clarify this issue ?
Thanks
antoniomch said:
Hi
I'm having a strange problem with my new A51, with two SIM cards in it.
After an indeterminate time the phone disconnects from cellular network.
It still shows on to the both cards the signal strength, but the phone no longer receives calls or has internet access throw cellular network.
And if I call any of the SIM card numbers from another phone, I get a network message saying the phone is disconnected.
All other functions on the phone seams to be ok. Turning wifi on and off has no effect in reconnecting to the cellular network.
But... If I try to call from A51 to any other number, the phone reregisters on cell network, the call is done and from that point on, all goes to normal. I can receive calls again and access the internet using the cellular network...
I went to the store were I bought it, and the gave me another one, but with the exact same problem.
So I believe is not a hardware problem.
I believe now that It could be a SIM problem, on one or both SIMS, which is odd
A software problem on A51 the need's to be patched, which is odd because it has effect on the most basic feature of the phone, which is receiving calls...
A strange behavior of the phone with my cellular service provider, which is odd too...
I'm trying now with only one SIM to see if the problems happens too...
Can any one suggest any other test or debug to try to clarify this issue ?
Thanks
Click to expand...
Click to collapse
My wife have exact same issue with single sim.