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.
Click to expand...
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

Phone loses reception, restart to get it back?

Love love love my Desire. Few little problems here and there (Music Genre, Battery life etc) but the one main thing that is really bugging me is, that if I lose reception (I live in a area with lots of valleys), it will never regain reception even if I enter a town centre or City. I always have to either switch Airplane mode on then off. Or more often than not, turn the phone off completely and switch it back on, where it then finds reception straight away.
Anyone else getting this?
I'm on Vodafone and using the latest Generic Rom

I'm not sure if this is the same problem, sometimes i
have no data connection (i guess 3x since i have the phone).
I see some bars but no Edge or H (3g) sign and obviously i have not data connection ... dunno if the phone part work, will try next time.
anyway, i could get the data connection back by switching from 3g to GPRS mode and later back. You can see in the bar that for a very short time all GSM connection is gone ... i guess it's similar to switching to airplane mode ...
Maybe it's worth a try for you, maybe it's totally useless
btw: i'm living in a city, the nearest celltower is just a few meters away.

I have similar issues but I had the same issues with my ADP, not just the Desire.
Inside my University buildings I lose reception very often and the GSM connection always reestablishes itself but not the Data connection. When I reboot my phone the same thing happens. There is a good chance that the Data connection wont initialize and I have to switch to Airplane mode and back to get the Data connection. Really frustrating sometimes :/
Another very, very annoying problem I have is that sometimes it shows a data connection but it can't be used. It shows E/3G/H but whenever I start an app which uses data, it always times out.
Another problem, which is probably not fixable, is that my Phone likes to jump between E/3G/H quite a lot and every time it does do so, it seems like the app using the data connection has to reestablish the connection. This led to quite some timeouts when it was constantly jumping around.

I get poor 3G reception on my desire ( orange UK ) , have to go outside in the rain to get a better reception

CharlieCharlie24 said:
Love love love my Desire. Few little problems here and there (Music Genre, Battery life etc) but the one main thing that is really bugging me is, that if I lose reception (I live in a area with lots of valleys), it will never regain reception even if I enter a town centre or City. I always have to either switch Airplane mode on then off. Or more often than not, turn the phone off completely and switch it back on, where it then finds reception straight away.
Anyone else getting this?
I'm on Vodafone and using the latest Generic Rom
Click to expand...
Click to collapse
vodafone have been getting worse and worse of late, I travel from surrey to london (central) every morning and was getting the same thing. I was even getting this all the time with a blackberry 9700, It is not the phone as I tried tmobile sim card in the same areas and didn't have the problem. Only 8 months to go of my contract which I will not be renewing.

I have an issue where if I use wifI at home for an evening, when I switch wifi off, the 3g data connection does not re connect. If I re boot, it connects immediately.
Sent from my HTC Desire

xxnoelziexx said:
vodafone have been getting worse and worse of late, I travel from surrey to london (central) every morning and was getting the same thing. I was even getting this all the time with a blackberry 9700, It is not the phone as I tried tmobile sim card in the same areas and didn't have the problem. Only 8 months to go of my contract which I will not be renewing.
Click to expand...
Click to collapse
the sites around the areas might actually be down try calling and checking that out

CharlieCharlie24 said:
... if I lose reception (I live in a area with lots of valleys), it will never regain reception ... I'm on Vodafone and using the latest Generic Rom
Click to expand...
Click to collapse
Assuming Vodafone uses Sim cards. I just had the same issue, here in the states with AT&T. I thought my Tilt was at fault so I borrowed a little Samsung flip phone and put my Sim in it but it did the same thing.
I had AT&T replace my Sim card and so far, 48+ hours, it hasn't happened again on my Tilt.
Might be worth a try.

holmanm said:
Assuming Vodafone uses Sim cards. I just had the same issue, here in the states with AT&T. I thought my Tilt was at fault so I borrowed a little Samsung flip phone and put my Sim in it but it did the same thing.
I had AT&T replace my Sim card and so far, 48+ hours, it hasn't happened again on my Tilt.
Might be worth a try.
Click to expand...
Click to collapse
Thanks, might try changing the Radio version and see if that helps first, if not will give Vodafone a call.

traspler said:
I have similar issues but I had the same issues with my ADP, not just the Desire.
snip
Another very, very annoying problem I have is that sometimes it shows a data connection but it can't be used. It shows E/3G/H but whenever I start an app which uses data, it always times out.
snip
Click to expand...
Click to collapse
I have this same problem at home (in South London) with my desire and had it with my G1 too (both on T-Mobile). I'm pretty sure it's a network issue rather than android or the phone. I constantly have 3 bars of H signal and during the daytime it's blazing fast but after around 5pm and all day at the weekends it becomes basically unusable with network timeouts more often than usable connections. I work 40 miles away down south and I get a consistently fast data connection down there with none of the time out problems.
I also tried using a t-mobile sim in a 3g dongle and had the same issues, it was great during the day and incredibly slow with loads of timeouts in the eve. It reminds me of when unmetered ISPs first came out and couldn't cope with the amount of bandwidth being used, I'm pretty sure this is a similar capacity problem in some areas.
I've been in touch with t-mobile and they are escalating it to 3rd line support so will wait and see what happens. As it's at home I can use wifi and it's not the end of the world but it some respects I wish I hadn't upgraded and switched networks instead, my gf's on O2 with the phone that is not to be named and doesn't have this problem at all.

In response to your most recent query on a different thread you had posted (now closed):
Will changing the radio help me?
Currently got this issue happening daily
http://forum.xda-developers.com/showthread.php?t=676866
If I lose reception at any point, I have to either turn Airplane Mode on and off or restart the phone to get ANY sort of reception.
Currently on 1.15.405.4 Generic Rom with Baseband version 32.30.00.28U_4.05.00.11
Click to expand...
Click to collapse
Yes, by updating the Radio version this can improve things like battery life, network reception, Wi-Fi, and GPS signal strength, but this also depends on your region - it will either work better for you or could be worse. It may be worthwhile changing to Radio 4.06.00.02 for a few days and try to establish whether or not it improves your situation. If it doesn't, then just revert back to the stock Radio version.

I had a very similar problem on my Touch Diamond 2. It turned out to be a faulty aerial and had to go back to HTC for repair. Worked ok for a while after that, then it started again. An update to their latest ROM then solved it. So a hardware issue and a seperate software issue both produced the same fault for me.

HTC Desire on Orange (data issue)

Hoping you could help me.
I switched from o2 to orange and got a desire in april. one of the first things I did was debrand it, now I'm running defrost. The problem is, it's never worked properly and I'm getting sick of it, so it's going back to orange. My problem is that I can get internet fine on GPRS and HSDPA, I've never seen the EDGE symbol and if I'm only on 3G (not HSDPA) I cannot get any data at all (ever).
I've tried every radio in existence, does anyone else have this problem?
Anyway, I called tech support earlier and they asked do I have 3G symbol in upper or lower case. I can't remember how it looks on the stock orange rom, I know hsdpa is 3G+ but besides that I can't remember whether it's upper or lower case. Could someone please let me know.
Also, anyone got a link for the stock orange rom?

Pretty sure it is all uppercase.

+1 to uppercase. Lots of people have the same problem. I have in some situations been able to use UMTS 3G but 90% of the time it just stalls for ten seconds and then reverts to GPRS o HSDPA. Since I've been away from the city, I've started getting EDGE connections quite frequently.

Orange data seems extremely unstable for me. Especially annoying when im with someone and i tell them "oh let me just check google maps" and then nothing happens even though i've got full signal and H/3G.

Same here in Glasgow.
Debranded Orange with stock ROM and I can often have full 3G+/H coverage but no data throughput
This is an inherant problem though, even though you may have four bars of signal from the local cell, there's no guarantee of any data bandwidth on that cell.
Think of it like my home network:
I have an Apple Airport Wi-Fi base station providing my wireless network.
I then connect it this into my DSL router via an ethernet cable.
Now, even if my DSL connection is down, the router is fully utilised, down, or the ethernet cable to the Airport is down - my Desire, iPod Touch, Laptop etc will all display full wireless connectivity, but I can't do any browsing on them

Thanks guys, I knew there were widespread problems but didn't know whether or not everyone had the same symptoms. Pretty irritating, I'm getting pretty sick of not being able to rely on my phone! I had an unlocked g1 on o2 previously and in comparison it was awesome. I'm definitely going to tell Orange this isn't good enough.
Sadly, I don't think getting a replacement is going to help. Completely spoils an otherwise amazing phone.
I'll never recommend thus to anyone!

Phone> "*#*#4636#*#* >phone information > preferred network type > GSM Auto (PRL)
That did it for me
Sent from my HTC Desire using XDA App

I had the same problem. My advise to you all is do what I did, call Orange executive office, tell them the problem and that you'd like to cancel your contract because they are not supplying what you pay for. Then go to tmob, and get the same contract, except the mobile internet works 100% of the time. Just a heads up, I had an 8 month battle with Orange over this. Now on tmob, and I've never been happier.
I bet if you phone customer services over this they'll say "we've never heard of this issue before" even though they've heard it loads. Orange are not acknowledging the problem exists.
PS I hate Orange (incase you couldn't tell!)
Sent from my HTC Desire using XDA App

Thanks, that's good to know. I've had some experience of what the exec customer complaints team do at work -its a very effective route!
Sent from my HTC Desire using XDA App

[Q] LG G3 Three UK Signal Dropping

Hi all,
Is anyone else experiencing terrible signal on Three UK? My dad just got his G3 and compared to his Nokia 925 signal on Three is atrocious, and seems to drop in an out constantly?
Anyone else experiencing the same?

Not on 3 but I'm on ee (T-Mobile) and I have some prob outs at times that I found has been bit strange but most the time I have great signal.

I am on Three, had no signal concerns at all except in areas of weak signal. The phone doesn't seem great at maintaining a connection when signal is weak, whereas other phones might stay with 1 bar this drops to none, but otherwise signal is as good as can be expected.

No problems here
Sent from my LG-F400L

I have had this problem on 3 UK. I found that going into network settings and choosing the network mode without LTE stopped it from happening! Any idea why this may be anyone? Do we have defective units?
Matt

The g3 is just very slow at finding signal when its lost signal - what is happening is you are losing signal (even if just a split second), any other phone would probably instantly reconnect but the G3 seems slow - this is all software based (well, radio firmware) and can be fixed (and word on the street is that it will be fixed in the next, August, release).

Lennyuk said:
The g3 is just very slow at finding signal when its lost signal - what is happening is you are losing signal (even if just a split second), any other phone would probably instantly reconnect but the G3 seems slow - this is all software based (well, radio firmware) and can be fixed (and word on the street is that it will be fixed in the next, August, release).
Click to expand...
Click to collapse
Thanks for the info, I won't be sending this off any time soon then! Also thanks for your unroot and chromecast volume fix guides they have been very helpful.

Wouldn't enabling fast dormancy help to find the signal quicker if it loses it?

I have also seem a connection problem on three in the UK. I figured switching off lte stopped it happening so much but then again I get 4G free and three tell me I have good signal strength for it so it seems silly to turn it off. Having said that I haven't seen it pop up once yet. Anybody tell me what the signal icons are on the G3, I have only had H so far? Cheers
Sent from my LG-D855 using XDA Free mobile app

stigslim said:
I have also seem a connection problem on three in the UK. I figured switching off lte stopped it happening so much but then again I get 4G free and three tell me I have good signal strength for it so it seems silly to turn it off. Having said that I haven't seen it pop up once yet. Anybody tell me what the signal icons are on the G3, I have only had H so far? Cheers
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
I haven't seen the 4g logo yet either as I live away from any LTE areas, I've seen H and H+, 4g will show up as either LTE or a 4g symbol so I assume that your phone isn't connected to LTE/4g if you haven't seen either of those

Yep that's what I figured. Tweeted three cs but didn't seem to get much help. Thought maybe it's because I'm a SIM only customer. But I have checked there website and to all intents I should be connecting. 4G is good on my area. Not sure what else to try?

Enable fast dormancy for the 3 network. 4G works great on 3 in cities where it is supported.

How to enable fast dormancy? Website gives my area a good signal. I don't even get H+ which I did with my galaxy s3.

stigslim said:
Yep that's what I figured. Tweeted three cs but didn't seem to get much help. Thought maybe it's because I'm a SIM only customer. But I have checked there website and to all intents I should be connecting. 4G is good on my area. Not sure what else to try?
Click to expand...
Click to collapse
Have you tried the options when you enter 3845#*855# into the phone ? I had to use this as I was not getting LTE. See here for more info http://forum.xda-developers.com/lg-g3/general/mod-root-activate-lte-g3-t2819387

The option its already in my network settings menu and switched on. Are these different? Just can't put my finger on it.

I am having the same issue with my LG G3 on Three, the signal is much worse than my galaxy S3. Drops out randomly in my house and then takes ages to get a signal again.
Wondering whether to send it back our not as a phone with bad reception is kind of pointless! Anything perhaps fixable with a new firmware for the radio?

Yep exact same issues. Hoping it's not the phone (bought it myself not from three) really like it and Up to now three was great ? gutted.

It seems the phone either had really good or really bad reception. In poor area's it's quite flaky and can drop out easily when moving between rooms or even how you hold it.
If the reception is good you can get some great speeds on 4G though. Hoping they fix the issues with low signal strength soon as it's quite annoying.

Had a text from three saying they were going to fix my issue within the next seven days. Not picked up a 4g signal at all yet. So watch this space.

I also had problems with signal. I got a replacement SIM & that seems to have improved matters.

[Q] Data service iffy on LTE - phone or Straight Talk issue

Hi,
I've been having data issues with my HTC ONE M8 on Straight Talk for the past couple of weeks. the data service for some reasons got really iffy. before everything was absolutely fine. now sometimes I cannot access data at all, sometimes something is working and something doesn't.
when the data doesn't work:
- most of websites are not reachable
- google.com seems to work normally
- google maps might work; sometimes very slow, sometimes not working at all
- ookla speedtest won't start, but if I set a fixed server it might work
- facebook.com might work in the browser but the app doesn't work
- refreshing the page seems to help
on WI-FI I have absolutely no problem. everything works fine.
phone and txt messages work without problems.
on 3G (HSDPA) everything seems to work fine. I see problems when on LTE.
anybody has the similar issues?? any suggestions?
many thank!!

I am having the exact same issue! So frustrating, I don't want to use 3g if we should be on "Full speed 4G LTE for up to 3GB"!
tried so many different APN's, no luck can't get over 2.5mbps with any of them

I would be happy with anything that works right now. the service is just NOT WORKING. I am paying for a service that doesn't work and that's not acceptable.
I opened a case with the help desk; useless. I was talking to people who don't understand the basic concepts of networking. made me add a proxy to the APN; no difference at all.
then I put a complain on Twitter and got some other people "helping" via email. at least they asked for the address of where I am always having problems; hopefully, they check out the service at the antenna. I think it's not a BTS (antenna) issue but something related to their proxy, firewall or network gateway since google.com works without problems!
I talked to a friend of mine who has StraightTalk as well and he said that he had the same issue last year!

I had the exact same issue with Net10 it is so annoying and unacceptable =(

Have you tried calling straight talk a call

U can try this from what I know ur phone gets chooses the strongest signal tower example u are around 3G tower it has a 9/10 signal and the 4g tower is a 6/10 strength it goes with the 3g hope this helps in ur dial pad dial *#*#4636#*#* then Phone Information....Scroll down a little bit to Set preferred network type. I was able to lock in LTE only doing this and gave me the fastest signal on my device hope with works for u. If u can post ur original settings before u change to lte option only on this post so u can always revert to ur original setting good luck.

SOEBOMB said:
U can try this from what I know ur phone gets chooses the strongest signal tower example u are around 3G tower it has a 9/10 signal and the 4g tower is a 6/10 strength it goes with the 3g hope this helps in ur dial pad dial *#*#4636#*#* then Phone Information....Scroll down a little bit to Set preferred network type. I was able to lock in LTE only doing this and gave me the fastest signal on my device hope with works for u. If u can post ur original settings before u change to lte option only on this post so u can always revert to ur original setting good luck.
Click to expand...
Click to collapse
if I lock it to 3G it actually works well. I will try your suggested settings.
on another note I wonder if it's an issue with the phone radio implementation. my Nokia/Windows phone sees LTE very very slow but it doesn't stop working completely.

xmkgenzo said:
if I lock it to 3G it actually works well. I will try your suggested settings.
on another note I wonder if it's an issue with the phone radio implementation. my Nokia/Windows phone sees LTE very very slow but it doesn't stop working completely.
Click to expand...
Click to collapse
Hmmm Idk but anything's worth a try what settings do u have it on already?

if I put it on GSM/WCDMA (so no LTE) data works fine in 3G.
and if I do a speed test in 3G it gets about 5Mbps in download vs 1, 2 or 3 Mbps when LTE works (ZERO otherwise)

The exact same thing started happening to me two or three weeks ago. More often than not, the LTE connection simply doesn't work, and when it does, it's excruciatingly slow (anywhere from 0.01 to 2.50 mpbs, and usually less than 1.00). Do you guys have AT&T or T-Mo sims? I'm starting to wonder if going to Cricket would solve the problem, but since I'm running an AT&T sim, I'm not sure if anything would change since it's on the same network.
Straight Talk support is worthless... they think a factory data reset will fix it, when it's clearly a network issue. I just told them to stop right there and started troubleshooting myself. That's a good tip about dialing *#*#4636#*#* and turning off LTE that way. It seems like that is where the issue lies - I'm having good luck with HSPA; it's slower than LTE should be, but at least it works. It'll do as a stopgap through the end of my billing cycle, at which point I can decide whether to go somewhere else or get by on HSPA until they fix whatever the problem is.

SOEBOMB said:
U can try this from what I know ur phone gets chooses the strongest signal tower example u are around 3G tower it has a 9/10 signal and the 4g tower is a 6/10 strength it goes with the 3g hope this helps in ur dial pad dial *#*#4636#*#* then Phone Information....Scroll down a little bit to Set preferred network type. I was able to lock in LTE only doing this and gave me the fastest signal on my device hope with works for u. If u can post ur original settings before u change to lte option only on this post so u can always revert to ur original setting good luck.
Click to expand...
Click to collapse
spinninbsod said:
Have you tried calling straight talk a call
Click to expand...
Click to collapse
tried and on pure LTE it simply doesn't work. the only way is to set GSM/WCDMA and it goes at 3G speeds but at least it works.
the funny part is that Google.com always works, whatsapp works, googleplay works. so it seems a problem with throttling or filtering to me.

spinninbsod said:
Have you tried calling straight talk a call
Click to expand...
Click to collapse
yes. completely incompetent. asked for a supervisor; no way to speak to one.
I posted on Twitter and ST got back to me asking to send them an email. I did. 10 different people sending me emails with conflicting actions.
insanely frustrating.

spinninbsod said:
Have you tried calling straight talk a call
Click to expand...
Click to collapse
bushpilotwannabe said:
The exact same thing started happening to me two or three weeks ago. More often than not, the LTE connection simply doesn't work, and when it does, it's excruciatingly slow (anywhere from 0.01 to 2.50 mpbs, and usually less than 1.00). Do you guys have AT&T or T-Mo sims? I'm starting to wonder if going to Cricket would solve the problem, but since I'm running an AT&T sim, I'm not sure if anything would change since it's on the same network.
Straight Talk support is worthless... they think a factory data reset will fix it, when it's clearly a network issue. I just told them to stop right there and started troubleshooting myself. That's a good tip about dialing *#*#4636#*#* and turning off LTE that way. It seems like that is where the issue lies - I'm having good luck with HSPA; it's slower than LTE should be, but at least it works. It'll do as a stopgap through the end of my billing cycle, at which point I can decide whether to go somewhere else or get by on HSPA until they fix whatever the problem is.
Click to expand...
Click to collapse
I have ST on AT&T.
a friend of mine with iPhone 6 down in Newport has no problems. he sent me screenshots of speed test at 15Mbps.
I really wonder if it's some radio firmware issue...

Ironically, I ran into something very like this too recently....I was on an at&t straighttalk sim...lte had been OK prior to me updating to 4.4.4. It was never spectacular, but it was, at least, lte speeds. After the update I noticed it had become really sketchy...just as described, pretty much; even when mine worked it was trash. 3g was much better and totally stable. I thought it might be the update, but long story short, it wasn't. I inserted a friend's sim from tmobile and got full lte with no issues.
Now, in my case, I had been using a shaved down microsim rather than a nano sim, so I thought, maybe that's the issue. I noticed when ordering the new one, the tmobile one actually said htc m8 compatible on the page(plus my friend's legit tmobile sim got good signal and lte so I thought that's a good basis for comparison). Got the new one, put my number on it, and voila! I'm getting on average 20mbps lte. And it's very consistent too. So now I'm on the tmobile straighttalk sim and everything is fine.
Anyways, it's only $7 with free overnight shipping, so that's something easy to try. This wouldn't be the first time a new sim fixed all sorts of weird data problems with straighttalk either. I've been on with them for several years now and this is probably my 4-5th sim I've had to get for various reasons.
So, anyways, your mileage may vary but that fixed it for me. Hope it helps.

gokun said:
Now, in my case, I had been using a shaved down microsim rather than a nano sim, so I thought, maybe that's the issue. I noticed when ordering the new one, the tmobile one actually said htc m8 compatible on the page(plus my friend's legit tmobile sim got good signal and lte so I thought that's a good basis for comparison). Got the new one, put my number on it, and voila! I'm getting on average 20mbps lte. And it's very consistent too. So now I'm on the tmobile straighttalk sim and everything is fine.
Click to expand...
Click to collapse
it seems ST on T-mobile is not having the same issues as ST on AT&T. the problem is that T-mobile coverage is not so good in my area.
I tried my phone in a different location (400 miles away) and had the same issues.

I've done some more testing.
it is really weird that Google.com works flawless while any other site seems not to work.
activating "save data usage" in Chrome seems to help. however it doesn't solve the problem. sometimes pages needs to be reloaded a few times.
even when LTE works, the OOKLA speed test gives me 2Mbps in dowload and 5-6Mbps in upload. so no matter what, I am better off with 3G.

I found an interesting thread here on XDA. I am not rooted at the moment and can't try.
<<
If you are rooted there is simple FIX, simple disable FD8 (Fast dormacy 8)
ro.ril.enable.r8fd=1
ro.ril.enable.pre_r8fd=1
Change both to =0 and issue will be fixed.
If your not rooted only fix is to keep HotSpot enabled than data connection wont break.
>>
I tried the hotspot trick but it doesn't work for me

Sorry to bump an old thread, but I just wanted to give a brief update. My LTE issues with Straight Talk went unresolved for about 6 weeks despite multiple conversations with customer service. I experienced this in Raleigh, NC, Greensboro, NC, and Virginia Beach, VA. Then for Thanksgiving, I went to New York City and New Jersey (the part just outside of Philly), where all data connections were unreliable. Yes, that means 2G, 3G, HSPA, and LTE were all spotty at best the entire time.
I ran out of patience after that, and since my billing cycle was ending on 12/4, I switched to Cricket when I got home. As soon as I popped in the Cricket sim card, everything started working flawlessly again. Cricket does limit you to 8 mbps down, but that's good enough for my purposes. The issue, if it's still going on, is with Straight Talk and not the phone.

Lollipop Fixed the Issue on my HTC M8
Hey all,
I've been following this thread as I too had issues with LTE on my HTC M8 using StraightTalk. When I first got my phone, it worked perfectly with LTE on ST. Then I ran the OS update that was released sometime near November. That's when I noticed the problems. I could run a search on Google but any webpage I would try to connect to would not load. The phone would hang and eventually time out. Your instructions to turn off LTE was great help. Pages load perfectly provided LTE is not used. I was getting really frustrated and you kept me from throwing my phone at a wall. Thanks for that.
So that brings me to this post. I updated my phone to Lollipop this morning. Thought I'd give turning LTE back on and bam.... works perfectly. I've been testing it all morning and so far, all pages load really fast. I will keep an eye on it for a while and post any updates but thought I pay it back a bit with the good news since you guys helped me.
Thanks again.
AC

thank you for sharing!!
trying to upgrade to Lollipop. unfortunately I am having an issue with the recovery (flashed from TWRP to a stock that doesn't work with the OTA and can't flash any other recovery -not sure what's wrong).
when I solve this issue and able to upgrade to Lollipop I will share my LTE test results