Database Info

Poor reception on S3 somewhat fixed

So let me start off by saying I have pretty bad reception at home with 4g.
I had an iphone 4 with a 3g range extender before I got the S3 and it worked great.
Found a free app called phone info
Went in under device information, selected cdma auto (PRL). I restarted my phone.
I now have 5 bars and perfect clarity.

*** I must have been on another planet with this post...

gingi999 said:
Went in under device information, selected cdma auto (PRL). I restarted my phone.
I now have 5 bars and perfect clarity.
Click to expand...
Click to collapse
You get 4g in CDMA auto (PRL) mode?

gingi999 said:
So let me start off by saying I have pretty bad reception at home with 4g.
I had an iphone 4 with a 3g range extender before I got the S3 and it worked great.
Found a free app called phone info
Went in under device information, selected cdma auto (PRL). I restarted my phone.
I now have 5 bars and perfect clarity.
Click to expand...
Click to collapse
I am usually about 2 bars where I am. Making this switch didn't change my number of bars or dbm. I'm glad it worked for you however.
I expect by making this change, you are basically downgrading to 3G until you set it back.

If you have a network extender for 3G then that's the fix. Not turning on thst option.

mtnmeow said:
You get 4g in CDMA auto (PRL) mode?
Click to expand...
Click to collapse
It switches to 3G

michael* said:
I am usually about 2 bars where I am. Making this switch didn't change my number of bars or dbm. I'm glad it worked for you however.
I expect by making this change, you are basically downgrading to 3G until you set it back.
Click to expand...
Click to collapse
I am downgrading to 3G and my range extender only works for 3G not 4g. Verizon claims to not have a 4g extender yet.

Elite49 said:
If you have a network extender for 3G then that's the fix. Not turning on thst option.
Click to expand...
Click to collapse
Not exactly. The phone will stay in 4g with one bar even if 5 bars of 3G is available. So forcing the phone to switch to 3G is the only way I got the call quality I needed to make calls in my house

What's the make and model of this range extender?
Sent from my SCH-I535 using Tapatalk 2

Unstable 3G performance
So I've had my S3 for a little over a month and have noticed the poor call reception that people have mentioned,especially in my office building. My old droid 2 global never had a problem, but when I receive calls on the S3 i have to walk to A window down the hall to keep the call from dropping. In an attempt to stay on the more stable 3G coverage in the area I installed phone tools and forced 3G. The problem I have now is that when I'm out of the office or house and not on wifi, I pull the phone put of my pocket to check something and there is no data connection at all now. Even if I open my browser and try to force a connection I get nothing. If I set the radio back to include LTE I have a reliable data connection everywhere but my calls are still poor.
Am i missing something when setting the phone to be 3G only? Thanks.

Ok i tried that phone info program and set it tup cdma auto or whatever, and no improvement. How do i get back to stock? I tried setting to lte/cdma/evdo but it does not stick. I tried uninstalling the program and the phone would stick to 3g. Help!

hypertek said:
Ok i tried that phone info program and set it tup cdma auto or whatever, and no improvement. How do i get back to stock? I tried setting to lte/cdma/evdo but it does not stick. I tried uninstalling the program and the phone would stick to 3g. Help!
Click to expand...
Click to collapse
Just download the phone info app and switch it back to lte/CDMA/evdo when you switch it turn off the radio at the bottom and wait for a couple secs then turn it back on
Sent from my SCH-I535 using xda app-developers app

I wish Verizon and Samsung would just get together and try and resolve why their phones don't work well on Verizon's network. I figured they'd learn what they did wrong with the Nexus - pretty upset they never resolved it with the S3. I'm hoping the DNA/DLX from HTC doesn't have this issue. I liked the Samsung S3 in just about every way but the reception is wretched compared to Motorola phones.

yea I agree...the reception is awful. Literally can't use the phone for business. Everything else about it is awesome though

gingi999 said:
Not exactly. The phone will stay in 4g with one bar even if 5 bars of 3G is available. So forcing the phone to switch to 3G is the only way I got the call quality I needed to make calls in my house
Click to expand...
Click to collapse
I'm missing something. How does 3g/4g have anything to do with your calls? The phone works with data turned off. Are you using Skype?

sincerity said:
yea I agree...the reception is awful. Literally can't use the phone for business. Everything else about it is awesome though
Click to expand...
Click to collapse
I've pretty much given up on Samsung and Verizon as much as I love the phone as a PDA, as a phone it sucks.

sincerity said:
yea I agree...the reception is awful. Literally can't use the phone for business. Everything else about it is awesome though
Click to expand...
Click to collapse
It has to do more with your location I think..I work in the tri-county are of Detroit and my reception is excellent. Had a Cappy on ATT before my GS3 on Verizon and could not even get a signal in our office building..now on Verizon I'm at least 4 bars and full strength pretty much everywhere else..

Tyggy said:
It has to do more with your location I think..I work in the tri-county are of Detroit and my reception is excellent. Had a Cappy on ATT before my GS3 on Verizon and could not even get a signal in our office building..now on Verizon I'm at least 4 bars and full strength pretty much everywhere else..
Click to expand...
Click to collapse
It seems to have to do with the technology of the Verizon towers in your area. In LA with a motorola phone I lock on no problem and get great reception. With the S3 you'll switch from 4 bars - drop the call and switch back to 4 bars even when stationary. Motorolas don't have that issue with Verizon's network. I know several people with the S3 including people in CT and TX - all having the same issue on Verizon's network.

mysterysauce said:
Just download the phone info app and switch it back to lte/CDMA/evdo when you switch it turn off the radio at the bottom and wait for a couple secs then turn it back on
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
ok thanks, i tried this, and still seems to be stuck.

boe said:
I wish Verizon and Samsung would just get together and try and resolve why their phones don't work well on Verizon's network. I figured they'd learn what they did wrong with the Nexus - pretty upset they never resolved it with the S3. I'm hoping the DNA/DLX from HTC doesn't have this issue. I liked the Samsung S3 in just about every way but the reception is wretched compared to Motorola phones.
Click to expand...
Click to collapse
+1000 on Verizon and Sammy needing to fix this
Sent from my SCH-I535 using Xparent Red Tapatalk 2

Disable LTE without custom ROM?

I have the ATT HOX and want to disable LTE due to the known issues with missed calls etc. Would it be possible to disable it through root access WITHOUT installing a custom ROM?

I'm not sure what AT&T do to their phones but can you not change it via Settings > Mobile Network > Network mode.
Sent from my HTC One XL using xda premium

thejosh86 said:
I'm not sure what AT&T do to their phones but can you not change it via Settings > Mobile Network > Network mode.
Sent from my HTC One XL using xda premium
Click to expand...
Click to collapse
That's how it's done on my Rogers device.. should be the same on all.

this_is_nick6 said:
That's how it's done on my Rogers device.. should be the same on all.
Click to expand...
Click to collapse
Same on Telstra
Phone: HTC One XL
ROM: AOKP 4.2.1 MR1 preview w/ alloy blue theme
Launcher: Apex w/glaskart icons

Att one x doesn't have that function. Try to do it in service menu trying typing in *#*#4636#*#*
Go to phone info and scroll down. It works for me on clean Rom but not sure about stock rom

a670 said:
I have the ATT HOX and want to disable LTE due to the known issues with missed calls etc. Would it be possible to disable it through root access WITHOUT installing a custom ROM?
Click to expand...
Click to collapse
What known missed calls issue? What would LTE have to do with missed calls? LTE on AT&T is data only. It doesn't do anything with calls. You can dial *#*#4636#*#* and try to set it to gsm only or something.
Sent from my One X using Tapatalk 2

Believe me I have tried. It's not possible. But ik you said you didn't want to, but you really should look into custom ROMs. There's some that are basically stock with just better battery

Except for ATT. Its a well documented fact that they have it disabled. Any changes you make revert back to default.
this_is_nick6 said:
That's how it's done on my Rogers device.. should be the same on all.
Click to expand...
Click to collapse

Its a fairly well known issue with ATT and LTE phones.
As far as I can tell since LTE IS data only it has a hard time receiving calls when its connected to the LTE network. I think it has something to do with only having 1 antenna and it cant communicate on voice and data at the same time. Or, maybe not.:silly: All I know is that when my phone is connected to LTE I will not receive phone calls. All calls will ring a few times and then go to voice mail. I eventually get voice message notifications when the phone switches out of LTE.
Any changes made in the field test mode do not stick. Thank you very much ATT.
pside15 said:
What known missed calls issue? What would LTE have to do with missed calls? LTE on AT&T is data only. It doesn't do anything with calls. You can dial *#*#4636#*#* and try to set it to gsm only or something.
Sent from my One X using Tapatalk 2
Click to expand...
Click to collapse

a670 said:
Its a fairly well known issue with ATT and LTE phones.
As far as I can tell since LTE IS data only it has a hard time receiving calls when its connected to the LTE network. I think it has something to do with only having 1 antenna and it cant communicate on voice and data at the same time. Or, maybe not.:silly: All I know is that when my phone is connected to LTE I will not receive phone calls. All calls will ring a few times and then go to voice mail. I eventually get voice message notifications when the phone switches out of LTE.
Any changes made in the field test mode do not stick.
Click to expand...
Click to collapse
I've had 3 different LTE phones on AT&T and never had issues with missed calls and I'm constantly on a LTE connection. My phone kicks to hspa+ right before I receive a call and then it rings. Goes back to LTE about 30 seconds after I hang up. The only thing I can think of is that you are on LTE only in the field test mode thing. That will definitely give you call problems. What does it say that you are connected to when you go into the phone information menu?
Sent from my One X using Tapatalk 2

pside15 said:
I've had 3 different LTE phones on AT&T and never had issues with missed calls and I'm constantly on a LTE connection. My phone kicks to hspa+ right before I receive a call and then it rings. Goes back to LTE about 30 seconds after I hang up. The only thing I can think of is that you are on LTE only in the field test mode thing. That will definitely give you call problems. What does it say that you are connected to when you go into the phone information menu?
Sent from my One X using Tapatalk 2
Click to expand...
Click to collapse
I've had a few LTE phones too but I can confirm that this is an issue with AT&T and the HOX. (At least in certain areas.) The phone is *supposed* to do what you said and switch off LTE when a call comes in but that doesn't always happen. I've noticed it the most at my office where I usually have 4 bars of "4G LTE" or one or two bars of "4G". I'll have a long period of time with no incoming calls or texts and then when I make a call (and the phone switches to "4G") I get the backlog of voicemails and text messages. Hard resets haven't helped and AT&T refuses to admit that it's a problem.

Heres a summary of what I have found:
1 Being in field test mode does not affect incoming calls.
2. When making outgoing phone calls with LTE or HSPA displayed in field test mode, the connection will switch to UMTS and then revert back to LTE or HSPA after hanging up. I dont know what that means, just throwing it out there.
3. On a few occasions during my testing I have noticed that I could not receive calls when HSPA is displayed in field test mode. I think that the phone had just switched from LTE, although I havent been able to 100% verify that.
4. My connection at my house varies between LTE, HSPA,EDGE.
5. EDGE is great. My phone makes and receives calls all day long when I have a EDGE connection.
6. Most of my testing has been at home where I have crappy reception to begin with. On a few occasions when I had my wife with me I had her call my phone(connected to LTE). Same as when at home, my pone never rings.
pside15;36112809]I've had 3 different LTE phones on AT&T and never had issues with missed calls and I'm constantly on a LTE connection. My phone kicks to hspa+ right before I receive a call and then it rings. Goes back to LTE about 30 seconds after I hang up. The only thing I can think of is that you are on LTE only in the field test mode thing. That will definitely give you call problems. What does it say that you are connected to when you go into the phone information menu?
Sent from my One X using Tapatalk 2[/QUOTE]

ITNV said:
I've had a few LTE phones too but I can confirm that this is an issue with AT&T and the HOX. (At least in certain areas.) The phone is *supposed* to do what you said and switch off LTE when a call comes in but that doesn't always happen......".
Click to expand...
Click to collapse
Exactly!

I have Samsung Galaxy S3 on AT&T and I have same issue when connected to LTE. I have been working with AT&T CSR for over a week and no resolution yet. I have talked them into switching my data plan from 300MB LTE to Unlimited Standard Phone data plan. (Unlimited standard phone data plan uses HSPA+ and not LTE, which would resolve the issue)
From what I have understood so far, its not the phone, its the AT&T LTE network.

Wouldnt people with the same phone have more answers for you?
Sent from my HTC One XL

Who are you talking to
954wrecker said:
Wouldnt people with the same phone have more answers for you?
Sent from my HTC One XL
Click to expand...
Click to collapse

AlwaysNoob said:
I have Samsung Galaxy S3 on AT&T and I have same issue when connected to LTE. I have been working with AT&T CSR for over a week and no resolution yet. I have talked them into switching my data plan from 300MB LTE to Unlimited Standard Phone data plan. (Unlimited standard phone data plan uses HSPA+ and not LTE, which would resolve the issue)
From what I have understood so far, its not the phone, its the AT&T LTE network.
Click to expand...
Click to collapse
I didnt even know that kind of plan existed. Have you switched over yet? Does it work?:fingers-crossed:

a670 said:
I have the ATT HOX and want to disable LTE due to the known issues with missed calls etc. Would it be possible to disable it through root access WITHOUT installing a custom ROM?
Click to expand...
Click to collapse
Have you tried this? http://forum.xda-developers.com/showpost.php?p=27732183&postcount=8

954wrecker said:
Wouldnt people with the same phone have more answers for you?
Sent from my HTC One XL
Click to expand...
Click to collapse
No, because this issue is not related to the phone but its related to AT&T LTE network. So everyone on AT&T LTE network has same issue and not only people with HTC one X.
---------- Post added at 03:20 PM ---------- Previous post was at 03:17 PM ----------
a670 said:
I didnt even know that kind of plan existed. Have you switched over yet? Does it work?:fingers-crossed:
Click to expand...
Click to collapse
I was on phone with them last night. They have created a case number for me so their "technical team" can look into it. They promised me to get back to me before friday on this.
For changing the data plan, the CSR tried to change it but it didnt work yesterday. I blame it on the CSR because I know some people on XDA has done that before. I am gonna call them again and have a different CSR try it or me.
And plus, with this change, you get unlimited HSPA+ for just $10.

cr1960 said:
Have you tried this? http://forum.xda-developers.com/showpost.php?p=27732183&postcount=8
Click to expand...
Click to collapse
Thanks for the link. Those settings actually worked for me. I had already tried a couple different APN configs but none of them seemed to stick.
So, now I have successfully disabled LTE.
Unfortunately, I'm still having intermittent missed calls with the phone connected to HSPA. Also, At work in certain areas, we have rock solid LTE reception and guess what...no missed calls. WTFrack?
At home the only time I can get regular calls is when the phone is connected to EDGE.
I seriously think that there must some relationship between 4G/LTE and signal strength. Does anyone know If EDGE and 4G/LTE use the same towers or same power outputs?

[Q] Nexus 5 only connects to LTE on T-Mobile

I did some searching around and found a couple of pages with ideas but they have not worked so far. Here's the deal, my son's said his Nexus 5 was getting pretty bad reception so I took a look at it. After some toggling of the network settings I discovered that it will only connect to LTE, not to HSPA(+) or Edge. Where we are, we have somewhat weak LTE (2 of the three towers have been "modernized" with LTE and band 2 HSPA+, one has not and it's slightly closer to us). We have a Cell-Fi repeater so we get strong HSPA+ signal in our house. His sim works fine in a Nexus 4 with the hybrid radio getting Edge, HSPA+ and LTE. My nano sim with adapter that works fine in the Nexus 4 exhibits the same problems in the Nexus 5. I tried formatting the cache from the stock recovery menu and am now looking to do a factory reset since I never did oem unlock this phone so I can't just flash a radio to test.
My gut tells me it's hardware so I have my son rebuilding his phone environment on the Nexus 4 so that we can do a factory reset to see if that helps and I'll unlock it at that point. If it doesn't fix it, I've already started the conversation with the play store. My question is, anyone else seen anything like this? Anything else I should try out?
peterb

pboggini said:
I did some searching around and found a couple of pages with ideas but they have not worked so far. Here's the deal, my son's said his Nexus 5 was getting pretty bad reception so I took a look at it. After some toggling of the network settings I discovered that it will only connect to LTE, not to HSPA(+) or Edge. Where we are, we have somewhat weak LTE (2 of the three towers have been "modernized" with LTE and band 2 HSPA+, one has not and it's slightly closer to us). We have a Cell-Fi repeater so we get strong HSPA+ signal in our house. His sim works fine in a Nexus 4 with the hybrid radio getting Edge, HSPA+ and LTE. My nano sim with adapter that works fine in the Nexus 4 exhibits the same problems in the Nexus 5. I tried formatting the cache from the stock recovery menu and am now looking to do a factory reset since I never did oem unlock this phone so I can't just flash a radio to test.
My gut tells me it's hardware so I have my son rebuilding his phone environment on the Nexus 4 so that we can do a factory reset to see if that helps and I'll unlock it at that point. If it doesn't fix it, I've already started the conversation with the play store. My question is, anyone else seen anything like this? Anything else I should try out?
peterb
Click to expand...
Click to collapse
if lte is in your area, and not a perfect signal, itll still choose to connect to lte by default. if you lose your lte connection, then itll connect to H or 3G, and so on. if you do not want it to connect to lte, go to the phones main settings, mobile networks, then change the preferred network type from lte to 3G. or you can dial *#*#4636#*#*, chose phone info, then change the network type to wcdma preferred.

simms22 said:
if lte is in your area, and not a perfect signal, itll still choose to connect to lte by default. if you lose your lte connection, then itll connect to H or 3G, and so on. if you do not want it to connect to lte, go to the phones main settings, mobile networks, then change the preferred network type from lte to 3G. or you can dial *#*#4636#*#*, chose phone info, then change the network type to wcdma preferred.
Click to expand...
Click to collapse
Thanks for the reply, I understand all that. I don't know if I asked clearly enough or not but the problem we are seeing here is that this particular phone can only connect to LTE which is weak inside my house. So, when it tries to switch over, it just won't connect. I also tried to make a call which will switch to HSPA+ and that too fails. Going to the info menu and selecting WCDMA preferred nets me a phone that won't connect, selecting GSM results in the same. LTE only or GSM/LTE works only if it picks up an LTE signal. Ditto for selecting 2G, 3G or LTE preferred in the Mobile Networks menu. I've also reset the APN's, confirmed that the settings match my MotoX, etc and still no joy.
Just looking for ideas that someone might have that I can try before blowing away all my son's data on a factory reset or, if that fails, hardware replacement.
peterb

pboggini said:
Thanks for the reply, I understand all that. I don't know if I asked clearly enough or not but the problem we are seeing here is that this particular phone can only connect to LTE which is weak inside my house. So, when it tries to switch over, it just won't connect. I also tried to make a call which will switch to HSPA+ and that too fails. Going to the info menu and selecting WCDMA preferred nets me a phone that won't connect, selecting GSM results in the same. LTE only or GSM/LTE works only if it picks up an LTE signal. Ditto for selecting 2G, 3G or LTE preferred in the Mobile Networks menu. I've also reset the APN's, confirmed that the settings match my MotoX, etc and still no joy.
Just looking for ideas that someone might have that I can try before blowing away all my son's data on a factory reset or, if that fails, hardware replacement.
peterb
Click to expand...
Click to collapse
ok, i understand now. i didnt know that it wasnt connecting to h or 3G when it should. to me it sounds like a device ready to get an rma. i mean there is a hardware mod that could possibly fix it, but its not worth the trouble. if you can get an rma, get an rma.

simms22 said:
ok, i understand now. i didnt know that it wasnt connecting to h or 3G when it should. to me it sounds like a device ready to get an rma. i mean there is a hardware mod that could possibly fix it, but its not worth the trouble. if you can get an rma, get an rma.
Click to expand...
Click to collapse
Yea, according to the nice person I spoke to at the play store, I should indeed qualify for an RMA and I should find out in the next day or so. I purchased the phone new in box from someone and they were able to find the phone and they are now attributing the phone to me.
I am curious about the hardware mod though. Is this just for Edge/HSPA or is it for signal in general? If it's signal in general then I'm not sure I'd want to try it since this phone used to work just fine.
peterb

pboggini said:
Yea, according to the nice person I spoke to at the play store, I should indeed qualify for an RMA and I should find out in the next day or so. I purchased the phone new in box from someone and they were able to find the phone and they are now attributing the phone to me.
I am curious about the hardware mod though. Is this just for Edge/HSPA or is it for signal in general? If it's signal in general then I'm not sure I'd want to try it since this phone used to work just fine.
peterb
Click to expand...
Click to collapse
its just for a better signal in general.

simms22 said:
its just for a better signal in general.
Click to expand...
Click to collapse
Ah, assuming it's this then:
http://forum.xda-developers.com/google-nexus-5/general/hardware-mod-increse-signal-strength-t2842599
peterb

pboggini said:
Ah, assuming it's this then:
http://forum.xda-developers.com/google-nexus-5/general/hardware-mod-increse-signal-strength-t2842599
peterb
Click to expand...
Click to collapse
yup, thats it
but i would chose the rma route, as the nexus 5 shouldnt be behaving that way.

simms22 said:
yup, thats it
but i would chose the rma route, as the nexus 5 shouldnt be behaving that way.
Click to expand...
Click to collapse
Yes, agreed. OK, just asking around as much as possible. I'm betting he will be getting a new phone.
peterb

BAFFLED: no LTE, tried everything

(well, everything short of new SIM card)
The situation:
-bought a 32GB N5 from a guy
-I'm on Rogers in Canada
-on Lollipop
-cannot get LTE, only 3G and 4G (H)
-APN is correct
-checked everything in *#*#4636#*#*
-cleared cache
-reflashed facotry image
-tried Cataclysm
SOMETIMES, I'll get "LTE", but it's a phantom - there actually isn't a connection at all.
I've swapped phones many times before; never had an issue. I read in threads someone saying that on AT&T that you need to register IMEI with them to get new device working with LTE. I never had to before, but called Rogers to check if this is something they've started doing.....no.
Under device model, it doesn't say either 820 or 821. It says "Nexus 5"
I started thinking that I stupidly bought the international model off the guy, but then when i was in fastboot mode I saw that it did say 820.
So.............I'm stumped, puzzled and pissed.
Does anyone, ANYONE have suggestions or ideas? Many thanks!

Sanity check but worth investigating:
- Definitely have LTE coverage in your area? I assume other phones around you connect to same LTE network no problem
- Does the SIM connect to LTE in another known working phone?

eddiehk6 said:
Sanity check but worth investigating:
- Definitely have LTE coverage in your area? I assume other phones around you connect to same LTE network no problem
- Does the SIM connect to LTE in another known working phone?
Click to expand...
Click to collapse
Yep, coming from my old phone. Have always had coverage in all the areas I've been with this new phone. LTE SIM, LTE area...it SHOULD work, but is not.

Try a new sim at the store, if it doesn't work return it on the spot. No harm, worth a try

Does 3g work? What bands does your carrier run in your area? You might try the diag LTE screen (requires root, there's an app from the Play Store) and see what band it sees. Also have you tried doing a scan of which carriers are available?

MrObvious said:
Does 3g work? What bands does your carrier run in your area? You might try the diag LTE screen (requires root, there's an app from the Play Store) and see what band it sees. Also have you tried doing a scan of which carriers are available?
Click to expand...
Click to collapse
3G and 4G work.
I went to Rogers store and got a new SIM. No change.

Same thing...
I'm just posting to let you know I've had EXACTLY the same problem..
Mine occurred after I smashed the screen and sent it away to a company to be repaired. My N5 came back with a new screen, so immediately I upgraded to lollipop...
Then the LTE stopped working. Occasionally the device would say it was connected to 4G but, like you, it didn't work when it showed this. I tried everything, flashing, checking access points, flashing different radios...but nothing worked.
Now I can't work out if the repair company had somehow damaged the 4G antenna when they were fixing the screen. So I sent it back to be repaired (again)
Now i've got it back. 4G works but it has lost a lot of speed. Where I was getting 25mb/sec on average, I now get 10 max.
I've e-mailed the repair centre to find out what they did, but honestly, I've given up a bit now...

Wait, you upgraded to Lollipop? You realize that they included a new radio right? Try reverting modems.
Sent from my Nexus 5 using XDA Free mobile app

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.
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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.
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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
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Already have, twice.

rockywall said:
Already have, twice.
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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?
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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.
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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.
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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.
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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.
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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.
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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.
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On my phone it starts doing it again after doing the dialer code only once I restart the phone. Is this your problem?
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