[Q] LTE stopped working, 3g and 2g work fine - X 2014 Q&A, Help & Troubleshooting

All of a sudden my data dropped and the only way I can get it to work is by switching it to 2g or 3g, which works fine. But as soon as I enable 4g again I just get the signal icon with an exclamation mark next to it. Rebooting doesn't fix it

kylepsp said:
All of a sudden my data dropped and the only way I can get it to work is by switching it to 2g or 3g, which works fine. But as soon as I enable 4g again I just get the signal icon with an exclamation mark next to it. Rebooting doesn't fix it
Click to expand...
Click to collapse
Maybe you have a LTE signal outage in your area...

cam30era said:
Maybe you have a LTE signal outage in your area...
Click to expand...
Click to collapse
Had a look, seems to be alright, no PSAs

Related

[Q] Can't get 4g LTE symbol on the screen!!

When I get LTE area, my phone can't get 4g LTE symbol automatically.
(I live in Virginia)
SO~~ I have to restart my phone, then I can get 4g LTE symbol!!
How can I get it automatically??
Go to airplane mode, and turn it off, it will flip the radio back on. Only way I know to do it without restarting your phone.
Sent from HTC Vivid!
I travel in and out of LTE coverage all the time; and have never had any problem with the LTE coming back on when in coverage again.
xpgba said:
When I got LTE area, my phone can't get 4g LTE symbol automatically.
(I live in Virginia)
SO~~ I have to restart my phone, then I can get 4g LTE symbol!!
How can I get it automatically??
Click to expand...
Click to collapse
have same problem....I live in VA but work in DC. I have noticed that if im in VA and the signal is low it may drop out of LTE, but once I get a good signal it come back to LTE. However, if I go into DC and come back to VA, no matter how good of a signal I have, it never switches back to LTE. The only way is to pull the battery (airplane mode doesnt do it). I spoke to an att rep and they said it might be an issue whit the phone...planning to get it swapped out; will let u know if anything changes.
I already changed my phone because it was defective one!!!! one more change?...OMG..
when i drop out of an LTE area, it takes a few minutes after getting back into LTE for it to reconnect.
my old device could get 4g lte signal easily when I was into the 4g lte area, but my new device is not!!! two device are different to connect 4g signal...

[Q] Force phone to stick to low signal LTE rather than switching to 3g?

Hey guys
So I looked around the forum for an answer to this question and i found similar topics but not exactly what I was looking for. I have the HTC one with sprint and the only issue I have with it is how it handles its preferred networks. If have 2 bars of LTE but 4-5 bars of 3g its going to stay on 3g and not switch to LTE. Is there anyway to change how it gives each signal preference. Currently it will wait till there is no 3g signal before it switches to 2g but LTE is not giving the same preference. I know it's just this phone because I had the iphone 5 before this and when I was on campus at my university it would stick to the 1 bar of LTE i had rather than switching to 3g. If I force the phone in LTE only mode then it will pick the LTE signal but then I can't call and text obviously so it's not very useful.
There are two things that the iphone 5 did which I miss but otherwise love this phone. One is getting LTE in places that has low coverage and the other is roaming on verizon network on 3g. The iphone would always roam on 3g but the htc one only roams on 2g.
Is there a way to change those things with this phone? Thanks in advance!
onelight17 said:
Hey guys
So I looked around the forum for an answer to this question and i found similar topics but not exactly what I was looking for. I have the HTC one with sprint and the only issue I have with it is how it handles its preferred networks. If have 2 bars of LTE but 4-5 bars of 3g its going to stay on 3g and not switch to LTE. Is there anyway to change how it gives each signal preference. Currently it will wait till there is no 3g signal before it switches to 2g but LTE is not giving the same preference. I know it's just this phone because I had the iphone 5 before this and when I was on campus at my university it would stick to the 1 bar of LTE i had rather than switching to 3g. If I force the phone in LTE only mode then it will pick the LTE signal but then I can't call and text obviously so it's not very useful.
There are two things that the iphone 5 did which I miss but otherwise love this phone. One is getting LTE in places that has low coverage and the other is roaming on verizon network on 3g. The iphone would always roam on 3g but the htc one only roams on 2g.
Is there a way to change those things with this phone? Thanks in advance!
Click to expand...
Click to collapse
Have you tried changing the preferred in the *#*#4636*#*# > Phone Information?
Hi thanks for the response. Yes I have messed around with that. That's how I got the LTE only option. It isn't a matter of not finding LTE signal. It's just the way the phone handles what is perferred. The phone first sees if there is a strong LTE signal and it catches that but the moment it goes to about 3 bars or less it will switch to 3g. I want it to continue sticking with LTE until the signal is gone completely like it does with 3g -> 2g.
onelight17 said:
Hi thanks for the response. Yes I have messed around with that. That's how I got the LTE only option. It isn't a matter of not finding LTE signal. It's just the way the phone handles what is perferred. The phone first sees if there is a strong LTE signal and it catches that but the moment it goes to about 3 bars or less it will switch to 3g. I want it to continue sticking with LTE until the signal is gone completely like it does with 3g -> 2g.
Click to expand...
Click to collapse
If its that way then I belive a builder will be able to forge a flashable zip for that purpose.
Terramoto said:
If its that way then I belive a builder will be able to forge a flashable zip for that purpose.
Click to expand...
Click to collapse
I see. And who do I ask for that? Or how can I build one? Sorry I am a bit of a rookie in this. I don't want to mess around with it too much but can learn. I thought there might already be some sort of hack or a modded PRL.
any new insight on this by anyone? thanks
I have lte at my work if I do lte only but it will switch to 3g when i turn everything else one because 3g signal is stronger than lte. id rather use lte however but still have my texting and calling capabilities.
onelight17 said:
any new insight on this by anyone? thanks
I have lte at my work if I do lte only but it will switch to 3g when i turn everything else one because 3g signal is stronger than lte. id rather use lte however but still have my texting and calling capabilities.
Click to expand...
Click to collapse
I know it's not an optimal solution, but have you considered using Google Voice integration in the meantime? With LTE only mode, so long as you're signed into an app of choice (Google Voice/Hangouts should be able to handle your calls and texts if you tweak at it a bit), you should have the desired service until you can get some dev help.

T Mobile Setup/Down Speeds

So i took out the Sim from the Iphone 6 im returning and popped it into this bad boy. Curious as to how you guys are setting up the phone so you get the correct LTE speeds. Im barely getting 9down whereas my gf's galaxy in the same room is getting 20+ down. wonder if i did anything wrong
It depends on location. I've seen consistent 50+ down and 20+ up with T-Mobile and default APN.
dew.man said:
It depends on location. I've seen consistent 50+ down and 20+ up with T-Mobile and default APN.
Click to expand...
Click to collapse
Nah something is def wrong. Phone is barely usable without wifi. What APN settings are you guys using for tmo?
fast.t-mobile.com it should also give you the settings automatically if you just press the "Internet settings" button.
ikon8 said:
fast.t-mobile.com it should also give you the settings automatically if you just press the "Internet settings" button.
Click to expand...
Click to collapse
Thats what i been running. Could it have something to do with the sim? Was i supposed to get a sim for an unlocked phone? Urrgh so frustrating
That's pretty slow, your gf has the tmo also? Pop her sim in your phone and compare. The sim shouldn't matter though.
ikon8 said:
That's pretty slow, your gf has the tmo also? Pop her sim in your phone and compare. The sim shouldn't matter though.
Click to expand...
Click to collapse
shes got a galaxy s4 so that wont work. however i still got the iphone 6 around. when i put the sim in that phone i get regular LTE speeds.
Oh, I just noticed in your speedtest result you're on H, not LTE. Under "preferred network mode" do you have "4G (preferred)" enabled? If you're in a border coverage area it could be that your phone is dropping you down to HSPA+ instead of staying on LTE.
For a test, go to the dialer and do *#*#4636#*#* then go to Phone Info and change it to LTE Only and test it to see if it stays on LTE and what kind of speeds you get, by default it's set to "LTE/GSM auto PRL" so if the LTE connection isn't strong enough it's going to drop you down to H+.
ikon8 said:
Oh, I just noticed in your speedtest result you're on H, not LTE. Under "preferred network mode" do you have "4G (preferred)" enabled? If you're in a border coverage area it could be that your phone is dropping you down to HSPA+ instead of staying on LTE.
For a test, go to the dialer and do *#*#4636#*#* then go to Phone Info and change it to LTE Only and test it to see if it stays on LTE and what kind of speeds you get, by default it's set to "LTE/GSM auto PRL" so if the LTE connection isn't strong enough it's going to drop you down to H+.
Click to expand...
Click to collapse
These Are my options under preffered:
wcdma only, gsm only, wcdma (preffered)/gsm and 4g(preffered)/wcdma/gsm. i dont see lte in the list
per your test, when I switch to LTE only in phone options the I lose all bars and signal totally craps out.
So when you switched to LTE Only, after a second or 2 you didn't get a 4G symbol above the signal bar? Do you ever see 4G? Mine switches to 4G within about 1 second of switching to LTE Only.
ikon8 said:
So when you switched to LTE Only, after a second or 2 you didn't get a 4G symbol above the signal bar? Do you ever see 4G? Mine switches to 4G within about 1 second of switching to LTE Only.
Click to expand...
Click to collapse
negative. just all bars gone and a big red x. you have this phone on t mobile also? did you do the us firmware update?
Yea, I'm using tmo. My phone is running 23.0.A.2.105
I got 2.93 maybe which one is 105??
I was worried during my first day of owning the phone because my Z1c showed LTE above the bars and now this Z3c shows 4G. I was worried that 4G != LTE.

[Q] Verizon Network Extender Issues

Anyone else with a Nexus 6 on Verizon using a network extender? It works fine for voice. However, I cannot get a data connection through the extender. I assume its an APN issue. All other Verizon phones are getting data fine through the extender.
Ideas?
Thanks!
I don't think mine is connecting at all to the extender at work. There is no icon change.
It works for voice. I get the beeping before a call. But it is not utilizing the extender for data. Its killing me because I'm in a fringe area for coverage and its killing my battery.
I'm running cm12 and whenever I connect to a network extender I loose LTE after I connect back to the network directly. I have to backup, flash stock ROM, let the phone activate then restore my twrp backup. Major PITA...
Sorry for resurrecting this thread, but has anyone found any resolutions to this issue?
I'm right at the edge of 3 towers, without my extender, I can barely text... Don't get me started on MMS... I will often miss calls also.
According to the Network Signal Info app, I'm always connected to the extender, but I get very weak signal. I rarely get 3G, if I do, it's even more rare for me to get data despite it showing 3G.
Usually it's 1x that eventually connects where I get data.
Sure, I can use WiFi, but text and especially MMS are issues. Who knows if I'm missing calls also...
Hopefully the Verizon firmware/radio files will work better when Verizon eventually releases it?
Try setting your phone to 3g instead of lte. Should jump on the extender for data. On mine it won't switch automatically.
goinflyn said:
Try setting your phone to 3g instead of lte. Should jump on the extender for data. On mine it won't switch automatically.
Click to expand...
Click to collapse
I did try that a few times, I haven't went too in depth with that. But if I recall correctly, changing that setting just left a "!" in the signal bars, no data. How's your signal strength on the extender?
It's half way up the triangle. Orange on the signal strength under battery. But it works.
goinflyn said:
Try setting your phone to 3g instead of lte. Should jump on the extender for data. On mine it won't switch automatically.
Click to expand...
Click to collapse
That doesn't work for me. 3G is HSPA on the N6, not EvDo like the extender requires. My workaround is connecting at home via wifi, then switching data to 1X. That solves calling, data, and SMS/MMS issues.
From what I've read in other posts regarding Verizon extenders, they are only for basic text and calls, NOT Data. Call Verizon support to confirm if you want a definite answer though.
Sent from my SM-P600 using XDA Premium HD app
Not true. It does data fine at both 1x and EvDo 3g. As I said, problem is, the N6 doesn't appear to work with 3g EvDo data.
greekstile said:
Not true. It does data fine at both 1x and EvDo 3g. As I said, problem is, the N6 doesn't appear to work with 3g EvDo data.
Click to expand...
Click to collapse
Correct. I've had my extender since 2011. Without data, MMS as well as certain other Verizon features would not function.
EV-DO working now!
greekstile said:
Not true. It does data fine at both 1x and EvDo 3g. As I said, problem is, the N6 doesn't appear to work with 3g EvDo data.
Click to expand...
Click to collapse
I just flashed the Android 5.1 radio on my 5.0.2 ROM running Chroma.
I can confirm that EV-DO Rev. A works now on the Verizon Network Extender.
When I have the network mode set to Global or LTE it keeps falling off 3G. I've set the network mode to 3G and it has stuck for a solid 30 minutes now.
Hopefully the stock 5.1 ROM will fix the 3G issue in LTE or Global modes, so it doesn't try to connect to the weak outside signals. But at least we get EV-DO now instead of just 1x!
kvnhmmd said:
I just flashed the Android 5.1 radio on my 5.0.2 ROM running Chroma.
I can confirm that EV-DO Rev. A works now on the Verizon Network Extender.
When I have the network mode set to Global or LTE it keeps falling off 3G. I've set the network mode to 3G and it has stuck for a solid 30 minutes now.
Hopefully the stock 5.1 ROM will fix the 3G issue in LTE or Global modes, so it doesn't try to connect to the weak outside signals. But at least we get EV-DO now instead of just 1x!
Click to expand...
Click to collapse
So are you on a VZW device?
My device says call cannot be completed when I #48 from my Google N6
three west said:
So are you on a VZW device?
My device says call cannot be completed when I #48 from my Google N6
Click to expand...
Click to collapse
Bought my N6 from Motorola around February.
Dialing #48 tells me I'm under network extender coverage.
kvnhmmd said:
Bought my N6 from Motorola around February.
Dialing #48 tells me I'm under network extender coverage.
Click to expand...
Click to collapse
hmm, thanks, no 3G option in my preferred network types on the stock rom.
I wonder if the network extenders actually validate the IMEI and that's why its not working. It worked on my old XT926.
I also have been fighting with this since getting my Nexus 6 last week...they say dial *48 and it will tell you if you are under extender coverage...which I am, yet a tier 4 tech tries to call me and it goes direct to vm.
I have changed units...still same....frustrated as heck.
I'm confused. If you have a network extender, you have Wi-Fi within the same range as the network extender. Why would you want to use 3G for data instead of Wi-Fi? Even the slowest Wi-Fi would be better than 3G data.
nhizzat said:
I'm confused. If you have a network extender, you have Wi-Fi within the same range as the network extender. Why would you want to use 3G for data instead of Wi-Fi? Even the slowest Wi-Fi would be better than 3G data.
Click to expand...
Click to collapse
In my case it's a restricted work wifi
Sent from my Nexus 10 using Tapatalk

Cell signal keeps reverting to 3G

Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Also at home where I have full signal LTE and H+, it will choose H+ over LTE.
Had same problem. Switched sim slot to the other. 4g again. Try IT?
Did you try different APN settings? I'm guessing you already checked the preferred network option.
Sent from my MIX using Tapatalk
APN settings are good and I can get LTE if I flip the radio on and off...it just always wants to revert back to 3G at some point. Same thing happens in sim card slot 1 or 2
pacattack81 said:
Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Click to expand...
Click to collapse
Which rom are you on? I remember there's a specific rom that has a bad modem file. Trying updating to the latest version.
Maybe you can solve it by going to APN settings and set APN protocol -> IPv4 and APN roaming protocol -> IPv4 . That worked for me. I had the same issue.
Or try IPv4/IPv6. That's network related and maybe IPv4/IPv6 is correct for you.
I have to set it every time I flash EU or EPIC rom.
Good luck.
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
dennygreen said:
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
Click to expand...
Click to collapse
Firmware update?
james1089 said:
Firmware update?
Click to expand...
Click to collapse
I've updated it, and it's all the same. Once in a great while it will switch over to LTE on its own, but 99% of the time it will just sit on H+ forever even though I know the LTE is fine wherever I go.
I guess this is just how it's going to be.
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
dennygreen said:
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
Click to expand...
Click to collapse
That's interesting. I guess Xiaomi fixed the bug in one of the releases. I wonder why you had to wipe everything though. What if we try to flash the latest modem. Is there a link to that? Would that work?
Would modem be the same as firmware? There's a thread on here that has those. None of them did anything for me.
My LTE problem is isn't fixed after all I guess. Once it loses LTE, it still never reconnects to it on its own and goes to H/H+ forever.
I guess the only thing that I've fixed is that it actually switches back to LTE after a phone call.

Categories

Resources