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.
I have tried my sim on another phone and it worked normally. I have tried another sim on my note 8 and it got the same problem.
Oh and this is only a 4G issue. My 3G works normally. And before the update, I never experienced this kind of problem.
Two of my friends got the same note 8 and one of them is also using the same carrier as me, but neither of them experiencing this issue.
Anyone can help?
Thanks in advance
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
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I've got a rooted HTC One on T-Mobile that has worked fine for a couple months. Last week I got a SIM card error a few times and the cell connection was lost until I rebooted, at which point the SIM card error went away and the cell connection (voice and data) worked again.
As of yesterday, my cell connection is not working at all, no bars of service. I do not have a SIM card error displaying in my status bar either. Everything looks fine, just no cell service. It's not a network problem; my wife's phone works fine.
I've tried checking my mobile data settings and pulling and re-inserting my SIM card, but the problem still exists.
Fortunately WiFi works fine so I can still make calls when I have a connection, but obviously this is not sustainable. So... What do I do?
I'm rooted but running the stock ROM. Would it be worth it to flash and wipe? Really seems like a hardware issue to me. Do I have to contact HTC directly about warranty repair/replacement? How long does that process take and is my being rooted going to cause an issue?
Sad
sprocket87 said:
I've got a rooted HTC One on T-Mobile that has worked fine for a couple months. Last week I got a SIM card error a few times and the cell connection was lost until I rebooted, at which point the SIM card error went away and the cell connection (voice and data) worked again.
As of yesterday, my cell connection is not working at all, no bars of service. I do not have a SIM card error displaying in my status bar either. Everything looks fine, just no cell service. It's not a network problem; my wife's phone works fine.
I've tried checking my mobile data settings and pulling and re-inserting my SIM card, but the problem still exists.
Fortunately WiFi works fine so I can still make calls when I have a connection, but obviously this is not sustainable. So... What do I do?
I'm rooted but running the stock ROM. Would it be worth it to flash and wipe? Really seems like a hardware issue to me. Do I have to contact HTC directly about warranty repair/replacement? How long does that process take and is my being rooted going to cause an issue?
Sad
Click to expand...
Click to collapse
Get a sim card replacement and try that
I bought my Droid Turbo about two weeks ago to use it in Europe. I checked all freq and bands of my carrier and I also spoke with a guy who is using Droid Turbo in my country (Poland), all was ok. I got my phone and before inserting the sim card I updated to lollipop 5.1 OTA. After inserting my sim card the phone detected my sim and connected with network (LTE). I thought that everyting was ok untill I started using Droid Tubo in a daily basis. The phone is constantly switching networks. Its loosing lte signal switching to 3g for example, then to gsm. After a while its reconnecting but not always, sometimes I have to restart. I was trying almost everything: wiping from recovery, wiping via fastboot, switiching network connections by hidden menu commands, changing apn settings... I noticed that my problem seams to be similar to the problem which was solved by 21.44.8 update which: "Fixes an issue that could prevent proper switching from 3G to 4G LTE. Fixes issues that could trigger a dropped call, prevent a call from going through, show that no service is available or show that a SIM card is not inserted" - this is quote from motorola update release note. This quote very well describes my problem. After doing almost everything what I could I decided to ask for your help, because Im starting to think that this is a hardware issue. I am looking forward for your help and will be very gratefull for any suggestions.
OddsForever said:
I bought my Droid Turbo about two weeks ago to use it in Europe. I checked all freq and bands of my carrier and I also spoke with a guy who is using Droid Turbo in my country (Poland), all was ok. I got my phone and before inserting the sim card I updated to lollipop 5.1 OTA. After inserting my sim card the phone detected my sim and connected with network (LTE). I thought that everyting was ok untill I started using Droid Tubo in a daily basis. The phone is constantly switching networks. Its loosing lte signal switching to 3g for example, then to gsm. After a while its reconnecting but not always, sometimes I have to restart. I was trying almost everything: wiping from recovery, wiping via fastboot, switiching network connections by hidden menu commands, changing apn settings... I noticed that my problem seams to be similar to the problem which was solved by 21.44.8 update which: "Fixes an issue that could prevent proper switching from 3G to 4G LTE. Fixes issues that could trigger a dropped call, prevent a call from going through, show that no service is available or show that a SIM card is not inserted" - this is quote from motorola update release note. This quote very well describes my problem. After doing almost everything what I could I decided to ask for your help, because Im starting to think that this is a hardware issue. I am looking forward for your help and will be very gratefull for any suggestions.
Click to expand...
Click to collapse
Hello, I have almost the same problem. I recently bought DROID TURBO and i was using it w/o any problem for about a month. and Poland is also my country I did everything like you including update to lollipop before inserting SIM card. Everything with the phone was ok until i tried to change cellular bands in menu to see if it will affect battery life in some way.
Unfortunately my Droid Turbo is now refusing to connect to any network. To be exact: it is logging to my network ( i have checked it on the service hotline of my carrier ) but then after about 3-5 sec. signal bars are greyed and no connection to the network. I've tried three different cards from different carriers and with all a have the same result. Now i cannot use my Droid Turbo as a phone ....... i've tried factory reset, cache cleaning, disabling Verizon apps&services .... nothing... Could someone help me/us, do you have any suggestions ?
kaVetan said:
Hello, I have almost the same problem. I recently bought DROID TURBO and i was using it w/o any problem for about a month. and Poland is also my country I did everything like you including update to lollipop before inserting SIM card. Everything with the phone was ok until i tried to change cellular bands in menu to see if it will affect battery life in some way.
Unfortunately my Droid Turbo is now refusing to connect to any network. To be exact: it is logging to my network ( i have checked it on the service hotline of my carrier ) but then after about 3-5 sec. signal bars are greyed and no connection to the network. I've tried three different cards from different carriers and with all a have the same result. Now i cannot use my Droid Turbo as a phone ....... i've tried factory reset, cache cleaning, disabling Verizon apps&services .... nothing... Could someone help me/us, do you have any suggestions ?
Click to expand...
Click to collapse
Hello again.
The only way i've solved this network problem on non-rooted Lillipop is to install new firmware using Verizon Software Upgrade Assistant for Droid Turbo. You have to run this software and use the rapair button then it downloads new firmware and installs it on your phone.
i have same problem.
just flash last firmware with fastboot
Nexus 6 UK user on EE network. Started to have this problem about 2 mouths ago no signal emergency calls only, reboot the phone still no signal remove sim and put it back in works. This is happening about twice a day. Was running latest stock with root so changed to chroma custom rom thinking it could be radio problem but still happening. Got a replacment sim thinking it was damaged still happening. Phone is over a year old so starting to think hardware problem. Any help would be great.
Cheers
Have you checked your IMEI number?
Sent from my Nexus 6 using Tapatalk
Hi bushako the IMEI sames okay, I have flashed stock MMB29Q on today with no root to see if it makes any different.
sounds like neither a hardware nor software issue, but a carrier issue.
focus1881 said:
Nexus 6 UK user on EE network. Started to have this problem about 2 mouths ago no signal emergency calls only, reboot the phone still no signal remove sim and put it back in works. This is happening about twice a day. Was running latest stock with root so changed to chroma custom rom thinking it could be radio problem but still happening. Got a replacment sim thinking it was damaged still happening. Phone is over a year old so starting to think hardware problem. Any help would be great.
Cheers
Click to expand...
Click to collapse
When you remove and replace the sim card, is the phone on or off? Reason I'm asking is because I'm thinking about a possible problem with the contact pins of the sim card *slot*.
Also wouldn't hurt to check on the sim status next time it stops working.
System settings --> about phone --> (check that baseband version is showing something reasonable, then Status --> SIM Status and check what is under signal strength, cellular network type, service state, cellular network state, and IMEI.
Another thing that you may want to look at, is at System Settings --> wireless&networks/more --> cellular networks --> Preferred network type, and also in Network operators, make sure that you hit the button "choose automatically".
Now, the reason I want you to set it to choose automatically, is because of a glitch I've seen a few times on my service provider here in Canada. If it is set hard to my service provider, occasionally, it will be unable to connect to the network. This is especially the case when I'm *entering* a service area from somewhere that has no service. Note that my service provider uses only ONE MCCMNC, so go figure. Just make sure that you select choose automatically.
You can also try resetting the radio by putting it into airplane mode, counting to 10, and then back to normal.
Hello. About a 4 months ago i have bought from eBay a note 5 at&t version. I live in Greece and my network operator is WIND GR. The phone works fine but from time to time i get an emergency calls only message. And i can't get and do a phone call. If i restart the phone everything goes to normal. Sometimes it goes on and off by itself (the problem).
Have been anyone experiencing the same issue? If the phone is incompatible with my network operator should it not work at all?
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
johnny.goldy said:
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
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Click to collapse
My sim is new. When i purchased the phone i have changed my old sim with a new sim 4g compatible.
It happened again. And i am missing calls like this. I will smash it with a hammer
Go to settings, backup and reset, then reset only network settings, see if any better signal
johnny.goldy said:
Go to settings, backup and reset, then reset only network settings, see if any better signal
Click to expand...
Click to collapse
Done that right now. Tomorrow i will get a new sim card and i will post if anything gets better. Thanks for the help.
Update of the situation. I have changed sim card 2 times. It still happening. My phone runs at nougat now and the problem still appears as before at 5 and 6 Android version. I currently gonna change service provider that has better and stronger signal. From what i have discovered. When the phone looses signal due too poor service provider signal sometimes it can't register to network by itself. If i enable airplane mode and then turn it off it comes back. Any clue? If it's hardware issue what can i change?
Should i have at the mobile networks auto detect or manual and my carrier?
I have S10 bought in UK dual sim. I have two sim inserted slot one UK and slot two foreign sim. They both were working fine until recently.
For the last two weeks both have started loosing connection to network. It is for few seconds 5-10 times a day. Initialy this was with foreign sim and this morning the same happened with the UK sim.
I have tried all options in sim card manager, mobile networks and to restart the phone. Still the same.
I have dropped phone twice but this was some time ago so I do not think this is related.
Anyone have experienced something similar on any suggestions how to fix it?
Many thanks
Sent from my SM-G965F using Tapatalk
Yes, I keep losing data connection. I have bars but no data, I have a U.S. sim and a UK sim. Sometimes turning on/off airplane mode helps, other times I have to restart the phone only to get yet another annoying notification telling me I have no network connection. I just installed the latest update, we'll have to see if it stops.
I was decided to do factory reset as a last resort but I thought that maybe I will start with other options and I did the Reset network settings.
So far all good. For the last two days no single issue with loosing network connection.
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