Database Develop

[Q] HTC One signal drops

Hi all,
I have bought a Htc One M7 handset recently and I have noticed time to time there are No Signals (Limited Service) on it. When I switch off/ switch on or if I turn on the Airplane mode and turn off again, the signals will restore. This is happening around 2 times per day and really annoying. Need to know whether this is a known issue for the model.. I still didn't change the SIM and check. Please help!!!!!
Thanks alot!

Fellow Sufferer
shehanj101 said:
Hi all,
I have bought a Htc One M7 handset recently and I have noticed time to time there are No Signals (Limited Service) on it. When I switch off/ switch on or if I turn on the Airplane mode and turn off again, the signals will restore. This is happening around 2 times per day and really annoying. Need to know whether this is a known issue for the model.. I still didn't change the SIM and check. Please help!!!!!
Thanks alot!
Click to expand...
Click to collapse
I have the same thing
To add some detail for diagnostics see below:
- I travel into London every day and sometimes when signal drops in the tunnels it will never pick back up again after leaving them whereas my old One X did not have this on the same journeys.
- It even dropped out mid call and came up with the sim card icon at the notification bar as if no card inserted (but no selectable notification) first time its happened to this extent.
- Do you have a 4G SIM/connection or are you on 3G like myself? I'm thinking perhaps its something to do with trying to pick up 4G instead and completely disregarding the 3G connection that is available.
- I have also noticed that ever since getting the handset its never had as good signal as my One X which was pretty much always full signal in my normal areas (home, work etc) This may just be the way the handset gauges the signal not the signal itself but something to note anyway.

I'm having the same issue here in the US. It's prolly my only complaint with my phone.
Sent from my HTC One using xda app-developers app

I'm also having this issue but more sever with an all-day no signal. After reboot, I gain signal and I can't make and receive calls.

Try to turn 4G off.

mrcaligula said:
Try to turn 4G off.
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Click to collapse
How does one do that? Having the same problem, both wifi AND mobile network drop off. Wifi comes back on its own after a few seconds, the mobile data connection often comes back (obviously if not on wifi away from home), but the mobile network stays as no signal and doesn't come back, unless I reboot or cycle aeroplane mode. I know there's some problems with touching antenna, but this is happening a lot in the car, when the phone is powered and sitting in a cradle.

bmcconalogue said:
How does one do that? Having the same problem, both wifi AND mobile network drop off. Wifi comes back on its own after a few seconds, the mobile data connection often comes back (obviously if not on wifi away from home), but the mobile network stays as no signal and doesn't come back, unless I reboot or cycle aeroplane mode. I know there's some problems with touching antenna, but this is happening a lot in the car, when the phone is powered and sitting in a cradle.
Click to expand...
Click to collapse
To turn off 4G you go to Settings -> Mobile data -> Network mode and then select "3G / 2G"
don't know if it'll help though, but trying is worthwhile

nkk71 said:
To turn off 4G you go to Settings -> Mobile data -> Network mode and then select "3G / 2G"
don't know if it'll help though, but trying is worthwhile
Click to expand...
Click to collapse
Thanks. The problems seems to have gone with that change. Perhaps it is some system thing kicking me off the network because I don't have 4G on my contract and my phone was trying to get it.
Now, if you can just tell me why my lovely 3-4 bar indoors signal on EE has dropped to 0-1 outdoors (as they deny there is a problem)

bmcconalogue said:
Thanks. The problems seems to have gone with that change. Perhaps it is some system thing kicking me off the network because I don't have 4G on my contract and my phone was trying to get it.
Now, if you can just tell me why my lovely 3-4 bar indoors signal on EE has dropped to 0-1 outdoors (as they deny there is a problem)
Click to expand...
Click to collapse
Are you sure it's not just cosmetic? Try going into Settings->About->Network and see if the signal (dBm) is dropping.
Sent from my HTC One using xda app-developers app

I have it constantly on att - I have to turn on airplane mode and turn it back off to get my network back, I have tried different roms and updates and still the issue is across all roms.

Maybe try this: in your dialer type *#*#4636#*#*. Once the menu is opened, select Phone information, then scroll down to Set preffered network type and choose one of the options (im from Serbia, europe, and I usualy go with GSM auto (PRL)).

Issue with 3g only
Whenever I keep it on 3G, it drops signals for 2 to 7 seconds at random intervals. People often complain that when they call, they get a message that my phone is switched off.. I am probably gonna try another ROM and SIM to see if that helps before dumping this phone forever.

how to solve limited service or loosing service on htc one m7
Hello
it seems to be a hardware fault where the radio is not staying on higher band
it seems to be having issues on 2100 and all umts and hspda or lte networks
however switching back to 2 g can resolve this issue and phone ( hope so) will never lose signals or drop then again
i tried this and for me this works fine so far over 12 hours now no issue
give it a try and see this should work
setting>data>network>2g only
by this you wont have option to use fast internet though but at least you can phone can be used for voice calls messaging etc and also wifi too
I was on stock lolli pop and tried to flash cm12.1 but does not help sort the limited service issue
enjoy and leave your feedback
Edit:
some people cant find 2g in settins>mobile network>preferred network type> lte or 3g only, the solution is go to *#*#4636#*#* phone info>set preferred network type>gsm only( this will put your device into 2g mode)
hope this work

[Q] Poor signal (one bar)

hello, I have a new t mobile htc one I got as gift (never opened). My old phone was an unlocked samsung galaxy nexus using a tmobile prepaid sim. I resized this sim to fit the htc one and everything worked fine( full bars for signal). Problem with this sim is that I could not make wifi calls. So I called tmobile and had them activate the new sim which I got with the htc one (Same prepaid plan, no data). i can now make wifi calls. Problem is once wifi is disconnected I only have 1 bar. If I attempt to make a call all bars raise in full, even if i attempt to check my balance the bars automatically jump from 1 to full and back to 1 bar after i see my balance. Is there a setting i need to change or is this normal? i am worried I may be missing calls like this. (All this happens when the wifi is disabled)
Sorry if the post is confusing, I tried to provide all the details but will be happy to provide anything else if necessary.
Thanks!

stephenjones007 said:
hello, I have a new t mobile htc one I got as gift (never opened). My old phone was an unlocked samsung galaxy nexus using a tmobile prepaid sim. I resized this sim to fit the htc one and everything worked fine( full bars for signal). Problem with this sim is that I could not make wifi calls. So I called tmobile and had them activate the new sim which I got with the htc one (Same prepaid plan, no data). i can now make wifi calls. Problem is once wifi is disconnected I only have 1 bar. If I attempt to make a call all bars raise in full, even if i attempt to check my balance the bars automatically jump from 1 to full and back to 1 bar after i see my balance. Is there a setting i need to change or is this normal? i am worried I may be missing calls like this. (All this happens when the wifi is disabled)
Sorry if the post is confusing, I tried to provide all the details but will be happy to provide anything else if necessary.
Thanks!
Click to expand...
Click to collapse
This happens with me sometimes as well...if it is in LTE mode, the signal bars are less...1 , sometime 2, and sometimes 4... as soon as i make call, the data connection is OFF for that moment, and the signal bars are full....as soon as the calls end, the data connection is activated.... the bars are less again.... try changing the data connection modes from LTE to 3G only and to 2G....and see what happens

mathrania said:
This happens with me sometimes as well...if it is in LTE mode, the signal bars are less...1 , sometime 2, and sometimes 4... as soon as i make call, the data connection is OFF for that moment, and the signal bars are full....as soon as the calls end, the data connection is activated.... the bars are less again.... try changing the data connection modes from LTE to 3G only and to 2G....and see what happens
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Click to collapse
Awesome this helps. Thanks. In my situation I have no data plan setup. No need for any internet on my phone atm. So all I use this phone for is calls and an occasional sms. Will I have a longer battery life if i disable lte and have it on gsm only? Would the call signal drop?

stephenjones007 said:
Awesome this helps. Thanks. In my situation I have no data plan setup. No need for any internet on my phone atm. So all I use this phone for is calls and an occasional sms. Will I have a longer battery life if i disable lte and have it on gsm only? Would the call signal drop?
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Click to collapse
i am not sure, but when you dont use Mobile Data on your HTC one, there is no need to select the LTE mode.... you can select the other option always. and it might save battery as well....."might"

You will definitely save on battery if you switch to 2g if you don't use data at all. Switching to 3g frequency takes more battery even when there's no data connection.

I switched it to gsm only then disabled mobile data. Full bars now. This should work. The next option is wcdma which i dont think tmobile uses.

Moto X on AT&T MVNO - signal strength drops to 0 briefly - phone or carrier problem?

Moto X on AT&T MVNO - signal strength drops to 0 briefly - phone or carrier problem?
I've got the Moto X GSM developers edition with Kitkat 4.4 unlocked and rooted. I am on H2O wireless (AT&T MVNO).
Several times a day, I'll hear a quick beep in my bluetooth headset alerting me to the fact that I have no mobile signal. I look at the phone and I have zero bars for maybe 30 seconds and then it goes back to (usually) 4 bars. This happens at home, where I always seem to have 4 bars except for these incidents, so it is not like I am in a marginal signal area and it is going between 1 and 0 bars. Is this likely a problem with the phone or with the carrier? I switched from PagePlus (Verizon MVNO) when I got the Moto X, so I don't have a history AT&T with another phone to look back on. I never had this happen when I was on Verizon towers with my previous phone (Droid 2 global).
I don't know if the loss of signal is real or a bug in reporting the signal strength because it doesn't last long enough to try and make a call. I haven't had any dropped calls, but I don't spend a lot of time talking, so the odds of this happening during a call are low. Still it is a bit of an annoyance and if the loss of signal is real, it will eventually happen during a call.

There may be nothing wrong, the phone may just be scanning for other bands that do not exist in the area. 30 seconds does seem like a long time though. I know when I use AT&T firmware with a different provider in Canada my phone will do exactly the same thing after a fresh firmware install, however after it happens a few times it stops and holds the signal fine. I am guessing it is building a database of what bands and protocols are available in the area. It might not hurt to do a full reset of the phone.

Steve-x said:
There may be nothing wrong, the phone may just be scanning for other bands that do not exist in the area. 30 seconds does seem like a long time though. I know when I use AT&T firmware with a different provider in Canada my phone will do exactly the same thing after a fresh firmware install, however after it happens a few times it stops and holds the signal fine. I am guessing it is building a database of what bands and protocols are available in the area. It might not hurt to do a full reset of the phone.
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Click to collapse
That doesn't sound quite like what my phone is doing because you say it happens a few times, then stops. It happens to me every day and I haven't recently installed firmware.
Anyone else having the same issue as me? On a Moto X or any other phone on AT&T?

johninor said:
That doesn't sound quite like what my phone is doing because you say it happens a few times, then stops. It happens to me every day and I haven't recently installed firmware.
Anyone else having the same issue as me? On a Moto X or any other phone on AT&T?
Click to expand...
Click to collapse
This happens to me on AT&T on the GSM (T-Mobile) model sometimes too. It usually happens after a phone call is hung up and it's switching from HSPA back to LTE. Sometimes it's instant, other times it's 10-30 seconds.

Frequent Random Network Drops

I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?

sh0nuff said:
I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?
Click to expand...
Click to collapse
check in settings in network and set your network to the one you use , like gm/wcdma /lte , maybe your phone is strugling to find 3g or 4g , try it , who knows it might solve the issue , ty

Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
Is there some sort of utility that I can use to monitor the network activity to see how frequently it drops, and for how long? I've looked into ones on Play but they don't seem to have a history, just something that shows what data up and down is currently being reported.
Sadly the only Sony store in my city (and I think the country - Canada) has recently closed for good, so I'm not sure how to go about warranty repairs...

sh0nuff said:
Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
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Click to collapse
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.

kopsis said:
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.
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Click to collapse
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi

sh0nuff said:
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi
Click to expand...
Click to collapse
Yes, it seems to be a complete loss of the mobile connection. When I wake the phone I see gray bars and a red X on the signal strength indicator. Within seconds the phone re-acquires and the indicator goes to 2 or 3 bars. I have also seen it happen with wifi active. The frustrating part is that it doesn't seem to do it often enough to troubleshoot. I'll notice the problem maybe a couple of times a month and there's nothing obviously different about my usage patterns in those instances.

Mine does it at least a dozen times a day. I can only assume this as I frequently miss calls and at least 3-4 times a day I see it happen. =(

Same Problem
Randomly I have no connection at all but after a few seconds everything wents back to normal. Did not have this problem with T-mobile in Germany but with with O2 I have. With T-mobile I had LTE but with O2 I don't, so I guess that's the reason.

Interesting... I've disabled LTE and now have it on 3g/GSM. We'll see how it works moving forward, and I'll post again in a week. Stay tuned.

Service Providers
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.

realTobbse said:
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.
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Click to collapse
Interesting.. I have LTE as part of my network and plan... But once I made changes to the settings as I indicated, I no longer receive the network drops I originally experienced.. I might just be missing the alerts, but it seems fixed... #crossedfingers

[Q] Cell reception indicator constantly flips between "no reception" display and bars

[Q] Cell reception indicator constantly flips between "no reception" display and bars
I'm using the Xperia Z3 Compact on TMobile's network in the US.
About 1/4 of the time when I turn on the display the phone indicates that it has no cell reception:
1) The phone shows no bars of reception, and a red X over the bars
2) The lock screen reads "Emergency calls only"
However, within a second or two the phone appears to acquire an excellent signal and I get a full 3-4 bar display. All of the areas in which I use the phone are marked as "Excellent" on TMobile's coverage maps.
This also happens intermittently while I'm using the phone. I'm not sure if it's actually losing the signal or if it's just a software issue. I've never had it drop a call or cut out while I'm talking.
I'm getting only acceptable battery life from the phone (about 25% at the end of the day) despite light usage and conservative app installation, even though this phone has a reputation for excellent battery life. My theory is that this might have to do with the phone constantly disconnecting from the network and then having to re-aquire a signal.
Anyone else had this experience with the Z3C?

Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps

sh0nuff said:
Hey mate.. I posted the exact same issue a couple of months back. I was experiencing this exact same issue.
I've had my LTE disabled for about a month now and haven't had a single drop.
Not sure if LTE is a dealbreaker but since my device is a business line, I can "suffer" with better battery life and slower internet if I'm not dropping calls. I've considered trying a ROM with updated radio firmware but figured I'd wait to see what the current Lollipop update does ('ll re-enable LTE once I install it and see if it repeats the same behavior) for my phone before trying a 3rd party system.
Hope this helps
Click to expand...
Click to collapse
Thanks! Really gratifying to know that it's not just my device. Seems like there's a strong possibility this is the issue since I'm on a MVNO that's only been on this LTE network a few months. I've flipped the device into GSM only mode and we'll see if it helps.

Dumb question how do i flip it into gsm?

qylie said:
Dumb question how do i flip it into gsm?
Click to expand...
Click to collapse
Settings>More>Mobile Networks>Preferred Connection type> GSM only
Sent from my D5803 using XDA Free mobile app

Thanks!!!

I'm having the same issue as you have described. For now I've set the phone to 3G prefered. Looks instantly better. Signal strength is also better.
Provider: Simyo (KPN network) - The Netherlands
Edit - Issue solved:
I switched from the Lollipop Baltic ROM to the Lollipop KPN carrier ROM for The Netherlands. The switching is gone for me. Battery life drastically went up.

Any update on this? I just started experiencing this issue out of no where about 2 weeks ago. I'm not rooted or anything, can't afford to due to job security requirements and such.