Database Users

No signal on T-Mobile

Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
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Sent from my Nexus 4 using xda app-developers app

castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium

castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
do you have your phone info set to lte only?

How do you check that? *#*#4636#*#* ? If so that's on wcda prefer
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Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Did your happen when you first got it or after you had it for awhile? And what's the RMA process
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The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
Sent from my Nexus 4 using xda premium

Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.

Exodian said:
The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
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Thank for your help that what I'll have to do only problem is I traded an s3 for this phone on CL so if it hardware I think I'm SOL but thanks for your help
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kthejoker20 said:
Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.
Click to expand...
Click to collapse
I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
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castro08 said:
I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
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Click to collapse
Try getting a new Sim from t mobile and reflashing the radio
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Exodian said:
Try getting a new Sim from t mobile and reflashing the radio
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Thanks will do but why would my sim card work on other phones and other sims not work on mine
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castro08 said:
Thanks will do but why would my sim card work on other phones and other sims not work on mine
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Most likely wouldn't but it would be one more "possible" problem eliminated.
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Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I'm currently going through the RMA process over virtually the exact same issue. However, I've been running franco's nightlies lately and up until he restored the HSIC/wifi stuff to stock in r154 I was actually experiencing less data drops and rapid tower swapping (constantly going from 3g to H and back rendering consistent data inoperable). *shrug* I feel as if it's something in the hardware on the cusp of failing because sometimes it does it more and sometimes it does it less. It's rather weird. I'm also on T-mobile towers through an MVNO (Straight Talk).

I just cancelled and switched to ATT go phone.
I have RMA'd 2 devices, tried multpie new simcards, relflashed, tried new radios, and nothing worked.
It no longer switches from 3g to H on ATT network.
It stays in H constantly.
Also, no more signal drops or loss of signal.
I have 100% signal all the time now.
The data is a little more expensive, but worth it for the coverage so far.
It's not your phone, it's the tmobile network.

No data on 4.3 T-Mobile!

I can't get data to work on any 4.3 ROM the 4g comes out but it says data error
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kepapas said:
I can't get data to work on any 4.3 ROM the 4g comes out but it says data error
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switch it to hspa+, i know in nyc they are working on the network in a few placrs, maybe they are working on lte wherever you are.

Have you checked the APN settings? From that screen tap on Mobile Networks and then Access Point Names.

raptir said:
Have you checked the APN settings? From that screen tap on Mobile Networks and then Access Point Names.
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Click to collapse
if the apn was wrong, it wouldnt connect to lte. the same happened to me last night. i called tmobile and customer service told me there are no issues. then i called back and talked to tech support, and they told me that tmo is working on the network. several hiurs later data started fliwing through lte.

simms22 said:
if the apn was wrong, it wouldnt connect to lte. the same happened to me last night. i called tmobile and customer service told me there are no issues. then i called back and talked to tech support, and they told me that tmo is working on the network. several hiurs later data started fliwing through lte.
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Click to collapse
Its working solid on 4.2
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kepapas said:
Its working solid on 4.2
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try it again on 4.3.. remember, youll need one of the two hybrid radios for android 4.3(.27/.84 or .33/.84) http://forum.xda-developers.com/showpost.php?p=36400943&postcount=1

simms22 said:
try it again on 4.3.. remember, youll need one of the two hybrid radios for android 4.3(.27/.84 or .33/.84) http://forum.xda-developers.com/showpost.php?p=36400943&postcount=1
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I did all that I have rasta 4.3 backed up I restored it and still says network error only on 4.3 its ****en weird even changed the apns to regular h+ still network error changed it back to fast.T-Mobile still network error refashed it cleared data and cache installed gapps still network error I restored back to rasta 4.2 everything is dandy. It was working fine early when driving to work .
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kepapas said:
I did all that I have rasta 4.3 backed up I restored it and still says network error only on 4.3 its ****en weird even changed the apns to regular h+ still network error changed it back to fast.T-Mobile still network error refashed it cleared data and cache installed gapps still network error I restored back to rasta 4.2 everything is dandy. It was working fine early when driving to work .
Sent from my Nexus 4 using xda premium
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if it was working fine when you were going to work, then its probably just a tmobile issue. as i said, last night the same happened to me. i even got my bars to turn blue(sometimes), but no data flow. it started about 9pm, and data started flowing again around 4am.

Just HSPA and no LTE issue.

I have an unrooted ATT S4 and an unrooted Note 3 on T Mobile which is unlocked that I use on ATT.
With the ATT simcard inside the S4 I only receive HSPA and no LTE service, with the same simcard in the Note 3 I get LTE service ( according to network signal info app ). I tried checking my APN settings on the S4 and it looks okay, infact I created another just to make sure.
If I try the *#*#4636 etc etc command the S4 shows WCDMA preferred only. It does not allow me to change to anything else. However, if I put another ATT simcard in the S4 LTE works, anyone care to explain what is going on ? This only started when I first went to review the previously mentioned network radio mode menu command.
Thanks.

I would think you have a bad SIM card. Very strange it would work in one and not the other.
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You may have to factory reset the s4

Any luck on that yet? I'm very curious what the problem is with it.
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agent929 said:
Any luck on that yet? I'm very curious what the problem is with it.
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No luck, the unit would only select WCDMA preferred with my ATT sim card inside of it. I did factory reset multiple times to no avail.

Limeybastard said:
No luck, the unit would only select WCDMA preferred with my ATT sim card inside of it. I did factory reset multiple times to no avail.
Click to expand...
Click to collapse
Did you ever try a brand new SIM card?
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agent929 said:
Did you ever try a brand new SIM card?
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No sir, I did not. I have sold the S4 as I bought a note 3 earlier this month. The new owner tested it and he got LTE!

Limeybastard said:
No sir, I did not. I have sold the S4 as I bought a note 3 earlier this month. The new owner tested it and he got LTE!
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Click to collapse
Im gonna go with an issue with the sim...how about you?
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agent929 said:
Im gonna go with an issue with the sim...how about you?
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Can't be anything else can it ? I agree.
When the sim was out the S4 would default to its stock radio. I believe it was something like gsm lte auto prn or something.
Sent from my SM-N900T using Tapatalk

I had the same issue..it's your sim card....I went to my Fido store...talked nicely to the guy at the counter and he gave me a LTE sim card which he normally charges $10 for....problem solved...if your phone supports the right lte band and the network operates on the same band...it's always the sim card

bimjunk said:
I had the same issue..it's your sim card....I went to my Fido store...talked nicely to the guy at the counter and he gave me a LTE sim card which he normally charges $10 for....problem solved...if your phone supports the right lte band and the network operates on the same band...it's always the sim card
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Click to collapse
bs.. i have tmobile and using it on att .. It is not alwlays the sim card. I had to change the apn settings and also go into the menu and enable lte.. it was set to wcdma as max by default.

[Q] Cannot get a signal AT ALL

Please help!!! I can't get a mobile signal for the life of me. I get wifi and LTE, but no 2G or 3G??? I've factory resetted, flashed modems only, tried different roms. Everything. I'm starting to think it might be the hardware. If anyone has any knowledge, please share. As of now I'm back on NAE baseband since the NG2 upgrade started all this. Or maybe it was mobile odin. IDK it was one of those.

I would rather have lte than 2 or 3g. You could always change the settings for mobile networks to only pick up 3g and see if that works.
Sent from my SPH-L720 using XDA Free mobile app

But I cannot make a call at all. There is no 3G period. Tried everything

Have you tried removing the sim card and powering the phone up without it?
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beezie42 said:
Have you tried removing the sim card and powering the phone up without it?
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And what is that supposed to do?

SB03 said:
And what is that supposed to do?
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Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
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beezie42 said:
Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
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That didn't work. But I fixed it using ##72786#

Lost data on calls.

Have 4g when not on call. 1x on call. I have a us unlocked running on verizon. Latest twrp. Have tried Venom and ice. Loafing leesroid now to try. Advanced calling also messed up. I have no wifi calling option. Called verizon and all turned on. Have tried format data. Not sure what to try next. I'm s-off and unlocked. Any ideas?
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Also when I ran ice was first time I got video options on call. Grayed out tho. I'm sure I missed something but can't find it.
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losthyway said:
Also when I ran ice was first time I got video options on call. Grayed out tho. I'm sure I missed something but can't find it.
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Remove VOLTE/Advanced calling from your account. Flash the RUU. Factory reset using the stock recovery. Activate advanced calling from the phone itself (not the online verizon portal). Reboot phone after 5 minutes. Test.

dottat said:
Remove VOLTE/Advanced calling from your account. Flash the RUU. Factory reset using the stock recovery. Activate advanced calling from the phone itself (not the online verizon portal). Reboot phone after 5 minutes. Test.
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Click to collapse
So, go to website. Remove advanced calling and anything volte related. Then do phone and let phone reactivate everything? Just want to be clear. I respect your advice and have used your stuff on my phone for awhile.
Sent from my HTC6525LVW using Tapatalk

losthyway said:
So, go to website. Remove advanced calling and anything volte related. Then do phone and let phone reactivate everything? Just want to be clear. I respect your advice and have used your stuff on my phone for awhile.
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Click to collapse
Yes. That's the cleanest method for testing.
Sent from my HTC6545LVW using Tapatalk

K. Doing it now. I will reply here when done. Thank you very much.
Sent from my HTC6525LVW using Tapatalk

No luck. Turned off everything. Wiped phone. Formated data. Used your ruu.exe to flash. Still 1x on calls and no advanced calling. Activated using phone only once rebooted. Any ideas?
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With stock software lost the video option on all. Was always grayed out anyway. And when rebooted the option to activate was grayed out. Did not get the verizon page to activate like on ice rom.
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Did it all again. This time worked better. Got new activation pages never had before. About activating after 5 minutes. Did that. Says added new features. But 1x still on calls and no video options on calls.
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losthyway said:
Did it all again. This time worked better. Got new activation pages never had before. About activating after 5 minutes. Did that. Says added new features. But 1x still on calls and no video options on calls.
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Click to collapse
Did you reboot yet?

Yes, a few times.
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So after using dottat ruu.exe for . 22 and seems like after it settled I have volte working again along with wifi calling. Never seen a toast before that I was on wifi calling. Also HD calling working. No notifications for HD buy can hear the difference when I call people who have edge 7 and iPhone 6. Still running complete stock setup and hoping will stay when I flash Venom. Doing a backup for sure first. Still no video calling.
Sent from my HTC6545LVW using XDA-Developers mobile app

losthyway said:
So after using dottat ruu.exe for . 22 and seems like after it settled I have volte working again along with wifi calling. Never seen a toast before that I was on wifi calling. Also HD calling working. No notifications for HD buy can hear the difference when I call people who have edge 7 and iPhone 6. Still running complete stock setup and hoping will stay when I flash Venom. Doing a backup for sure first. Still no video calling.
Sent from my HTC6545LVW using XDA-Developers mobile app
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Click to collapse
Good deal.. I'm strongly believing that the VZW/HTC volte issues have finally been put to rest. This was a problem on the m9 as well and is no longer.

dottat said:
Good deal.. I'm strongly believing that the VZW/HTC volte issues have finally been put to rest. This was a problem on the m9 as well and is no longer.
Click to expand...
Click to collapse
You think if I flash Viper it will stay?
Sent from my HTC6545LVW using XDA-Developers mobile app

losthyway said:
You think if I flash Viper it will stay?
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Click to collapse
Yes.. I think it should as long as they have included the appropriate system files. (they normally DO).

dottat said:
Remove VOLTE/Advanced calling from your account. Flash the RUU. Factory reset using the stock recovery. Activate advanced calling from the phone itself (not the online verizon portal). Reboot phone after 5 minutes. Test.
Click to expand...
Click to collapse
I've tried this 5 times with a couple different ruu's with no luck. I first noticed this happening after I tried flashing leedroid nougat Rom and got no service on it so I restored my backup and got service but no data on calls, just 1x. When I go to the vpn, in the list of bearers, mine just shows ehrpd and LTE. My gf pixel shows gprs, ehrpd, hsupa, hspap, hspa, hsdpa, LTE, umts, and edge. The rest of the vpn settings are the same. I have also noticed when I go into settings, about, network that it sometimes shows "3107" in the operator section. Any other ideas?
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Evocm7 said:
I've tried this 5 times with a couple different ruu's with no luck. I first noticed this happening after I tried flashing leedroid nougat Rom and got no service on it so I restored my backup and got service but no data on calls, just 1x. When I go to the vpn, in the list of bearers, mine just shows ehrpd and LTE. My gf pixel shows gprs, ehrpd, hsupa, hspap, hspa, hsdpa, LTE, umts, and edge. The rest of the vpn settings are the same. I have also noticed when I go into settings, about, network that it sometimes shows "3107" in the operator section. Any other ideas?
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Click to collapse
Did you wipe the radios? That's gonna be your fix
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dottat said:
Did you wipe the radios? That's gonna be your fix
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Click to collapse
Wipe radios? Flashing firmware and/or ruu doesn't do that?
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Evocm7 said:
Wipe radios? Flashing firmware and/or ruu doesn't do that?
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Click to collapse
Nope.
Fastboot erase modemst1
Fastboot erase modemst2
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dottat said:
Nope.
Fastboot erase modemst1
Fastboot erase modemst2
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Click to collapse
Damn, I hate fastboot lol. Had a hell of a time getting my computer to see my 10 last time. Plus I use it so little I have to watch YouTube videos and how to every time I have to set it up again. So just wipe those two then reflash RUU?
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