Won't reconnect to cecll network after dropped signal - Nexus 5 Q&A, Help & Troubleshooting

Enjoying my new Nexus 5 and was previously using my HTC One that never had this issue. I have very poor T-mobile service in my neighborhood and I have a cell booster in my home. Problem is that since I switched to the N5 if I loose my cell signal for more than a minute or two it will not reconnect. I get the exclamation point in the notification shade saying it lost tmobile signal. 9 times out of 10 the only way to get signal again, even after driving into a better area, is to rescan all the networks again and select tmobile where it re-registers on the network. As of now I ahave to do this everytime I leave my home. Does anyone have a similar issue or a possible solution?

Lookatthemonkeys said:
Enjoying my new Nexus 5 and was previously using my HTC One that never had this issue. I have very poor T-mobile service in my neighborhood and I have a cell booster in my home. Problem is that since I switched to the N5 if I loose my cell signal for more than a minute or two it will not reconnect. I get the exclamation point in the notification shade saying it lost tmobile signal. 9 times out of 10 the only way to get signal again, even after driving into a better area, is to rescan all the networks again and select tmobile where it re-registers on the network. As of now I ahave to do this everytime I leave my home. Does anyone have a similar issue or a possible solution?
Click to expand...
Click to collapse
I have a similar issue, when my phone has low signal and disconnects from the network, it will reconnect and show i have signal strength, i can surf the internet, but cannot make calls or send texted messages, phone shows "cell network unavailable", if i reboot the phone or turn airplane mode on and off it reconnects properly.

Related

Constant network issues

I am on my 3rd device in 3 days. First one was rooted, second one was not. This current one is also not rooted as well.
Unless I am very unlucky, I am going to assume there is a definite issue with the network configuration on this device. Status says I have 3 bars of 4G coverage, however I cannot connect to the internet at all.
Network Signal Info says I am on UMTS with a -93DBM, data is connected. However nothing will load. If I put the phone into airplane mode and then turn airplane mode off the networking comes back online. Speeds are slow though, barely able to perform basic mobile web browsing and watching youtube and such isnt possible. Too slow an too long to buffer.
This doesn't only happen at my house, it happens in other areas as well but it does happen constantly at home. I a not a heavy data user on my account, 1-2GB monthly, so Tmo says they arent throttling me. They have replaced the SIM every time with the devices as well.
Suggestions? If I cannot figure this out soon I am going to cancel my service as I cannot pay for a service and phone that just doesnt work. Tmo seems stumped. They just keep replacing phones since I am within my 14 day return/exchange period.
However, 3 devices all having the same issues sure seems to either prove the phone has an issue, or m general area of Tmo service.
I live in downtown Tempe, AZ.
Your wifi works?
I have the same issue in my house... I have a weak signal and 4g drops down to 2g which is terrible.... 4g downloads are 3Mbps, but uploads are under 100kps
I changed the network mode to wcdma only which helps significantly. 4g drops, but quickly returns...
Give it a try...
I'm having the same issue here in Orlando. I've had 2 phones now (first one was just a bad unit) and both have had horrible network connectivity and reception. I take my SIM card out and put it in my 2 year old MT3G and it gets perfect reception and fast data transfers while the G2x is choking on network transfers.
Go complain here in LG forum. This is software issue.
http://www.lgforum.com/forum/boards/general/lg/topics/g2x-wifi-problems
have full bars but cant download anything. just sits at waiting for data connection.
We really need a baseband modem that works better. My bars goes to zero then to edge and then to 3g constantly. Any time it switches between the connections then the the bars goes to zero and it says there is no conection. Also noticed that 3g connection fluctuates very bad while doing a speed test.
Sent from my LG-P999 using XDA App
ceroglu said:
We really need a baseband modem that works better. My bars goes to zero then to edge and then to 3g constantly. Any time it switches between the connections then the the bars goes to zero and it says there is no conection. Also noticed that 3g connection fluctuates very bad while doing a speed test.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
How are you getting 3g? Unless you meant to say 4g?
himmelhauk said:
How are you getting 3g? Unless you meant to say 4g?
Click to expand...
Click to collapse
T-mobile only has 3g connection avaliable where I live, of course it says 4g on the phone but in reality it is only 3g.
ngerasimatos said:
I am on my 3rd device in 3 days. First one was rooted, second one was not. This current one is also not rooted as well.
Unless I am very unlucky, I am going to assume there is a definite issue with the network configuration on this device. Status says I have 3 bars of 4G coverage, however I cannot connect to the internet at all.
Network Signal Info says I am on UMTS with a -93DBM, data is connected. However nothing will load. If I put the phone into airplane mode and then turn airplane mode off the networking comes back online. Speeds are slow though, barely able to perform basic mobile web browsing and watching youtube and such isnt possible. Too slow an too long to buffer.
This doesn't only happen at my house, it happens in other areas as well but it does happen constantly at home. I a not a heavy data user on my account, 1-2GB monthly, so Tmo says they arent throttling me. They have replaced the SIM every time with the devices as well.
Suggestions? If I cannot figure this out soon I am going to cancel my service as I cannot pay for a service and phone that just doesnt work. Tmo seems stumped. They just keep replacing phones since I am within my 14 day return/exchange period.
However, 3 devices all having the same issues sure seems to either prove the phone has an issue, or m general area of Tmo service.
I live in downtown Tempe, AZ.
Click to expand...
Click to collapse
I wonder if there is an issue with our network in Arizona?? I live in Chandler, and work in Scottsdale. my data times out ALLL THE TIME. Both here at home, and at work. Same with my text messaging. Literally, I do exactly what you do with the "airplane" mode. That's the only way to get my data and text working again (besides restarting).
Here are the issues I posted in the LG Forum:
http://www.lgforum.com/forum/boards/carriers/t-mobile/topics/few-issues-with-g2x#26861
(first issue posted is what you are talking about)
I dont think this is a regional issue. Downtown Minneapolis here, and I cant get it to stay on wifi or Edge/4g for more than a few minutes at a time. G1 has no trouble and shows strong 3g while my sisters mt4g shows full 4g. 4g/E symbol just flickers on my g2x leaving me with no connection. I can connect to wifi fine, but even with wifi sleep set to never it still disconnects every few minutes, and has to be toggled on/off to reconnect. Until toggling it just sits flickering 4g/E with no data connection.
I've never seen my Evo drop a E/4g/wifi connection and struggle to reconnect once in the year I've had it. My g2x does it almost every time I pick it up.
Did you try going into Mobile Networks in Settings and changing the mode to WCDA Preferred or something? That'll stop the flip flopping. That's what I have it on and that's what the phone came with out of the box.Also try Auto in that menu.

Network issue

Hi everyone
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
When the situation is this I can't go to airplane mode, change operator (from settings), the only thing that work is shut down and restart (no fastboot).
Anyone else have this problem?
Maybe is a software bug?
I have the Paul recovery and su
EDIT: More info
That don't happen every time that the phone go to "no network".
I think that happen when it a weak signals and are under 2G network.
there are users with similar issues, I only use 2G networks. If i want to do a bit of browsing i will manually change to auto mode, but other than that i always leave it at 2G..
hopefully there will be a radio upgrade soon that should fix this problem...
I'm suffering from the same behavior!
I'm still with the original ROM with no ROOT so I contacted HTC about it yesterday.
I got today their reply today:
"On your phone, kindly go to settings > mobile network > Network mode, kindly change the network mode and check how the signal will respond to each of them.
-Kindly try a different SIM card, to check whether the issue is with the SIM card or the phone itself.
- Soft reset for the device by pressing the power button for 10 seconds.( Note that soft reset erases any unsaved data.)
- Safe mode(which disables any 3rd party application which might be causing conflicts for your device.) for the device by Switching power on , then press and hold volume down when the quietly brilliant logo appears on your screen, you should see 'safe mode' text written on the bottom left of your home screen.
- Factory data reset, kindly backup your data before proceeding with this step please as you will
lose every data on the phone's memory.
Please go to Settings > storage > Factory data reset > Reset phone."
I haven't done anything yet and I didn't notice the 2G issue you mentioned.
I also haven't got this issue for the last 48 hours but did encountered it twice (!!!) on Sunday while driving across the country.
I'll try having the Network on 3G only and see if that matters although the area I leave in is not with good 3G reception.
GSM is 2G
WCDMA is 3G
i use GSM only unless im using the net
I'm aware to the 2G-3G difference
I'm on WCDMA preferred so my phone tries to be on 3G.
My phone also suffers from the 3G<->H data connection jumps while the desire wasn't having any with the same provider (different SIM of course).
sorry, My bad !!
i understand what your saying now
I cant confirm much as my provider doesnt have 3g signals in my area
If i try to use 3g at my home, I have 0 bars thats why i always use 2g
I switched to 3G only (since I have most of the time 3G and surly wants it for the data rate).
I know I have on my way to work and back places with 2G only but I'll give it a try for the coming days and reply.
BTW, just few minutes ago, while having 3G active for sure (before the 3G only switch when it was still on 3G preferred) I couldn't make any phone call although I had 4-5 bars and data connection was running.
Two days ago I tried to change my sim.
Before I had a cutted microsim, now an original microsim and the issue is still present.
Yesterday I had this problem only in afternoon, not in morning and only where the switch from no network -> 2G -> 3G is very very frequent.
In all other times out from office I never had this issue.
I also changed SIM with no help, stayed in 3G network only with no help and observed that when such a network crash happened, GPS reception is also disconnected!
I had no coverage situations with the 3G only mode which recovered, but what we are facing is a network "crash".
Our situation was escalated to technical support of HTC after I wrote them all the data and they tried to solve it over the emails w/o success.
Same problem for me. I tried only 2G, 2G/3G, only 3G, but no way..same problem..i hope an update can solve this..
I just bought my new One S from T-Mobile yesterday and everything appeared to be okay but now I can barely get it to hold a signal. Forget throwing it on GSM only because it will have signal for a whole few seconds before dropping it. I also am having Wi-Fi issues as well. It just intermittently drops the connection there as well... Not a great start!
whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!
azzledazzle said:
whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!
Click to expand...
Click to collapse
I noticed the same exact issue last night. My phone will go to full signal before dropping whichever connection. I'm just glad this phone can handle staying on 4G without draining the battery like crazy although I can only imagine how much further it'd go with 2G.
Sent from my HTC VLE_U using xda premium
worms said:
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
(...) the only thing that work is shut down and restart (no fastboot).
Click to expand...
Click to collapse
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.
killerm said:
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.
Click to expand...
Click to collapse
that one is also a known bug.
On top of that, WiFi will sometimes stuck at "error" status with no ability to turn it on...
All probably related to the same network chip driver or "Radio"...
I have same network reception problem. When I am in a poor reception area it loose reception all of a sudden and takes a while before getting the signal back. I often toggle flight mode to force network detection. I also think the reception bars don't reflect reality; sometimes it seems I have good 3G reception but cannot surf the web. I fear it is a critical bug. The phone seems unable to handle correctly signal fluctuations and protocol changes (GSM, 3G, HSDPA).
I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?
worms said:
I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?
Click to expand...
Click to collapse
I don't have wifi issue at work with a powerful 802.11n network AP but experienced occasional fake/unstable/disconnect wifi at home with a poor AP which operates on no-one-knows-but-definitely-not-N network. I don't really bother too much cos I can always turn wifi off and on to reconnect.
In terms of 3G/H signal switching problem, yes, a bit annoy especially when playing online game on 3G but accessing internet is fine just need to sometimes wait a bit longer.
I am on international unbranded version in UK.
I've the same problem in France about 3G/2G and wifi on international unbranded version.

Loosing singnal

I have a problem with my Nexus 5 that i would like some help to troubleshoot.
When I'm on cellular network i often have full reception on 4g, when suddenly it drops to absolute zero all of the sudden, data is disconnected and no phone calls can be made during that time. If i wait 10-15sec it is connecting again and up to full strength.
This happens all the time with a few minutes between each time, and has no affect of the location I'm at.
Often I'm just surfing the web when it comes up that this requires internet connection, and notices the bars are gone, and have to wait a few seconds before its back online again.
What would be the best steps to troubleshoot this? Is there any radio log on the phone that i can tail for errors?
Can it be hardware error? Can it be that the simcard looses connection to the hardware?
Im currently running a custom rom, but it was the same with stock when i tried that.
Any help appreciated!
ranarn said:
I have a problem with my Nexus 5 that i would like some help to troubleshoot.
When I'm on cellular network i often have full reception on 4g, when suddenly it drops to absolute zero all of the sudden, data is disconnected and no phone calls can be made during that time. If i wait 10-15sec it is connecting again and up to full strength.
This happens all the time with a few minutes between each time, and has no affect of the location I'm at.
Often I'm just surfing the web when it comes up that this requires internet connection, and notices the bars are gone, and have to wait a few seconds before its back online again.
What would be the best steps to troubleshoot this? Is there any radio log on the phone that i can tail for errors?
Can it be hardware error? Can it be that the simcard looses connection to the hardware?
Im currently running a custom rom, but it was the same with stock when i tried that.
Any help appreciated!
Click to expand...
Click to collapse
Does it do it on other phoness? I've found that my carrier is updating towers in my area. When T-Mobile US was upgrading their network to LTE and changing panels, literally signal that was once there would be gone for upwards of a week.
MrObvious said:
Does it do it on other phoness? I've found that my carrier is updating towers in my area. When T-Mobile US was upgrading their network to LTE and changing panels, literally signal that was once there would be gone for upwards of a week.
Click to expand...
Click to collapse
No i had a Nexus 4 just before, using the same rom and Provider, worked fine then. Have had this issue for about 1,5 month.
Thanks for the answer though
I'm having exactly the same issue. Though for me it's not happening all the time, only when I'm connected to VPN. It's still very annoying because VPN disconnects when the signal drops.
ranarn said:
I have a problem with my Nexus 5 that i would like some help to troubleshoot.
When I'm on cellular network i often have full reception on 4g, when suddenly it drops to absolute zero all of the sudden, data is disconnected and no phone calls can be made during that time. If i wait 10-15sec it is connecting again and up to full strength.
This happens all the time with a few minutes between each time, and has no affect of the location I'm at.
Often I'm just surfing the web when it comes up that this requires internet connection, and notices the bars are gone, and have to wait a few seconds before its back online again.
What would be the best steps to troubleshoot this? Is there any radio log on the phone that i can tail for errors?
Can it be hardware error? Can it be that the simcard looses connection to the hardware?
Im currently running a custom rom, but it was the same with stock when i tried that.
Any help appreciated!
Click to expand...
Click to collapse
Flash the latest radio and see if that helps although I think your custom ROM probably has the latest but you never know http://forum.xda-developers.com/showthread.php?t=2557523

[Q] Network Searching Issues

I am from Bangalore, India using Airtel network.
I am facing an issue with Moto G where mobile is not able to register back to the network once it is kept in No Signal area and then brought back to Full Signal location.
I have network issues at my home and usually mobile has No Signals. But even if I go out and look at the mobile after an hour, I find it not having any signals unless I restart the phone and it gets back full signal.
Is this known issue or is it just me?
khatodankit said:
I am from Bangalore, India using Airtel network.
I am facing an issue with Moto G where mobile is not able to register back to the network once it is kept in No Signal area and then brought back to Full Signal location.
I have network issues at my home and usually mobile has No Signals. But even if I go out and look at the mobile after an hour, I find it not having any signals unless I restart the phone and it gets back full signal.
Is this known issue or is it just me?
Click to expand...
Click to collapse
It's a known issue...quite a few people are having problems with network connectivity, especially after the KitKat update.
Post your complaint on the Motorola forum below so that they roll out an update to fix the issue.
https://forums.motorola.com/posts/48fb0b8150
I have tried airplane mode toggling. It doesn't work.
Reboot is the only option to get network back.
Sent from my XT1033 using xda app-developers app
Would this be the same issue:
Since the last update (last week?) I've had anywhere from 18% to 40% (yikes) "Time Without a Signal" in Cell Standby which is most of the battery drain on my Moto G since the update (normally it's not). I also see a visual indicator where the bars will be completely blank (i.e., 0 reception) but yet if I initiate a call, the 3-4 bars pop back right as the call connects & stays on.
It generally seems to happen when I switch from WiFi to 3G then to WiFi again ---> e.g., at home, then driving, then a coffeeshop. When I'm with someone of the same cell provider they still have the normal number of bars but my phone shows zero bars.
It's really annoying and I've cleared cache hoping it would fix the issue, but it's showing a 9% "time without a signal" again after I had cleared cache.
I have switched to 2G only and its far better....this problem seems to be only on 3G network...
And look like Motorola is doing absolutely nothing about it....

Phone signal showing zero bars

I just got a new xperia z5 and I'm using it on att but my phone signal is always showing zero bars.
I get data but incoming calls sometimes don't go through or go through after 2-3 rings.
The signal shows bars when I make outgoing calls but then disappears quickly thereafter. I thought it was maybe WiFi calling enabled but I don't even see that option anywhere in my phone and this happens when WiFi is off too.
This is a very strange phenomenon and can't find any answers anywhere. There is also a small circle with a line going through it on the notification bar, not sure what that is.
Does anybody know what's wrong ?
Small circle with line indicates "do not disturb" mode is active. Its under sound or notification settings, can't remember which. For signal status, check APN. Also, is your IMEI for this phone the Z5 one or an old AT&T phone? If AT&T has your IMEI for the Z5 it will register on their system as an old phone since they don't have Z5 in portfolio. I had to give them an old IMEI off a LTE device from AT&T because it was showing as a P series phone in the system and I was only getting 3G, no LTE.
Just noticed the small circle was for sounds. Thanks
I am getting LTE which is weird because it just not showing any bars on top but the lte works.
No one else has issues with their signal bar on their xperia z5?
This is really strange and can't figure out what's wrong with it.
No issues with the bars per say but definitely issues toggling networks, especially with 3G prefered mode. When 3G prefered selected I only get mobile data when H+ icon shows next to the bars. 3G, 2G and H don't work! The phone sometime takes up to 10-30 seconds to toggle to H+ and be connected. This drives me nuts! Do you guys experience this as well? Today I got no signal at all (no bars, nothing) for two hours.
Stamina is off and I have proper signal.
SFR France btw.
Try to toggle LTE off.
This sounds like an issue I had with a data only SIM in Japan with my S6, except no 2G network was the cause I think, not sure what would cause it on AT&T.
Sent from my SM-T710 using Tapatalk
It's strange because I show full bars when I make an outgoing call or right before someone calls me, all the bars fill up. But it takes 2-3 rings on their side for it to ring on my phone.
And after the call it goes back to zero bars. But I still have the lte sign there.
Is there a way to update the gsm radio?
Same issue here (Z5 on ATT). I get one bar consistently when the phone is idle with the bars filling up when making calls, sending texts, etc., but I do get full LTE speeds and haven't noticed any other problems... I did look at my account, and the Z5 does show up as an "unknown device".
I tried changing APNs from "Attnextgenphone" to just "ATT Phone" but it didn't make a difference...
Sent from my E6653 using Tapatalk
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
bigneeker said:
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
Click to expand...
Click to collapse
Exactly the same here (FW and baseband). I'm in CO and I do sometimes get full bars outdoors, but it happens randomly... It's almost for sure a problem on ATTs end considering that they don't even recognize the device on their website.
Sent from my E6653 using Tapatalk
Is there a newer baseband that we can upgrade to that will fix this signal issue?
Or de we have to wait till the marshmallow upgrade comes out.
bigneeker said:
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
Click to expand...
Click to collapse
Hi, it's a high probability that you are seeing bar fluctuations as you suggest because your phone is actually changing bands during this time, because the cell tower pushing your call etc doesn't have the signal strength to push LTE.
As for the OP if his LTE/4G shows higher bars as soon as he is using the internet this is a different issue, and strange maybe faulty hardware.
I would recommend you all go somewhere where you know there is good coverage, even with another phone if possible and see if you still have the same issue.
---------- Post added at 07:21 AM ---------- Previous post was at 07:18 AM ----------
bigneeker said:
Is there a newer baseband that we can upgrade to that will fix this signal issue?
Or de we have to wait till the marshmallow upgrade comes out.
Click to expand...
Click to collapse
Mate I am not sure the phone suffers from signal issues, I have had most of the Z series phones, all have the exact same signal strengths for me at various locations, and the phone has better coverage than other manufacturers as well, when I compare to other friends in super low coverage areas
Hey @bigneeker,
Just wondering if the MM update has fixed your signal issue.
For me it hasn't, but if it did for you then it might be a region issue (mine was Singapore, but I flashed the MM update for Germany).
Cheers,
-4Strings
It didnt for me
I noticed it too. Sony xperia z5. I use the quick LTE toggle and when LTE is on, all my bars are greyed out, but when LTE is off and I'm on H+ and 3G then all my bars are lit up.
xslikk7 said:
I noticed it too. Sony xperia z5. I use the quick LTE toggle and when LTE is on, all my bars are greyed out, but when LTE is off and I'm on H+ and 3G then all my bars are lit up.
Click to expand...
Click to collapse
Same here. Also, whenever I lose signal or inexplicably switch to Edge, toggling the LTE switch off and on seems to fix the issue.
I compared the specs of the Z5 and the specific bands/frequencies AT&T uses, and the problem might be the frequency that they use on Band 12... I don't know.
I don't know about European carriers, but since T-Mobile uses a different band for its LTE, then that might explain why this issue is not that well-covered in the US (though I can't confirm that).
Cheers,
-4
Sent from my E6653 using Tapatalk
I'm in Ireland and my signal suddenly went from H+ to Edge then no service. I haven't came across another person with the same issue, my signal goes between H+ and no service most of the time is no service. Tried 5 different firmware and custom rom nothing changed

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