Develop Bugs

Rooting issue or just coincidence?

Hey guys, I just a sprint gnex phone a few weeks back and ran the GNex toolkit v9.1 to unlock and root it this past saturday so I could use a hotspot app for my tablet.
I don't know if this is just a bad coincidence or if I did something wrong..I'm not new to roms and have modded my previous phone (evo 4g) about 50 times, but here's what's happening.
Prior to this weekend I had full signal/bars..Now I can barely get 2..It's mostly sitting at 1 bar and sometimes drops the connection entirely. At the same time, every txt msg I send comes back with an error stating it did not send, however...It does actually go through, twice even. This happens with every text to every person.
I didn't put a rom on it, and I didn't even install clockwork mod...I simply just unlocked the bootloader and rooted it. I did setup google voice afterwards. I can't see how doing this would cause these kind of issues and I haven't called Sprint yet as I absolutely despise their customer service..I'd rather get feedback here first.
The coincidence that I'm referring to is that I'm in Austin, Tx and they're in the process of spinning up 4g LTE towers right now..If by chance they started upgrading my tower this weekend (yesterday & today) then I could definitely see these issues...I walked down about 2 blocks where I do get a full 4g signal, but my txting still had the same issue.
Any ideas or thoughts about my problems?

On one hand, I would tell you that rooting doesn't cause that.
On the other hand, you used a toolkit, so who knows what you ended up doing.

If you haven't changed anything as far as ROMs or mods, then I would suspect you're right about something with the network. The only other thing I can think of would be hardware problems of some kind. That seems a lot less likely though. Sprint does supposedly keep a list of networks that are being worked on. You could check in with them and see if the one in your area is being upgraded.
Sent from my Galaxy Nexus using xda premium

Pierceye said:
If you haven't changed anything as far as ROMs or mods, then I would suspect you're right about something with the network. The only other thing I can think of would be hardware problems of some kind. That seems a lot less likely though. Sprint does supposedly keep a list of networks that are being worked on. You could check in with them and see if the one in your area is being upgraded.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I do know they are upgrading the towers in my zip code to LTE 4G..I'll give em' a call tomorrow and see what they say.
This was the toolkit that I used.
http://forum.xda-developers.com/showthread.php?t=1995688

happened to me.
Reboot your phone and go to about and sprint system update.
update profile.
Idk why but its sometimes happens for no reason.
Make sure you have good connection first.(go outside)
If that doesnt work update prl to make the network find the closet tower to you.

robogoflow said:
happened to me.
Reboot your phone and go to about and sprint system update.
update profile.
Idk why but its sometimes happens for no reason.
Make sure you have good connection first.(go outside)
If that doesnt work update prl to make the network find the closet tower to you.
Click to expand...
Click to collapse
I was trying that repeatedly hoping it would fix it..but it doesn't.
On another note, today when I woke up and rebooted the phone I had full bars on 4G signal..Thought life was good and then about 5 mins later it was back to 1 bar 3G. That's the first time I've seen a 4G signal here in my apartment so I'm hoping it really is just the towers in my neighborhood being converted to 4G right now.
I've rebooted my phone 3 times now and the same occurrence happens..Full signal with 4G for a few mins, and then it drops to 1 bar 3G..Have updated my profile and PRL and tried airplane mode..Only way to get that 4G signal back is to reboot the phone..Won't stay on 4G though.

Bad data coverage, but PP coverage area is full 3G for everywhere around me...

HELP! I have a Galaxy S3 (Sprint) that was setup on PP, and phone/txt'ing seems fine, but the data is nearly non-existant (not even getting 1x!) (but occasionally does get a connection for a little bit, but this is rare). (Wifi works fine). (3G was setup on the phone, legitly)
I really don't know what I need to do... Going on a business trip tomorrow, so really hope that I can get this fixed today if possible...

My S3 is also on Page Plus. Which PRL was loaded on your phone? Mine has PRL 00002. My signal at home drops to 1 bar but I always have at least 1x speeds and when I'm at work it gets a consistent 2.2mb or so. You might need to try a new PRL?
Sent from my SPH-L710 using Tapatalk 4 Beta

bonduniverse said:
HELP! I have a Galaxy S3 (Sprint) that was setup on PP, and phone/txt'ing seems fine, but the data is nearly non-existant (not even getting 1x!) (but occasionally does get a connection for a little bit, but this is rare). (Wifi works fine). (3G was setup on the phone, legitly)
I really don't know what I need to do... Going on a business trip tomorrow, so really hope that I can get this fixed today if possible...
Click to expand...
Click to collapse
You may want to checkout the thread HERE.

horrible speeds lately

Lately ive been getting like .32 mbps I usually get at least 6mbps it started happening about 2 weeks ago whem I went out of town I thougt maybe ots the place im in but im home now and it still happens not matter the rom or anything it really sucks can someone help any help at all is greatly appreciated

WzrdCuD said:
Lately ive been getting like .32 mbps I usually get at least 6mbps it started happening about 2 weeks ago whem I went out of town I thougt maybe ots the place im in but im home now and it still happens not matter the rom or anything it really sucks can someone help any help at all is greatly appreciated
Click to expand...
Click to collapse
Ssme goes with me but, I called tmobile ask about they told me that they updating or somrhing on the towers around my area. Its been like this for more then a week.
Sent from my SGH-T889 using xda app-developers app

culua said:
Ssme goes with me but, I called tmobile ask about they told me that they updating or somrhing on the towers around my area. Its been like this for more then a week.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Yeah I dont think thats my problem though because my girlfriend has tmobile and she is not rooted but her phone works perfectly she has the s3 and ontop of that everytime I restart my phone the speeds return to normal for like 5 min then go back to the really slow speeds and my plan is unlimited

WzrdCuD said:
Yeah I dont think thats my problem though because my girlfriend has tmobile and she is not rooted but her phone works perfectly she has the s3 and ontop of that everytime I restart my phone the speeds return to normal for like 5 min then go back to the really slow speeds and my plan is unlimited
Click to expand...
Click to collapse
I have been on the phone with TMO about the same thing for over a month, plus my issue goes a little further. I will lose connection to a tower and not get texts or calls until I reboot the phone.
TMO had me replace the phone and SIM card, then opened a ticket with the Engineers in Las Vegas to troubleshoot, their response was that it was a known issue and would be resolved in the next weeks or months.
Everything ran fine until they pushed out the 4G LTE update, after that the service has been horrible.... even after that update that was supposed to resolve it...
I am wondering if there is a ROM out there that someone built to address this issue as I have about had it...
I am rooted but haven't thrown a ROM on it .... yet

NTFDAWY said:
I have been on the phone with TMO about the same thing for over a month, plus my issue goes a little further. I will lose connection to a tower and not get texts or calls until I reboot the phone.
TMO had me replace the phone and SIM card, then opened a ticket with the Engineers in Las Vegas to troubleshoot, their response was that it was a known issue and would be resolved in the next weeks or months.
Everything ran fine until they pushed out the 4G LTE update, after that the service has been horrible.... even after that update that was supposed to resolve it...
I am wondering if there is a ROM out there that someone built to address this issue as I have about had it...
I am rooted but haven't thrown a ROM on it .... yet
Click to expand...
Click to collapse
Im guessing you updated your phones softwarem if so, you may want to downgrade to a 4g non-lte radio, and set yourself up on a 4g apn as well. It should help at least until rhey correct their tower issues. 4g is still pretty fast and at least your mms / signal will work as you will be back in the 4g towers instead.
Edit
Actually try this:
Settings--> wireless and networks / more settings --> mobile networks --> network mode --> and select the automatic 4G /3g /2g setting
Then go to access point names and add a new one. The only 4 lines you need to edit are as follows :
Name - Tmobile 4g
APN - epc.tmobile.com
MMSC - http://mms.msg.eng.t-mobile.com/mms/wapenc
And
Apn type - default,supl,admin,dun,mms ( no spaces inbetween the comas )
Give it a shot and let us know if it helps. It should force you back onto the 4g towers which use a different frequency. If you still have issues, then keep all these settings active THEN try an older 4G radio.
Sent from my SGH-T889 using xda app-developers app

Just like pyraxiate up here just said is exactly what i was going to say. Go to this thread right here, http://forum.xda-developers.com/showthread.php?t=2102380 , & flash the last modem which is T889UVBMB4. I was using the T889UVBMD1 modem at 1st & was getting ok service but it just got to the point it was way to slow. I still go back to the T889UVBMD1 modem once and a while with the latest 4g lte apn but 75% of the day it is just way to slow of a combo. Like mentioned id also suggest flashing the T889UVBMB4 modem with the T-MOBILE US apn setting on this thread, http://forum.xda-developers.com/showthread.php?t=2208408 . There's only one page on the thread so it will be right there when you scroll down.

sIpInWiT mYdRoId said:
Just like pyraxiate up here just said is exactly what i was going to say. Go to this thread right here, http://forum.xda-developers.com/showthread.php?t=2102380 , & flash the last modem which is T889UVBMB4. I was using the T889UVBMD1 modem at 1st & was getting ok service but it just got to the point it was way to slow. I still go back to the T889UVBMD1 modem once and a while with the latest 4g lte apn but 75% of the day it is just way to slow of a combo. Like mentioned id also suggest flashing the T889UVBMB4 modem with the T-MOBILE US apn setting on this thread, http://forum.xda-developers.com/showthread.php?t=2208408 . There's only one page on the thread so it will be right there when you scroll down.
Click to expand...
Click to collapse
Already gave him those settings in my post to him Hopefully he gets his issue fixed though!
Sent from my SGH-T889 using xda app-developers app

It's screwed from coast to coast. Been back and forth driving from california to pennsylvania, and the network is spotty on LTE within LTE markets, otherwise it runs great until it hiccups.
Seems like you get the equivalent of 'buffer overrun' issues from cd burning. Gert a bunch of data quickly, then stops for a minute to sort it out, then another data burst.
Seems like it happens to deliver a handful of megs of data, then practically loses network service for a few seconds, then another couple megs of data.
Just what i've seen running around nationwide.
LTE is fast when you find it though, nowhere near the speed of my verizon LTE service, but I can live with it.
Hopefully once they finish the LTE rollout it'll be back to normal.

Galaxy S4 looses connection constantly.

i have the galaxy s4 from t-mobile and i hate this phone with a ****ing passion. this **** looses connection almost all the time. i've switched ROMs, kernels, went back to stock, unrooted, re-rooted and did almost everything and it still doesnt have a strong connection. i have checked with t-mobile and the phone is not reported as stolen and that was kind of obvious because it gets connection for 3-20 minutes then it looses and and drives me crazy. i've spent countless hours trying to resolve this thing and i just cannot. its not the sim because it happens randomly and i had an s3 last week that never did this. i also tried a different sim and the same thing happened. i have wi-fi and everything else i just don't have a contant connection to the cellular towers. i even changed the APN settings and **** still didn't work.i am so upset that i am willing to go buy a samsung galaxy s4 from t mobile and return it and instead give them this crappy one because i am so fed up. someone please help me. i would rather have no phone than have a brand new phone that doesn't receive service. this has to be the most frustrating thing ever. i have done countless searches and i am hopeless now. and the switching kernels part, im not reallly exactly sure what that does but i have a feeling that it has something to do with the baseband or whatever and i've switched it a few times and it has worked for a few minutes. the phone will be stuck on searching forever and i've even tried registering manually and nothing still happens. the phone gods must be upset at me. someone help me please.

cipher978 said:
i have the galaxy s4 from t-mobile and i hate this phone with a ****ing passion. this **** looses connection almost all the time. i've switched ROMs, kernels, went back to stock, unrooted, re-rooted and did almost everything and it still doesnt have a strong connection. i have checked with t-mobile and the phone is not reported as stolen and that was kind of obvious because it gets connection for 3-20 minutes then it looses and and drives me crazy. i've spent countless hours trying to resolve this thing and i just cannot. its not the sim because it happens randomly and i had an s3 last week that never did this. i also tried a different sim and the same thing happened. i have wi-fi and everything else i just don't have a contant connection to the cellular towers. i even changed the APN settings and **** still didn't work.i am so upset that i am willing to go buy a samsung galaxy s4 from t mobile and return it and instead give them this crappy one because i am so fed up. someone please help me. i would rather have no phone than have a brand new phone that doesn't receive service. this has to be the most frustrating thing ever. i have done countless searches and i am hopeless now. and the switching kernels part, im not reallly exactly sure what that does but i have a feeling that it has something to do with the baseband or whatever and i've switched it a few times and it has worked for a few minutes. the phone will be stuck on searching forever and i've even tried registering manually and nothing still happens. the phone gods must be upset at me. someone help me please.
Click to expand...
Click to collapse
Try this....dial *#2263#....select LTE GSM. Which is at the bottom. This will force LTE... try it and see if that helps you.
Hit the Thanks button if I helped.
Sent from a Wicked S4

do i have to be on stock rom to do this?
alloycowboy said:
Try this....dial *#2263#....select LTE GSM. Which is at the bottom. This will force LTE... try it and see if that helps you.
Hit the Thanks button if I helped.
Sent from a Wicked S4
Click to expand...
Click to collapse

Time for a new model?
I'm getting tired of my S4's problems as well. Since going on vacation in June, I've had constant issues with my data. I see one bar to no bars constantly. I'm frequently on Edge as well (literally and figuratively LOL). I don't usually pay attention to the signal meter 'cause I know it is real world use that matters. But the performance is noticeably bad. Takes forever to load a page and is very slow overall and getting can't connect notices regularly.
TMO actually let me replace it once but I am still having problems.
Everything worked perfectly before my vacation. Had great LTE coverage. And never once saw EDGE.
I'm convinced the problem is on TMO's end, but nothing we've tried will restore my performance.
I hate non removable batteries and no sd card slots, so not a lot of alternatives on TMO. But I may get the nexus or One.

cipher978 said:
do i have to be on stock rom to do this?
Click to expand...
Click to collapse
Nope. Works on stock or rooted
Hit the Thanks button if I helped.
Sent from a Wicked S4

cipher978 said:
i have the galaxy s4 from t-mobile and i hate this phone with a ****ing passion. this **** looses connection almost all the time. i've switched ROMs, kernels, went back to stock, unrooted, re-rooted and did almost everything and it still doesnt have a strong connection. i have checked with t-mobile and the phone is not reported as stolen and that was kind of obvious because it gets connection for 3-20 minutes then it looses and and drives me crazy. i've spent countless hours trying to resolve this thing and i just cannot. its not the sim because it happens randomly and i had an s3 last week that never did this. i also tried a different sim and the same thing happened. i have wi-fi and everything else i just don't have a contant connection to the cellular towers. i even changed the APN settings and **** still didn't work.i am so upset that i am willing to go buy a samsung galaxy s4 from t mobile and return it and instead give them this crappy one because i am so fed up. someone please help me. i would rather have no phone than have a brand new phone that doesn't receive service. this has to be the most frustrating thing ever. i have done countless searches and i am hopeless now. and the switching kernels part, im not reallly exactly sure what that does but i have a feeling that it has something to do with the baseband or whatever and i've switched it a few times and it has worked for a few minutes. the phone will be stuck on searching forever and i've even tried registering manually and nothing still happens. the phone gods must be upset at me. someone help me please.
Click to expand...
Click to collapse
Have you used mobile Odin with any of your flashing on this phone?
I'm just sayin!

Could it be the APN sometimes I see the S4 without the fast.t-mobile.com APN. Also you could try a new SIM. I am just guessing idk for sure and do not take any responsibility.
Sent from my SGH-M919 using Tapatalk 4

If he has flashed thru mobile Odin on his phone, I'm willing to bet that's the culprit. The same happened to me on 2 s4's that I restored stock thru MO. At first glance the issue was not as noticeable until I became aware of how unstable the connection was in places it shouldn't have been.
I'm just sayin!

cipher978 said:
i have the galaxy s4 from t-mobile and i hate this phone with a ****ing passion. this **** looses connection almost all the time. i've switched ROMs, kernels, went back to stock, unrooted, re-rooted and did almost everything and it still doesnt have a strong connection. i have checked with t-mobile and the phone is not reported as stolen and that was kind of obvious because it gets connection for 3-20 minutes then it looses and and drives me crazy. i've spent countless hours trying to resolve this thing and i just cannot. its not the sim because it happens randomly and i had an s3 last week that never did this. i also tried a different sim and the same thing happened. i have wi-fi and everything else i just don't have a contant connection to the cellular towers. i even changed the APN settings and **** still didn't work.i am so upset that i am willing to go buy a samsung galaxy s4 from t mobile and return it and instead give them this crappy one because i am so fed up. someone please help me. i would rather have no phone than have a brand new phone that doesn't receive service. this has to be the most frustrating thing ever. i have done countless searches and i am hopeless now. and the switching kernels part, im not reallly exactly sure what that does but i have a feeling that it has something to do with the baseband or whatever and i've switched it a few times and it has worked for a few minutes. the phone will be stuck on searching forever and i've even tried registering manually and nothing still happens. the phone gods must be upset at me. someone help me please.
Click to expand...
Click to collapse
how do you feel about run on sentences?

alloycowboy said:
Try this....dial *#2263#....select LTE GSM. Which is at the bottom. This will force LTE... try it and see if that helps you.
Hit the Thanks button if I helped.
Sent from a Wicked S4
Click to expand...
Click to collapse
Id say the opposite. Unforce lte and force gsm. The 3g network is much stronger than the 4g network. If it stays on 3g it should have a more consistent signal.
Sent from my SGH-M919 using xda app-developers app

[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.
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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