Anybody use Roam Control? - Sprint HTC One (M7)

I just heard about this great little app.
Seems to work flawlessly on HTC devices with the exception of a few problems on the Evo3D or Evo 4G.
There are a few places like my school where its a complete dead zone for Sprint.
Would I get verizon LTE in these dead zones or just verizon 3g? I'm rooted running ViperRom with faux kernel.
Anybody use this app? Can you please chime in?

Zexell said:
I just heard about this great little app.
Seems to work flawlessly on HTC devices with the exception of a few problems on the Evo3D or Evo 4G.
There are a few places like my school where its a complete dead zone for Sprint.
Would I get verizon LTE in these dead zones or just verizon 3g? I'm rooted running ViperRom with faux kernel.
Anybody use this app? Can you please chime in?
Click to expand...
Click to collapse
you CANNOT roam on 4g. Verizon uses different frequencies than sprint. Roam Control will only allow you voice (and possibly 1x or 3g data depending on your prl) to roam. By the way, its also not needed as there are plenty of roms that if you root and use, will giveyou the ability to force a roam only mode.

Related

Working Everything (NEEDED!)

Hi guys I'm new here to xda. Recently, I've just completed rooting my HTC one and s-off. I currently have the eclipticone rom installed but have NO DATA. Once I turn off the wifi I can't do anything on the internet or receive emails. Is there any roms out there for the HTC one with working everything for sprint?
Hi,
Maybe it's better to take a look here: http://forum.xda-developers.com/forumdisplay.php?f=2215 ?
deetea48601 said:
Hi guys I'm new here to xda. Recently, I've just completed rooting my HTC one and s-off. I currently have the eclipticone rom installed but have NO DATA. Once I turn off the wifi I can't do anything on the internet or receive emails. Is there any roms out there for the HTC one with working everything for sprint?
Click to expand...
Click to collapse
I think I saw a download for Sprint on PAC ROM , but I may be mistaken. I would first look there and then maybe look at the CM ROM. Good luck.
Sent from my HTC One using XDA Premium 4 mobile app
deetea48601 said:
Hi guys I'm new here to xda. Recently, I've just completed rooting my HTC one and s-off. I currently have the eclipticone rom installed but have NO DATA. Once I turn off the wifi I can't do anything on the internet or receive emails. Is there any roms out there for the HTC one with working everything for sprint?
Click to expand...
Click to collapse
You did something wrong. Ecliptic in the Sprint forum is 100% working. As most of the ROMs are.
raptoro07 said:
You did something wrong. Ecliptic in the Sprint forum is 100% working. As most of the ROMs are.
Click to expand...
Click to collapse
what could it be?
deetea48601 said:
what could it be?
Click to expand...
Click to collapse
pull down your settings and make sure mobile data is turned on
Fixed it
deetea48601 said:
Hi guys I'm new here to xda. Recently, I've just completed rooting my HTC one and s-off. I currently have the eclipticone rom installed but have NO DATA. Once I turn off the wifi I can't do anything on the internet or receive emails. Is there any roms out there for the HTC one with working everything for sprint?
Click to expand...
Click to collapse
Good news everyone I've solved the problem. Some how my radio signal was set to LTE/Cdma. Sprint said when set to this it trys to pick up LTE or 4g first before picking up cdma.
deetea48601 said:
Good news everyone I've solved the problem. Some how my radio signal was set to LTE/Cdma. Sprint said when set to this it trys to pick up LTE or 4g first before picking up cdma.
Click to expand...
Click to collapse
Would you mind telling me where you are located geographically? I too recently discovered this setting must be set to CDMA only in my area. It's SUPPOSED to connect to 3G when no LTE is available, but for some reason that's not working in my area. And this is a very recent change. About 12 days ago I lost data and it took 3 or 4 days of reboots, reflashes, and phone calls to Sprint before *I* fixed it myself by selecting CDMA only. Sprint never bothered to suggest the change because it's not supposed to matter. I'm baffled by this so it occurred to me you might be in the same area as me.
I'm located in va
Sent from my HTCONE using xda app-developers app
deetea48601 said:
I'm located in va
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Would you mind narrowing it down a bit? Are you in one of the areas served by nTelos? In central and SW VA, there are many areas that do not actually use Sprint towers. Sprint has some sort of partnership with nTelos and I happen to live in one of those areas. I have seen info that indicates nTelos will begin rolling out its 4G network in the latter half of 2013 and it occurred to me that the sudden necessity to set the phone to CDMA Only might be related to the early stages of this roll out. Almost as if they have started the process and are transmitting some sort of partial signal that makes the phone think there is a valid 4G connection, which therefore prevents it from looking for a 3G signal. I may be grasping at straws, but after switching to Sprint 3+ years ago on the promise of "the nations first 4G network" AND paying an extra $10 for the privilege, I would REALLY like to finally have access to something better than Sprint's abysmal service in Charlottesville. :crying:
More info on this subject can be found here:
http://s4gru.com/index.php?/topic/3732-ntelos-q1-2013-conference-call/
Your towers may be broadcasting CDMA eHRPD (basically EvDo with an extra layer to help handoff between 4G and 3G). I discovered that with the SIM card in my phone being defective, I could not get data from any towers in my area even on 3G. This was confusing to me because I thought that the SIM card was only for 4G data. When I went to check the network type under the about area in settings, it said CDMA - eHRPD. When I switched my phone to CDMA only, the network type changed to CDMA - EvDo Rev A and my data started to work.
If you are using a phone with a broken SIM this could be the problem. My phone did tell me that the SIM card was not detected though, so I knew it was a problem from the beginning. Your issues could be with the towers in your area instead if your SIM is fine.
Also, there are rumors that Sprint may overbuild into nTelos territory since nTelos was not being obedient to Sprint's demands in rolling out NV at the start. This would be good for me as I travel up central VA once a year or so
kwolf said:
Your towers may be broadcasting CDMA eHRPD (basically EvDo with an extra layer to help handoff between 4G and 3G). I discovered that with the SIM card in my phone being defective, I could not get data from any towers in my area even on 3G. This was confusing to me because I thought that the SIM card was only for 4G data. When I went to check the network type under the about area in settings, it said CDMA - eHRPD. When I switched my phone to CDMA only, the network type changed to CDMA - EvDo Rev A and my data started to work.
If you are using a phone with a broken SIM this could be the problem. My phone did tell me that the SIM card was not detected though, so I knew it was a problem from the beginning. Your issues could be with the towers in your area instead if your SIM is fine.
Also, there are rumors that Sprint may overbuild into nTelos territory since nTelos was not being obedient to Sprint's demands in rolling out NV at the start. This would be good for me as I travel up central VA once a year or so
Click to expand...
Click to collapse
Very interesting, thanks for the info! To cloud matters even more, the ROM I'm running right now, a 4.2.2 Sense 5 concoction, doesn't even *HAVE* a CDMA Only option.
And you're right about eHRPD, my phone is reporting that as well. Funny thing is, even without the ability to select CDMA Only, I'm having no problem at all with data now. Oh and one more thing that may or may not matter, I flashed a hacked PRL that forces roaming on VZW, so maybe it only works because I'm not even using nTelos' network at the moment.
All I know is that I want Sprint to get their $hit together in this area so I don't have to jump through hoops just to get reasonable service.

verizon g2 on at&t LTE???

i picked up a verizon g2 for 150 bucks (steal) and i'm running it on AT&T on hspa+ right now. i have heard that you can flash a stock at&t rom and gain LTE capeablities? is this true? I know there was a thread about doing this for t-mo users on the verizon variant but what about at&t?
I'm dying to have lte on this beast!
LTE is a different radio support. Verizon supports LTE but I'm not sure if the radios are the same. Verizon is the only carrier to really do some heavy tweaks to their rom and hardware.
The Verizon is unlocked for GSM. Honestly your best bet would be to use Tmobile since their HSPA+ service is up to like 42mpbs without the use of LTE radios. I have Verizon and LTE is nice but honestly I mostly keep it disabled just for battery savings. If you can get 3-5mbps then you are solid on a mobile. LTE is nice for WiFi Sharing with a laptop and downloads... but normal day to day facebook, twitter, emails, etc it isn't needed.
You mean use a t-mo rom or switch to t mobile? And yeah at&t hspa+ is not bad at all
so has nobody done this. on the verizon lg g2 dev thread there was a rom for t-mo users that would enable them to have LTE with the verizon g2. has this been done with at&t?
my hspa+ runs pretty good but wouldn't mind having LTE
thanks ahead of time
player911 said:
I have Verizon and LTE is nice but honestly I mostly keep it disabled just for battery savings.
Click to expand...
Click to collapse
So do you keep your data on all the time? I keep LTE on all the time beaches I honestly notice a huge difference even with basic things like web browsing and Facebook. I just turn my data off when I'm not using it. I have no use for push notifications of any kind. My email is set for manual refresh and anything else, like Snapchat, will pop up when I turn, my data on. I don't like being blown up by notifications all day. I even have Facebook notifications turned off. I'll check it whenever I feel like it. Lol
Sent from my VS980 4G using xda app-developers app
dakota510 said:
so has nobody done this. on the verizon lg g2 dev thread there was a rom for t-mo users that would enable them to have LTE with the verizon g2. has this been done with at&t?
my hspa+ runs pretty good but wouldn't mind having LTE
thanks ahead of time
Click to expand...
Click to collapse
Link to TMobile thread?
IamPro said:
Link to TMobile thread?
Click to expand...
Click to collapse
This? http://forum.xda-developers.com/showthread.php?t=2606868
Yes that is the thread i am referring too.
IamPro said:
Link to TMobile thread?
Click to expand...
Click to collapse
how could this be done for use on att? not as easy as flashing an at&t rom is it?
player911 said:
The Verizon is unlocked for GSM. Honestly your best bet would be to use Tmobile since their HSPA+ service is up to like 42mpbs without the use of LTE radios. I have Verizon and LTE is nice but honestly I mostly keep it disabled just for battery savings. If you can get 3-5mbps then you are solid on a mobile. LTE is nice for WiFi Sharing with a laptop and downloads... but normal day to day facebook, twitter, emails, etc it isn't needed.
Click to expand...
Click to collapse
Especially if you live in an area like myself where LTE is actually slower than HSPA for most people. The LTE service I am getting from AT&T is terrible in my hometown, and with the silly limits AT&T put on D800, you cannot switch from LTE to HSPA so we are swimming in LTE pool full of people like iPhone and other android users, while the HSPA+ pool is empty because AT&T is not letting anyone go down the block to use HSPA pool..

Is there a way to change PRL's

Has anyone come up with a way to change PRL's? This is my first LG device (coming from HTC EVO LTE). I miss having the option to flash a PRL which permits VZ roaming as well as being able to force roam the device like I could do on my EVO; especially since Sprint's coverage has been horrible lately (they keep blaming it on upgrades to the towers); had them send me an AirRave for the house and my signal still completely goes away every few minutes.
lostsoul77 said:
Has anyone come up with a way to change PRL's? This is my first LG device (coming from HTC EVO LTE). I miss having the option to flash a PRL which permits VZ roaming as well as being able to force roam the device like I could do on my EVO; especially since Sprint's coverage has been horrible lately (they keep blaming it on upgrades to the towers); had them send me an AirRave for the house and my signal still completely goes away every few minutes.
Click to expand...
Click to collapse
I had to recently dump Sprint for the same reason, and the Airrave was useless to me too..chicago was supposed to be one of their "best" networks, but it sucked worse than it ever did..Went with T-mobile, they paid cancel fees with Sprint, and their network is FABULOUS in chicagoland; couldn't be happier..

[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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
$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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Sent from my SM-G900P using XDA Premium 4 mobile app
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.
Sent from my SM-G900P using XDA Premium 4 mobile app
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Sent from my 831C using XDA Premium 4 mobile app
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Man I hope your right . Waiting on my replacement now to make sure it's not my device.
Sent from my 831C using XDA Premium 4 mobile app
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?
Sent from my 831C using Tapatalk
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
Click to expand...
Click to collapse
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?
Sent from my 831C using Tapatalk
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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
Sent from my 831C using Tapatalk
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

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