[Q] Network connection problem - LG Optimus 4X HD

Good morning
I bought a new Lg Optimus 4X HD a couple of months ago. Phone non rooted running on latest available android OS. A couple of weeks ago, I started experiencing network loss, with resulting missing important phone calls. This is most annoying. I have tried turning the phone off and restarting, switching from WCDMA to 2G but still the same.
Any help please ??

Set it to auto mode. And set network to automaic.

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[Q] Cannot connect to service provider (network unavailable)

Two days ago, out of a sudden my phone stopped connecting to the carrier (Rogers, Canada). I can't call, send text, or use data at all. When I go into Access Point Names, my Xperia Z shows the lterogers.apn installed. If I go into Service Providers I can see a list of Canadian networks, I've tried connecting to the LTE, 3G, and 2G networks of Rogers to no avail. Also, I tried my SIM in a Nexus 5 and it works, I also went to the company and there are no issues with my account at all. Any advice on how to solve this?
same problem
Jotamide said:
Two days ago, out of a sudden my phone stopped connecting to the carrier (Rogers, Canada). I can't call, send text, or use data at all. When I go into Access Point Names, my Xperia Z shows the lterogers.apn installed. If I go into Service Providers I can see a list of Canadian networks, I've tried connecting to the LTE, 3G, and 2G networks of Rogers to no avail. Also, I tried my SIM in a Nexus 5 and it works, I also went to the company and there are no issues with my account at all. Any advice on how to solve this?
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Click to collapse
Hey guys
I'm having the exact same problem! Haver only had the phone a month - previous xperia z replaced due to sudden death - and then this morning I lost my mobile data connection, closely followed by my entire reception. I've repaired/reset the phone multiple times, all per Sony's instructions without any luck. Hoping someone around here has a fix for me!!! At the moment just bashing my head against the wall with this phone and its issues!
Peter
????
Have you solved the problem ? I have same issue , after many others...pls help

[Q] Mobile connection drops and never goes back

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Came to japan 2 days ago and now phone drops mobile network after 10-12 hours of stable connection. cannot reconnect, no restart helps. sim card works ok in other cellphone.
Upgraded firmware yesterday to newest one, but with same result - it worked for few hours, but by morning connection to network was lost and cannot connect back.
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Huawei Ascend P7- Losing GSM Signal After Update To B815

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Since I updated my phone to B815 version I have noticed that my P7 recently very often loses gsm network (like no sim card is inserted), once a day. First I thought maybe sim card doesn't fit well and get the new one from the operator. But still the same issue.
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SM-N950F 4G problem after last dec update

Hi guys, I have an issue with 4G after the last dec update. In 4G/3G/2G auto connect mode, usually the receiving data arrow ( v arrow below the 4G symbol in notification bar) gone missing and thus the connection got lost. Only transmitting arrow is visible (the ^ one). I have to wait for some minutes or turn to flight mode and back to get my data connection back.
In the beginning I don't really sure this issue is caused by the latest update, but after I tried nearly everything, including factory reset which is doesn't help, I think that the update is the problem.
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I had this issue too, it seems 4g connection only got the problem...,
Problem solved, they replace my device
I have the same problem but seems like in a different way, when I got the phone first time I contacted my service provider to activate the 4G service cause it was inactive on my line due to provider's issues, anyway the phone worked on 4G for only 2 days, after that it kept working on 3G, I contacted the service provider many times but they have no issues with my SIM or handset.
I still don't know what is the problem, is it a hardware malfunction? Is it an installed app? Is it a Samsung Update? I don't know!
have tried getting a replacement sim card, I had same problem in the past and they had by mistake sent a sim that was not 4g, got replacement and problem solved
Well, the problem is that it worked at the fist time on 4G so the SIM was 4G not 3G, but I have just comeback from their store, at the first the technical support did something in their system and switched the phone to airplane mode then turn the network ON back and the deice worked on 4G but after a couple of minutes the phone switched to 3G without going back to 4G, then he advised me that this problem either a SIM or handset problem and it's always 90% SIM problem, so we changed the SIM card and the phone is working on 4G for around 30 minutes till now, I hope it will keep working on 4G
2 days and phone is still working on 4G, it was a SIM card problem
Aoa dear
I.have the issue of secure folder as its not there in my cell phone and when i install it from play store and open it but failed to open as it give the option knox mode failed

Question Mobile Data Not Working Redmi Note 10 pro 64mp version

Hey guys, I finally bought a Redmi note 10 pro like 2 days ago and the mobile data was working perfectly with no issues yesterday night. But today, it just stopped working. Nothing happens when I turn on the mobile data in the control center.
I tried resetting the APN and network settings but that did not work. Also tried restarting with same results.
Then, I tried switching between the LTE, 3g and 2g mode and the data started working only in the 2g mode.
It doesn't work when I switch back to 4g , it's such an annoying issue, especially because I haven't even used it for a week now. Can anyone tell me how to get rid of this problem, please?
Thanks in advance.
barryallen3038 said:
Hey guys, I finally bought a Redmi note 10 pro like 2 days ago and the mobile data was working perfectly with no issues yesterday night. But today, it just stopped working. Nothing happens when I turn on the mobile data in the control center.
I tried resetting the APN and network settings but that did not work. Also tried restarting with same results.
Then, I tried switching between the LTE, 3g and 2g mode and the data started working only in the 2g mode.
It doesn't work when I switch back to 4g , it's such an annoying issue, especially because I haven't even used it for a week now. Can anyone tell me how to get rid of this problem, please?
Thanks in advance.
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i had this same issue a few weeks ago. for me the problem was solved by factory resetting the phone.

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