Database Info

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?
Click to expand...
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.

Shield LTE on T-Mobile issue.

Just got my Shield LTE today. This is my first tablet ever as well as my first unlocked device ever so I've never really had to mess with APN settings before. Long story short, I can connect and get HSPA+ ok but the speeds suck and no LTE at all. My Galaxy S5 can pick up LTE fine and get around 50Mbps down, but the Shield gets only about 5 down on HSPA+. When I search for network operators, my only choices are T-Mobile (2G/3G) and AT&T (2G/3G/4G). Any ideas as to why it can't find T-Mobile LTE network?

Does your phone work with LTE in the same spot? I got my tablet yesterday and moved the TMO SIM from by iPad to the Shield. Got LTE right away without doing anything with APNs. Depending on where you are, TMO LTE coverage is spotty.

Yes. My Galaxy S5 gets about 3 bars on LTE while sitting right next to my tablet that only has 2 bars on 3G. Just got off the phone with T-Mobile and they said they could see me connect to the LTE network and I did see LTE come up on the Shield for a moment but then it almost immediately dropped back HSPA+. I think its an issue with the tablet itself. I'm on hold with Nvidia now.

I'm still trying to get my Shield LTE activated on T-Mobile for the 200 MB free data for life deal. T-Mobile told me that their system saw the Shield's IMEI as a phone, not a tablet, and to bring it into a store so they can see that it is indeed a tablet.

The APN Settings came down by default for me and appeared correct with what I've searched online, but I'm having the same issue where I'm not getting LTE here in the PHX market, in all the places my phone gets full healthy LTE.
I don't want to complain about my H+ signal, but it's just not cutting the mustard if you will.
You find/hear anything useful here Hoju?

I'm seeing the same issue With LTE/Tmobile alsnly HSPA+

I've been in contact with Nvidia support since last week and they have had me send them numorous diagnostic files and bug reports. From what I can tell, the Shield is using NVIDIA
's Icera i500 modem which can be thoroughly tweaked through software updates. I'm hoping this issue can be resolved with such an update. Nvidia level 2 support told me that I was the first case of this reported, so I urge everyone suffering from this issue to contact support so they can see that the problem is not an isolated incident. I'm hoping to hear back from them today regarding this. I will update the thread when I do.

T-Mobile setup my imei number as an iPad to activate sim and didn't give me the pin, called T-Mobile and got it fixed, the pin turned out to be 1234, once he fixed the imei and changed pin, internet started working well and LTE is working as well. Also logged into T-Mobile.com/connectme I'm not sure if that's required but that's where you can buy more data. Hope that helps someone

Hi there, T-Mobile retail dealer here. I've tried 4 different T-Mobile sim cards (2 $50 simple choice plans, 2 $70 simple choice plans) along with 4 of their MVNO's sim cards (Univision Mobile, Straight Talk, Ultra Mobile, Lyca Mobile) and they all had LTE.
With all of the T-Mobile sim cards, the standard APN that's loaded in (fast.t-mobile.com) works perfectly for me.
For the MVNOs, using their respective APNs allowed for LTE, while using "fast.t-mobile.com" on those services only gave me HSPA+
I'm also located right outside of Philadelphia. Not really a populous area but we have good coverage with T-Mobile around here.
Hope this helped.

I also just added ro.ril.fast.dormancy.rule=0 to my build.prop, result so far is stable connection on h+. Without that it was flipping between 3g and h+ constantly and connection was unstable. ive been streaming music and it did change back to 3g, but not back and fourth like before, ill keep an eye on it.
maybe i spoke to soon, i still see it switching. Ill update after some more testing if this did anything or not for me.

genicles said:
I also just added ro.ril.fast.dormancy.rule=0 to my build.prop, result so far is stable connection on h+. Without that it was flipping between 3g and h+ constantly and connection was unstable. ive been streaming music and it did change back to 3g, but not back and fourth like before, ill keep an eye on it.
maybe i spoke to soon, i still see it switching. Ill update after some more testing if this did anything or not for me.
Click to expand...
Click to collapse
Just out of curiosity have you noticed a difference in the last three days overall?

livinonnoslp said:
Just out of curiosity have you noticed a difference in the last three days overall?
Click to expand...
Click to collapse
Not really, guess it was a placebo effect at first and just happened to stay on h+ for a while. from what i have read over the last few days is that on t-mobile's network it switches to 3g to save battery. I just removed the line i added, streaming music right now and just got a drop out. If someone knows or comes up with a way to force it on h+ I would happy, i could care less about battery savings if i just have this thing on my desk plugged in all day.
I got some time today, going to try staying off of wifi all day and see how it acts, might try a couple things if i can find some other options to test. if i find something ill let ya know.

genicles said:
Not really, guess it was a placebo effect at first and just happened to stay on h+ for a while. from what i have read over the last few days is that on t-mobile's network it switches to 3g to save battery. I just removed the line i added, streaming music right now and just got a drop out. If someone knows or comes up with a way to force it on h+ I would happy, i could care less about battery savings if i just have this thing on my desk plugged in all day.
I got some time today, going to try staying off of wifi all day and see how it acts, might try a couple things if i can find some other options to test. if i find something ill let ya know.
Click to expand...
Click to collapse
Thanks for the response. I ended up exchanging mine with a new one that I just received last night. Right now I'm still testing and hopeful it will shape up, mine would drop from H+ to Edge, I do get LTE from time to time but it's very sparse. So far the replacement is doing well but i'm more and more convinced this is a radio issue as the tablet was really certified on AT&T. I've filed a ticket on my old one with Nvidia, no eta on a fix. Anyone that's seeing this go through nvidia support and file a ticket. Hopefully they can get it fixed in the next OTA.

I, too, only get H+ signal from TMO on my Shield. While it's normally fast, it sometimes drops and goes to E(DGE) or none at all.
EDIT: TMO could find nothing on their end via online chat. I'm going to test the SIM in another LTE device, and see if its a SIM issue. Waiting to hear back from NVIDIA. Really hoping our coming-soon 5.0 update fixes this!
EDIT 2: I just heard back from them that the TMO issue is an open bug "and will be fixed in a future update".

shield vs lte?
Yours at least connects, mine wont even do that I probably go to local branch again tomorrow if things wont change by the morning. I hope it works, but i cant activate the sim. Shield recognizes the card, under connections it says T-mobile but every time i turn off WiFi and try to activate the sim via cellular data, it keep telling me theres no connection yet i have 2 bars of their signal

So this means that I could but the 30 dollar a month plan? 5GB data, 100 minutes and unlimited texts?

Did anyone that was having a problem with LTE ever get it resolved? I just picked up the LTE version of the Shield tablet and have yet to see LTE and my phone is getting it fine. I hope a solution was found.

caseyatbt said:
Did anyone that was having a problem with LTE ever get it resolved? I just picked up the LTE version of the Shield tablet and have yet to see LTE and my phone is getting it fine. I hope a solution was found.
Click to expand...
Click to collapse
Yep, I'd be interested as well. I got that tablet since a few months and have problems with the radio too. I'm running LingeageOS 14.1. The latest few builds didn't even find the sim card anymore. Today I got back to stock rom for testing. Sim card is there, but it loses the radio connection every few seconds.
---------- Post added at 08:59 PM ---------- Previous post was at 08:04 PM ----------
I just tried T-Mobile: works like a charm. It seems like Vodafone is causing the trouble. I've tried two different SIM cards and have the problem with both. Country: Germany.

caseyatbt said:
Did anyone that was having a problem with LTE ever get it resolved? I just picked up the LTE version of the Shield tablet and have yet to see LTE and my phone is getting it fine. I hope a solution was found.
Click to expand...
Click to collapse
What LTE band is your phone connecting to? I'm assuming you are T-Mobile? If you're in a band 12 area you might be out of luch as the North American version supports bands 2, 4, 5, 17, 7.

Can't connect to ATT LTE on Lollipop

I'm sitting in my office where I would normally get at least 2 bars of LTE, instead I'm only getting HSPA connection (4-5 bars). Same thing occurred at home, only HSPA when I normally would have LTE.
This started happening when I flashed the factory image when Lollipop got released 2 days ago.
Anyone else experiencing the same issue?
EDIT: Contacted Nexus support and they said that they're having issues with ATT on the east coast and there may be an issue with my sim. Going to contact ATT now.
EDIT2: Solved. ATT set my phone as a 3G device so it never picked up LTE. They fixed it, all good now.

enviii said:
I'm sitting in my office where I would normally get at least 2 bars of LTE, instead I'm only getting HSPA connection (4-5 bars). Same thing occurred at home, only HSPA when I normally would have LTE.
This started happening when I flashed the factory image when Lollipop got released 2 days ago.
Anyone else experiencing the same issue?
EDIT: Contacted Nexus support and they said that they're having issues with ATT on the east coast and there may be an issue with my sim. Going to contact ATT now.
EDIT2: Solved. ATT set my phone as a 3G device so it never picked up LTE. They fixed it, all good now.
Click to expand...
Click to collapse
How is that a fix? You now have no LTE!

Unable to establish a wireless data connection

I have two Sprint Galaxy S8s that I purchased from Sam's Club. I have the same issue with both of them. Please respond if you are having this issue, or not and if you have found a fix. Apparently it is an issue on multiple Samsung devices with Sprint.
I continuously get a pop-up error that states:
Unable to establish a wireless data connection
LTE: ESM - 38 EMM - x
In the notification panel it shows:
RilNotifier
Mobile data connection error
I have spent hours on the phone with Sprint and they have not been able to permanently fix it. The last person talked to told me to take it to a store and they could fix it. Well, we all know how that goes....
There is 1 temporary fix. If I put in the Dialer code: ##72786# and let it do its thing, it will have no issues until the next time the phone is restarted.
I have update the PRL and profile numerous times. I have installed the latest system updates, factory reset. Nothing permanently fixes it thus far.

mikeregister said:
I have two Sprint Galaxy S8s that I purchased from Sam's Club. I have the same issue with both of them. Please respond if you are having this issue, or not and if you have found a fix. Apparently it is an issue on multiple Samsung devices with Sprint.
I continuously get a pop-up error that states:
Unable to establish a wireless data connection
LTE: ESM - 38 EMM - x
In the notification panel it shows:
RilNotifier
Mobile data connection error
I have spent hours on the phone with Sprint and they have not been able to permanently fix it. The last person talked to told me to take it to a store and they could fix it. Well, we all know how that goes....
There is 1 temporary fix. If I put in the Dialer code: ##72786# and let it do its thing, it will have no issues until the next time the phone is restarted.
I have update the PRL and profile numerous times. I have installed the latest system updates, factory reset. Nothing permanently fixes it thus far.
Click to expand...
Click to collapse
I was having/have this issue as well, but seems to only happen when I have been on Wifi Calling and loose Wifi connection.

ait1071 said:
I was having/have this issue as well, but seems to only happen when I have been on Wifi Calling and loose Wifi connection.
Click to expand...
Click to collapse
It happens to me regardless of the Wi-Fi/Wi-Fi calling situation.
Sent from my SM-G950U using Tapatalk

I have this issue and it only happens when I have location toggled on.
I've redone profile etc, but as soon as location is turned on it re-appears.

this happens to me occasionally as well. Not sure what is causing it. I normally toggle the "Mobile Data" on and off to get rid of it. It is at random times and not that often but it is annoying for sure

I noticed this today also. I toggled airplane mode but it keeps coming back...

I also have an S8 from Sam's with this same issue, as well as 2 G6's that i purchased from Sprint's web site that constantly drop data connection. Tried all kinds of settings changes, including changing bands, carrier aggregation, reset network, sim pull, etc and currently have a ticket open with the "network team". I have an S6 on the account also that has been upgraded to Android 7. It has no issues at all. Also, the issues seem to only happen in LTE only areas, I have been to an LTE-Plus area twice and the phone maintained a constant connection. That makes me think this is related to HPUE. BTW, the G6 will stay connected for 10 seconds on lte, then lose all data connection for 15 seconds, then repeat. I have watched and timed this behavior with a stop watch for close to 30 minutes, while moving and standing still.

mikeregister said:
I have two Sprint Galaxy S8s that I purchased from Sam's Club. I have the same issue with both of them. Please respond if you are having this issue, or not and if you have found a fix. Apparently it is an issue on multiple Samsung devices with Sprint.
I continuously get a pop-up error that states:
Unable to establish a wireless data connection
LTE: ESM - 38 EMM - x
In the notification panel it shows:
RilNotifier
Mobile data connection error
I have spent hours on the phone with Sprint and they have not been able to permanently fix it. The last person talked to told me to take it to a store and they could fix it. Well, we all know how that goes....
There is 1 temporary fix. If I put in the Dialer code: ##72786# and let it do its thing, it will have no issues until the next time the phone is restarted.
I have update the PRL and profile numerous times. I have installed the latest system updates, factory reset. Nothing permanently fixes it thus far.
Click to expand...
Click to collapse
Are you in an LTE-Plus area?

rockywall said:
I also have an S8 from Sam's with this same issue, as well as 2 G6's that i purchased from Sprint's web site that constantly drop data connection. Tried all kinds of settings changes, including changing bands, carrier aggregation, reset network, sim pull, etc and currently have a ticket open with the "network team". I have an S6 on the account also that has been upgraded to Android 7. It has no issues at all. Also, the issues seem to only happen inLTE only areas, I have been to an LTE-Plus area twice and the phone maintained a constant connection. That makes me think this is related to HPUE. BTW, the G6 will stay connected for 10 seconds on lte, then lose all data connection for 15 seconds, then repeat. I have watched and timed this behavior with a stop watch for close to 30 minutes, while moving and standing still.
Click to expand...
Click to collapse
Dial ##scrtn# I'm on my second s8 plus both have same issue

The only way I've found that keeps the error from happening for me is to turn off location. Since then I haven't seen the error pop up.

njdan30 said:
Dial ##scrtn# I'm on my second s8 plus both have same issue
Click to expand...
Click to collapse
Already have, twice.

rockywall said:
Already have, twice.
Click to expand...
Click to collapse
Sucks it's just a temp fix I noticed after I use WiFi at home then goto service area I med to dial it every time on this over priced p.o.s. my s7 edge iPhone 6 plus and 5 other phones have zero issue just my s8 plus. They thought it was a defected antenna which I figured it wasn't, I tried dialing ##omadm# and changing to sprint development mode which phone wouldn't activate only in production mode would it work, also seems to only be the phone I got thru mail without a set msl this one is 000000 my other galaxies have sprint set msl

rockywall said:
Are you in an LTE-Plus area?
Click to expand...
Click to collapse
I am not sure how to tell if an area has LTE Plus, but I live in SW Virginia and went 3 hours away for a couple days to Richmond and had no issues. So, it's definitely the network in certain areas.
Sent from my SM-G950U using Tapatalk

mikeregister said:
I am not sure how to tell if an area has LTE Plus, but I live in SW Virginia and went 3 hours away for a couple days to Richmond and had no issues. So, it's definitely the network in certain areas.
Sent from my SM-G950U using Tapatalk
Click to expand...
Click to collapse
I am also in SW VA, and after speaking to a few stores, one mentioned that it has something to do with the nTelos merger. I have to use 3G from Roanoke to Danville on a daily basis. even though it is fairly solid LTE coverage.
If you look at Sprint's coverage map, LTE Plus is a darker color. Richmond and Norfolk/Hampton Roads area are Plus.

rockywall said:
I am also in SW VA, and after speaking to a few stores, one mentioned that it has something to do with the nTelos merger. I have to use 3G from Roanoke to Danville on a daily basis. even though it is fairly solid LTE coverage.
If you look at Sprint's coverage map, LTE Plus is a darker color. Richmond and Norfolk/Hampton Roads area are Plus.
Click to expand...
Click to collapse
I have assumed it was something to do with nTelos. I live in Roanoke and work in Christiansburg. The issue is in both places. Follow my instructions in my OP with the dialer code and your LTE will work fine, just have to do it anytime you restart your phone. No need to suffer on 3G.
Sent from my SM-G950U using Tapatalk

I doubt it has anything to do with nTelos. I live in Michigan and I get the same issue with my s8 plus and whatever nTelos is, we don't have it.

TheFugg said:
I doubt it has anything to do with nTelos. I live in Michigan and I get the same issue with my s8 plus and whatever nTelos is, we don't have it.
Click to expand...
Click to collapse
nTelos was a regional carrier in VA, WV, NC, OH, MD. They were purchased by another local company, Shentel, that operates under Sprint. They are not an MVNO though, they sell Sprint branded phones and service. And all the stores changed to Sprint branding. It could be a different regional carrier from your area, This merger happened a over a year ago and that is when we started getting LTE service. I think the merged network is not capable of dealing with HPUE. That is the common denominator with the G6 and S8.

Galaxy S8 plus and S8 same error
So if I understand all these comments correctly, there is still no resolution to this? I live in Huntington Wv and yes we did have nTelos. I have 2 S8+ and 1 S8 all get this error. I have a ticket in for the network team but I'm not holding my breath.

I am also having this issue. I've done ##72786# that seemed to fix it, but it's back. I change to CDME/LTE from automatic, and it still happens. I was about to do a factory reset. It's my only complaint with this device, otherwise I love it. I am in southwest PA. It seems to happen during cell tower hand offs like if I'm out driving. I just toggled data and the error went away.
Edit: I'm on the S8 Plus but I don't think that makes a difference.

Outatime67 said:
I am also having this issue. I've done ##72786# that seemed to fix it, but it's back. I change to CDME/LTE from automatic, and it still happens. I was about to do a factory reset. It's my only complaint with this device, otherwise I love it. I am in southwest PA. It seems to happen during cell tower hand offs like if I'm out driving. I just toggled data and the error went away.
Click to expand...
Click to collapse
On my phone it starts doing it again after doing the dialer code only once I restart the phone. Is this your problem?
Sent from my SM-G950U using Tapatalk

Verizon S10e no longer works on Verizon after outage? Works on Mint sim (Tmobile) no problem.

Hi,
Suddenly on Tuesday when Verizon had the outage in NY my phone started not being able to make calls, data didn't work and visual voicemail stopped working completely but texts worked intermittently. I spent hours resetting my phone network, clearing cache and got no where. Intermittently I could make calls over wifi. I noticed my signal kept going from signal to no signal at all? After several more days of verizon support and engineers visual voicemail started working for new voicemails bit old ones were grayed out. Then today after switching to a new 5g simcard and 4.5 more hours they gave up and said my phone is under warranty and they are sending a new one (assumed refurbished). The odd thing is texts still work over wifi but no data or calls? I also have a Verizon network extender.
Any idea what in the world is going on? Is it Verizon that caused this or my radio in the phone?
Would it be better to send my phone to Samsung for repair or keep the assumed refurbished one from Verizon as my original warranty didn't end until November 2023?
I tried looking around for others with this issue. Is it causation or coincidence this happened during an outage?

Maybe this has something to do with it?
verison layoffs - Google Search

S10eandtears said:
Suddenly on Tuesday when Verizon had the outage in NY my phone started not being able to make calls, data didn't work and visual voicemail stopped working completely but 192.168.100.1 192.168.1.1 texts worked intermittently. I spent hours resetting my phone network, clearing cache and got no where. Intermittently I could make calls over wifi. I noticed my signal kept going from signal to no signal at all? After several more days of verizon support and engineers visual voicemail started working for new voicemails bit old ones were grayed out. Then today after switching to a new 5g simcard and 4.5 more hours they gave up and said my phone is under warranty and they are sending a new one (assumed refurbished). The odd thing is texts still work over wifi but no data or calls? I also have a Verizon network extender.
Any idea what in the world is going on? Is it Verizon that caused this or my radio in the phone?
Would it be better to send my phone to Samsung for repair or keep the assumed refurbished one from Verizon as my original warranty didn't end until November 2023?
I tried looking around for others with this issue. Is it causation or coincidence this happened during an outage?
Click to expand...
Click to collapse
Since you mentioned that your phone's signal was intermittently going from signal to no signal at all, it suggests that there may have been disruptions in the network coverage or connectivity in your area during the outage. This could explain why you were unable to make calls or use data on your phone.

SAMI_AI202 said:
Since you mentioned that your phone's signal was intermittently going from signal to no signal at all, it suggests that there may have been disruptions in the network coverage or connectivity in your area during the outage. This could explain why you were unable to make calls or use data on your phone.
Click to expand...
Click to collapse
You k ow
MrGoodtunes said:
Maybe this has something to do with it?
verison layoffs - Google Search
Click to expand...
Click to collapse
You know I was told an engineer would follow up with me a second time and they never did which is why I escalated things. In total I spent over 16 hours. Seeing the layoffs, I wondered if someone there was like OK want to fire me let me ruin your system on the way out.

SAMI_AI202 said:
Since you mentioned that your phone's signal was intermittently going from signal to no signal at all, it suggests that there may have been disruptions in the network coverage or connectivity in your area during the outage. This could explain why you were unable to make calls or use data on your phone.
Click to expand...
Click to collapse
I thought the same thing at first but then the other lines I have all iphones had no issue after Tuesday somehow. It seems to be something on their end though as how could some voicemails be locked and other not?