Develop Bugs

No 3G or H Signals

Hi Guys, Had my Desire a couple of days now, contract with TMobile, UK and so far not once have I ever been able to receive a full 3g or H connection. I have travelled a radius of five miles around my home, still no joy. Connects to wifi ok but can only receive g signal out and about,making data and internet painfully slow as to become unuseable. My phone is connected to mobile network in settings. I am seriously considering returning phone under 7 day policy if this persists. Any solutions would be much appreciated.
Other phones with other carriers in my area work ok and according to TMobile web coverage checker states I live in good reception area.
Cheers.

It's possible your sim is faulty happened to my mum when she got her diamond

Joshseadog said:
Hi Guys, Had my Desire a couple of days now, contract with TMobile, UK and so far not once have I ever been able to receive a full 3g or H connection. I have travelled a radius of five miles around my home, still no joy. Connects to wifi ok but can only receive g signal out and about,making data and internet painfully slow as to become unuseable. My phone is connected to mobile network in settings. I am seriously considering returning phone under 7 day policy if this persists. Any solutions would be much appreciated.
Other phones with other carriers in my area work ok and according to TMobile web coverage checker states I live in good reception area.
Cheers.
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Click to collapse
Try a different handset when they get them instore, might be a device fault.

Check your coverage? Make sure phone settings are set to dual and not just GSM only. I get none at work or home whatsoever. But the coverage checker tells me this anyway.

Joshseadog said:
Hi Guys, Had my Desire a couple of days now, contract with TMobile, UK and so far not once have I ever been able to receive a full 3g or H connection. I have travelled a radius of five miles around my home, still no joy. Connects to wifi ok but can only receive g signal out and about,making data and internet painfully slow as to become unuseable. My phone is connected to mobile network in settings. I am seriously considering returning phone under 7 day policy if this persists. Any solutions would be much appreciated.
Other phones with other carriers in my area work ok and according to TMobile web coverage checker states I live in good reception area.
Cheers.
Click to expand...
Click to collapse
Probably a stupid question but have you been on the T-Mobile website and put in your postcode to check the coverage in your area>?
Incase you haven't: http://www.t-mobile.co.uk/services/coverage/street-check/
Hope that helps...

and obviously make sure you have 3g on your account?
I'm with orange, and was told i only had a 2g sim card. it took 3 different customer service people until one agreed to send a new 3g one. Not a problem since.

I had a very similar issue.
For the first 2 days i had my handset, it picked up no 3G or H data ATALL. Like you travelled around in about 5/6 mile radius and got nothing. I called up and cancelled, no one told me why or how it could happen, so i proceeded to cancel.
The next morning, i picked the handset up as i was going out, and to my surprise there it was sitting on 3G. Now the night before, i played with just about every setting under Settings > Wireless & Networks > Mobile Networks, Network Mode/Network operators, always-on mobile connection, the lot. Took the sim out, rebooted the phone. messing with those options, or possibly turning them on or off for a specific amount of time may have affected my phone.
The same day i poped into a T-Mobile store where the woman told me hat it could have been down to the SIM not being fully activated, incase a postman stole it for whatever reason.. However, once i got back home i called T-Mobile up again, to cancel the cancelation, which was easy as pie. I told him what i was told in-store he looked up my account and said nothing should have changed as it should have been good to go from the 26th (i received it 29th). I had also noticed just before calling T-Mobile, that 150 from my mobile phone would not connect to T-Mobile, because of that the guy on the phone reset some stuff on ym account their end, told me to reboot my phone, and since then, i've had 3G/H flawlessly and 150 works without problem.
Maybe give them a call and they can help you. Or play with those settings like mad.

I should say ive had randon data drop outs and disconnections even in good signal areas not sure if its normal or my sim or phone

Hi Guys, Thanks for the input. Problem now solved, TMobile re sent connection settings down to my phone, now solid 3g or H around my area except indoors or close to my house. Now very happy, am now starting to love this phone.
Cheers

[Q] LTE connectivity issues on LTE Galaxy Nexus. Flashing ICS 4.0.4 did not solve.

I bought a new GNex last week and immediately ran into bad connectivity issues when preferred network mode is set to LTE/CDMA. Basically no signal all (3G or 4G), even though I live in downtown Boston where there should be 4G. When I switch my preferred network mode from LTE/CDMA to CDMA, the 3G network works fine with no connectivity issues.
On the phone, Verizon told me that a software patch in May will fix the issue. A staffer at the Verizon store told me that I could already find the patch online and that it would solve the problem... I assumed he was talking about 4.0.4. I flashed 4.0.4 yesterday fully expecting it to solve my LTE connectivity problems but ..... no luck. I still get no signal using the LTE/CDMA setting. I can't even make or receive calls unless I switch back to CDMA.
Do I have a hardware issue? Are other people having the same problem? Should I trust Verizon and hope that the 4.0.5 OTA update fixes the problem? Is there anything I can do about it now?

I am in the same boat as you. Just got a replacement from Verizon but it had a horrible purple tint to the screen so its going back. Didn't even get to see if its better at 4g. I think its a hardware problem as I've read that some people were able to get a replacement phone that actually works.
Sent from my Galaxy Nexus using XDA

My problem is similar. I can get 4G and use it sometimes but after a short time of data usage all my data is cut off until I reboot the phone. No calls, no nothing. I logged a ticket last night and will be calling back today for an exchange.
edit:
I stopped into the VZW store after calling customer care and getting everything all setup. They swapped out my gnex for a new one and so far my experience has been positive. I'm seeing improved signal everywhere and last night the phone didn't drop connectivity once or even get warm. The old phone would get hot to the touch in the upper left of the screen, the new one stayed cool throughout 30 app downloads with 2 bars 4g. Here's to hoping my problem is solved.

I'm getting a similar issue with connectivity dropping ice had this phone for three weeks and the signal drops terribly. At my house because I live on a mountain by a Penn state campus I know there isn't much in the way of signal because of the distance from the towers without interference. But even with being in other areas with 4g I still run into the signal dropping...I thought it was just me so it's good too know I'm not the only one having issues
Sent from my Galaxy Nexus using xda premium

[Q] HTC One M8 dropping data connectivity but showing 4G LTE...

Hey everyone!
I have a stock M8 with T-Mobile and I live in LA. I'm new to T-Mobile so I wanted to ask if this is normal.
My phone will lose data connectivity but the 4G LTE sign will stay on. Spotify will stop playing, Speedtest won't work, but the phone keeps telling me I have 4G LTE.
This happens a lot especially when driving, but today it happened while I was in the drive-through of a fast food place. I had barely moved and yet data was working fine at first, then suddenly "poof" nothing works anymore cause no internet, but the phone insists I have 4G LTE.
Usually turning data off and then on fixes it but not always.
Could it be an issue of switching towers? But then wouldn't my signal drop completely? Why does only data stop?
Anyone else having this issue or do I have a lemon phone I should return?

if you are jumping from tower to tower it may not relay properly. Call tmo and tell them to do a signal refresh. call from a different phone.

Do you have power saving mode on? The reason I ask this is bc it will turn your data connection off when your screen locks.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

I feel your edge
Same here ,
Ever since I bought the m8 it happens to me time to time.
Ive tried dis n reconnect the mobile data or go on airplain mode, but sometimes reboot is quicker.
Hope HTC publish a bug fixed firmware soon

Its a provisioning issue on the towers people you need to call tmo...

This was happening all the time to me on my Note 3 which Is why I upgraded to the M8. Just got it last night and it's happened once. Also, the signal isn't as strong. My Note would hold a lte connection with barely 1 bar. The m8 not so much. Likes to switch between 2g, 4g and lte.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

drksilenc said:
if you are jumping from tower to tower it may not relay properly. Call tmo and tell them to do a signal refresh. call from a different phone.
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I took your advice and did it. Let's see what happens.
Thanks for the help!

cainman said:
I took your advice and did it. Let's see what happens.
Thanks for the help!
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Click to collapse
Did it work? I also just got T-Mobile and live in LA and it happens to me as well. I have a Nexus 5 though.

ainjobizz said:
Did it work? I also just got T-Mobile and live in LA and it happens to me as well. I have a Nexus 5 though.
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It was fine for a couple of days. Today however I had to wait in the car for 1.5 hours for something and was playing Spotify.
Didn't move for that entire period. For an hour it worked fine, then suddenly it did this again where it wasn't receiving data and yet the 4G LTE sign was on screen.
So I guess it didn't really help. I turned data off and on and it restored it, but still... that's not cool.

cainman said:
It was fine for a couple of days. Today however I had to wait in the car for 1.5 hours for something and was playing Spotify.
Didn't move for that entire period. For an hour it worked fine, then suddenly it did this again where it wasn't receiving data and yet the 4G LTE sign was on screen.
So I guess it didn't really help. I turned data off and on and it restored it, but still... that's not cool.
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Click to collapse
Yeah same here. It happens in my house when I'm using my phone in bed and just loses data but it still says LTE and have to either turn off and on data or reset my phone.
Also on my way to work today I was using Spotify the entire drive, which is about 45 minutes, and never lost data but on the way back it lost it about twice. It sucks and hopefully there's a fix of some sort.
Sent from my Nexus 5 using Tapatalk

I think is not phone problem
tmobile signal issue
my z1 and htc m8 sometime both have this kind of issue
they both show I still have lte icon but just can't connect to network
and sometime you must wait like 1-2 mins to reconnect to network

I have had my M8 for a week and have not experienced any issue with data loss. I am in Miami, Fl. If anything I get way better LTE speeds than I have had with any of my last phones( S4, G2, Iphone 5S)

Same issue with my M8.
Full bars LTE signal and sometimes data just stops working. Need to reboot the phone to get it working again. Was thinking about exchanging the phone but it seems like a software glitch...

Dan37tz said:
Same issue with my M8.
Full bars LTE signal and sometimes data just stops working. Need to reboot the phone to get it working again. Was thinking about exchanging the phone but it seems like a software glitch...
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Click to collapse
I don't have this issue but I do have terrible speeds in south Atlanta.
3-5 bars in my home, and download speeds are from 3-6 Mbps down and uplad from 2-3Mbps up even with LTE. I get much better performance on HSPA+
LTE pings are half that of HSPA though

Just to add on here, in my experience this has more to do with the area and likely the towers supporting that area then software or hardware. Another possibility is T Mobile's network in LA is not 100% compatible with HTC is new radio firmware yet. If that's the case some tweaking by t-mobile on the backend would fix this issue straight away.
The reason I say this is because in Las Vegas, Nevada I never have any problem with LTE losing connection, however, this last week I was in Long Beach, CA (LA County) and constantly had loss of data connection while the phone would still displaying a full 5 bar 4G LTE connection.
Reboot or switching to airplane mode would fix it, however, it got to be so bad and happened so regularly, I eventually stopped using LTE entirely while there. The HSPA+ "4G" connection there was still producing around 10 megabits per second download which was more than enough. So, while there I switched off LTE and had no more issues with data connection dropping.
Long story short clearly seems to be an issue with T Mobile Lte Towers in the greater Los Angeles area. Possibly its an issue in other areas as well.

Behold_this said:
Just to add on here, in my experience this has more to do with the area and likely the towers supporting that area then software or hardware. Another possibility is T Mobile's network in LA is not 100% compatible with HTC is new radio firmware yet. If that's the case some tweaking by t-mobile on the backend would fix this issue straight away.
The reason I say this is because in Las Vegas, Nevada I never have any problem with LTE losing connection, however, this last week I was in Long Beach, CA (LA County) and constantly had loss of data connection while the phone would still displaying a full 5 bar 4G LTE connection.
Reboot or switching to airplane mode would fix it, however, it got to be so bad and happened so regularly, I eventually stopped using LTE entirely while there. The HSPA+ "4G" connection there was still producing around 10 megabits per second download which was more than enough. So, while there I switched off LTE and had no more issues with data connection dropping.
Long story short clearly seems to be an issue with T Mobile Lte Towers in the greater Los Angeles area. Possibly its an issue in other areas as well.
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Happening here in South Houston too, but i am using a VZW M8 with Tmo.

I also have this issue, but I'm on AT&T and missing some bands that I need, so I was figuring it was that.

I had a galaxy s5 and had same issue.
So i know it's not the phone
Sent from my HTC One_M8 using XDA

Has anyone found a solution to this problem yet? My HTC One M8 has been losing data connectivity ever since I purchased it last month. It will say I have 4G LTE but I will loose data connection regardless. It's a nuisance. I never had that problem with the M7. My camera on the M7 got a purple haze so T-Mobile replaced it with a refurbished M7. It was the worst thing I could've done. The refurbished M7 would freeze and reboot a lot, until it finally got stuck in a boot loop and I lost all my photos, videos, and files. Would not go into recovery. Then T-Mobile sent me a plastic Samsung S4 as a replacement for that because they were out of the M7. The new M8 has been working pretty well except for the annoying data connection loss everyday. I have to activate then deactivate airplane mode to obtain data connection again. Only other time I ever had this happen was with a certain nighyly rom I put on my HTC HD2, but that was rooted, this is a stock phone, I never expected to have a data connection problem with a stock rom.

I had this problem for ages with straight talk with my old phone just before I bought my M8. Exactly the same issue in that my data would seemingly just cut out randomly after a bit then come back later(switching off/on and/or in and out of airplane would restore it).
In my case, it turned out to be my data settings. I played around with different settings one night and found that different settings finally got rid of the problem for me. Your mileage may vary, but it's an easy enough thing to try.

[Q] Sprint service with M8 - no voice or data with poor coverage

I'm having major problems with my new M8, my home is in a area were I receive fairly good signal were I get 3-4 bars but I'm unable to make calls or get data. I contacted Sprint and they sent me an Airrave for my home which appears to help but basically when ever I get into an area with poor coverage (2-3 antenna bars) thisM8 just craps out! Now the clincher is that in the same areas, my son's iPhone works fine, for example last week I was camping and while my M8 was useless as while it would pick up a signal, it couldn't text, make or receive calls while my son's iPhone (5s) had no problems so basically I just used his phone and stowed the M8 away.
I had the very same issue a year or two ago with my HTC EVO LTE, after complaining to Sprint they reprovisioned it and suddenly it worked fine until last month upgraded to the m8.
Is there any better rom or firmware that can help me with this? As long as it has a good strong signal, it's fine but unfortunately we're I live and travel to, Sprint's coverage is poor but still it's frustrating that it doesn't even seem to work roaming when it picks up other service towers as it warns me I'm roaming and addtional charges may be encurred. I have called Sprint and they deny there is any issue with their service yet all the Sprint stores in my area and the Sprint vendors strongly urged me to upgrade to the iPhone instead of an android phone as they all repeated the same story that in my area, Android phones don't work well and from what I have seen the are right.
Any words of advice or suggestions? I'm still in my grace period were I can return the phone, Sprint technical support is suggesting I return the phone as it might be defective which I might believe expect this one is doing the same as my prior until Sprint did something "special" to the old one which fixed it but now they claim it's not their problem.
In a nutshell, it comes to be a issue with the Android phone type as when this M8 won't work, other Sprint phones do such as iPhone and an older Kyocera flip phone which the Kyocera phone was the one I had to use to call Sprint as my M8 couldn't maintain a voice call connection longer than 10 to 20 seconds before it would drop the call.
I'm totally frustrated, any suggestions?

eBoyDog said:
I'm having major problems with my new M8, my home is in a area were I receive fairly good signal were I get 3-4 bars but I'm unable to make calls or get data. I contacted Sprint and they sent me an Airrave for my home which appears to help but basically when ever I get into an area with poor coverage (2-3 antenna bars) thisM8 just craps out! Now the clincher is that in the same areas, my son's iPhone works fine, for example last week I was camping and while my M8 was useless as while it would pick up a signal, it couldn't text, make or receive calls while my son's iPhone (5s) had no problems so basically I just used his phone and stowed the M8 away.
I had the very same issue a year or two ago with my HTC EVO LTE, after complaining to Sprint they reprovisioned it and suddenly it worked fine until last month upgraded to the m8.
Is there any better rom or firmware that can help me with this? As long as it has a good strong signal, it's fine but unfortunately we're I live and travel to, Sprint's coverage is poor but still it's frustrating that it doesn't even seem to work roaming when it picks up other service towers as it warns me I'm roaming and addtional charges may be encurred. I have called Sprint and they deny there is any issue with their service yet all the Sprint stores in my area and the Sprint vendors strongly urged me to upgrade to the iPhone instead of an android phone as they all repeated the same story that in my area, Android phones don't work well and from what I have seen the are right.
Any words of advice or suggestions? I'm still in my grace period were I can return the phone, Sprint technical support is suggesting I return the phone as it might be defective which I might believe expect this one is doing the same as my prior until Sprint did something "special" to the old one which fixed it but now they claim it's not their problem.
In a nutshell, it comes to be a issue with the Android phone type as when this M8 won't work, other Sprint phones do such as iPhone and an older Kyocera flip phone which the Kyocera phone was the one I had to use to call Sprint as my M8 couldn't maintain a voice call connection longer than 10 to 20 seconds before it would drop the call.
I'm totally frustrated, any suggestions?
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No one?
In searching I found reference in the Sprint user's forums about a issue of multi-band support causing this problem esp in areas were 4g LTE and 3G signal is marginal. The only solution held to any account is to turn off 4G LTE and reprovision the M8 which IMO is rather lame considering it's the top of the line HTC phone but given Sprint's marginal network that might be all that I can do.
Are there any ROM's that radio offer any relief from such?
Sprint's solution at least to provide some help was to send me Airrave which has helped at least at home in that I can at least make phone calls and texts.

Same problem
I'd like some insight on this issue too. I switched from a Galaxy note 3 to the M8 about a month ago, and ever since, my data and cell service is horrible. I never really had any issues with the Note. I have had to turn LTE off and just use 3g to be able to use it at all if I'm not on WIFI. It's pretty frustrating considering that I really like this phone, but I might have to go a different route if I can't get it fixed. My phone is rooted and has viper ROM on it and it didn't change a thing with the custom rom. I don't know what to do, but I'm about ready to jump ship. Any ideas would be appreciated. Thanks.

random loss of signal

I have a 128gb pixel XL with Verizon, which I purchased through verizon as well. Randomly at times just as I'm going to place a call it will start ringing and then disconnect and it will show loss of signal. This has also happened while I was on a call. I'm on the latest firmware as well. Has any body else ran into this issue?

I ran into this last night. I'm a sprint customer with pixel xl ordered from Google. I am on V software. It could just be the fact it's only connected to one 4g band which has low strength in the area we were at during the drop times. Mine hasn't done it since last night might have been in a dead zone

Yes, this has happened many, many times to me. I have a replacement coming that hopefully will take care of it.
Sent from my Pixel XL using Tapatalk

droidiac13 said:
Yes, this has happened many, many times to me. I have a replacement coming that hopefully will take care of it.
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For me its switching from band 13 to band 4.

I don't have this issue at all on TMO but in my area (Chicago) TMO is exclusively band 4. So this would lend some support to the possibility that this is happening when switching bands as I don't ever switch bands and don't have the issue (3 different Pixel devices that I've used since launch and none have exhibited this behavior).

I never had this issue on my Pixel XL, but then when I switched to the Pixel it would drop every single call I made and take 2-3 minutes to get a signal again. This was using the Verizon SIM card it came with. I then got a different SIM card and while it hasn't dropped a call since, I still notice that randomly throughout the day it loses signal where I have never lost signal before. I then wait 2-3 minutes and all of a sudden, it's back to strong LTE signal.
I'm on the fence about RMA'ing it. Anyone have any thoughts on whether or not this is a software or hardware issue? I don't want to be stuck with this problem.
-Collin-

Any resolution to this yet? I've tried swapping the sim to no avail. Running custom kernel and pure Nexus.

I'm on Project FI and sometimes the phone would switch to T-Mob for no apparent reason, which has extremely bad signal. While USC has over 100 times better signal, the phone for no apparent reason would switch to crap. That usually results in no calls being made at all. One trusty remedy is type in a dialer code to switch to next provider.

jnyce87 said:
I have a 128gb pixel XL with Verizon, which I purchased through verizon as well. Randomly at times just as I'm going to place a call it will start ringing and then disconnect and it will show loss of signal. This has also happened while I was on a call. I'm on the latest firmware as well. Has any body else ran into this issue?
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Click to collapse
I also have the 128GB XL (quite black) from VZW. I had absolutely no issues with it until about 2 weeks ago. That's when I started experiencing this same issue. The signal bar goes clear and i lose service for a few moments. In watching the SIM status, I can see where the status will go from "In service" to "Radio off" to "Out of service" back to "In service." I also took screenshots of it doing this. The weird thing for me is that it only happens when I'm at work (I usually have full bars for reception). VZW seems quite baffled at this issue. They have replaced my phone twice. This 3rd phone is doing the exact same thing the other 2 were. I did a chat session with Google Support, and the 1st level tech I chatted with seemed unaware of the issue. My wife has the same phone (silver), and she hasn't experienced this issue yet at all. We were thinking about bringing her phone to my office to see if hers will display the same symptoms mine does here. Nobody else in my area has any reception issues. It's not a huge inconvenience while I'm at work since I have a desk phone. However, it is rather annoying when I cannot send a text or make/receive a call because my cellular radio is resetting itself constantly.
I couldn't post my screenshots since I have < 10 posts...