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..
Related
Hello,
I have a Nexus 5 phone that came with Kitkat a few months back. The phone worked without issues until I decided to update to Lollipop 5.0 (OTA update) at the end of November. Initially the phone started to have troubles to detect the network at certain times - typically "playing" with the settings "Preferred network type" by changing from 4G to 2G, restarting, letting the phone detect the network on 2G mode and change back to 3G or 4G would fix the problem. The issue became more and more frequent until a point where i can not change the "Preferred network type" from 4G to any other type (as if it is "glued" on that setting). At this point my phone does not recognize at all the cellular network but It does seem to recognize the SIM card since i need to enter the 4 digit code to unlock SIM and it displays the network name, just no service.
I've researched the internet and I've tried several things but nothing seems to fix it such as restart mobile, change to airplane mode and back, take out and re-insert SIM card, request new SIM card from operator. The APN settings seem to be OK.
I've noticed that a new 5.1 version just came out and although I was not fully familiar with the process i decided to give it a try (after reading several instructions) and update manually (using factory images posted) and see if that would fix it. The phone is now with version 5.1 and still can't recognize the cellular network - no service. Everything else works fine, including Wi-Fi.
Has anyone experienced such issue after OTA update? The only odd thing I can think of is that I did the initial OTA update to 5.0 in US while i was on travel from Europe, but I can't say if this would in some way contribute to the issue. The mobile is D821 model.
Since I was stuck and mobile is within warranty period, I have sent it to service repair. I would be interested to know ideas of what could be the issue cause.
Sorry for long message, any help would be very much appreciated.
Pedro
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
a few days ago I switched from cm to AEX 7.1.2 on my moto g. Whether that has anything to do with it I don't know.
Anyway last night the phone was working fine then this morning I see that the cell network is disconnected and the phone doesn't see the simcard. However when I put in another simcard from a different network it works normally. I switch back to my sim and it works for about 20 seconds where I can make a call or text then it shuts down again and dowsn't recognize the sim then does again once I have switched the sims but only for 20 seconds. I don't understand what is happening to the phone and why it is doing this. I need help. I have tried picking different network modes from the list after inserting this code #*#*4636#*#* nothing has worked so far. I haven't systematically gone through each one at a time yet and the list is quite long. I haven't seen a list of modes that long before there are over 10 of them from auto prl to scdma etc... Some of them I have never heard of like the scdma one. wif and bluetooth are working ok if that means anything. Thanks for any help
Also when I go into settings the network section is greyed out and under prefered network type it says Invalid Network Mode (-1) Ignore. I only tried changing the modes when this problem arose my changing these modes was not the cause
i've had similar issues, when i skipped using mobile data for a long time, my non-data SIM would dropout intermittently. i changed SIM slots didn't solve it either. other SIM was fine in either slot. just before replacing what i thought was a faulty SIM, without turning mobile data on, i just set the problematic SIM for data. that solved mys issue. however, running mobile data on back on the original setting didnt cause any more issues either.
Hey all, thanks in advance for any advice offered.
For some reason my GS8+ has a greyed out GSM signal bar with an 'x' next to it. As far as I remember the only thing I did was put it to charge overnight. I've tried removing the SIM, still grey, inserting another carrier's SIM (known to be working), still grey, my original SIM also works fine in another phone. Everything else not related to cell service works fine (wifi, bluetooth etc.). I can see the IMEI number in settings as usual.
I've tried resetting the network settings, factory resetting the phone, I've even reloaded the ROM via Odin. No joy.
The phone is pretty much stock, except for the fact that I changed the carrier software from AT&T to Verizon in order to use a particular LTE band. Since I did that, the phone worked fine for several months.
I've only noticed two things odd thus far. After reloading the ROM and downloading a few updates, a game (Empire) appeared from nowhere installed in my app drawer. Also, the Airplane mode icon in the notification shade is light blue, similar to when it's transitioning from off to on. Airplane mode seems to work though, because I can toggle it, and the wifi reacts as such.
I can't search network operators manually (says: Error while searching for networks), changing the network mode does nothing, and none of the secret dialing codes work either. They all say "Mobile network not available". With a SIM inserted, my SIM status menu says, Network: unknown, Signal strength: -113dBm 0 asu, Service state: Radio off.
Sorry if I'm long-winded, but I'd appreciate any assistance at all. Thanks again for taking the time to read.
Hey, I'm having the same problem. Did you find a fix?
Nope.
I had a same issue after I update girlfriend's s7 . The ROM (custom one) was based on newer version but the firmware and BL were old.
I know and I understand that you just put it to charge overnight but you can give a try to flash latest firmware CRED one.
Allso is mandatory to chose the correct country and carrier. Chose the country where you are and Verzion carrier
I have same issue tried flashing other roms. All didn't work
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.