4.4.4 Tethering Stops During Phone Calls - Nexus 4 Q&A, Help & Troubleshooting

I haven't seen any reports of bluetooth or wifi tethering not working while in a phone call but that is what is happening to my nexus 4. I'm using Purity rom with a hybrid radio and have LTE enabled. Whenever I make a phone call, the data connection type letter on the signal bars in the notification drop down disappears. It's like the data connection completely stops.
If I am not tethering and make a phone call, the data connection type letter stays active and I can use the connection with various apps. It only seems to cut out when I am tethering with either bluetooth or wifi. Is this a normal problem? I was thinking I might have to apply the tmobile tethering fix:
http://forum.xda-developers.com/nex...s-4-lte-lte-tethering-hotspot-t2416822/page41
to fix it but wasn't sure it was still really necessary in 4.4.4 or that this problem was even related. I thought that fix was for if you kept being redirected to the upgrade page of tmobile. My plan is truly unlimited 4g (not the 2gb of high speed data then throttling down to 2g speeds) and tethering is included. I'm not being redirected anywhere. The data connection just stops. I was thinking this was a problem with 4.4.4 since it has never happened to me on other versions.

I'm pretty sure that the way Mobile data works makes it impossible to both call and receive data at the same time.

Mine does the same thing on my sprint galaxy note 4. I am rooted using the native tether (unpaid). As soon as I receive a call, tether looses connection and stops.
I'm coming from a sprint galaxy note 2 with the same setup. I've never had this problem in the past. I was able to tether and use other apps during calls. The only difference, from what I can tell, is that my note 2 said "4g",and my note 4 says "LTE". Help please....
Sent from my SM-N910P using XDA Premium 4 mobile app

Related

Incoming calls go to voicemail with active data connection

I've got a T-mobile UK touch plus.
Currently, if I am using the data connection then all incoming voice calls are being sent to voicemail. This occurs with a GSM connection, which is part of the spec and is fine, but also with the 3G connection, which should allow the incoming voice call through. I have spoken to t-mobile and they acknowledge this problem and say they are working to fix it.
Is it likely there will be a fix for this? Is there a radio ROM already available that fixes the issue?
Sorry if this has already been covered - I searched with a pretty wide variety of terms and didn't find anything conclusive.
I have the same phone, same network... and it still rings while i have the "3g connected" symbol (3g with two arrows pointing left and right) showing.
Havent tried while connected to GPRS cuz im not sure how to force it into G mode while im near a phone.
Sorry, I should have been clearer - the phone will ring with an unused 3G connection, but not when data is actually being sent/received. This is the behaviour you would expect from GSM, but the 3G spec should allow voice calls through regardless of data - my Vodafone v1605 has no problem with this. T-mobile say it is the device not the network, I just wonder how likely I am to get a fix for this? It could be a problem with activesync using the data connection quite frequently.
A good way to test it is with google maps, or something that will maintain a constant connection, then call your phone. 3G should put the call through, but it will be rejected to voicemail instead.
FYI to put into GSM mode;
Settings>Phone>Band>Set top option to GSM, leave bottom on Auto
same problem here. but i only expreienced that randomly
i know that gprs can not handle data and voice. but 3g should, right?
Yes, 3G should be able to run voice and data streams simultaneously without any problems. I'm surprised there is not more interest in this because it seems to be a pretty major problem with the device if you cannot receive calls while browsing or otherwise using the data connection.
Me too
I experienced this too. I have an direct HTC Touch dual rather than the t-mobile branded version but I'm using a t-mobile sim. I use Exchange Activesync and am missing calls all the time.
fwiw, i experience the same with a Nokia e61 on 3-AT network with exchange active.
It seems that T-mobile have fixed their network today to allow calls while using data. Bonus.

4G and WiFi Not Compatible?

I had been having problems getting 4G at home and just noticed that if I turn off WiFi, 4G pops right up and as soon as I re-enable WiFi (which connects to my home network) 4G disconnects. Has anyone seen this behavior? When you think about it, it makes perfect sense, and since both are enabled to connect when the other one isn't, the flip-flop is automatic. But it surprised me.
its probably because sprints 4G is based on WIFI. or it just cuts off 4G cus you dont need it anymore
I believe it works the same way as WiFi and EVDO works on older phones. When you turn on WiFi it will use that as your data connection instead of EVDO regardless if it is a crappy WiFi connection.
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Sent via the Sprint HTC EVO
Yeah, it's actually pretty cool, but if you don't know about it, it gets frustrating. I called Sprint customer service and he had me go through the battery out/in routine and go outside and try, etc. So maybe they don't know about it either!
But it makes sense for Sprint, since their data plan is unlimited and they want to avoid network overloading (are you listening AT&T? LOL). The only thing you miss on WiFi are location-based sevices that rely on GPS (navigation, some weather products, etc.).
dkdontforget said:
its probably because sprints 4G is based on WIFI. or it just cuts off 4G cus you dont need it anymore
Click to expand...
Click to collapse
WiFi and 802.16e aren't all that similar. LOTS of differences between the protocols.
Maybe there's some isolation problems on your device as Sprint is using their 2.5 GHz spectrum holdings for their 4G network.
4g network and 3g network both will shut off when enabling wifi. Why have 2 forms of data going at the same time? Its not gunna use both to double your speeds.
You wont lose any GPS features. Turn on wifi and load up Google Maps, it will find your location exact.
When making calls and sending text it uses 1x so you will still receive everything except for MMS. Maybe they fixed it to where you can receive them even when on wifi with the Evo, not 100% sure.
4g and WiFi are both data only connections. You don't need two data connections simultaneously so it is smart enough to auto disable one to save battery. It would also cause routing problems.
Every phone does this LOL When you switch on Wifi they turn off 2g,3g,4g etc because you can't use 2 data connections at the same time.
I'm curious why you would want 4g and wifi on at the same time?
I thought this was pretty common knowledge (on any Android phone)... And I also thought it was done for battery conservation reasons as much as anything else. WiFi's a simpler point to point connection and from what I understand it sucks less power than 3G or 4G which is constantly checking for additional cell towers in case you've moved, etc.
If you're at home or at work w/a stable WiFi connection you should be able to preserve more battery power by using it, within the settings you can even set it so the phone doesn't revert to 3G when it goes to sleep (the default setting IIRC), otherwise it does this and only jumps back to WiFi when you wake it ('till you're out of range anyway).
I agree with all the comments. And if the Sprint Customer Service guys had said, "Hey, you idiot...it's supposed to do that," then I wouldn't have posted. But the fact that he was as stumped as I was prompted me to post (we all know that Sprint gets all it's info from reading these forums...LOL).

Simultaneous Data/Voice

Here is some strangeness that I'd like to investigate.
When I'm on a voice call, data usage is strangely inhibited even when on Wifi. The market will report network errors, and when it does download an app, it will never install the app while on the call. Other apps that use data are either non-responsive or extremely slow. For example, the Engadget app will display text, but not images. As soon as the call is ended, all returns to normal. Again, this is not over 3g/4g, but Wifi enabled and active.
As an additional datapoint, over the same Wifi network, my laptop gets 12.63Mb/s down and 1.36Mb/s up while my Atrix gets 2.4Mb/s down and 1.4 Mb/s up.
Is anyone else having reduced and/or null data traffic while on voice, even on Wifi?
speedtest seems fine for me on WiFi. Not quite the max bandwidth.... my connection is 15Mbit down and it comes in around 9... but not bad either way. Upload bandwidth seems right about where it should be on WiFi.
As for the data use while on call.... i dunno. Never used it when i used my iPhone that i can remember.... and haven't had my Atrix long enough to even think of doing so, so i wouldn't know about that one.
Well I haven't tested data use while on a call, but as for the wifi data speeds...I've never once used a phone that received as fast a wifi signal as this one. My home modem usually connects at around 15.5Mbps. My phone speedtests on WiFi at 13-15Mbps. That's *amazing* for a phone.

STOP taking the Network Mode away AT&T!!!

I love my new Galaxy S III, but once again I have no way to force HSPA+ only. I need this option while my phone sits in my desk all day. If I can turn LTE off then I can save battery life and still get calls/texts/emails.
STOP IT AT&T, JUST STOP IT!!! Your really starting to really aggravate your customers by not allowing them to select their preferred network.
I want the network mode option in mobile networks:
GSM/HSPA/LTE (Auto)
GSM/HSPA (Auto)
HSPA (only)
GSM (only)
STOP taking this off all your phones. Every other GSM carrier in the world allows this except you!!!
I hope ALL developers add this toggle in all the upcoming roms.
Your best bet until this is added/fixed, is to turn on wi-fi mode and turn off the mobile data connection.
That way you still can make calls, and have the wifi as your data, and if its off it wont use as much power as HSPA/LTE.
mastarifla said:
Your best bet until this is added/fixed, is to turn on wi-fi mode and turn off the mobile data connection.
That way you still can make calls, and have the wifi as your data, and if its off it wont use as much power as HSPA/LTE.
Click to expand...
Click to collapse
I think you kind of missed the point...
Let's say your at work all day and you don't use your phone much? Let's say your phone gets 1 bar of LTE and 4 of HSPA+. The signal constantly fluctuates ultimately leading to a dead battery much faster.
Wouldn't it be great to just turn LTE off? That way my phone gets a better signal and uses less battery life. Not to mention, I can still receive calls, texts, and e-mails, whereas airplane mode disables everything.
Wi-Fi isn't available everywhere.
PS: AT&T ain't adding ****, they released their first LTE device in November of 2011 and it also lacked this option.
I think you missed the point as well
The reason for turning on wi-fi is to direct the data connection to something other than the chip used for HSPA/LTE. I'm not looking to use the wi-fi connection as an alternative data source. I'm using it to prevent as much battery drain as possible whenever I am not using the phone.
It essentially IS turning off LTE, but it also is turning off your data, and if you don't have wi-fi then you wont have a data connection, but if you do then you will.
Airplane mode is just taking it a step further and blocking calls as well.
So there's no way to turn off LTE? Even via a 4g/3g toggle from the app store?
916x10 said:
So there's no way to turn off LTE? Even via a 4g/3g toggle from the app store?
Click to expand...
Click to collapse
Nope, that's not how it worked on the HTC One X... even dialer codes would just reset on exiting. LTE stays on for some stupid reason with ATT.
A bet a toggle with root requirements will come out later./
mastarifla said:
I think you missed the point as well
The reason for turning on wi-fi is to direct the data connection to something other than the chip used for HSPA/LTE. I'm not looking to use the wi-fi connection as an alternative data source. I'm using it to prevent as much battery drain as possible whenever I am not using the phone.
It essentially IS turning off LTE, but it also is turning off your data, and if you don't have wi-fi then you wont have a data connection, but if you do then you will.
Airplane mode is just taking it a step further and blocking calls as well.
Click to expand...
Click to collapse
Ok? What if you don't have Wifi and your in a very spotty LTE area with fluctuating signal?
Nevertheless, we need the toggle!!!
What about an APN switcher, would that work?
916x10 said:
What about an APN switcher, would that work?
Click to expand...
Click to collapse
Nope, many have tried this but it doesn't stick. We need AT&T to add the option under mobile networks.
MattMJB0188 said:
Ok? What if you don't have Wifi and your in a very spotty LTE area with fluctuating signal?
Nevertheless, we need the toggle!!!
Click to expand...
Click to collapse
Then it would be best to turn off the Wi-fi and the Mobile Data connection, the only reason I have the Wi-fi on is if I'm in an area that has it (home, work, at&t hotspot) otherwise it is automatically turned off (I think?).
And I agree completely, I would love that feature, but until that time we have to make due with what we have, this is my solution, it isn't perfect but it works for me.
mastarifla said:
Then it would be best to turn off the Wi-fi and the Mobile Data connection, the only reason I have the Wi-fi on is if I'm in an area that has it (home, work, at&t hotspot) otherwise it is automatically turned off (I think?).
And I agree completely, I would love that feature, but until that time we have to make due with what we have, this is my solution, it isn't perfect but it works for me.
Click to expand...
Click to collapse
Yes, but like I said turning off mobile data completely turns off the data connection, whereas with this toggle we can change it to EDGE or HSPA+ only, still having a data connection.
I agree I like turning on edge only when I'm at work and home
Sent from my SAMSUNG-SGH-I747 using xda premium
I'm just hoping developers starting adding the GSM toggle via Mobile networks in their custom roms.
AT&T NEVER WILL!!!
It could be the sim card. I have a SIM card from 2007. The network toggle still works on my Thrill. Someone put a newer SIM card in their Thrill and the network toggle is gone. http://forum.xda-developers.com/showthread.php?t=1326760 post 27
cproaudio said:
It could be the sim card. I have a SIM card from 2007. The network toggle still works on my Thrill. Someone put a newer SIM card in their Thrill and the network toggle is gone. http://forum.xda-developers.com/showthread.php?t=1326760 post 27
Click to expand...
Click to collapse
And you hit the nail on the head. It's actually a mix of SIM Card and Radio. What we need is the canadian version of our radio and we will have it back.
Erm would juice defender not fix this? I still get texts and calls but it turns off my data.. plus its free! ( i bought the ultimate though)
Sent from my Axiom MAXX!!
benefit14snake said:
Erm would juice defender not fix this? I still get texts and calls but it turns off my data.. plus its free! ( i bought the ultimate though)
Sent from my Axiom MAXX!!
Click to expand...
Click to collapse
i guess technically it could since it turns off everything (Except calls) and turns it all back on every 15 minutes to check if anything was received on Att servers.
But if hes waiting for an important text or something, it would come delayed until juice defender decided to retrieve it.
not a bad idea though.
Here's an idea, since your at a desk all day, invest $1.32 on monoprice into a USB cable and charge your phone...
Sent from my HTC One X using Tapatalk 2
doctorTJ said:
i guess technically it could since it turns off everything (Except calls) and turns it all back on every 15 minutes to check if anything was received on Att servers.
But if hes waiting for an important text or something, it would come delayed until juice defender decided to retrieve it.
not a bad idea though.
Click to expand...
Click to collapse
I believe it just turns off 3g and 4g on verizon. My calls and texts are instant. Also, if you buy the app you can change frequency. Mine syncs every hour or two. It may be different with att since verizon handles their 4g in kind of a silly way.
Sent from my Axiom MAXX!!
bloodrain954 said:
Here's an idea, since your at a desk all day, invest $1.32 on monoprice into a USB cable and charge your phone...
Click to expand...
Click to collapse
You mean cycle it twice as much as necessary since AT&T has removed the functionality that's needed? :good:

[Q] Dropping data connection

anyone experiencing data drops particularly when the phone is in weak 4G coverage? It acts like it cant switch between 4G and 3G. sometimes it might take 5 min or more before it will reconnect to data. the phone works fine when it is in a strong signal area. So far I have just experienced this behavior in low signal coverage.
Yesss! Experienced that yesterday. But came back on in 5 min. Usually fixed when u go to settings and switch from the lte to GSM and back to lte but haven't had trouble with it today
Sent from my XT907 using Tapatalk 2
check this thread: http://forum.xda-developers.com/showthread.php?t=1893010
has links to other threads as well
Yours is the first case I've seen where data drops altogether, most have just been going back to 3G too often.
jntdroid said:
check this thread: http://forum.xda-developers.com/showthread.php?t=1893010
has links to other threads as well
Yours is the first case I've seen where data drops altogether, most have just been going back to 3G too often.
Click to expand...
Click to collapse
I am having the no data issue as well! I leave my house (on wifi and supposedly 3G or 4G) and I want to start listening to music immediately in my car but I have no data connection once wifi is off. It can take over a minute or more to get a data connection! I was wondering if this had to do with LTE protocol negotiation, as this is my first 4G phone. However it seems way too slow and its very aggravating. When it does get data back, it is usually 4G not 3G. Toggling data mode on and off doesn't fix it. I have not yet tried toggling between CDMA and GSM.
emkman said:
I am having the no data issue as well! I leave my house (on wifi and supposedly 3G or 4G) and I want to start listening to music immediately in my car but I have no data connection once wifi is off. It can take over a minute or more to get a data connection! I was wondering if this had to do with LTE protocol negotiation, as this is my first 4G phone. However it seems way too slow and its very aggravating. When it does get data back, it is usually 4G not 3G. Toggling data mode on and off doesn't fix it. I have not yet tried toggling between CDMA and GSM.
Click to expand...
Click to collapse
does it only happen when you're leaving wifi and going to cell data?
My experience with data connection was spotty for the first couple days. Going from WiFi into 4G then 3G on the way to work required a reboot to pick up the 3G after I arrived.
I think I may have found my issue.
Settings -> More... -> Mobile Networks -> Network Mode
Was originally set to "Global". I've found that "LTE/CDMA" works better for me.
hope this helps some.

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