[Q] APN won't save, tried two different SIMs, any ideas? - Samsung Galaxy Nexus

Okay, so today I was at work, receiving calls, making calls, sending texts, phone was working fine. I'm on AT&T, using their SIM in the Galaxy Nexus. Suddenly, I have no service. Nothing. So, after several reboots, I finally check the APN. There's nothing there. I attempt to add one, and it promptly disappears.
I went online and found others had a similar experience when they attempted to change their MCC and MNC, but I never had. Just running stock JB with the settings the OS automatically found for my SIM, which has worked for nearly a week.
Thinking my SIM might be to blame, I pulled out my Straight Talk (at&t compatible) SIM that I have on my backup Samsung Captivate. Not only does the Galaxy Nexus not find an APN, any attempt to add an APN fails. I can add one, it'll "save" but it doesn't show up in the list.
Both SIMs work fine in the Captivate.
So I just installed MIUI, in case it was some issue in stock. Same results for both. It seems it's ROM-independent and SIM-independent. Can't make an APN stick.
Any thoughts? Is my phone a lemon? I can't imagine what else to do, since a new ROM and a new SIM doesn't fix it.

Okay, further update:
I dialed the *#*#4636#*#* number to check the phone info, and the IMEI is listed as Unknown.
I'm assuming this is bad? :|

Nevermind, finally found some threads on it. Looks like I'm SOL. /sigh

I have exactly the same problem, anyone has an answer to this problem...
what tread did you found...did you fix your problem?

Related

Proud New owner. Need help with data/APN

Hello everyone!
i just got my HTC One X last night.
This morning i got a new sim from T-Mobile and popped it in.
Everything was well except for the data. When I go to access point name menu it says sim card not detected but i can make calls and text.
I don't know what's wrong. I'm am running NRGZ rom if that helps. Yet to try it with the stock rom. I'm running it on the T-Mobile US network.
I tried rebooting and re flashing, but it still isn't detecting the sim card in the access point names menu.
I have no idea what to do.
Whenever i enter the T-Mobile APN settings, it does not save. it says APN Saved, but it does not show up in the list.
Thanks in advance for any help
So i was browsing through the Q and A here
and i found this link
http://forum.xda-developers.com/showthread.php?t=1699347
does this apply to me?
Exact same issue here!
AndG404 said:
Hello everyone!
i just got my HTC One X last night.
This morning i got a new sim from T-Mobile and popped it in.
Everything was well except for the data. When I go to access point name menu it says sim card not detected but i can make calls and text.
I don't know what's wrong. I'm am running NRGZ rom if that helps. Yet to try it with the stock rom. I'm running it on the T-Mobile US network.
I tried rebooting and re flashing, but it still isn't detecting the sim card in the access point names menu.
I have no idea what to do.
Whenever i enter the T-Mobile APN settings, it does not save. it says APN Saved, but it does not show up in the list.
Thanks in advance for any help
Click to expand...
Click to collapse
I have been experiencing the exact same issue.
Yesterday I went to T-Mobile store and picked up a micro-SIM. Tried programming the APN by hand but had the same results as you described.
When I interacted with T-Mobile support last night, they tried to send in a message that supposedly would auto-configure the phone, but the message never arrived.
I got in touch with the ebay reseller, who suggested that the phone does not work on 1700MHz network provided by T-Mobile. I think it's not exact that, it has to do with the SIM itself.
I will pester T-Mobile store clerk tomorrow and post you results.
Guys, you have to fully read these threads. This issue has been discussed over several threads now.
The current micro SIM cards provided by T Mobile do not play nice with our One X. You have to search the retail stores for a non GBA micro SIM. The non GBA micro SIM cards allow for voice and data and your One X will auto configure.
The newer micro SIMs from T Mobile will only allow for voice. I don't exactly know why that is but that's what it is. Don't bother calling customer care as they cannot order the older/non GBA micro SIM for you. You have to call the physical stores and ask.
Also, you will currently only get 2g data until T Mobile USA switches 3g data to the 1900 MHz band in your area.
Good luck with your search!
AndG404 said:
So i was browsing through the Q and A here
and i found this link
http://forum.xda-developers.com/showthread.php?t=1699347
does this apply to me?
Click to expand...
Click to collapse
Dude, you quoted a thread that I started, and you posted on that thread and I gave you a reply there and now here.
Take the time to read the post. Some of us may be going through what you are going through and are willing to share advice and experiences that may help you but you have to read the post/reply's.
Good luck with your One X.

[Q] MMS doesn't work. :(

I purchased a Galaxy s3 on ebay, SGH-i747 AT&T. ICS 4.0.4 Stock ROM
I used the sim from my old phone and chopped it down, everything worked except MMS. Here is what I've done to try to resolve the issue in order. I searched around the forums and many of the solutions that have been posted were for other types of phones or carriers, the rest didn't work for me.
1. I disabled some of the apps in the stock rom (I haven't flashed a new ROM)
2. I went to an AT&T store and got a micro sim to see if this would resolve it, nope...
3. Installed "SIM Info" from the play store and it shows "SIM Operator Name: Unknown" and "Network Operator Name: Unknown". I have another active AT&T phone (S2 with Paranoid) and SIM Info on it shows "AT&T" where the S3 shows "Unknown". Wondering if this might be the issue, but how can I fix that?
4. I checked the APN and all seems in order, I even copied the APN settings from my other phone. When I go into the network operators and search, no search option comes up, just a grayed out "default settings" thing. I'm not sure if this is normal for a stock ROM.
5. I rooted the phone and put TWRP and SuperSU on it.
6. Installed gApps (first I put on the JB edition by mistake lol, but I fixed that).
Also, I'm not sure if this is a stock rom thing, but the signal bar is always gray, not sure if it is supposed to go blue or not. I do get indicators that 4G is connecting when trying to send MMS. So what can I do? I don't want to install a new ROM on this phone because it is for my wife, but out of the box with the stock ROM MMS isn't working. Is this something that I need to take into the AT&T store and just tell them it is broken and hope they have a solution?
p0wd3r said:
I purchased a Galaxy s3 on ebay, SGH-i747 AT&T. ICS 4.0.4 Stock ROM
I used the sim from my old phone and chopped it down, everything worked except MMS. Here is what I've done to try to resolve the issue in order. I searched around the forums and many of the solutions that have been posted were for other types of phones or carriers, the rest didn't work for me.
1. I disabled some of the apps in the stock rom (I haven't flashed a new ROM)
2. I went to an AT&T store and got a micro sim to see if this would resolve it, nope...
3. Installed "SIM Info" from the play store and it shows "SIM Operator Name: Unknown" and "Network Operator Name: Unknown". I have another active AT&T phone (S2 with Paranoid) and SIM Info on it shows "AT&T" where the S3 shows "Unknown". Wondering if this might be the issue, but how can I fix that?
4. I checked the APN and all seems in order, I even copied the APN settings from my other phone. When I go into the network operators and search, no search option comes up, just a grayed out "default settings" thing. I'm not sure if this is normal for a stock ROM.
5. I rooted the phone and put TWRP and SuperSU on it.
6. Installed gApps (first I put on the JB edition by mistake lol, but I fixed that).
Also, I'm not sure if this is a stock rom thing, but the signal bar is always gray, not sure if it is supposed to go blue or not. I do get indicators that 4G is connecting when trying to send MMS. So what can I do? I don't want to install a new ROM on this phone because it is for my wife, but out of the box with the stock ROM MMS isn't working. Is this something that I need to take into the AT&T store and just tell them it is broken and hope they have a solution?
Click to expand...
Click to collapse
Doesn't work...
Doesn't send?
Error after sending?
Recipient doesn't get it but your phone says sent?
Stock MMS?
3rd party app?
Sent from my SGH-I747 using xda app-developers app
KorGuy123 said:
Doesn't work...
Doesn't send?
Error after sending?
Recipient doesn't get it but your phone says sent?
Stock MMS?
3rd party app?
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Does not send. Eventually fails, and I can't see any error message.
Does not receive, the download button is there, but it never downloads.
No one receives any MMS from this phone, nor any kind of indicator that a message has been sent from it.
Stock MMS and third party app (handscent) both act the same.
Bump
Any ideas? Would logs help? Where can I find them?
You chopped down the sim? As in you cut a big sim down to size?
That might be your problem...
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
luc.highwalker said:
You chopped down the sim? As in you cut a big sim down to size?
That might be your problem...
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
As mentioned, I got a new sim from AT&T after I cut the old SIM down to the micro size and the problem is still there. However, I cannot rule out the SIM being the issue, since SIM Info shows the newtwork operator info as "Unknown". So I guess I should go to the carrier again and get another SIM? Internet, SMS and calls work great on it, just MMS fails. Very puzzling...
p0wd3r said:
I purchased a Galaxy s3 on ebay, SGH-i747 AT&T. ICS 4.0.4 Stock ROM
I used the sim from my old phone and chopped it down, everything worked except MMS. Here is what I've done to try to resolve the issue in order. I searched around the forums and many of the solutions that have been posted were for other types of phones or carriers, the rest didn't work for me.
1. I disabled some of the apps in the stock rom (I haven't flashed a new ROM)
2. I went to an AT&T store and got a micro sim to see if this would resolve it, nope...
3. Installed "SIM Info" from the play store and it shows "SIM Operator Name: Unknown" and "Network Operator Name: Unknown". I have another active AT&T phone (S2 with Paranoid) and SIM Info on it shows "AT&T" where the S3 shows "Unknown". Wondering if this might be the issue, but how can I fix that?
4. I checked the APN and all seems in order, I even copied the APN settings from my other phone. When I go into the network operators and search, no search option comes up, just a grayed out "default settings" thing. I'm not sure if this is normal for a stock ROM.
5. I rooted the phone and put TWRP and SuperSU on it.
6. Installed gApps (first I put on the JB edition by mistake lol, but I fixed that).
Also, I'm not sure if this is a stock rom thing, but the signal bar is always gray, not sure if it is supposed to go blue or not. I do get indicators that 4G is connecting when trying to send MMS. So what can I do? I don't want to install a new ROM on this phone because it is for my wife, but out of the box with the stock ROM MMS isn't working. Is this something that I need to take into the AT&T store and just tell them it is broken and hope they have a solution?
Click to expand...
Click to collapse
there's your problem. It doesn't communicate with google servers (grey vs blue). a little google search (or xda search) will give you the ''how to fix''. Just last week, I made a post about it here but can't remember the solutions specificly.
BWolf56 said:
there's your problem. It doesn't communicate with google servers (grey vs blue). a little google search (or xda search) will give you the ''how to fix''. Just last week, I made a post about it here but can't remember the solutions specificly.
Click to expand...
Click to collapse
Ok cool, I thought it should be blue... Is this the thread you are talking about? http://forum.xda-developers.com/showthread.php?t=2102674
If so, your steps are as follows...
BWolf56 said:
1- Just restart the phone without the SIM card, and connect to some WiFi network, so you can login to your Google Account. It will log you into the account, and then you can put the SIM card back.
2- Add YouTube app and login with gmail account
Go into Gmail App and add account if needed.
Sign into Gmail account wither username and password
Go through login process
3- Hard reset your phone. You will lose all information that is currently on your phone when you do this.
Select Settings -> Security -> Factory Data Reset
Once the phone reboots, input your google account information when the phone asks for it.
Click to expand...
Click to collapse
I'm not sure if this will help, but I will give it a try. I am able to open all of the google apps including the play store and gmail and they are synced up correctly. The calendar seems to be having issues though, so it might also be related. Will this correct the SIM Info message of unknown network?
I tried Step 1 and 2, both passed fine, signal still gray, and still no MMS.
I am reluctant to do a hard reset, only because it is my wife's phone, and she gets annoyed when having to get her wall papers n stuff again. lol I might tell her to just deal with it at this point though. However, pending step 3, if it still doesn't work, and the SIM card still shows unknown network, what options are left? Go to the carrier?
Possible that the phone is bad, maybe that's why the seller sold it, knowing it was a bunk phone. Worst case you can send it in for warranty. Curious, are either of the water marks on the phone pink? My wife dropped a phone in the bath a while back and started having issues with the SIM randomly not being recognized and then not having data (it wasn't her s3,I think it was a vivid.)
Sent from my SAMSUNG-SGH-I747 using xda premium
p0wd3r said:
I tried Step 1 and 2, both passed fine, signal still gray, and still no MMS.
I am reluctant to do a hard reset, only because it is my wife's phone, and she gets annoyed when having to get her wall papers n stuff again. lol I might tell her to just deal with it at this point though. However, pending step 3, if it still doesn't work, and the SIM card still shows unknown network, what options are left? Go to the carrier?
Click to expand...
Click to collapse
Carrier will either factory reset your phone or give you another SIM. One last thing I can think of is that your MMS are blocked (not in your contract). So that could be something to check with your carrier (or on contract).
theraffman said:
Possible that the phone is bad, maybe that's why the seller sold it, knowing it was a bunk phone. Worst case you can send it in for warranty. Curious, are either of the water marks on the phone pink? My wife dropped a phone in the bath a while back and started having issues with the SIM randomly not being recognized and then not having data (it wasn't her s3,I think it was a vivid.)
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
I doubt it's the case here as everything else but MMS works. A damaged SIM or connector won't only block those and let the rest work :silly:
BWolf56 said:
I doubt it's the case here as everything else but MMS works. A damaged SIM or connector won't only block those and let the rest work :silly:
Click to expand...
Click to collapse
Just speaking from experience, I've seen it happen first hand... voice and sms will gimp over a connection sans data, mms on the other hand won't. It was confirmed that the issue my wife had with her phone was a shorted out contact point in the SIM tray. Additionally, the op said he cut down the original SIM, it's possible he didn't do something right and physically damaged something.
I work in an profession that requires me to trouble shoot issues constantly, I learned long ago never to assume that something, regardless of how silly or implausible it may seem, May not be the culprit... we know a few facts...
the phone was purchased second hand.
The SIM card was cut and the phone is not correctly reporting the status of the SIM.
SIM has been replaced, not correcting the issue.
Apn settings have been verified.
No factory reset has been performed.
Now, SIM cards and trays can be very finicky, I have seen a couple phones with bad SIM ports... the issue the op is having may not be related to water damage, but I have seen it happen and there is no reason to discount it until verified.
Sent from my SAMSUNG-SGH-I747 using xda premium
Are you sure it isn't an APN issue? You might want to go into Settings -> Mobile Networks -> and Network Operators and run a search. Then you can check the APN to make sure it is set correctly for MMS.
thacounty said:
Are you sure it isn't an APN issue? You might want to go into Settings -> Mobile Networks -> and Network Operators and run a search. Then you can check the APN to make sure it is set correctly for MMS.
Click to expand...
Click to collapse
True, if it's Straight Talk, you'll need to manually add the MMS APN. I have to do this with pretty much any phone I use, though some ROMs will include ST APN settings.
Thank you all for your input. I'm going to do a factory reset on the phone tonight (if she'll ever get off of the damn thing! lol) and I'll post an update after that. If the SIM still reports that the network is unknown, I'll get a replacement SIM. If it still doesn't work, I'll go on the hunt for a SIM port replacement, but first things first. thanks again, I'll be updating shortly.
Oh, and it hasn't gotten wet, at least the indicators don't show that it has.
p0wd3r said:
Thank you all for your input. I'm going to do a factory reset on the phone tonight (if she'll ever get off of the damn thing! lol) and I'll post an update after that. If the SIM still reports that the network is unknown, I'll get a replacement SIM. If it still doesn't work, I'll go on the hunt for a SIM port replacement, but first things first. thanks again, I'll be updating shortly.
Oh, and it hasn't gotten wet, at least the indicators don't show that it has.
Click to expand...
Click to collapse
Check APN's before factory reset.
I had a similar issue, I had to call AT&T and have them give me the correct settings to put in under the "message setting" option under the messaging app settings.
TehWez said:
I had a similar issue, I had to call AT&T and have them give me the correct settings to put in under the "message setting" option under the messaging app settings.
Click to expand...
Click to collapse
Can you tell me what settings those are? Also, what APN settings do you have?
Funny, MMS suddenly started working, both outgoing and incoming, but SIM Info still shows network operator unknown. :S I'm afraid that this issue is going to come back... I'm still leaning toward going into an AT&T store and getting a third SIM...

[Q] S3 T999 stuck on EDGE

Does anybody know how DocHoliday77 solved the S3 T999 stuck on EDGE problem? I've tried PM, but he seems to be gone. My T999 works fine in every way, except for being stuck on EDGE.
My IMEI is not 0. I've entered my IMEI on T-Mobile's IMEI verification web page, and it says it's good to go.
I bought 4 of these exact same phones several months ago -- kept one for myself and gave the others to my kids. Mine had the infamous problem where the seller had restored it to stock, but the flash counter was 1.
I recently tried a couple things to solve the EDGE-only problem. I first tried flashing CM11, thinking it might have better controls and better luck, but nope -- same problem, EDGE only. After that I decided to follow the thread about how to completely unroot, reset the flash counter, and get completely back to stock. After doing that, my device status began reporting as "official" (where before it had said modified), and I immediate got the OTA update from T-Mobile to push me up to 4.3.
Even after that, I'm still stuck on EDGE. If I try changing my network settings from WCDMA/GSM (Auto) to WCDMA only, I get no signal at all.
I tried the NV reader/writer to save my IMEI from location 550 (decimal) and then write it back; that didn't do anything either.
Since the other identical phones I gave to my kids do not have this problem, I know it is not my network nor my local towers. I also got all 4 of our SIM cards at the same time from the T-Mobile store, so I don't see how it could be the SIM card.
I suppose it's possible that I just have bad hardware, but it would be strange that only the 3g/4g part would be bad. It seems like something is just screwy with the firmware somehow, and I don't know how to get to it or where else to look.
Since I can't seem to reach DocHoliday77, can anyone point me in the right direction?
-Matt
sgh-t999

SGH-M919 No Data

Howdy,
About 3 weeks ago, I bought two refurbished SGH-M919 phones off eBay to replace mine and my wife's broken/old phones. Her phone was worse off, so the first one I set up was to be hers. Rooted, installed TWRP, and flashed Mokee with no issues. Put her SIM in, put her data back on, she's good to go.
I go to set the next one up for myself, do everything the exact same way, and came to realize after I put my SIM in that the phone is not connecting to LTE. Call/SMS/Wifi all work fine. I didn't notice whether or not it was doing this before rooting, recovery, and ROM.
It's giving me a "Sign-in to network" notification. I tap it, it takes me to a T-Mobile ConnectMe screen. It gives me a "Get Started" button, which I tap, and it says "We're sorry, you have switched your SIM card between different devices, so you will need to manage your account through My T-Mobile or the MyAccount app. Once you have replaced the original SIM card, you may resume managing your account through on-device account maintenance." I can only tap close. My wife's phone didn't give me this "error". I made sure the APN settings were identical between the phones, they were.
I called T-Mobile, they gave me a bit of runaround, said everything looked fine from their end, and "rebooted the connection" which didn't improve anything. They also had me verify my APN settings with them. They had me enter some different values, but it didn't change anything. They also advised me against purchasing phones from less than reputable sources. Great, thanks, that was helpful.
I switched the SIM cards between the two phones and this one is still not connecting to LTE, the other phone is. This led me to think maybe it was a hardware issue, and looked into the modem as a possibility. I found that T-Mobile updated the baseband last month on the stock 4.4.4 ROM, so I flashed that baseband and no change. Both phones were on NH7 when I received them.
I happened to notice on my T-Mobile account page that the device status is listed as "locked/unknown." So, I called T-Mobile twice today for an unlock code. The first guy was less than helpful but the second person did enter an unlock request for me, theoretically, I am currently waiting for that email to show up sometime in the next 24 hrs. But, the phone so far has not given me an unlock prompt so I'm not quite sure what I'm going to do with that unlock code once I get it. I'm also not 100% clear on whether the code is for a SIM unlock (which I shouldn't need) or what exactly. It is just the next in a series of ideas which I'm rapidly running out of. A check of the IMEI number revealed it was clean on all US carriers, with the exception of T-Mobile and Sprint which both come up as "unknown." Don't know if that means anything or not.
I'm getting ready to jam this eBay store up, but I'd really rather the phone just start working. I've been dinking with this for weeks and my frustration is mounting, especially since I can't seem to find anyone else who has had/posted about this problem before. I'm not a cell phone hobbyist or anything, and I'm just going off what I can find on Google and places like this. Any ideas/help would be appreciated.
Thanks,
Tony
I am not familiar with the issue, just some extra troubleshooting ideas...
Have you checked under the battery and confirmed the model number is SGH-M919 and the IMEI matches matches what is on the phone?
Have you checked your APN settings?
Have you tried flashing a complete full stock firmware -
http://forum.xda-developers.com/showthread.php?p=64431358
lumin30 said:
I am not familiar with the issue, just some extra troubleshooting ideas...
Have you checked under the battery and confirmed the model number is SGH-M919 and the IMEI matches matches what is on the phone?
Have you checked your APN settings?
Have you tried flashing a complete full stock firmware -
http://forum.xda-developers.com/showthread.php?p=64431358
Click to expand...
Click to collapse
IMEI under the battery matches what comes up with *#06#.
I did check on the APN settings, forgot to mention that. I edited it into the first post, added text in red:
dauntless89 said:
It's giving me a "Sign-in to network" notification. I tap it, it takes me to a T-Mobile ConnectMe screen. It gives me a "Get Started" button, which I tap, and it says "We're sorry, you have switched your SIM card between different devices, so you will need to manage your account through My T-Mobile or the MyAccount app. Once you have replaced the original SIM card, you may resume managing your account through on-device account maintenance." I can only tap close. My wife's phone didn't give me this "error". I made sure the APN settings were identical between the phones, they were.
I called T-Mobile, they gave me a bit of runaround, said everything looked fine from their end, and "rebooted the connection" which didn't improve anything. They also had me verify my APN settings with them. They had me enter some different values, but it didn't change anything. They also advised me against purchasing phones from less than reputable sources. Great, thanks, that was helpful.
Click to expand...
Click to collapse
I didn't flash a full stock firmware. I had issues flashing the non-hlos.bin to the phone, which as I understand it is the more important of the two files for my issue since it does the LTE. However, Wifi works perfect with transfer rates equal to the other phone. So, I don't know.
I'm downloading OK3 now. I read about a guy updating his modem by backing up his custom ROM, flashing a stock rom, and restoring his custom ROM. Will TWRP back up my current NH7 non-hlos.bin? If so, can I manually remove it from the recovery image without borking anything?
For your situation, just flash the full firmware. Don't remove anything from the tar. OK3 is the newest modem. Get your phone working and go from there.
Yeah, I think I'll do that when I get home, unless someone has a better idea. :fingers-crossed:
dauntless89 said:
Yeah, I think I'll do that when I get home, unless someone has a better idea. :fingers-crossed:
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=3276231
Try to flash the latest stock... Before flashing reset your device (take data/photo etc backup).... Hope that should resolve the issue....
Also what is it showing in settings > network? Is it LTE or 2G or 3G???
Sent from my SGH-M919 using Tapatalk
Thanks, that's the one I'm downloading and I'll try flashing it when I get home. It looks like it will replace TWRP and everything, bringing the phone completely back to stock?
In the mobile network settings > mobile network menu, it shows the preferred network as LTE.
Yes. It will be completely stock. If it works, you can then root and put TWRP on and go from there.
Alright, flashed the afore-linked OH3 ROM and the LTE is still broken. The phone shows up as connected to LTE, but nothing works. Play Store times out, both stock internet browsers time out. I still get the same T-Mobile nag that I got before and it still doesn't let me do anything.
Also got the unlock email from T-Mobile:
[FONT=&quot]Thank you for taking the time to contact T-Mobile. We have received your SIM Unlock Request. Unfortunately, we are unable to process your request at this time because we are only able to provide unlock codes for T-Mobile USA handsets. Please refer your unlock request for this equipment directly to the carrier that the handset was purchased from.[/FONT]
Click to expand...
Click to collapse
Is there anything left to troubleshoot, or do I return it as defective?
If data works for your sim card in your wife's phone and not for your sim card in your phone, it would have to be a phone issue. You can double check if data works with your wife's sim card in your phone.
If your APN settings match your wife's phone with her data working, the last thing I can think of to try is go to Settings, under Connections go to More networks > Mobile networks and check Data roaming just in case your phone is roaming for whatever reason.
If your phone was locked on a different carrier, I don't think you would have cell service. If your IMEI was blacklisted or borked, I don't think you would have cell service.
I'd return the phone.
lumin30 said:
If data works for your sim card in your wife's phone and not for your sim card in your phone, it would have to be a phone issue. You can double check if data works with your wife's sim card in your phone.
If your APN settings match your wife's phone with her data working, the last thing I can think of to try is go to Settings, under Connections go to More networks > Mobile networks and check Data roaming just in case your phone is roaming for whatever reason.
If your phone was locked on a different carrier, I don't think you would have cell service. If your IMEI was blacklisted or borked, I don't think you would have cell service.
I'd return the phone.
Click to expand...
Click to collapse
I will check on those two things when I get home, but my thought process was similar to yours. Both my wife's new phone and the LTE Wifi hotspot we use for our internet service have full signal on LTE everywhere in the house, so my best guess at this point is there's a hardware issue with the modem in the phone. I might look into replacing whatever board the modem is on. If it's relatively cheap, I'd rather just pay for the part instead of waiting 2-3 weeks for turnaround on the return/exchange, but I think that's probably what we're gonna end up doing.
Thanks for the help, fellas. I appreciate it.

G7 Power (XT1955-5) kicked off AT&T network despite being VoLTE compatible?

Has anyone else experienced the same problem? Is there any way to get them to reactivate it?
I had an an XT1955-5 that was fully functional on the AT&T network, including voice over LTE. I bought this phone because XT1955-5 was on their list of approved phones. I even checked the sim status to verify that it didn't kick down to 3g/H+ when I made a call, and it had the HD symbol on the call screen.
Despite this, AT&T disabled it because they were shutting down the 3g network. I got them to reactivate it and it worked again for several months. Then, when they sent me the cheap replacement phone and sim card, they deactivated my old phone and I couldn't get it to work again. I tried calling them and talking to their technical support to explain the situation that VoLTE was fully functional on it. They didn't seem to know much other than "the computer says this phone isn't compatible." They said they would try changing my provisions, but they ended up making it much worse so mobile data wouldn't even work anymore.
Do they just go by an IMEI whitelist that can't be overridden? My best guess is that they seem to be shutting down all phones that weren't AT&T branded, so this one gets the axe because it was unlocked from another carrier. This is very disappointing because I really liked this phone for a combination of several factors that I can't seem to find in any others.
Unless I'm misreading the list, this is a whitelisted device on the AT&T network.
Correct, the model number is on their whitelist. That's why I chose this phone and why it's so frustrating that it was deactivated. I guess there's a subset of whitelisted IMEIs within that list, but isn't published. This particular one must not have been on their whitelisted IMEI list because it was unlocked from a nother carrier. Do you know if there's any way to get ATT to add it of am I SOL?
They say nothing about IMEI number limitations.
As long as it's not blacklisted there shouldn't be an issue. This list was just revised so your phone may not have been previously whitelisted.
There's quit a bit of confusion is what I gathered.
Some of the AT&T features like vid calling won't work without the AT&T software maybe firmware. Guess we'll both find out on the 22nd.
Call AT&T advance tech support as this is the game that moves as you play it.
I have a development:
I flashed back to stock/RetUS ROM from LineageOS 18.1 to try to fix wifi calling on T-Mobile since I was trying to switch to them due to this hassle. While I was at it, I read a post on a forum for another phone, where the person said they reflashed stock to reprovision the sim. I figured it's worth a try, so I popped in my AT&T sim card while on stock ROM and to my surprise, it fixed it. The LTE network is fully functional, at least for now. I didn't think Lineage did anything to change the radio firmware or whatever it is that controls how it interacts with the cell carrier. I guess I was wrong.
Now, I wonder if I'm stuck with the stock ROM because AT&T will detect a change and shut it down, or if I can get away with switching back to Lineage. I'll try it soon.
MotoMan1955-5 said:
Now, I wonder if I'm stuck with the stock ROM because AT&T will detect a change and shut it down, or if I can get away with switching back to Lineage. I'll try it soon.
Click to expand...
Click to collapse
AT&T isn't witch hunting. As long as it's firmware is compatible with their protocols it will work.
I have no clue what those protocols are though.
(deleted, mistook carrier)
I've pretty much lost hope at this point but I might as well share some more of this madness I'm experiencing. Maybe you'll even get some amusement out of my struggles.
VoLTE continued to work with the stock ROM. I flashed LineageOS again last night and was pleased to see VoLTE still worked. It went fine all day until someone in person mentioned to me that they texted me yesterday but I didn't respond. I never received the text, and I tried sending them one and they had not received that either. Since I was on the stock ROM when that text had been sent, I figure it was something still incorrectly configured with the carrier. I tried messages to several other people. They would all say "sent" but only a couple actually made it to the recipient, and likewise I could not receive messages from most people.
When I got home, I switched the sims around in a couple of phones to narrow down whether it was my phone or my sim that was causing the issue. It turned out to be the sim, as evidenced by successful messaging with a different sim in my phone but not my sim in a different phone. I happened to have the SIM in the AT&T Callypso when I called ATT customer support to see if they could fix the problem. Ultimately they did. VoLTE worked. Messaging worked.
I switched the SIM back to the G7 (currently running LineageOS 18.1). I made a quick call to confirm VoLTE still worked. It did. Great success! Then right after that I got the dreaded message saying they're updating the network and the phone I was trying to activate will not work. Now, it drops from LTE to H+ any time I have an incoming/outgoing call again, and mobile data doesn't even work now. At least messaging works now.
To make things worse, now it isn't even automatically reprovisioning when I put the sim in a new phone so I can't automatically get those privileges back like I did before. To make it double-worse, the sim for my spare line got the same screwed up status from being inserted into the G7 that it now has the same troubles.
Blackhawk, I agree that they probably aren't witch hunting or intentionally making this difficult, but obviously its network is changing my privileges when I put the SIM card in this phone. It seems to be that switching a sim to a new phone sends that phone info to the carrier, and if they have it on their list they automatically adjust the types of services available to that line to fit the phone. I suspect that info it sends also includes some software info, considering how it worked as intended when I had the stock software but not with Lineage which it probably did not recognize. My best guess is that I got away with flashing Lineage yesterday because my line was already configured correctly from when I had the stock rom, and since the SIM didn't change with the Lineage flash, it kept that same configuration. Moving it to another phone and back made it see the G7 as a new phone again, and it sent the info but the software wasn't recognized so I didn't get the good privileges.
ffdm, unfortunately you seem to be correct about just getting the runaround if your issue isn't common. The tech support people don't seem interested in anything other than their pre-scripted instructions, and it doesn't help that the support has clearly been outsourced to another country so they are hard to understand.
I have one last hope which is to put the SIM into the G7 totally stock, call customer support and have them reset the provisions for this line, then flash Lineage again and hope it never triggers the automatic provisioning ever again.
I just want a phone with a long battery life and AOSP not bloated with spyware that sends all my information to third parties that profile me. It shouldn't be this hard.
MotoMan1955-5 said:
I've pretty much lost hope at this point but I might as well share some more of this madness I'm experiencing. Maybe you'll even get some amusement out of my struggles.
VoLTE continued to work with the stock ROM. I flashed LineageOS again last night and was pleased to see VoLTE still worked. It went fine all day until someone in person mentioned to me that they texted me yesterday but I didn't respond. I never received the text, and I tried sending them one and they had not received that either. Since I was on the stock ROM when that text had been sent, I figure it was something still incorrectly configured with the carrier. I tried messages to several other people. They would all say "sent" but only a couple actually made it to the recipient, and likewise I could not receive messages from most people.
When I got home, I switched the sims around in a couple of phones to narrow down whether it was my phone or my sim that was causing the issue. It turned out to be the sim, as evidenced by successful messaging with a different sim in my phone but not my sim in a different phone. I happened to have the SIM in the AT&T Callypso when I called ATT customer support to see if they could fix the problem. Ultimately they did. VoLTE worked. Messaging worked.
I switched the SIM back to the G7 (currently running LineageOS 18.1). I made a quick call to confirm VoLTE still worked. It did. Great success! Then right after that I got the dreaded message saying they're updating the network and the phone I was trying to activate will not work. Now, it drops from LTE to H+ any time I have an incoming/outgoing call again, and mobile data doesn't even work now. At least messaging works now.
To make things worse, now it isn't even automatically reprovisioning when I put the sim in a new phone so I can't automatically get those privileges back like I did before. To make it double-worse, the sim for my spare line got the same screwed up status from being inserted into the G7 that it now has the same troubles.
Blackhawk, I agree that they probably aren't witch hunting or intentionally making this difficult, but obviously its network is changing my privileges when I put the SIM card in this phone. It seems to be that switching a sim to a new phone sends that phone info to the carrier, and if they have it on their list they automatically adjust the types of services available to that line to fit the phone. I suspect that info it sends also includes some software info, considering how it worked as intended when I had the stock software but not with Lineage which it probably did not recognize. My best guess is that I got away with flashing Lineage yesterday because my line was already configured correctly from when I had the stock rom, and since the SIM didn't change with the Lineage flash, it kept that same configuration. Moving it to another phone and back made it see the G7 as a new phone again, and it sent the info but the software wasn't recognized so I didn't get the good privileges.
ffdm, unfortunately you seem to be correct about just getting the runaround if your issue isn't common. The tech support people don't seem interested in anything other than their pre-scripted instructions, and it doesn't help that the support has clearly been outsourced to another country so they are hard to understand.
I have one last hope which is to put the SIM into the G7 totally stock, call customer support and have them reset the provisions for this line, then flash Lineage again and hope it never triggers the automatic provisioning ever again.
I just want a phone with a long battery life and AOSP not bloated with spyware that sends all my information to third parties that profile me. It shouldn't be this hard.
Click to expand...
Click to collapse
If these apply to you try:
Clear system cache
Clear Sim Toolkit data
Reset network setting
Get a new sim card from AT&T, handle like a stick of ram as they can be damaged by ESD.
From what is described, it does sound like a provisioning issue, and calling to get it fixed would probably be the correct solution. But why is it flagged as incompatible? Why would that status be persistent for that line? It's weird.
FWIW, AT&T kicked me off for switching from a OnePlus 6 (not a 5g phone) to a OnePlus N10 (5G phone). They were nice enough to disable my account on a Friday night when I switched sims, and was without cell service all weekend since they apparently don't want to do customer service outside banker's hours. Couldn't use the old one either (on 4G), I was completely blacklisted.
T-Mobile happily accepted my porting on Monday .
I'll save my unkind thoughts past "maybe consider firing them" as I don't want to sound like a loonie.
Man, I wish I could switch. I actually tried switching to a T-Mobile MVNO. They provisioned my SIM correctly, but unfortunately their coverage was insufficient in my rural area. I considered sticking with them and using wifi calling at home if that would work, but that feature was broken on lineage and I thought I got this to work correctly with AT&T.
I did get it working by flashing stock again, calling ATT to have them correctly provision it, then flashing LineageOS again. It has been working properly for about a week so with any luck I'll get to continue using the phone.
The 22nd came and went. I'm noticing some vids pause occasionally. May be just a random glitch otherwise no change. I may eventually try a network reset and have AT&T do it on their end.
Long live 4G LTE

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