Temporary dialer disconnection when 4G is on - Nokia 8 Questions & Answers

Good day, guys. I have a problem. After update to 8.1 I have an issue with recieving calls, when some people call me and 4G mode is on (4G network type is enabled in mobile network settings) sometimes they can not dial to me, it seems like my phone is turned off and there is no signal. If I change mobile network mode to 3G, there is no problems. Also when people can't call me, I can make calls to them and there is no problems with connetion and mobile data. (connection level is full).
It looks like there is some energy saving mode of radioband module and It doens't work properly.
So I've changed SIM-card and changed the mobile operator to another, the problem still exists.
In the safety mode, the problem still exists too.
Also factory reset from recovery menu (wipe data) didn't help.
Is there any fix of this problem? I can't redownload the firmware with OST because of error. Thank you a lot.

I have similar problem, did you find out how to solve it?

Related

[Q] Weird signal problem.

My phone is connecting or something posting through mobile network every few hours and I dont know why. I have disabled 3G and data over mobile network and I hear that noise of mobile signal in my speakers every few hours. Anyone any suggestions? I have latest CM10 nightly(I had more of them and same problem) and I also tried Slim Bean still same problem.
Update: Maybe I found solution in Settings / Data usage / Options(Left button) / Restrict background data.... I think it should be easier to find this important options.
Update2: It didnt solve my problem any ideas?

Mobile data switched off when reception is poor, doesn't turn on again until reboot

My carrier's 3G reception is very poor in some areas in the building where I work. Quite often I lose internet when the line switches to GSM mode, but the most annoying thing is the internet remains permanently disabled even when 3G is available again. Only a reboot fixes this.
I've tried disabling and reenabling mobile data, disabled stamina mode, changing to either WCDMA or GSM only modes, but this problem keeps happening. I'm thinking of switching carrier as a last resort, but I wonder if anyone else have this issue and know how to fix it? My phone's bootloader locked, on eXistenZ ROM.
i had the same problem after modifying the /system/etc/fast-dormancy/fd_custm_conf.txt file to reduce the number of fast dormancy wakelocks. any chance you used the same tweak as well?
I didn't tweak fast dormancy. do you still have this problem?
Not sure what I did because now this problem happens far less often. If it happens, it can be fixed by turning on airplane mode for 2-3 minutes.

[Q] My mobile data disappears until I reboot

Hi XDA, I bought a Z3 Compact a few days ago, and yesterday this weird bug occured for the first time. The data is simply turned off suddenly when I check my phone, and nothing I do will turn it back on.. Toggling mobile data back and forth, searching for networks and clicking different ones, downloading internet settings again, airplane mode on/off etc. - nothing works except rebooting the phone, and then the data works again until next time it messes up. It did it again last night.
I googled the issue, and it seems some S4 users have had same problem with Android 4.4.2? Link to the issue is found here http://support.t-mobile.com/thread/70532
Apparently they report that you cant make calls either when this bug occurs, even when the phone says it has bars, however I havent tested regular calling. I will next time my device bugs out.
Has anyone experienced something similar and/or is there any way to fix it?
I had the same issue but only when Stamina mode was enabled. After a few hours I would lose mobile data and only a reboot would restore it. I cleared data for Eco Mode Controller, rebooted and the problem hasn't reoccurred since. Not sure if this helps or not.
rec71 said:
I had the same issue but only when Stamina mode was enabled. After a few hours I would lose mobile data and only a reboot would restore it. I cleared data for Eco Mode Controller, rebooted and the problem hasn't reoccurred since. Not sure if this helps or not.
Click to expand...
Click to collapse
I don't have it enabled, but I will definitely try clearing data for eco mode controller.
Also, I figured out that I can still make calls even when the data doesn't work. So it is not the same issue that is described in the link.
I think you have the same issue as described in this link? https://talk.sonymobile.com/t5/Xper...sappearing-in-Stamina-mode/m-p/845155#U845155
I have had stamina mode on however, so I will try it anyway.
I believe I had the same issue as you: cell signal dying after a while, but more often when cell reception was likely to be cut off (e.g. poor service areas or stamina mode). I'm also on T-Mobile in the US.
You can try the troubleshooting steps I took in this post, but what ultimately ended up working for me was a nano-SIM swap.
If you try all of the above and still haven't managed to fix it, I would suggest a phone swap.
Edit: typo
ahrex said:
I believe I had the same issue as you: cell signal dying after a while, but more often when cell reception was likely to be cut off (e.g. poor service areas or stamina mode). I'm also on T-Mobile in the US.
You can try the troubleshooting steps I took in this post, but what ultimately ended up working for me was a nano-SIM swap.
If you try all of the above and still haven't managed to fix it, I would suggest a phone swap.
Edit: typo
Click to expand...
Click to collapse
But if the sim card was the problem, I wouldnt be able to make calls right? I mean, there must be a connection since I can call.
Also, the phone doesn't give me a notification with "No sim card" or something similar..
But then again, weird errors can happen.. I will order a new sim card if the problem persists and I am unable to find a solution
Zylian91 said:
But if the sim card was the problem, I wouldnt be able to make calls right? I mean, there must be a connection since I can call.
Also, the phone doesn't give me a notification with "No sim card" or something similar..
But then again, weird errors can happen.. I will order a new sim card if the problem persists and I am unable to find a solution
Click to expand...
Click to collapse
You might be right. My issue was signal, then no signal. I never got a "no SIM card" message, however.
Best of luck!
I am now getting this issue without using Stamina mode. I am currently sat at work with no data, same thing happened yesterday. It worked fine this morning but at some point it has gone and only a reboot will get it back. I am missing important notifications because of this.
It seems to happen when I move around the building and the signal goes weak. The About -> Status page currently shows:
Signal strength: -79 dBm 17 asu
Mobile network type: HSPA
Service state: Voice: In service - Data: In service
Mobile network state: Disconnected
This is so frustrating.
---------- Post added at 12:43 PM ---------- Previous post was at 12:36 PM ----------
Just rebooted, data is back and now I see this in About -> Status:
Signal strength: -75 dBm 20 asu
Mobile network type: HSPA
Service state: Voice: In service - Data: In service
Mobile network state: Connected
Time to seek a refund.
I never got this issue fixed, even after repairing the device using PC Companion so I've sent it back to Clove for a refund. I think Bluetooth may have something to do with it though: I use BT in the car and have a Fitbit connected. I spent a day with BT disabled and the issue did not occur. I then went for a run with BT headphones connected and when I got back I had no mobile data again.
So goodbye Xperia Z3 Compact.
Anyone managed to fix it?
Hi!
I have the same issue. I use BT in my car too, but I think I lose it event without BT sometimes..
Anyone managed to fix it?
Just wanted to pitch in that I have the same problem (Z3 here).
I was going to return the phone but reading that the new lollipop update will arrive next week I think I'll hold out and see if that update won't fix it.
/Edit
See if Paul Wheeler3's post here works for you , I cant paste the link since I have posted 10 times here... but google with his name, and search for Xperia Z3 Losing Data Connection. should be one of the top hits.
Nischi85 said:
See if Paul Wheeler3's post here works for you , I cant paste the link since I have posted 10 times here... but google with his name, and search for Xperia Z3 Losing Data Connection. should be one of the top hits.
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COPIED and PASTED for your ENJOYMENT:
I thought I’d share a quick tweak that applies to most of Sony’s Xperia Android phones. If you’re on the Three network and travel around a fair bit you’ll notice that occasionally you’ll lose the data connection and it won’t always come back until you reboot the phone. Very annoying.
This happens because Three still have some 2G roaming agreements in place for areas they don’t have coverage. That doesn’t include data roaming however and a lot of devices (including the iPhone still) have trouble with this.
The way to fix this is to set the ‘Network Mode’ to ‘4G/WCMA’. Annoyingly you can’t set this in the ‘Mobile Network Settings’ section, you’ll need to go into hidden service menu to get to the setting. From the dialler, type this:
*#*#SERVICE#*#*
'Service' is typed as you would on a T9 predictive text keyboard, so thats one key press per letter.
Once your into the service menu, choose ‘Network Mode’ and then within this menu choose ‘LTE_WCDMA’.
You’ll see the radio stack reboot (so you’ll lose your connection while it does this).
No longer shall you experience the annoying ‘data never comes back’ issue.
It goes without saying that changing this setting is at your own risk.
You should manually set your network to WCDMA/GSM first. Then do as suggested above.
The problem is that the mode will automatically fall back to whatever is set in the UI if you even load the Mobile Networks control (by simply selecting the menu item in settings). If you leave it stock, then going into mobile networks will cause it to "fallback" into the failure mode. But if you manually set it to WCDMA/GSM then going in to Mobile Networks will only cause it to fallback into HSPA+, which isn't bad.
I'm getting this exact same issue but on my galaxy s5 only a reboot will resolve it I wonder if it is also in relation to 2G networks. I am on EE and the just recently sold to BT could be that their infrastructure now includes 2G coverage with no data for some places? Soon as I reboot back on 4G. Looked in settings and annoyingly only auto ones are 2G/3G/4G and 2G/3G there is no 3G/4G auto connection type guess I need to find a Samsung secret menu?
cpurick said:
You should manually set your network to WCDMA/GSM first. Then do as suggested above.
The problem is that the mode will automatically fall back to whatever is set in the UI if you even load the Mobile Networks control (by simply selecting the menu item in settings). If you leave it stock, then going into mobile networks will cause it to "fallback" into the failure mode. But if you manually set it to WCDMA/GSM then going in to Mobile Networks will only cause it to fallback into HSPA+, which isn't bad.
Click to expand...
Click to collapse
I am on a tmobile z3 and it says N/A no matter which mode I put it on in settings and then going to that secret menu. Please help. I'm on stock android 5.0.2 lollipop. Thanks!
still have the same bug with my Z3 compact, Android 6.0.1 and it is very resistent, even secure mode without 3rd party Apps, new SIM Card and new mobile phone (but with restored Sony Backup) helped. Vodafone germany and Sony Customer Care are idealess.
Last try will bei leaving SD card out and a reset with Sony companion without restoring backup

No cellular network, no phonecalls possible

hello,
i´m having massive cellular network problems for a while now. The Z2pro won´t find cellular networks more often and even if i´m connected to a network, i´m not able to call anybody or receive calls. Everytime i try to call someone, it resets my network connection, like it would switch Airplane mode on/off. i first thougt it´s an provider problem but my mobile data somehow works fine and i´m able to call/write via WhatsApp.
Did anybody encounter similiar problems?
Phone is on 2.5.335 ST and rooted. I have no "signal booster" apps installed.
~Tuerkay
Someone tell me that they cant reach me with phone, I try to call myself with another phone, but z2 pro is normal.
Yesterday morning, the z2 pro screen off about 8 hours, I test it again but failure in same place and same network.
I turn on the screen, the signal is full and test its call and received function, all thing is normal.
I think, the problem may be background task killed.
Facing the same problem.

Question Calling issues with both VoWiFi and VoLTE

I am having issue when calling (outgoing) to any person over WiFi or LTE. The call won't connect at all but the other person's phone will ring and I won't hear a thing. I have to enter flight mode for few seconds, disable flight mode and then I will be able to make calls again.
What could be the possible issue? This has become a very bothersome and I am suspecting that some users are also unable to reach me at times. I tried resetting the phone, did a network reset, and played with call over WiFi and LTE settings. Nothing seems to fix the issue. Is this a common problem with Vivo devices?
Any work around is appreciated.
TIA.

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