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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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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.
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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.
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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.
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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.
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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.
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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.
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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
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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
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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/
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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.

Sprint Instability

Had an entire section of town go down yesterday. Showed full signal but everytime anyone attempted to make a call it showed "network failure". Even attempting to call sprint's customer service numbers.
Finally got ahold of sprint via a land line and they claimed the towers show no problems and the network wasn't congested...
It is really bad since I rely on my phone for emergency response. Anyone else notice instability like this lately?

Are you in an area where LTE is being deployed? Sometimes that happens. You dont get LTE and the 3G gets worse.
Sent from my HTCONE using Tapatalk 4 Beta

vader860 said:
Are you in an area where LTE is being deployed? Sometimes that happens. You dont get LTE and the 3G gets worse.
Sent from my HTCONE using Tapatalk 4 Beta
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Well we were on the "list" (Tallahassee, FL) but haven't seen much LTE (or any) in Tallahassee... It wasn't just 3g, the entire 1xRTT network dropped (no phone calls, no texts). I am on business so I get to use business tech (instead of consumer tech) and they viewed all the work orders for the towers in teh area. Said there was nothing currently happening that would have caused the entire network to go down and that we aren't even close to 800 SMR deployment (which pisses me off because Sprint coverage inside my office is horrible, while verizon I can get a strong 1x, 3g and LTE (my work phone and air card are all verizon)).

Same thing happened to me a while back, nothing worked, but I was roaming. It lasted for a few days, then when it started working again, I got LTE.

Same thing going on around Philly suburbs. Calls dropping like crazy and horribly slow 3g. When lte is turned on for good, does 3g go back to normal, or stay slower than the 1x speeds I get in some places?

prob tower issues it happens.. has nothing to do with sprint
Sent from my HTCONE using Tapatalk 2

thlinx said:
prob tower issues it happens.. has nothing to do with sprint
Sent from my HTCONE using Tapatalk 2
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if its sprint's tower issue, then it has everything to do with sprint
since its their towers

flex360 said:
if its sprint's tower issue, then it has everything to do with sprint
since its their towers
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no its not sprints fault its the vendors fault
Sent from my HTCONE using Tapatalk 2

thlinx said:
no its not sprints fault its the vendors fault
Sent from my HTCONE using Tapatalk 2
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Lolololol
So do we go ask the vendor to fix their towers?
It's Sprint's responsibility to make sure it deals with good vendors and that they maintain the towers well.

thlinx said:
prob tower issues it happens.. has nothing to do with sprint
Sent from my HTCONE using Tapatalk 2
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How so when Sprint's internal diagnostic tools show the tower is functioning properly (in respect to the Sprint network)?

Its possible that your area is getting 1900 network vision upgrades, which knock you out for about a week.you don't really notice the lte install because you don't have the service, but you are dependent on 1900 for voice so its not pretty. Our area just got the upgrade and we had a lot of unhappy customers, I couldnt call or text for about 6 days. I'm off for a few weeks or I would check it out for you.

No issues
Sent from my One using XDA Premium HD app

So if I am scheduled to get LTE in my area soon, what kind of behavior would the network show?
I get crappy 3G almost everywhere, where every time I try to do anything, the 3G indicator goes dark and I get a network error. Whenever I get an LTE signal, it's usually a namesake, and I get knocked down to 3G. In select spots at select times, I get super duper slow 3G: around 90kbps. Sometimes 200. VERY few times, I get around 2 megs on LTE. That only lasts a little while.
I'm scheduled to get LTE this month. When should I expect decent coverage? All the threads in the International forum about gigs of data have me PUMPED!

sauprankul said:
Lolololol
So do we go ask the vendor to fix their towers?
It's Sprint's responsibility to make sure it deals with good vendors and that they maintain the towers well.
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Towers go down. Power goes out, internet goes down.
These things happen. You call Sprint, you let them know. Even if they tell you everything looks good on their end, if they get 5 calls about the same tower, they'll send out an engineer.
Expecting 100% uptime is absurd.

sauprankul said:
So if I am scheduled to get LTE in my area soon, what kind of behavior would the network show?
I get crappy 3G almost everywhere, where every time I try to do anything, the 3G indicator goes dark and I get a network error. Whenever I get an LTE signal, it's usually a namesake, and I get knocked down to 3G. In select spots at select times, I get super duper slow 3G: around 90kbps. Sometimes 200. VERY few times, I get around 2 megs on LTE. That only lasts a little while.
I'm scheduled to get LTE this month. When should I expect decent coverage? All the threads in the International forum about gigs of data have me PUMPED!
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Normally you will just start to see 4g more often. You may some some minor odd behavior because they are up on the tower fooling around but it won't be a big outage. They do one site at a time, and once it's on it has to be tuned for optimal performance which takes a while too.
Sadly your 3g speeds are normal anymore, smart phones now days have completely overwhelmed the marginal capacity that evodo offers. Only thing they can do is to throw more RF carriers up but that can cause interface issues between cell sites and it can actually hinder performance. Areas that have complete lte toll outs do end up with much better 3g since the data hogs are now on lte, I can get about 1.5 down on 3g here where we have both lte and 1900mghz 3g network vision complete.

Same issues in Washington, DC for the Past 3 days. I sure hope its because they are upgrading the towers

Same thing happened in Houston a couple of days ago. One of the three towers in the area I work has been Network Vision upgraded, other two still in the works. Anywho, all of a sudden, no calls/texts for a span of about 20-30 minutes (longer/more in other areas). Sprint: "no issues reported in your area", I was: "yeah, I'm reporting one/some". Everything back to normal, for the time being, super-slow 3G (less than 100kbps). Thank goodness for Xfinity at home/work. I work for a preferred retailer and all we have been advised is that the upgrades are coming and will resolve and greatly improve our (Sprint's) network. Hopefully, the influx of money from the new owners will make it so. Nextel bandwidth/spectrum to be used for LTE, yes you'll need a new phone with correct radio.
Sent from my HTCONE using xda premium

I havent read much of what's going on here just skimmed through but I would like to add what I've heard.
Lately we've been having a lot of iPhones come in with data issues. Not just the 5 but 4 and 4s as well. This week alone I've seen 6 myself. Before that... Maybe 1 or 2 everyone 6 months. It's rare. And today these people plus more have come back with a worse issue. They aren't getting reception anywhere. (I'm in Washington btw). So I called my nss support team and they said as of the 17th of July sprint has been getting way more aggressive with the network vision and the iPhone's are more sensitive to this update but other device will start experience these problems and it's going to get worse all over the state till about October. The eta is October.
Sprint wants to have this network vision finished by this year so it just makes sense it would be happening in other states also.
Sent from my HTCONE using Tapatalk 2

tsdeaton said:
I havent read much of what's going on here just skimmed through but I would like to add what I've heard.
Lately we've been having a lot of iPhones come in with data issues. Not just the 5 but 4 and 4s as well. This week alone I've seen 6 myself. Before that... Maybe 1 or 2 everyone 6 months. It's rare. And today these people plus more have come back with a worse issue. They aren't getting reception anywhere. (I'm in Washington btw). So I called my nss support team and they said as of the 17th of July sprint has been getting way more aggressive with the network vision and the iPhone's are more sensitive to this update but other device will start experience these problems and it's going to get worse all over the state till about October. The eta is October.
Sprint wants to have this network vision finished by this year so it just makes sense it would be happening in other states also.
Sent from my HTCONE using Tapatalk 2
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You should have access to glance, it will tell you which sites are being upgraded and ETA's for lte and 3g nv. You have to be a lead or SM to access it.

duck9191 said:
You should have access to glance, it will tell you which sites are being upgraded and ETA's for lte and 3g nv. You have to be a lead or SM to access it.
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Click to collapse
Would be awesome to get this info for Tallahassee fl
Sent from my Nexus 7 using Tapatalk 2

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...

[Q] No more 4G

In Oak Ridge, TN I was getting 4G LTE with my EVO 4 LTE, but with the M8, only 3G. 4G has been here since last summer, although it is not on Sprint's map (what good is an inaccurate map?).
The local Sprint store said this would happen, but I do not understand why. Doesn't the new phone have all the bands of the old one?

Is the M8 a sprint spark device? If so, the newer sprint spark(tri-band LTE) devices rely on the surrounding towers to have a technology called Circuit Switch Fallback (CSFB) to quickly fall to 3G for text and calls. If your towers do not have this, the phone will stay in 3G only to make sure you can still receive those. To test if this is your problem, try enabling LTE-only mode on your device (not sure how to do this, do not own the M8) and see if it connects. If it does connect to LTE, this is your problem, and the solution is to just wait it out.

jarome1 said:
In Oak Ridge, TN I was getting 4G LTE with my EVO 4 LTE, but with the M8, only 3G. 4G has been here since last summer, although it is not on Sprint's map (what good is an inaccurate map?).
The local Sprint store said this would happen, but I do not understand why. Doesn't the new phone have all the bands of the old one?
Click to expand...
Click to collapse
I feel your pain man. I'm in Maryville and the same thing has happened to me. Been spoiled on 4G for almost a year now. Is your 3g a little spotty too since getting the m8? Mine randomly loses signal altogether.

FlowingAway said:
I feel your pain man. I'm in Maryville and the same thing has happened to me. Been spoiled on 4G for almost a year now. Is your 3g a little spotty too since getting the m8? Mine randomly loses signal altogether.
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Mine randomly loses 3g. Solution is to actually put the phone in cdma only mode. My phone wants to connect to lte and when it can't it disconnects and goes to 3g. I'm in sevierville
Sent from my 831C using Tapatalk

Strange, I've had a totally different experience in Orlando. I've received similiar or better 4G service and even connected to Spark in some areas of town. Could it be something with the network in your area?

simonsimons34 said:
Mine randomly loses 3g. Solution is to actually put the phone in cdma only mode. My phone wants to connect to lte and when it can't it disconnects and goes to 3g. I'm in sevierville
Sent from my 831C using Tapatalk
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So crazy that they've not fixed the towers with the circuit fallback yet. I remember when the g2 came out this area was experiencing this, but i figured it'd be fixed by now.

FlowingAway said:
So crazy that they've not fixed the towers with the circuit fallback yet. I remember when the g2 came out this area was experiencing this, but i figured it'd be fixed by now.
Click to expand...
Click to collapse
My contact at the store said mid April for sevier. Oak ridge surprises me though
Sent from my 831C using Tapatalk

No LTE only mode
jxr94 said:
Is the M8 a sprint spark device? If so, the newer sprint spark(tri-band LTE) devices rely on the surrounding towers to have a technology called Circuit Switch Fallback (CSFB) to quickly fall to 3G for text and calls. If your towers do not have this, the phone will stay in 3G only to make sure you can still receive those. To test if this is your problem, try enabling LTE-only mode on your device (not sure how to do this, do not own the M8) and see if it connects. If it does connect to LTE, this is your problem, and the solution is to just wait it out.
Click to expand...
Click to collapse
Just LTE/CDMA or automatic

simonsimons34 said:
My contact at the store said mid April for sevier. Oak ridge surprises me though
Sent from my 831C using Tapatalk
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The Oak Ridge store said the same thing, but I disbelieve it. Sprint should not charge extra for high-speed data if they cannot deliver it.

jarome1 said:
The Oak Ridge store said the same thing, but I disbelieve it. Sprint should not charge extra for high-speed data if they cannot deliver it.
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I'm not charged extra. I pay for unlimited and I can still use it lol...
Sent from my 831C using Tapatalk

Oh yes you do. There is $10 a month added if you have a high-speed smart phone.

jarome1 said:
Oh yes you do. There is $10 a month added if you have a high-speed smart phone.
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$10 fee is a smartphone fee, not a data fee.

It is a fee
Ascertion said:
$10 fee is a smartphone fee, not a data fee.
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I did not pay it on my HTC Hero, which was a smart phone, but not LTE. The store told me it was for phones with LTE.

I also have a framily plan. I have no fees added to my bill.

jxr94 said:
Is the M8 a sprint spark device? If so, the newer sprint spark(tri-band LTE) devices rely on the surrounding towers to have a technology called Circuit Switch Fallback (CSFB) to quickly fall to 3G for text and calls. If your towers do not have this, the phone will stay in 3G only to make sure you can still receive those. To test if this is your problem, try enabling LTE-only mode on your device (not sure how to do this, do not own the M8) and see if it connects. If it does connect to LTE, this is your problem, and the solution is to just wait it out.
Click to expand...
Click to collapse
I asked about this in the One Max forum but this one seems more active. Is there a way/setting to allow this phone to use LTE for now, like my Note 3 does, until Spark is fully implemented, or has Sprint in their infinite wisdom decided that it can only do Spark or 3G?
I can sort of understand why they didn't include the 4G WiMax and LTE antennas in phones when that switchover was made, but Spark is just the capability of using three LTE radios together. Since the LTE radios are there, I would think/hope that it's possible. Or am I missing something?

simonsimons34 said:
I also have a framily plan. I have no fees added to my bill.
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Spark phones do not have svlte radios which is simultaneous voice and LTE. This means it can run LTE and 3g at the same time. Phones that aren't spark do this. Spark phones rely on towers that csfb since this tells the phone when to switch back to 3g to get a call or text. If its not there it stays on 3g so you don't miss your calls
Sent from my SM-N900P using xda app-developers app

In a way this is retrogressing. I dont see why Sprint doesnt just pass the CDMA stuff onto the LTE network.. It wouldnt be that hard....

I have the same problem in the twin cities I either get Spark or 3G but never regular LTE. Spark is not even close to being fully deployed here so it sucks. Spark is awesome though 30+ mbps
Sent from my EVO using xda app-developers app

simonsimons34 said:
In a way this is retrogressing. I dont see why Sprint doesnt just pass the CDMA stuff onto the LTE network.. It wouldnt be that hard....
Click to expand...
Click to collapse
Voice over LTE is planned in the future for them but it requires upgrades to towers to support it.
Sent from my SM-N900P using xda app-developers app

If you happen to never get 4G in areas you previously did, Sprint may have f_cked up on activation. More specifically, they may have an incorrect UCID (SIM number) I had this problem and after a while, it dawned on me, it was possible that they messed up. Maybe that'll help someone out!?
Sent From My HTC One!

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.
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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?
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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