Database Develop

LTE RSRP (dBm) signal comparison

I think a lot of us would like to see is the RSRP (dBm) values of the HTC One sitting next to the EVO and possibly another device like the GS3 or Note 2.
Can someone who has the HTC One in a 4G LTE market find another LTE phone and compare them side by side?
Pretty Please!
Thanks in advance!

Tell me where to get the dBm values and I can do it for you.
Sent from my HTCONE using xda premium

Felnarion said:
Tell me where to get the dBm values and I can do it for you.
Sent from my HTCONE using xda premium
Click to expand...
Click to collapse
On HTC phones you can go to "About Phone" and then "Network" or the "Sensorly" app will show you under "Details" if you have that app downloaded
Do you have an EVO or other phone activated that you can show the screens side by side?
Sent from my HTC EVO 4G LTE ....

Syph3r said:
On HTC phones you can go to "About Phone" and then "Network" or the "Sensorly" app will show you under "Details" if you have that app downloaded
Do you have an EVO or other phone activated that you can show the screens side by side?
Sent from my HTC EVO 4G LTE ....
Click to expand...
Click to collapse
Here are some screenshots of where to find it.
Sent from my HTC EVO 4G LTE ....

i use signalcheck found in the play store.

I use an app called Open Signal for testing signal strength, it's free and I think ad-free... as well as useful.
I would test the LTE, but there is no LTE where I live.
Somewhat related, I started a thread moments ago about signal issue I am having on my ONE unfortunately...

tnEVo said:
I use an app called Open Signal for testing signal strength, it's free and I think ad-free... as well as useful.
I would test the LTE, but there is no LTE where I live.
Somewhat related, I started a thread moments ago about signal issue I am having on my ONE unfortunately...
Click to expand...
Click to collapse
Issues with 3G or voice calls?
Sent from my HTC EVO 4G LTE ....

Here are my stats, though I don't know how relevant they are. No matter what, I cannot get them to connect to the same tower. The comparison is between the One and an S3, The S3 runs CM 10.1. The screenshots were taken in the same place, not side by side, but in the exact same location one after the other.
Check the filenames to compare.

Syph3r said:
Issues with 3G or voice calls?
Sent from my HTC EVO 4G LTE ....
Click to expand...
Click to collapse
Voice for sure, haven't tested any 3G yet.... on WIFi at the house.

heres in my house where its spotty, my daughters ip5 is anywhere between -112-117 in the house and stays on lte. neither the one, lte or my wifes gs3 can hold the lte connection like the ip5 can in this house.
LTE no connection and this was after a airplane mode shuffle
and the One

Just went into a sprint store yesterday and compared the One with my EVO ....I am VERY VERY Disappointed!
The sprint store is right on the edge of a 4G tower...perfect for testing the RF signal. When I walked in the One was connected to 4G without issue, EVO as well. Tried going to the network screen on the one but for some reason it was greyed out and could not access. So I downloaded sensorly so I could see the RSRP values.
Just holding the 2 phones together for a picture and the HTC one drops LTE.
Sent from my HTC EVO 4G LTE ....

Is this something that can be fixed or do we have to rely on Sprint and HTC to adjust something?.. I'm dropping from 4G to 3G all the time in places my other LTE phones hold.
Is this a software issue or Hardware?
Sent from my HTC One using xda premium

I just drove one way down a road(4 miles) that has 4G with my phone in the dock and sensory and Google music running. Held 4G the whole way..
Just had to drive down the same road back to the house with the phone on my center console and it was holding 4G again until I touched the phone. When I let it go it connects to 4G again after a minute or so.. Then when I touch it it loses 4G again.. WTF is going on here?
When I say "touch" it, I mean just picking it up in hand. Did this 4 times... This does not happen in areas where it's a strong LTE signal. Only in the outer areas of the LTE signal. But like mentioned before, my other devices hold it fine.
Sent from my HTC One using xda premium

I work in a basement office (IT), and i'm close enough to a tower that my GS3 would still be able to hold on to a weak LTE signal at times (mostly 3G, but sitting on my desk, I could usually cycle airplane mode and get it to hold LTE). It pulled about 2 meg down on LTE the couple times I tested it. I've seen my One grab LTE a couple times, but as soon as it tried to move any data, it would drop back to 3G.
Other than that, both seem to perform pretty much the same to me, but haven't had enough time to test them side by side. I always had to cycle airplane mode to get the GS3 to look for LTE again after dropping to 3G (without having to wait 10 minutes), but with the One, it seems like all you have to do is toggle Mobile Data off and back on and it'll grab LTE. Definite plus there.

BrianBaker said:
I just drove one way down a road(4 miles) that has 4G with my phone in the dock and sensory and Google music running. Held 4G the whole way..
Just had to drive down the same road back to the house with the phone on my center console and it was holding 4G again until I touched the phone. When I let it go it connects to 4G again after a minute or so.. Then when I touch it it loses 4G again.. WTF is going on here?
When I say "touch" it, I mean just picking it up in hand. Did this 4 times... This does not happen in areas where it's a strong LTE signal. Only in the outer areas of the LTE signal. But like mentioned before, my other devices hold it fine.
Sent from my HTC One using xda premium
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Click to collapse
Yep, same thing here...I pick up the phone, press the power button to wake, and within seconds data either switches to 3G and/or drops altogether, only to come back after short period. When it comes back it sometimes stays good and sometimes continues to give me issues. I'm thinking software too...but I'm definitely not in a fringe area, at least according to Sprint's coverage map. I'm not going to wait this out and be frustrated...tomorrow morning I'm going to an AT&T store and check out their demo. If it holds a data connection I'm returning the Sprint phone and switching to AT&T. Thankfully, I was at the end of my Verizon contract and within the 14 day remorse period with Sprint.
Oh, and I might add, it did this while I was in the Sprint store and I dismissed it as being indoors or something that would settle. I guess I was so smitten with this sexy ass phone that I too quickly dismissed the issue.

LTE Reception?

Anyone else having trouble with their LTE reception? I just came from an iPhone 5 and fortunately around me the area is kind of blanketed in LTE but I have yet to get any solid connection on the One where as with my iPhone 5 it would lock on and get great speeds. I saw the LTE on the one pop in a couple times but just for a couple secs and even once long enough to start a Speed Test but then it "lost connection" in the middle of the test. I assume a PRL update is needed or at least I'm hoping its just a PRL update.

You practically have to be making love to the tower to get 4G to connect. And yes you are not alone.
Sent from my HTC One using xda premium

BrianBaker said:
You practically have to be making love to the tower to get 4G to connect. And yes you are not alone.
Sent from my HTC One using xda premium
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Click to collapse
Hmm wonder if this is something that can be fixed via software, this is kind of bumming me out - this will be the one and only gripe I'll have.

D3luSi0n4L said:
Hmm wonder if this is something that can be fixed via software, this is kind of bumming me out - this will be the one and only gripe I'll have.
Click to expand...
Click to collapse
I was a bit harsh...The phone is quite capable of grabbing an LTE signal..But in fringe areas is will not hold it.It will switch back to 3G..On the sensorly App it seems anything that is 0-2 bars will grab a signal but will drop it eventually..
But man when you are in 3-4 bars in dark purple this phone flys on LTE.

I'm pulling crazy far lte speeds
Sent from my HTCONE using Tapatalk 2

Yeah I was too on my iPhone 5 - like 30mbps download and 10 upload. I'll update this post when I get another chance to test it again I went ahead and did a profile and prl update.

Sounds like location. I am in Houston and 80% of the time its on 4G, I usually get around 15 to 25 down on 4G. Indoors It stays on 4G but speed drops to around 2

BrianBaker said:
I was a bit harsh...The phone is quite capable of grabbing an LTE signal..But in fringe areas is will not hold it.It will switch back to 3G..On the sensorly App it seems anything that is 0-2 bars will grab a signal but will drop it eventually..
But man when you are in 3-4 bars in dark purple this phone flys on LTE.
Click to expand...
Click to collapse
This is a software decision.
For most networks, the decision to switch back to 3g would be wise. For most, LTE is blazing fast and 3g is usable. Switching back to 3g on the fringe of an LTE tower is a fine decision on say, Verizon. It also makes sense from a battery standpoint. There is no sense making the higher power LTE radio strain for a signal when there is a perfectly usable 3g one available to a lower power radio.
The problem is with Sprint, with Sprint, you want to hold onto every last drop of LTE because even the faintest, messiest, LTE signal is going to be faster than the 3g.
There will be a software update, I am fairly confident, that will change the values where the the phone gives up on LTE.

Felnarion said:
This is a software decision.
For most networks, the decision to switch back to 3g would be wise. For most, LTE is blazing fast and 3g is usable. Switching back to 3g on the fringe of an LTE tower is a fine decision on say, Verizon. It also makes sense from a battery standpoint. There is no sense making the higher power LTE radio strain for a signal when there is a perfectly usable 3g one available to a lower power radio.
The problem is with Sprint, with Sprint, you want to hold onto every last drop of LTE because even the faintest, messiest, LTE signal is going to be faster than the 3g.
There will be a software update, I am fairly confident, that will change the values where the the phone gives up on LTE.
Click to expand...
Click to collapse
I was going to return the phone today but I'll roll the dice in hopes there is an update for this because in those "fringe" areas my Note II holds 4G and its only 2Mbps down and 1Mbps up but it's better than the 3G 28.8k it switches to..
I just hope when the area is covered by more LTE it'll even out..Happy to hear that about Houston which has more coverage that the One holds it's 4G better..This is what im banking on.

BrianBaker said:
I was going to return the phone today but I'll roll the dice in hopes there is an update for this because in those "fringe" areas my Note II holds 4G and its only 2Mbps down and 1Mbps up but it's better than the 3G 28.8k it switches to..
I just hope when the area is covered by more LTE it'll even out..Happy to hear that about Houston which has more coverage that the One holds it's 4G better..This is what im banking on.
Click to expand...
Click to collapse
I'm smack in the middle of what is supposed to be a fairly saturated LTE area for Sprint (North Dallas, TX) and mine keeps switching between 3G and 4G with total data drops seemingly random and many times throughout the day. What's weird is often times, I'll go to use the phone and the 4G is there and 3 or more bars, and then as soon as I open an app that uses data the connection will drop. It doesn't happen every time, but way more than I can live with. I'm thinking about returning it to Sprint and going with AT&T instead. I just hate to have to hassle with it and pay more for less.

boomerod said:
I'm smack in the middle of what is supposed to be a fairly saturated LTE area for Sprint (North Dallas, TX) and mine keeps switching between 3G and 4G with total data drops seemingly random and many times throughout the day. What's weird is often times, I'll go to use the phone and the 4G is there and 3 or more bars, and then as soon as I open an app that uses data the connection will drop. It doesn't happen every time, but way more than I can live with. I'm thinking about returning it to Sprint and going with AT&T instead. I just hate to have to hassle with it and pay more for less.
Click to expand...
Click to collapse
well,then i guess all I can hope for is some sort of update that helps keep 4G connected

Probably has to do with a minimum signal strength value to keep it connected to LTE and not search for a stronger signal. Hopefully there will be an update or a patch to fix this.

Darkendvoid88 said:
Probably has to do with a minimum signal strength value to keep it connected to LTE and not search for a stronger signal. Hopefully there will be an update or a patch to fix this.
Click to expand...
Click to collapse
I just feel like not enough people are complaining about this issue and it'll just keep working the way it is now. Which would suck.
Through out my searched for the night I ended up at a tmobile website where they too were having the same 4G issues.. Maybe it is a design problem and not just software.
Sent from my HTC One using xda premium

"Bars" mean nothing, usually they only show strength of the cdma 1x (voice), not lte strength..
http://s4gru.com/index.php?/topic/2...to-determine-your-actual-lte-signal-strength/

Happening frequently
I have the same problem keeps switching from LTE to 3g constantly I think it is happening to multiple on sprint network idk about others http://www.gottabemobile.com/2013/04/26/sprint-htc-one-lte-connectivity-issue-in-select-markets/

BrianBaker said:
well,then i guess all I can hope for is some sort of update that helps keep 4G connected
Click to expand...
Click to collapse
no problems here in fort myers. When i'm home it locks on 4g and screams at 25 down and 10 up

wranglerray said:
no problems here in fort myers. When i'm home it locks on 4g and screams at 25 down and 10 up
Click to expand...
Click to collapse
That's helpful...with issues like this, especially at or near launch of a new device, it's always a question of device vs. network vs. software issues. I'm always skeptical that the device is the issue, especially on flagship models. I posted on a Sprint forum and one user said he took his phone back and Sprint swapped it for another HTC One and he's had no issues. Says he thinks it's some type of provisioning issue, which I am not too sure of. But he said he a similar issue with the Evo LTD (I think) and swapped and no more issues. There also was a Sprint rep that chimed in on the thread and advised me that an Vision upgrade had been made in my area yesterday and to update profile and prl and then power down for 3-5 minutes. I followed that advice but I'm still having issues. For reference, I'm in 75240 zip code.
---------- Post added at 10:00 AM ---------- Previous post was at 09:55 AM ----------
jcwxguy said:
"Bars" mean nothing, usually they only show strength of the cdma 1x (voice), not lte strength..
http://s4gru.com/index.php?/topic/2...to-determine-your-actual-lte-signal-strength/
Click to expand...
Click to collapse
Yeah, I think most of us that have been around a while realize that. I could care less about the bars. Hell, I hardly even talk on the phone. What I need is Data to work, consistently. I don't even care if it's 4G if a decent 3G is available and would provide a consistent connection. Well, yeah, I would prefer it be 4G. The selling point for Sprint right now is their prices and unlimited Data. When you factor in that they are really trying to upgrade their network to compete with the other big 2, and are oriented towards customer concerns at the moment, it makes them appealing. But they got to get the data consistent, especially in large markets like Dallas, TX, or they are just going to keep on churning customers. I just switched to them from Verizon as I was at the end of my contract and was a bit tired of Big Red's bullying, but I have to hand it to them, their network is fantastic. I might be going right back to them, or take a chance on AT&T, which I switched from to Verizon a couple years ago.

Dropping to 3g

I switched back to this phone after having the galaxy 4 because this is a better phone for the most part.
That being said..this phone does poorly hanging on to LTE with Sprint. In areas that have steady 4g coverage that my iPhone 5 and s4 would display 4g, the One often inexplicably drops to 3g, requiring a switch to airplane mode and back again.
I actually used the airplane mode to force 4g like 5 times today.
I know somebody else has to see this issue
Sent from my HTCONE using xda app-developers app3

greengoldmello said:
I switched back to this phone after having the galaxy 4 because this is a better phone for the most part.
That being said..this phone does poorly hanging on to LTE with Sprint. In areas that have steady 4g coverage that my iPhone 5 and s4 would display 4g, the One often inexplicably drops to 3g, requiring a switch to airplane mode and back again.
I actually used the airplane mode to force 4g like 5 times today.
I know somebody else has to see this issue
Sent from my HTCONE using xda app-developers app3
Click to expand...
Click to collapse
I have a thread where I'm working on trying to tweak some epst settings to fix some of these issues. Haven't gotten to the LTE stuff really yet.
D3rped out Beastmode! HTC ONE!

Funny thing is I was thinking of posting this in your thread, but I didnt want to derail it.
I think part of the problem stems from the One not scanning for lte as often as the other phones. I drop data completely quite often and it takes a while to pop back up. And when it does, it's 3g, not 4
Sent from my HTCONE using xda app-developers app

Same here.. 2 different Ones same issue.. Hoping for a radio fix from sprint/HTC because EPST settings won't fix the problem
Sent from my HTCONE using xda premium

BrianBaker said:
Same here.. 2 different Ones same issue.. Hoping for a radio fix from sprint/HTC because EPST settings won't fix the problem
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It wouldn't fix it but if it's just a configuration issue. Example if it's designed to drop a signal sooner than say the S4 then tweaking some settings COULD fix it. That's all I'm looking to do. Try to fine tune some settings specifically for sprint and this phone.
Edit: I also know that sometimes that can do more harm than good (like maintaining too weak of a signal and have no data connection to speak of) but. Doesn't hurt to try!
D3rped out Beastmode! HTC ONE!

Thought I was done with the airplane mode dance as well, coming from the EVO LTE. Ah well.
Oddly, I've had the phone stay on LTE far more often using AOSP, same for my old EVO LTE, which it's usually the opposite no?
Sent from my HTCONE using xda app-developers app

Airplane toggle is kind of pointless. The phone grabs LTE Just fine.. It just won't hold it. Especially when you start something that uses data. I've been in areas where I know the signal drops with this phone with it sitting in the dock. But as soon as you run a speed test or download an app it drops to 3G..In all honesty the only way to keep this stupid thing stable is to disable LTE completely and run with crap 3G until your area is heavily saturated with LTE because when your in the middle of doing something data centric and it switched to 3G you have to pretty much start all over or re open the app. Never had to do this on my Note 2.
Sent from my HTCONE using xda premium

This worries me. I'm thinking of selling the note 2 and picking this phone up. The note 2 has great reception.
Sent from my SPH-L900

I have experienced this too but it happens to me when I am driving home from work which is a 2 hour drive the job site I am at has lte and it holds a signal all day. On the way home I will lose data in certain locations every day the exact same ones cause obviously sprints lte is still being worked on but I think it maybe be because they are upgrading towers cause in the past month I get lte in more and more places driving on I94 from Detroit to Kalamazoo and also the job site has lte everywhere and before it was spotty
Sent from my HTCONE using xda premium

dandan2980 said:
I have experienced this too but it happens to me when I am driving home from work which is a 2 hour drive the job site I am at has lte and it holds a signal all day. On the way home I will lose data in certain locations every day the exact same ones cause obviously sprints lte is still being worked on but I think it maybe be because they are upgrading towers cause in the past month I get lte in more and more places driving on I94 from Detroit to Kalamazoo and also the job site has lte everywhere and before it was spotty
Sent from my HTCONE using xda premium
Click to expand...
Click to collapse
This happens to me and my 1st HTC One and my current HTC One and my co workers HTC One no matter if we're standing still or driving..In areas I know for a fact are not being currently worked on..It only happens on the outskirts of an LTE Signal.But like i said earlier,these are places my Note 2 has never ever dropped a signal..I've debated so many times going back to my Note 2 but I just can't do it.469 DPI and a screen I can see in daylight has spoiled me rotten...Only logical thing to do is go to AT&T and buy the HTC One there but that would do a number on my wallet so i'll stick around with Sprint until winter and see what they can do.

BrianBaker said:
Airplane toggle is kind of pointless. The phone grabs LTE Just fine.. It just won't hold it. Especially when you start something that uses data. I've been in areas where I know the signal drops with this phone with it sitting in the dock. But as soon as you run a speed test or download an app it drops to 3G..In all honesty the only way to keep this stupid thing stable is to disable LTE completely and run with crap 3G until your area is heavily saturated with LTE because when your in the middle of doing something data centric and it switched to 3G you have to pretty much start all over or re open the app. Never had to do this on my Note 2.
Sent from my HTCONE using xda premium
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Click to collapse
Keep in mind the signal strength you see is NOT 4G even if you're getting 4G.
There are tools to monitor 4G Strength (search google play).
This phone is horrible with weak 4G around. Bounces in and out and it's very slow at doing that.

As I drive through known 4g coverage areas my note 2 grabs 4g with no issue. My HTC one woould stay in 3g. Frustrating knowing I'm giving my Note 2 to my nephew. Good thing 4g is only in small spots around Southern CT.

mswlogo said:
Keep in mind the signal strength you see is NOT 4G even if you're getting 4G.
There are tools to monitor 4G Strength (search google play).
This phone is horrible with weak 4G around. Bounces in and out and it's very slow at doing that.
Click to expand...
Click to collapse
Im aware of what the signal bars represent on this phone.. I go into field test to look at dbm's
Sent from my HTCONE using xda premium

I cannot imagine how awesome this phone would be with strong 4g. I use verizon razr hd for my work line and 95% of the time it has a 4g signal, and thats the phone i always reach for when on the road although i love my one so much more...seems sprints roll out is not as fast as I anticipated

I live on the border of an official 4g area (Los Angeles) and I seem to go back and forth from LTE and 3g at home all day long. But, when you do get LTE, it is amazing. Fastest LTE speeds I've ever seen on any carrier. I easily get 25/10 and a great signal in LTE zones.

I have often wondered how my phone could bounce around from 4g to 3g then sometimes to no.data connection all while sitting in the same spot. Is that a network or a device issue? If it's a phone issue do I have a right to get a different one,even though I have had this for over a month
Sent from my HTCONE using xda app-developers app

tommason1968 said:
I have often wondered how my phone could bounce around from 4g to 3g then sometimes to no.data connection all while sitting in the same spot. Is that a network or a device issue? If it's a phone issue do I have a right to get a different one,even though I have had this for over a month
Sent from my HTCONE using xda app-developers app
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Click to collapse
Definitely a network issue..Don't waste your time getting a replacement because it will be the same...Weather and humidity come in to play here as well

This is the story of my life since I got the One. People keep telling me that the S4 has the same issues and the problem is Sprint, but of the 3 people I know with an S4 none of them have this problem where I live. Once they are in an area with 4G, their phone stays on 4G. With the HTC One it takes forever to pick up 4G and once it decides to drop 4G it will take forever to pick it back up unless you toggle airplane mode.
The phone is damn near unusable in Johnson City TN because the 3G is way over capacity on at least half the towers in the area, and if the phone can't hold on to the 4G signals that I know are there then it's basically a paperweight. I really hope there is an update soon.

Spotty 4g lte

Just got the One, coming from s2, and love this phone. However I'm on Sprint lte now, and get very spotty coverage. It constantly switches from3g to lte, sometimes no data at all.
Of course this is a sprint issue, but is there a Rom or other ticks that may help get more consistent lte connection?
Sent from my HTCONE using xda app-developers app

Not really. I had to lave Sprint after being with them for 11 years due to my phone(s) not getting calls and poor network performance. In Dallas they really messed up big with Network Vision updates. Just my opinion.
Doesnt matter what hardware or software your on if the network is the problem your phone wont make it better.
Untill they get a handle on the system issues its not going to get better.

IAmSixNine said:
Not really. I had to lave Sprint after being with them for 11 years due to my phone(s) not getting calls and poor network performance. In Dallas they really messed up big with Network Vision updates. Just my opinion.
Doesnt matter what hardware or software your on if the network is the problem your phone wont make it better.
Untill they get a handle on the system issues its not going to get better.
Click to expand...
Click to collapse
#Truth
I regret leaving Tmobile. But hey, I hope that with a Tri-Band LTE enabled phone...things should be better. At least in the near future.

centro714 said:
Just got the One, coming from s2, and love this phone. However I'm on Sprint lte now, and get very spotty coverage. It constantly switches from3g to lte, sometimes no data at all.
Of course this is a sprint issue, but is there a Rom or other ticks that may help get more consistent lte connection?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Random question, but are you using a case on your phone? If so, what kind?
Sent from my HTCONE using Tapatalk 2

It's been going on for me since the beginning of July. It's not your phone, it's the awful network. The network has gotten so bad here, my local new station did a story on it since so many people were complaining. Normally I'm not a fan of stuff like this cause the media tends to exaggerate but in this particular case it's as bad as they say. I can have the tower in site and my phone will dump between X/1X/3G/LTE. Constant dropped calls, cutting in & out, unusable data, etc. I have been with Sprint for over 10 years & the network is literally unusable as it stands. It has been getting better over the last few weeks but it's still awful. I can understand some disruptions in service but this has been an ongoing thing for months with no end in site. Poor planning on Sprint's part. As far as LTE being spotty, until LTE gets turned on 800 it's going to be garbage. HTC one doesn't support LTE over 800 which at the moment doesn't matter since it's not on yet but I'm hoping by the Spring new hardware will be out & LTE on 800.

centro714 said:
Just got the One, coming from s2, and love this phone. However I'm on Sprint lte now, and get very spotty coverage. It constantly switches from3g to lte, sometimes no data at all.
Of course this is a sprint issue, but is there a Rom or other ticks that may help get more consistent lte connection?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
if your on a sense rom, ##data#, click edit, enter MSL (if you dont have it, sprint should give it to you), you will see LTE settings and LTE scan settings, (dont remember exactly what they're called) Lower both those numbers to like 30 and 5 or something like that, it will scan more often and while connected to LTE should stay connected longer on a weaker signal....there is a thread on it somewhere...

2nd bad M8...sigh...

Looks like I have wound up with LTE connectivity issues on my 2nd M8. It's defaulting back to 3G and never trying LTE again. I'm in an area where the circuit fallback has already been installed and is up and running, so it shouldn't be that. It randomly just stopped working properly over the weekend. Sprint has told me there are no issues in my area, no work being done.
Is there any chance HTC or Sprint acknowledge this issue with their phones? What is happening under the hood to cause the phone to randomly get mucked up and never be able to get back to normal? Or is there a way to get back to normal?
Profile, PRL updates, rebooting, airplane mode are all (very) temporary fixes for a bigger problem. It acts and feels like a software issue, but is it something that can be reversed or does it get embedded into the firmware, never to be removed? I've tried flashing firmware multiple times without rebooting, over top of itself more than once, hoping to knock out or overwrite something wrong inside. I ran OMJ's h/k RUU last night and it connected to LTE as soon as it rebooted, but today it's right back to where it was.

FlowingAway said:
Looks like I have wound up with LTE connectivity issues on my 2nd M8. It's defaulting back to 3G and never trying LTE again. I'm in an area where the circuit fallback has already been installed and is up and running, so it shouldn't be that. It randomly just stopped working properly over the weekend. Sprint has told me there are no issues in my area, no work being done.
Is there any chance HTC or Sprint acknowledge this issue with their phones? What is happening under the hood to cause the phone to randomly get mucked up and never be able to get back to normal? Or is there a way to get back to normal?
Profile, PRL updates, rebooting, airplane mode are all (very) temporary fixes for a bigger problem. It acts and feels like a software issue, but is it something that can be reversed or does it get embedded into the firmware, never to be removed? I've tried flashing firmware multiple times without rebooting, over top of itself more than once, hoping to knock out or overwrite something wrong inside. I ran OMJ's h/k RUU last night and it connected to LTE as soon as it rebooted, but today it's right back to where it was.
Click to expand...
Click to collapse
Its really difficult to tell if its the device or the network but for the most part calling sprint is no doubt a waste of time. Over on the gs5 forums you hear the same complaints all day long. As a matter of fact, go to any sprint tri-band device forum and you will know doubt hear the same exact complaints.

Goto to a Sprint Store and Compare it Side-By-Side.
It's the only way to know for sure.

mswlogo said:
Goto to a Sprint Store and Compare it Side-By-Side.
It's the only way to know for sure.
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That may or may not make a difference, two of the same devices in the same location can be connected to different towers unless he uses an app to confirm that both are connected to the same tower and even then I have had experience with two exact devices connecting to the same tower and issues with that tower actually affected one device and not the other and nothing was defective with either device. Weird

themuffinman said:
Its really difficult to tell if its the device or the network but for the most part calling sprint is no doubt a waste of time. Over on the gs5 forums you hear the same complaints all day long. As a matter of fact, go to any sprint tri-band device forum and you will know doubt hear the same exact complaints.
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So far, I am, one of the lucky ones with an, s5 that hasnt had a bit of problems. I almost picked up the m8 over the s5 to give htc a try but keeping a watch on this forum made up my decision quick to stay with sammy. Don't get me wrong there are some s5 owners that have had problems but u m8 guys seemed to be getting hosed pretty bad.
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BubZX said:
So far, I am, one of the lucky ones with an, s5 that hasnt had a bit of problems. I almost picked up the m8 over the s5 to give htc a try but keeping a watch on this forum made up my decision quick to stay with sammy. Don't get me wrong there are some s5 owners that have had problems but u m8 guys seemed to be getting hosed pretty bad.
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Well personally, I haven't had any issues to speak of with the two m8's I have on my account.

themuffinman said:
Well personally, I haven't had any issues to speak of with the two m8's I have on my account.
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I'd say keep a very close eye on them both. My 2nd one was perfect right out of the gate and stayed perfect for 3 weeks, then suddenly just poof it's jacked. It's not as bad as my 1st, but still frustrating. The 1st one wouldn't stay connected to anything, certainly not LTE. Now mine just wants to revert to 3G as soon as it possibly can. Very strange.

My daughter gets very good data with her g2, picks up lte in areas I don't and it gets me frustrated, it sucks I don't no anybody who has a m8 to compare mine with, I'm gonna have to wait till my wife gets hers with her upgrade
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themuffinman said:
That may or may not make a difference, two of the same devices in the same location can be connected to different towers unless he uses an app to confirm that both are connected to the same tower and even then I have had experience with two exact devices connecting to the same tower and issues with that tower actually affected one device and not the other and nothing was defective with either device. Weird
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I think it's certainly possible but not that common. And if they do behave the same then he's probably ok. If they don't then he'd have to dig deeper.
One store had several M8's on display and the all behaved identical and very different from mine.
I should have 3 of them tonight to compare One being returned to sprint and one that will get sold in the end.

As a sprint rep who lives in an area that sprint spark and bands 2600 and 800 are being implemented I assure you it is not your device, it is the network. This is happening on all lg g2s, g flexs, s4 tri bands, s4 minis, nexus 5s and gs5s. Since the Soft Bank by out Sprint is doing a massive overhaul on their network. Sure service might suck ass for a few months but you'll appreciate it when its done. Hang in there, its more than likely not your device.

johnnygabe89 said:
As a sprint rep who lives in an area that sprint spark and bands 2600 and 800 are being implemented I assure you it is not your device, it is the network. This is happening on all lg g2s, g flexs, s4 tri bands, s4 minis, nexus 5s and gs5s. Since the Soft Bank by out Sprint is doing a massive overhaul on their network. Sure service might suck ass for a few months but you'll appreciate it when its done. Hang in there, its more than likely not your device.
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Man I hope your right . Waiting on my replacement now to make sure it's not my device.
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I see it daily man. From what I have been told, they had problems with cross connecting calls when implementing spark. Since then, they resolved that issue but then created the 4g data/voice connectivity issue. Meaning when you are on 4g, the tower isn't telling your phone when its receiving a call. Ever wonder why the m8 cannot talk and use data at the same time? However an s3 can. Does that phone have this issue? Nope. Its not so much our phones but more so the towers not communicating to our phone the way they should. This is why when you switch to CDMA only instead of CDMA/LTE, you receive voice calls and texts. Again, you can change this in settings/mobile data/network mode.

LTE only mode works perfect when I enable it. It connects to band 26. Switch back to LTE/CDMA and LTE refuses to connect. The reason I'm confused is because everything worked for 3 weeks straight in perfect fashion. The Sprint rep I spoke to said no work was even being done in my area. @johnnygabe89 can you help me understand how this could be?
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FlowingAway said:
LTE only mode works perfect when I enable it. It connects to band 26. Switch back to LTE/CDMA and LTE refuses to connect. The reason I'm confused is because everything worked for 3 weeks straight in perfect fashion. The Sprint rep I spoke to said no work was even being done in my area. @johnnygabe89 can you help me understand how this could be?
Sent from my 831C using Tapatalk
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Sprint Triband LTE devices do not support SVLTE (Simultaneous Voice and LTE).
In previous Sprint LTE phones, when a device was in Sprint LTE coverage it would park in both the LTE and CDMA Sprint networks at the same time. When a voice call came in, it would just go straight through to the device. And signal to the LTE network would be maintained the whole time while the call was active.
In contrast, a Sprint Triband LTE device can only stay on one technology at a time. CDMA or LTE, not both. So when a Sprint LTE Triband device is in Sprint LTE coverage it parks only in LTE. And doing so means it cannot transmit calls without Circuit Switched Fallback (CSFB) on the network side. CSFB and eCSFB (Enhanced Circuit Switched Fallback) are network controls that will allow a single mode/single path network to operate in two modes, both CDMA and LTE.
Here is how it works in the simplest way I can describe. When your Triband LTE device has an LTE signal, it cannot receive or make calls on its own. It is just using LTE data happily. However, what if someone calls you? How does it get through the CDMA network to your device? Via CSFB.
When the Sprint network tries to forward a call to your device but cannot see it via CDMA, it then checks for an LTE connection to your device. If it sees one, it tells your device to disconnect from LTE for a moment and reconnect to CDMA. Your device then jumps over to take the call on Sprint CDMA and the LTE session is interrupted. This happens very fast and seamlessly. Except for the loss of data availability. If you receive a text, the Sprint network is able to route it to your device via LTE.
Circuit Switched Fallback is a great solution to the issue of Sprint Triband LTE smartphones. But the problem here is that the Sprint network is being upgraded in Network Vision, and not all Sprint parts of the Sprint network can currently support CSFB. And it affects all Sprint Triband LTE phones
If yoou want you can read this article all the way thru

I don't think it's a circuit switch fallback issue. This morning I'm connected to band 25 and lte is working. It's when I connect to band 26 that it disconnects. So maybe its not a broken phone?
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FlowingAway said:
I don't think it's a circuit switch fallback issue. This morning I'm connected to band 25 and lte is working. It's when I connect to band 26 that it disconnects. So maybe its not a broken phone?
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Well from what I have gathered from all my reading about the issues is that Band 25 is the Sprint Triband LTE, and Band 26 is the older SVLTE (Simultaneous Voice and LTE) and may not support the CSFB and eCSFB yet.
I could be wrong in my assumption

I feel like I remember reading that band 26 is the new frequency 800
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I also think it's the network. When I first got the phone, I experienced the 3g of death, but have not experienced it much lately as it seems like Sprint is updating their network in my area.
I'm getting LTE in places now that I have never gotten on my M7.
This weekend, I went to LegoLand, which is a highly congested area, and was getting the 3g off death again, which I believe is related to the network. This is similar to when I went to Disneyland with my M7 last year and could never use Sprint service in the park to due to it being a congested area.
I find it helps to turn off roaming in areas where you get the 3g of death and just connect to the Home network. Try that and see if you get better results. It seemed to work for me this past weekend.

It appears that my area is getting LTE added to the Band 26 800Mhz frequency, though it's not fully up and running yet. So my M8 is scanning and sees that band available, and most likely prefers that band, so it connects but it's not fully implemented yet, so it kicks back to 3G. There was a moment this morning where I had fully working LTE, and lo and behold I was on Band 25, not 26.
If only there was a way to disable Band 26 on the M8 until it's totally up and running...

im facing these issues too..it sucks