Develop Bugs

[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...

How to remove voicemail icon?

Hi!
So i looked on the forums and post of the zenfone 2 , and i cant find anyone asking this... Or i am a fool because i don know how to do it, or it cant be removed on stock rom (updated to the last one)
This voicemail is from years ago, so i dont remember the password :silly: sry, but i dont want to call "customer care" because they are slow and time consuming
Cheers!

Funnily enough I had a similar problem, no way could I get rid of the notification icon.
I fixed it by rebooting the phone, icon gone ?

Who is this voicemail with?

tetij said:
Who is this voicemail with?
Click to expand...
Click to collapse
I use Vodaphone. (in UK).

sandozer said:
I use Vodaphone. (in UK).
Click to expand...
Click to collapse
Ok, I'm with Rogers (Canada) and normally it won't go away until I check all my messages. I saw that you said you forgot the password for it. If you don't want to talk to them over the phone use their livechat option. I normally do that if I'm on the computer doing other stuff as well, just a suggestion.

December 26 2017 update LS992ZVE

I just received a new update on G5 sprint to upgrade to LS992ZVE_5. Will it relock my sim card

kleinkel said:
I just received a new update on G5 sprint to upgrade to LS992ZVE_5. Will it relock my sim card
Click to expand...
Click to collapse
i want to know the same, if somebody update please tell us..

Stay safe and don't try.

i take the risk... and the result its... My phone still unlocked ... u can upgrade guys
PD: i unlock my phone with optopus box in past version

Did the update add any new feature

still unlocked!
NinjarD said:
i want to know the same, if somebody update please tell us..
Click to expand...
Click to collapse
I have updated to zve... my phone is still unlocked! :good:

Phone remains unlocked. Unfortunately, it wipes APN data and now I can't go in and edit APN. Anybody have any work arounds? I can't add an APN (no option) in the settings menu (settings - more - mobile networks - access point names) nor in the ##3282# menu with the MSL. It's been a huge pain and I'm currently trying to use this phone in Peru. It can make and receive calls/texts but will not access the internet without being able to add/edit APN's.

Hi, I just want to know can I downgrade ZVE update

Mortal Eternity said:
I have updated to zve... my phone is still unlocked! :good:
Click to expand...
Click to collapse
I have a problem.... I upgraded to zvc ..my phone got unlocked remotely but my facebook..twitter.instagram and whatsapp won't work well with mobile data.. How can I solve

didospike said:
Hi, I just want to know can I downgrade ZVE update
Click to expand...
Click to collapse
No

kleinkel said:
Did the update add any new feature
Click to expand...
Click to collapse
It's a security update, so no. If you guys want to keep your unlock, DON'T UPDATE.

dont update.. As i unlocked my phone from the hidden menu app but as i updated it got locked (and i can't seem to find any solution whosoever).. You cant go back and downgrade and you cant unlock it again with the hidden menu app..
But if anyone knows how to do it please i beg you i need help as it was my gift to my father and i fu..ed it up :crying:

Why,LG, why?
Gah this is so frustrating. I had my phone unlocked by sprint and am currently abroad, but had the wonderful combination of ideas to both update to ZVE and reset network settings. I've already been using this international sim for five months and everything was fine and dandy, but now I can't add an APN so I can't connect to the internet (the apn settings are greyed out) - I even spoke to Sprint for 3 hours and they concluded there's nothing they can do. I'm thinking there's one of three things to be done: change the APN by some "hack" like a dialer code or ADB, revert to previous firmware, or connect to the internet somehow without an APN.
Does anyone know how to do either of three things? Please help.
Update: I called LG and Sprint for a combined total of about 5 hours. LG confirmed that indeed with ZVE they disabled manual changing of APNs (due to "security") and they don't even have a special code or anything to fix that. They said I should ask Sprint to maybe push an ota apn for the international carrier but they said they can't do that. The LG guy said that he would add a ticket (they can't even talk to anyone higher up) to tell the dev team to add an option again to change APNs but I don't know how likely that'll be. It's just super frustrating that LG pushed an update to break international data and now says they can't do anything about it. Reminds me of my bootlooped Nexus 5x that they said they couldn't do anything about. Smh lg, smh.

BuntzenB said:
Gah this is so frustrating. I had my phone unlocked by sprint and am currently abroad, but had the wonderful combination of ideas to both update to ZVE and reset network settings. I've already been using this international sim for five months and everything was fine and dandy, but now I can't add an APN so I can't connect to the internet (the apn settings are greyed out) - I even spoke to Sprint for 3 hours and they concluded there's nothing they can do. I'm thinking there's one of three things to be done: change the APN by some "hack" like a dialer code or ADB, revert to previous firmware, or connect to the internet somehow without an APN.
Does anyone know how to do either of three things? Please help.
Update: I called LG and Sprint for a combined total of about 5 hours. LG confirmed that indeed with ZVE they disabled manual changing of APNs (due to "security") and they don't even have a special code or anything to fix that. They said I should ask Sprint to maybe push an ota apn for the international carrier but they said they can't do that. The LG guy said that he would add a ticket (they can't even talk to anyone higher up) to tell the dev team to add an option again to change APNs but I don't know how likely that'll be. It's just super frustrating that LG pushed an update to break international data and now says they can't do anything about it. Reminds me of my bootlooped Nexus 5x that they said they couldn't do anything about. Smh lg, smh.
Click to expand...
Click to collapse
Welcome to my hell. I tried to warn the community in my comment about this exact issue. I spent weeks talking to Sprint and LG's useless "technical support." LG reps kept insisting that LG has nothing to do with software updates which is completely wrong and extremely ignorant of them to think that. Sprint advanced tech support even conferenced LG in on a call once that lasted about 45 minutes and the LG rep kept saying they don't have anything to do with the updates. Finally, we got him to agree that they did make the updates. But, even that was a waste of time. It wasn't until I wrote to LG through their website that I got several responses (mostly the same as before - walking you through how to change APN settings) but, finally in those conversations, I was able to get LG support to admit that they had a problem with ZVE and that they are the ones that broke it. The last response I got was that their developers are aware of the problem and are working to fix it. It probably won't be fixed until the next software update and they won't give me any timeline as to when that will be. It's been a couple of weeks since I last talked to LG. My advice is to do the same and file a bug error on their website. Calling in is a complete waste of time. They need more reports on this so that they know this is a big issue. You can't even go in with your MSL and change APN's. If they were really worried about security, they would at least allow the carriers to give you permission to modify the APN. Seems completely nonsensical to me.

Never update if you have an unlock. I've said this a hundred times... Maybe you can get on eBay and get a remote unlock.

somy body plz can you post this upgrade ?
kleinkel said:
I just received a new update on G5 sprint to upgrade to LS992ZVE_5. Will it relock my sim card
Click to expand...
Click to collapse
somebody plz can you post this upgrade ? mb it will help to recover some phones who has updated allready.
i think it stores on ota directory on your ls992

acidlenin said:
somebody plz can you post this upgrade ? mb it will help to recover some phones who has updated allready.
i think it stores on ota directory on your ls992
Click to expand...
Click to collapse
It stores in /cache which you can't get to without root. I didn't see how it would help anybody either.

Sympathy, empathy
kephaisrock said:
Welcome to my hell. I tried to warn the community in my comment about this exact issue. I spent weeks talking to Sprint and LG's useless "technical support." LG reps kept insisting that LG has nothing to do with software updates which is completely wrong and extremely ignorant of them to think that. Sprint advanced tech support even conferenced LG in on a call once that lasted about 45 minutes and the LG rep kept saying they don't have anything to do with the updates. Finally, we got him to agree that they did make the updates. But, even that was a waste of time. It wasn't until I wrote to LG through their website that I got several responses (mostly the same as before - walking you through how to change APN settings) but, finally in those conversations, I was able to get LG support to admit that they had a problem with ZVE and that they are the ones that broke it. The last response I got was that their developers are aware of the problem and are working to fix it. It probably won't be fixed until the next software update and they won't give me any timeline as to when that will be. It's been a couple of weeks since I last talked to LG. My advice is to do the same and file a bug error on their website. Calling in is a complete waste of time. They need more reports on this so that they know this is a big issue. You can't even go in with your MSL and change APN's. If they were really worried about security, they would at least allow the carriers to give you permission to modify the APN. Seems completely nonsensical to me.
Click to expand...
Click to collapse
How does one file a bug report? I looked and couldn't find it.
As to the reason I updated my phone, I'm very involved in security and need the newest security patches I can get. Also, I don't know/don't think a remote unlock will help, I think it is actually fully impossible to add an APN at this point... I even had sprint lock and unlock my phone...

BuntzenB said:
How does one file a bug report? I looked and couldn't find it.
As to the reason I updated my phone, I'm very involved in security and need the newest security patches I can get. Also, I don't know/don't think a remote unlock will help, I think it is actually fully impossible to add an APN at this point... I even had sprint lock and unlock my phone...
Click to expand...
Click to collapse
Sometimes you can't have your cake and eat it too. A bug report will get you nowhere. I've filed legitimate bug reports with solutions and didn't even get a reply. They did this on purpose and don't care if it effects you. They don't want you to use your device the way you want, they want you to use it the way they want.

I read this in other post
Idk this work
HiddenMenuCall
Google, download and install HiddenMenuCall_1.7.apk
Go to LTE Settings
Go to APN Settings
Set APN there and use "default,dun,fota" as APN Type
Restart phone
Done!

Pixel XL on Verizon MVNO - April Security patch has disabled my 4G.

I had 4G before this update, but nothing I do, no matter how many different APN settings I try, no dice.
I'll tell you where I've been. Have had the phone at least a year and it came with Nougat.
As soon as I got it, I got a Total Wireless SIM (owned by Tracfone and running on Verizon's network) and activated it with no problems. Had full service. 4g, mms, etc. All was great.
Even when I got the 8.0 notification and I updated to Oreo, all worked fine.
A few months back, I got the 8.1 notification. I allowed it to install and when It booted back up, I had no service at all.
Found this thread, Android 8-1 - How to Edit Cellular APN, and one post in there got me with the phone setup and connected to my computer running ADB commands, which allowed me to at least add an APN.
Adding the standard TRACFONE.VZWENTP apn you can easily find via Google searching fixed the problem. (Had to add mms port of 80 but otherwise, all was perfect)
About a week back I get the 8.1 notification again, which i thought was weird since I was already running 8.1
Turns out it was the April Security Patch for 8.1 (i suppose as that's the only reasoning that makes sense to me right now).
After it installed and did it's thing, I only had 3G service, which around here is prone to many interruptions, aside from the slow speed.
I checked, and it's still using the APN I set up. Nothing has changed on that APN, nor anywhere else I can see.
I even added a new one with the same data, and same thing, 3G.
I've searched the threads here, tried some of the other suggestions but none have worked.
I've even went as far as to get Smail to unlock my bootloader (it's a verizon Pixel XL) and from there I've rooted installed twrp and rooted etc, all in hopes that I could try another method listed in that thread i linked above, using an adb shell with root permissions to view the "default" apn data, thinking maybe something in there is messing it all up.
I had no luck there because even though the phone is rooted now, there was something else I have to do to run an adb shell with root permission and seems the easiest way to get that done is just install a custom rom.
Still, what baffles me is, isn't this what the SIM card is partly for?
And why would software updates disable service, or parts of service?
Seems odd that a software upgrade would effect how the phone uses the service, especially when a custom apn is setup and unchanged.
I have scanned these forums for hours over the past few days and I would really love some direction on what to try next.
Any ideas are appreciated. Thanks!

Play around in the *#*#4636#*#* dialer menu just don't hit the update button beside the smsc input field

Sometimes, the best thing to do is to go to total wireless and ***** at them till they deal with it. I don't think its something you need to stress over. It's Verizon's and Total Wireless's responsibility to get your 4g LTE back. I just dealt with T-Mobile with the same issue. no 4G but call and texting worked. APN set right but they did something on their side and got me back on track after handing them my phone.(in store)

DR3W5K1 said:
Play around in the *#*#4636#*#* dialer menu just don't hit the update button beside the smsc input field
Click to expand...
Click to collapse
Oh wow, never knew about this. Brought up all kinds of options. Will mess around and see if I can find something useful.
acters said:
Sometimes, the best thing to do is to go to total wireless and ***** at them till they deal with it. I don't think its something you need to stress over. It's Verizon's and Total Wireless's responsibility to get your 4g LTE back. I just dealt with T-Mobile with the same issue. no 4G but call and texting worked. APN set right but they did something on their side and got me back on track after handing them my phone.(in store)
Click to expand...
Click to collapse
I would but Total Wireless doesn't have a store front or even a kiosk. They're kinda like Straight Talk, but just for Verizon phones. Verizon naturally won't have anything to do with it since I'm paying their competition to use their network.
I had thought about going through the activation again, but when i put my IMEI # on their website now, it says my phone is not compatible. A year ago it said it was, and it has been until this update.
I've considered flashing 8.0 and see if that lets it work again, but I don't like the thought of not being to update my phone or i'll lose parts of my service.
Thanks for the suggestions yall. Will repost if the dialer code leads me somewhere helpful.

kamikazeedriver said:
I had thought about going through the activation again, but when i put my IMEI # on their website now, it says my phone is not compatible. A year ago it said it was...
Click to expand...
Click to collapse
Oh my, can you confirm if your IMEI is the same one as the one as last year?

They are probably getting money hungry and want people to buy phones from them. There is a big chance that hidden menu could solve your problem though. Regarding the imei the only way that could be a problem is if yours was somehow stolen

DR3W5K1 said:
They are probably getting money hungry and want people to buy phones from them. There is a big chance that hidden menu could solve your problem though. Regarding the imei the only way that could be a problem is if yours was somehow stolen
Click to expand...
Click to collapse
I think it shows up as an issue because I'm currently using it. I just tried it again and it said "there was an error." When I tried it a few days ago it had said the same, "there was an error, contact customer support"
It's possible that time it showed up as incompatible i had punched a number in wrong.
Can't confirm if it's the same IMEI i had a year ago but it would be weird if that changed.
Couldn't find anything in the hidden menu except when I checked "Carrier Provisioning Info" showed up that it last attempted it yesterday and had failed.

Well as a last ditch .. just a thought here. Pull the sim power on your phone delete the apn. Perform a reboot insert sim and wait. Still nothing? Check apn add if necessary and reboot. Profit?

DR3W5K1 said:
Well as a last ditch .. just a thought here. Pull the sim power on your phone delete the apn. Perform a reboot insert sim and wait. Still nothing? Check apn add if necessary and reboot. Profit?
Click to expand...
Click to collapse
I did try that after the april update.
With no APN, I get no service, which first happened right after the first 8.1 update. That lead me to adding the APN.
I haven't tried it since I've unlocked the bootloader.
I will try again before flashing back to 8.0.
8.0 was the last time my phone worked just fine with no custom APNs or anything.
I thank y'all for the ideas.
I would like to know if I'm the only one with this specific problem.
Is anyone else experiencing this issue with the 8.1 updates using a Verizon MVNO?

For future reference that provisional menu will be populated with answers other than no. If you have the proper apn etc..

DR3W5K1 said:
For future reference that provisional menu will be populated with answers other than no. If you have the proper apn etc..
Click to expand...
Click to collapse
Want me to take a screenshot of the provisional menu? I don't know what I'm looking for in that menu.
As far as APN, it never needed to make one until the first 8.1 update but all worked fine afterwards. It's only since the April update that I have issues.
Will report back after trying to reset without the sim again

If a fresh image+apn doesn't fix it the only other thing that "you” could try would be replacing the Sim. Sometimes the Sim can fry. Could also be as easy as reseating it.

It's fixed
Here's what I had to do.
I did a wipe install (flash all.bat) of an 8.0 Oreo image as it was the last time I had LTE without even having to do anything (like setup a custom APN etc)
After that was successful, I did a no-wipe install of the 8.1 (April 2018) image, and afterwards, and once it was booted, all was well, I have LTE and everything with no custom APNs needed.
Thanks to everyone who offered help in getting me in the right direction.
In addition to what I previously mentioned that I had tried, I also tried:
-I did try a wipe install of 8.1 a few days ago but still with no success. Even with tweaking APN settings.
-I messed around with the carrier provisioning menu and could see I was not getting LTE and when I told the phone LTE only, then no service at all, so I set it back to LTE/CDMA/UMTS (that's what it was already on.)
-Tried dialer code *228 to "activate" my service, but that had no change.
I went back, this morning, to the thread I first looked at after the first 8.1 update I had which disrupted my service completely and ended up with me using an adb shell to do something that allowed me to add APNs and subsequently setup an APN that worked for me until the 8.1 April security update.
Noticed this post:
ThePhoneGeek said:
I have this same issue and the only solution I've found is to full wipe go back to 8.0 activate on Verizon's network (I too use a VZN MVNO) and then flash the full 8.1 package without wipe.
Click to expand...
Click to collapse
I can't say I understand why that worked when a completely fresh wiped install of 8.1 didn't, but it did so I'll take it.
The next thing I was going to try, if it hadn't worked, was changing the radio band in the provisioning menu as that seemed to work for another person.
Either way, all is well for now. Thanks for all the advice!

kamikazeedriver said:
Noticed this post:
I can't say I understand why that worked when a completely fresh wiped install of 8.1 didn't, but it did so I'll take it.
The next thing I was going to try, if it hadn't worked, was changing the radio band in the provisioning menu as that seemed to work for another person.
Either way, all is well for now. Thanks for all the advice!
Click to expand...
Click to collapse
The only thing I've come up with is that starting on 8.1 flashing full wipe for VZN users (or perhaps limited to VZN MVNO's) with unlocked bootloaders is not allowing the device to activate on the network. I suspect VZN hanky panky at work but I am generally a skeptic that way. Once you get it the way you want it you can update each month with the full firmware but remove the -w in the flash-all.bat file and you should be good.

ThePhoneGeek said:
The only thing I've come up with is that starting on 8.1 flashing full wipe for VZN users (or perhaps limited to VZN MVNO's) with unlocked bootloaders is not allowing the device to activate on the network. I suspect VZN hanky panky at work but I am generally a skeptic that way. Once you get it the way you want it you can update each month with the full firmware but remove the -w in the flash-all.bat file and you should be good.
Click to expand...
Click to collapse
My bootloader was still locked when these issues began with the first 8.1 update (which adding an APN fixed), and culminated in 3G only after the 8.1 April update.
I only unlocked it so I could hopefully find a solution, which thankfully was a success.
I'm just as skeptic as you are when it comes to VZN though. They have the best coverage in this area, and that's the only positive thing I have to say about them.

I GIVE UP! Carrier Aggregation/4G+ on LG G8 820N KT (please help me lol)

Hi guys, so I've been testing and enjoying this Korean LG G8 here in Europe and I've been trying to enable LTE-A. I've tried literally everything but I just can not get anything to work when it comes to enabling it. I know for a fact that the x24 modem can support it but the SADEST PART is that LG took out the field test option and also the hidden menu is incomplete ( *#546368#820# is the ONLY option sadly, I think it's because LG is you know... shutting down..., there is no incentive for devs to code for it.)
Anybody, any help would be amazing as in my area 4G+ is really SO much better than the laggy and bad LTE.
So yeah... btw, how do I get rid of the roaming clock on the homescreen, I've tried everything but it still shows the time in Korea.
Oh yeah also, I enabled wi-fi calling in the hidden menu which honestly, it was hard af to find that even as no one seems to care, BUT the sad part is that the ''wi-fi calling'' option in the engineering menu (or what's left from it, I'm on Android 12 and it seems like from 11 to 12 LG has decided to be lazy and destroy any kind of debugging etc. so yeahhhhhhh.)
So in the ''official'' menu it's greyed out but I just enabled it, I am 100% sure you can do this with CA/ LTE-1/4G+ as well, also the way they classify bands is just UGH on android, why are they using classes and not bands.
I am pretty upset rn as I've spent soooooooo many hours now on something that should take 1 minute or less, wtf!

Okay so has anyone actually gotten Carrier Aggregation/4G+/4.5G to work on this phone?
I am really curious, it is becoming more and more important as companies are putting more emphasis on 5G and this phone sadly not being 5G enabled, sometimes my DL speeds are so trash and reception as well. When I pop my sim in my iPad mini 6, it just flies, 200 mbit DL all day, sometimes not even 5mbit DL or no reception at all, all due to CA being blocked by the carrier, yeah the phone is unlocked but basially eliminating the CA option toggle in the engineering menu really is a clear signal this phone was not really intended to be used on the network other than the network you signed up for. Talking about the Korean variant here, which to my knowledge has the most bands active aside from the ATT model I think but that's another story.
So yeah guys, anyone gotten CA to work on their phone? If so please post a screen so I can see a unicorn lol.

Were you able to find a solution to this problem yet? Doesn't seem like anyone else is having this problem because they would have posted it here. I live in the USA and I'm still waiting for the Android 12 update from US Mobile (T-Mobile).

Shawn R said:
Were you able to find a solution to this problem yet? Doesn't seem like anyone else is having this problem because they would have posted it here. I live in the USA and I'm still waiting for the Android 12 update from US Mobile (T-Mobile).
Click to expand...
Click to collapse
I gave up, it is actually VERY hard to make this work, I would update to Android 12 if you don't need any VoLTE, (VoWifi seems to be fine tho for some reaon) no CA / 4G+, none of that...

Hello,
I know you gave up, but I own the LG U+ G820N (thanks its the less bloated one) and I also face bad reception sicne switching carrier/updating t A12, I don't know which one is the cause.
I also can NOT access the *#*#4636#*#* engineering menu. Do you have any clue ?

Xdekker said:
Hi guys, so I've been testing and enjoying this Korean LG G8 here in Europe and I've been trying to enable LTE-A. I've tried literally everything but I just can not get anything to work when it comes to enabling it. I know for a fact that the x24 modem can support it but the SADEST PART is that LG took out the field test option and also the hidden menu is incomplete ( *#546368#820# is the ONLY option sadly, I think it's because LG is you know... shutting down..., there is no incentive for devs to code for it.)
Anybody, any help would be amazing as in my area 4G+ is really SO much better than the laggy and bad LTE.
So yeah... btw, how do I get rid of the roaming clock on the homescreen, I've tried everything but it still shows the time in Korea.
Oh yeah also, I enabled wi-fi calling in the hidden menu which honestly, it was hard af to find that even as no one seems to care, BUT the sad part is that the ''wi-fi calling'' option in the engineering menu (or what's left from it, I'm on Android 12 and it seems like from 11 to 12 LG has decided to be lazy and destroy any kind of debugging etc. so yeahhhhhhh.)
So in the ''official'' menu it's greyed out but I just enabled it, I am 100% sure you can do this with CA/ LTE-1/4G+ as well, also the way they classify bands is just UGH on android, why are they using classes and not bands.
I am pretty upset rn as I've spent soooooooo many hours now on something that should take 1 minute or less, wtf!
Click to expand...
Click to collapse
After weeks of research I actually tried the voWifi toogle + an app enabling the LG Wi-FI calling menu.
With voWIFI set to 0, the LG menu accessed via the app directly switches back to off when toggled.
But, with voWIFI on1 in the *#546368#820# menu, the other menu accessed via the app stays toggled.
I just tried at work with the phone in ariaplane mode and connected to a mobile sharing wifi form my professional phone but it was isntant voicemail....
Did you managed to get voWIFI without changinf the software ? Was the Field test menu available in A11 ?