S9+ US Unlocked, FULL Network Reset? - Samsung Galaxy S9+ Questions & Answers

So, when I first put my SIM in, my phone restarted and I got some texts informing me of settings in a configuration menu to install, and when I did almost everything worked perfectly fine. Upon one of the things acting strange, i reset my networking settings and input the specified APN settings for my carrier (Ting), but then MMS wont work and when I get calls it goes straight to voicemail. By default under "Access Points", it has a "Ting Data" option which can't be changed, but has incorrect APN settings according to the ting website, so I make a second one and select it instead.
Anyhow, I want the original configuration install options to reappear like when I first installed my sim but I cannot find anything about them or find any configuration menu. They did add new APN settings in there when I did it and MMS did work at the time and I did get calls. I've already removed my sim, and placed it back in with no luck, restarted phone, soft reset phone, reset Access Points to default, and reset network settings via the Reset menu, and no luck.
Is there a dial code I can enter to find this APN install menu? or get it to do a full network reset as if I put my SIM in for the first time WITHOUT a full factory reset.
Edit: Got it working somewhat. It says I have LTE connection, but only wants to work on and off. Any ideas of how to fix this?

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APNs resetting after reboot

i am running miui 5.4. Everything is working as should, with the exception of MMS. After days of research and forum crawling like a crackhead, i have concluded that the apn settings is the problem, if i create a new apn and input the settings for us cellular (my carrier) then i am able to send and recieve MMS. It is only when i reboot my phone that it breaks again, and i am forced to re-enter the settings to send MMS. I am just curious if anyone has had a similar problem, and if there is a way to fix it so i dont have to enter these settings with every reboot
thanks in advance
try to flash nv white rabbit, all settings needed for qpst.
you can also change other settings under ##data#, ##DEBUG#.
mms spc was 500667 on my device. not the standard 000000

No data connection, How do I fix APN settings?

I recently Tried to use my ATT SIM with my Dinc4G, I had to add an APN but it worked 100%, Voice and Data.
When I went back to my Verizon SIM, I found I had no data...
It hasn't come back at all for a couple days now, when I reset t o defualt APN I see the Verizon APN and even got screenshots of the settings
Problem is it changes back to some APN with wrong settings almost immediately, and I cannot change that APN.
Adding New a New APN causes that APN to disappear, and the name of the locked one to change. The information is still wrong, can't be changed and I have no data...
At a loss here, can't figure out whats happening. I even put my SIM in my Galaxy Nexus... and THAT didn't have a data connection either....
Are you rooted?
I've had the same problem after testing out an AT&T SIM, and there seems to be something wrong with the way Dinc4 tries to reset APN data to defaults.
There might be a better/easier/more proper way to fix it, but the only one I found was to edit APN database directly using a SQLite editor. Obviously, needs root access for that.
If you are, in /data/data/com.android.providers.telephony/databases check telephony.db and cdmaapn.db files.
Insertnamehere12 said:
I recently Tried to use my ATT SIM with my Dinc4G, I had to add an APN but it worked 100%, Voice and Data.
When I went back to my Verizon SIM, I found I had no data... Most likely (or at least for me), APN's #13 and/or 25 might have wrong settings.
It hasn't come back at all for a couple days now, when I reset t o defualt APN I see the Verizon APN and even got screenshots of the settings
Problem is it changes back to some APN with wrong settings almost immediately, and I cannot change that APN.
Adding New a New APN causes that APN to disappear, and the name of the locked one to change. The information is still wrong, can't be changed and I have no data...
At a loss here, can't figure out whats happening. I even put my SIM in my Galaxy Nexus... and THAT didn't have a data connection either....
Click to expand...
Click to collapse

Multiple APNs?

I use my DNA primarily on VZW but recently added a TMobile SIM card to my international travel kit. I found out the DNA is SIM unlocked so I jammed it in, set the APN settings and all was dandy. Phone worked very well.
Problem is, NOW I go back to the VZW SIM and the Verizon APN settings will not stick. I input the settings and save but then it retains the TMo settings.
I have signal bar but it won't get to internet or send/receive MMS. no 4G icon in the bar.
Anyone have experience with this?
Is there an app that allows me to easily switch between multiple APNs? It appears only one is saved at a time.
Does anyone else use multiple SIMs on any android devices and have suggestions on how to maintain this?
Stock Rooted with S-Off.
Steps taken:
Reboot, Clear Dalvic, Clear Cache
in APN click on 'Reset to default', the VZWINTERNET shows until I exit the screen, when I return it's TMobile settings
BTW: I have already tried suggestions here and it never saves. It will not add another APN. As soon as I go out and back in the new APN is gone.
http://forum.xda-developers.com/showthread.php?t=2026389

Mobile data not working and Access Point Name settings are not available

I have no mobile data, not even the little up and down arrows or letters next to the sims signal bars show up.
I have tried all the troubleshooting and different settings for prefered network type, airplane mode is off, mobile data is on with no limits, no power saving modes are on. Phone is dual sim so I have tried on both sims and tried disabling the other sim and changing the sim slots, both sims are loaded with data credit that works in other android devices. Wifi works fine. Factory reset does not help.
There is only one trouble shooting thing I can't try. When I select settings > more > mobile networks > access point names it says
"Access Point Name settings are not available for this user"
Perhaps if I could set APN I could get mobile data. How can I do that or how can I try to get mobile data to work?
Phone is E2363 with build 26.1.B.2.102 Thanks if you can help
Try clicking on the plus sign and add in the operator name (mine is DST in my country) and followed with a 'dot' then internet in the Mobile network settings.
Example for me: DST.internet
You may also want to try with .WAP
Example for me again: DST.WAP
I left mine like that and I seemed to have gotten the Mobile data to work. But my case was different, I have the up and down arrows when Mobile data is turned on, just couldn't access the Web.
If adding another APN fails, flash ftf. Seems like the last resort.
There is no plus sign, just the text
"Access Point Name settings are not available for this user"
bitedge said:
There is no plus sign, just the text
"Access Point Name settings are not available for this user"
Click to expand...
Click to collapse
Oww.. Sorry.
I guess you can try reflashing the ROM? :silly:
From what I have google searched, it has something to do with com.android.providers.telephony and we can't do anything about that without root so reflashing is the only option.
EDIT: Have you tried going around with the Service Providers stuff and rebooting? Idk might as well give that a try
downloading automatic settings from Settings -> More -> Internet settings fixed it, thanks yall.

HTC One A9 No data connection with O2 sim

This is really doing my head in as I'm not a techy type of guy :crying:
I have HTC One A9 and I have data connection issues that I can't seem to get around. I just ported my old number to a o2 sim and although I can make call I can't get the data connection started. It seems as I insert the sim, it doesn't populate with APN setting. I've tried manual settings and doing network reset. Nothing seems to work
The screen keeps showing "access point names are not available for this user".
I've done a factory reset and that didn't work. When I used other Sims the APN setting populate right away, so it seems my phone is having trouble setting up APN with this particular sim ??

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