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T-Mobile network disconnection

Hi all,
First time poster, long time lurker I'd just like to say thanks to everyone in the community. You guys rock.
That said, I am having a minor issue with my G1. I have T-Mobile & my phone is SIM unlocked (I don't know if that would make a difference) and currently running JFv1.5 with the latest radio (2.22.19.26I). The problem is that when I disconnect from a wireless network, my data connection to T-Mobile doesn't pick back up. When I go into Call Settings / Network Operators I let it search for networks and sometimes my phone will have to Re-Register on T-Mobile and other times it will say that its already registered to T-Mobile but the data connection still won't work. The only thing I've found to solve that is a reboot of the phone.
This has happened a few random times when I was on RC33 and one of the Haykuro builds but it has become more frequent since I've updated to JFv1.5. Also, I dunno if it helps to mention but I went to a T-Mobile store earlier this week & swapped out the SIM card with a new one and have gotten the same results.
Is anyone else having this problem? I've searched to no avail and was curious. Thanks.

dissconnect
That's just typical crappy T Mobile service have the same prob here since I'm not close to a T Mobile tower when it loses web access it dumps the connection to reconnect

So that's it? I should chock this up to my carrier's signal being ****ty in random places? No one else has had this issue at all?

padalabra said:
So that's it? I should chock this up to my carrier's signal being ****ty in random places? No one else has had this issue at all?
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Click to collapse
I am having this issue. Never had a problem until I updated the radio to the latest version

I have had the new radio since the JF build with cupcake. My signal was great until yesterday. It will go from the lowest to highest in the case of the bar. When I reboot my phone it takes much longer to connect to the network. BUT I think my issue is with the fact my market (Columbus, Ohio) was rumored to get 3G by this june. So I am guessing its just TMobile doing the upgrades and whatever they need to do to impliment the 3G rollout.

lately ive been having horrible service. dont know if it has to do with the new LX being released.

Hi,
I am on 5.02h and was having random disconnects on .26 radio.
I went back to .22 saffaire radio and my connection is more stable now.
I am not sure if others have experienced this as well.

I have flashed my phone yesterday with latest from Haykuro with CUPCAKE. (NO SD APPS)
Phone is running a little slower and I started having the issues with the DATA connection.
In the middle of the Web page loading, the phone looses data connection and I am only left with ability to use voice. The data connection comes back in a few minutes and same thing happens as soon as start using the data connection again.
I do not know if previously stable connection at my location all of a sudden became bad or the new build is causing this.......

just to add
Not to dissenlighten people here but t mob has crappy serivce to rural areas. I myself live in brunswick md usa. I have had. 2 bars since I first got this phone with rc30 with constant dumps to no signal all the time when it upgraded to rc33 still the same thing. Then I rooted my to jf rc33 still the same thing. After that I used jf 1.5 and it still craps out. When I go 20 mins to the north to frederick,md I get full bars and no dissconnects so if it where a radio issue there would have been some kinda difference between radio updates. I myself am a ham operator so I should know how radio signal works so when I chock it up to t mobs crappy service I do not do this lightly since the nearest tower is 20 mins either way from me. People need to stop blaming other peoples builds for this issue since the radio update is from google. If I pop a att sim I get full bar and no dissconnects cause the tower they use is closer that's how I know it's a t mob problem not an issue with the radio. Remember troubleshooting is the best way to see where the problem is. Till t mob puts up more towers and fixxes the packet loss to the phone to remedey this then we will all have crappy service which does not seem to be in the near future for anyone.

I had a similar problem when I was on stock RC30. I called in to tech support and they set up a new APN on the phone so it would switch back to EDGE faster if I lose the wifi connection. I would suggest if you're not around stable wifi, just turn it off.

nexus 5 signal issue

Hi Guys,
I have a 16gb Nexus5, with stock 4.4.4
Have a strange issue of signal getting lost during the call.
After every 5-7 mins the calls get dropped as signal level goes down to zero.
Is there any work around for this? Anyone else facing this issue?
PS : using the device in India, with Vodafone network.
Regards
Mukesh

mukeshkb4u said:
Hi Guys,
I have a 16gb Nexus5, with stock 4.4.4
Have a strange issue of signal getting lost during the call.
After every 5-7 mins the calls get dropped as signal level goes down to zero.
Is there any work around for this? Anyone else facing this issue?
PS : using the device in India, with Vodafone network.
Regards
Mukesh
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Click to collapse
there is a INDIAN N5 post somewhere too!
Anyways: It seems it's a carrier related problem ...

mukeshkb4u said:
Hi Guys,
I have a 16gb Nexus5, with stock 4.4.4
Have a strange issue of signal getting lost during the call.
After every 5-7 mins the calls get dropped as signal level goes down to zero.
Is there any work around for this? Anyone else facing this issue?
PS : using the device in India, with Vodafone network.
Regards
Mukesh
Click to expand...
Click to collapse
try a different modem http://forum.xda-developers.com/goo...t/modem-nexus-5-flashable-modems-efs-t2514095 or get a new sim may be the golden plates is damaged so walk in at vodafone store may help to get sim replaced a get a proper micro sim as in my area there are issues with voda but not with airtel.
so u need to see where the actual prob lies

11.0-xnph44s signal problem

Recently just updated to 11.0-xnph44s through OTA, but today all in a sudden I lost signal. I know my home has bad signal, sometimes 1 bar or none.
But when i get out the house, mostly the phone will pick up full bar immediately. This morning when I was on my way to work. Phone got no signal at all. I had to reboot the phone.
Does anyone have problem like that ? Is it my phone having problem or the 11.0-xnph44s update?

benzso63 said:
Recently just updated to 11.0-xnph44s through OTA, but today all in a sudden I lost signal. I know my home has bad signal, sometimes 1 bar or none.
But when i get out the house, mostly the phone will pick up full bar immediately. This morning when I was on my way to work. Phone got no signal at all. I had to reboot the phone.
Does anyone have problem like that ? Is it my phone having problem or the 11.0-xnph44s update?
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Click to collapse
I'm on the 44S modem and have no such issue. However I cannot pinpoint your issue, but can only say that modems work differently per person per location. You can reflash the 38R or 33R modems in the modem thread here on XDA, but you will need to have an unlocked bootloader to issue fastboot commands.

Nexus 5 - Android 5.1 LMY47D Radio Issues

Hello all,
Sparse poster, long time lurker. I just upgraded my Nexus 5 (purchased from Google, on T-mobile) from 5.0.1 to 5.1 using the OTA link available from AndroidCentral and though no other problems have been found, I am having some trouble with the radio now. When I'm on a call now, the data connection drops from LTE to GPRS, showing the 'G' next to the signal strength icon. Before upgrading from 5.0.1, this would drop to HSPA ('H') at worst. I came to expect that the 5.1 update would enable VoLTE since I thought the N5 was capable of this and the upgrade enabled VoLTE on the N6 for a buddy of mine. Either way, I think GPRS is a pretty bad when I need a data connection while on a call.
I tried to reflash the bootloader, radio, boot and system img's manually and nothing changed. Any ideas? Anyone else having this issue?
Thanks!

hi, I encountered same issues with tmobile LTE after I sideload to android 5.1.

cocopete5243 said:
Hello all,
Sparse poster, long time lurker. I just upgraded my Nexus 5 (purchased from Google, on T-mobile) from 5.0.1 to 5.1 using the OTA link available from AndroidCentral and though no other problems have been found, I am having some trouble with the radio now. When I'm on a call now, the data connection drops from LTE to GPRS, showing the 'G' next to the signal strength icon. Before upgrading from 5.0.1, this would drop to HSPA ('H') at worst. I came to expect that the 5.1 update would enable VoLTE since I thought the N5 was capable of this and the upgrade enabled VoLTE on the N6 for a buddy of mine. Either way, I think GPRS is a pretty bad when I need a data connection while on a call.
I tried to reflash the bootloader, radio, boot and system img's manually and nothing changed. Any ideas? Anyone else having this issue?
Thanks!
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Click to collapse
Tried downgrading to previous radio version?

I use kitkat radios on lollipop

I'm not having any problems with LTE. I'm on T-Mobile.
Sent from my Nexus 5 using XDA Free mobile app

My stock 5.1 radio was very broken. Phone process froze, no deepsleep, losing connection and sim, people could not call me. Very bad.
Using 5.01 radio now, its much better.
My provider is Vodafone NL.

Wrong signal strength reporting on G920i?

Weird issue I'm having on a G920i. In Settings -> About Device -> Status, the signal strength is being reported incorrectly. When I first boot the device, it will show accurately and will vary from -90 dBm to -100 dBm when I am at my house, which is consistent with every device I've ever owned. However, after 30-45 seconds, it will start reporting at "-113 dBm 0 asu" and it will simply stay there and will never change, even as I move about. The number of bars in the signal strength icon on the status bar will even change, but in the Status menu, signal strength simply stays at "-113 dBm 0 asu" permanently. Connectivity seems to be fine--I have no problems making calls, browsing the web, etc. The signal strength in the Status menu simply seems to revert to and stick at 113 dBm 0 asu with no explanation or other impact on the phone.
For what it's worth, I've tried both the New Zealand and Singapore AOD1 firmwares from Sammobile.com. Same problem on both. I'm on AT&T in the U.S.
Anybody else seeing anything like this?

Yes it seems both the g920i and g920f all have this problem. Every single device. Please get in contact with Samsung about it, the more people that complain the more likely it will be fixed.

@mupet0000 & @phositadc I've seen you guys in a few forums talking about the Galaxy S6 SM-G920I signal issues... Mine is the same! Swapped 2 phones already and they have awful lte reception... I was hoping a different modem/baseband would help but it looks like it doesn't....plus a few soft reboots as well what's going on? Have you guys experienced any reboots? Can this be fixed with a software update?

OK checked mine and its yes your right. -113 in status however if you type *#0011# in your dialer you'll see the better reception reported. Interestingly this did not happen when I was on the Cricket towers(At&t). I just switched to T-Mobile and I now have the -113 status. My speeds are great but I can't side-by-side compare the radios to anything to know if there is a real problem.
Sent from my SM-G920I using XDA Free mobile app

Kjc99 said:
@mupet0000 & @phositadc I've seen you guys in a few forums talking about the Galaxy S6 SM-G920I signal issues... Mine is the same! Swapped 2 phones already and they have awful lte reception... I was hoping a different modem/baseband would help but it looks like it doesn't....plus a few soft reboots as well what's going on? Have you guys experienced any reboots? Can this be fixed with a software update?
Click to expand...
Click to collapse
No reboots here. I flashed the aod3 modem last night and things seem a little better on AT&T. On the aod1 modem, I was not getting LTE in a bunch of places that I've always had LTE before. I know the g920i has frequency support for AT&T LTE bands, and I do get LTE, but I must say so far the experience has not been as good as other LTE phones I've had. Not sure if that's the modem firmware to blame or the hardware itself. Probably firmware.
Sent from my SM-G920I

Hey all, I'm in the UK and I have the SGS6 edge on the 3 network here. I use my phone for tethering at all times as I do not have wifi in the house. with my SGS5 before this I could easily run my PC , Tablet my son mobi and his gaming PC all at the same time with no issue. The S5 would run a full signal and load very quickly HD content.
My brand new S6 is disapointing singnal wise from straight out the box. I noticed my signal level fluctuating up and down but very rare dose it show a full signal level. and as for teathering I am finding it very hard to live with.
I will be suprised if Samsung sort this out with firmware. I just had a 150 MB firmware update yesterday and my signal level is the same.
I remember my Nokia N96 having this same fault, and although it was all over the internet back then, Nokia did nothing in all the firmware updates I had. I was going to sell my pristine 7 month old S5..... but I think I will hang on to it for now.

Hey guys, I am on the latest OTA released by Samsung (AOE3 built May 7th) and the problem is still not resolved. LTE signal still awful and LTE signal strength still -113. So far so bad. I have contacted Samsung again, and tomorrow I have a phone call with their support where they will remotely access my phone so I can show them the problem. I will show them and see how it goes, and I'll report back here.
I will make it clear to them that the signal strength is worse than my 2 year old S4, and I will demonstrate the incorrect signal strength value to the support agent. If they tell me it's a non issue or they make some silly excuse instead of investigating, I will simply sell the S6 and get another phone.
This is a huge issue and I'm disappointed that there aren't many people noticing this or reporting it to Samsung. The more popular the S6 gets, the more people will notice that their old phone holds a better signal.

Loz1 said:
Hey all, I'm in the UK and I have the SGS6 edge on the 3 network here. I use my phone for tethering at all times as I do not have wifi in the house. with my SGS5 before this I could easily run my PC , Tablet my son mobi and his gaming PC all at the same time with no issue. The S5 would run a full signal and load very quickly HD content.
My brand new S6 is disapointing singnal wise from straight out the box. I noticed my signal level fluctuating up and down but very rare dose it show a full signal level. and as for teathering I am finding it very hard to live with.
I will be suprised if Samsung sort this out with firmware. I just had a 150 MB firmware update yesterday and my signal level is the same.
I remember my Nokia N96 having this same fault, and although it was all over the internet back then, Nokia did nothing in all the firmware updates I had. I was going to sell my pristine 7 month old S5..... but I think I will hang on to it for now.
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Click to collapse
I think it is a widespread issue... I always have 1 bar lte and under my signal status it say - 113dbm which is zero service... It never moves... I'm gonna try custom rom and see if that help but it obviously a antenna/modem baseband issue... Also someone mentioned it could be because the Galaxy S5 uses Cat 4 lte and the S6 uses Cat 6.....its very disappointing! Hopefully it gets fixed or I'll return to the S5...i really want to like this phone..... But Samsung is making it hard to

I don`t think there is anything wrong with the signal. even if I only have 1 bar the phone is perfect during calls and my LTE/4G download speed is even over the provided speed my carrier provides, I think it`s just a bug that it`s showing less signal then what it actualy has.

johanbiff said:
I don`t think there is anything wrong with the signal. even if I only have 1 bar the phone is perfect during calls and my LTE/4G download speed is even over the provided speed my carrier provides, I think it`s just a bug that it`s showing less signal then what it actualy has.
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Click to collapse
This is true. It's simply a bug that shows the wrong signal strength - mine shows -113 but I'll have 3 bars so that makes no sense. However, if you ARE getting a bad signal, that is a different issue altogether.
(btw I started a thread about this already several weeks back)

Spoke to Samsung on the phone, they didn't need to remote access my phone to see the issue. They had an S6 in their office and they told me they saw the signal at -113dBm just like mine. They say they have passed this onto the relevant team and hopefully it will be fixed in an OTA and I should stick to the United Kingdom BTU firmware (the correct firmware for my region).
We will see if this gets resolved. They definitely know about the problem now and have seen it with their own eyes, so I'm hopeful.

Japultra said:
This is true. It's simply a bug that shows the wrong signal strength - mine shows -113 but I'll have 3 bars so that makes no sense. However, if you ARE getting a bad signal, that is a different issue altogether.
(btw I started a thread about this already several weeks back)
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You have a link to you'd thread?

Kjc99 said:
You have a link to you'd thread?
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http://forum.xda-developers.com/galaxy-s6/help/lte-signal-indicator-issues-t3083001

Japultra said:
http://forum.xda-developers.com/galaxy-s6/help/lte-signal-indicator-issues-t3083001
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Ok.. Thanks... I already read through that thread too... Been trying to figure out if it was just me or alot of people..... Seems like the 920f is getting more updates that us.... 920I......The latest is AOD3 right? Today I'm gonna flash a custom rom for 920f and see if there is any change....
*edit* just checked Samsung live update... AOE3 was just released for 920I for TTT I guess is a country called Trinidad and Tobago... But that is the firmware I've been using.... Hopefully this will help... Let Ya guys know
*edit #2*...ok guys just updated to AOE3.... Bars still show low but the signal status is working and it's showing that I have a better signal than with *#0011*... The - dbm and asu is now extremely close to my S5... So in conclusion the signal is strong it just doesn't show it in the bars like previous Galaxy's