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Mytouch 4G, will not connect to tmobile network

Ive got an mytouch 4g will not connect to any network, the person I got it from had it rooted to 2.3.3 but did not install the new radio, I installed the GB radio but it still wont connect, any ideas???

astang99 said:
Ive got an mytouch 4g will not connect to any network, the person I got it from had it rooted to 2.3.3 but did not install the new radio, I installed the GB radio but it still wont connect, any ideas???
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Click to collapse
Bad SIM card.

no, tried 3 different sim cards, all the same response, 2 different mytouch 4G's with the same problem, only says limited service

I had a very odd issue similar to this after trying some different roms and then using CWM to restore my RG rom...
In short, I was only able to get service via wifi calling and while in my 'home' area. As soon as i left my home, I would loose all service while others maintained service just fine. If i didn't know any better, it would seem that my phone was locked to a specific tower.
It took a factory reset on the rom before I could get any service back while outside of my home market.

that almost sounds like the same issue, I can get wifi with no problem, just will not let me get service any other way, when I try to select tmobile from network selection it says your sim card will not let you get service

shot in the dark, but... did you check your apn settings???

how do I check apn settings?

astang99 said:
that almost sounds like the same issue, I can get wifi with no problem, just will not let me get service any other way, when I try to select tmobile from network selection it says your sim card will not let you get service
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Click to collapse
I would grab a fresh rom, factory reset the device, flash the rom and reflash the radio. At this point, if you don't do so regularly, MD5 check what you download to ensure its as it should be.
If we go with the 'locked to a tower' assumption, when this happened to me, it appeared 'locked' to the tower it first connected to upon reboot. If you are not in that area now, it prob wouldn't connect.
Also, i have had nothing but problems when I attempted to apply the APN settings listed in forum posts. Just default them, see if it helps..
Settings> Wireless & Network> Mobile Networks> APN Settings > menu button, reset to default. But i think this only affects mms, internet and not the connection to the mobile network itself.
**edit**
I also received an error when attempting to manually connect or search to a mobile network.

factory reset, from cwm?

Yes. Once completed, i went ahead and reflashed the rom while still in CWM.

any other ideas if this doesnt work?

lol, brick it and call tmobile.. "its stuck in a bootloop"

another thought is to call tmobile and ask them essentially if they can reset your device in the towers. I worked for them (voicestream) like 12 years ago, the lingo has most likely changed but there maybe something in the system that is causing the problem..
I was able to see the problem go away once i factory reset, so I didn't bother. Just don't mention anything that could be noted as 'warranty voided'..
Typically, when I call, i give them just enough information to get them to do exactly what I want. They shouldn't care that you run a custom rom and they don't need to know.. just the fact that you cannot connect to the network should be information enough.

T-Mobile US APN Settings: (By Elvis_Freshly)
Click on Menu
Click on Settings
Click on Wireless & networks
Click on Mobile networks
Click on Access Point Network
You will see a tab with Some provider settings,if rooted device with custom ROM.
Ignore it for now.
Click on Menu
Select New APN from popup menu.
You will see a window come up with a bunch of tabs.
Clcik on name and Name the connection as T-Mobile USA
Click on APN and enter epc.tmobile.com
Click on Proxy and enter 216.155.165.50
Click on Port and enter 8080
Username will show as (leave it alone do not touch)
Password will show as (leave it alone do not touch)
Server will show as (leave it alone do not touch)
Click on MMSC and type in http://mms.msg.eng.t-mobile.com/mms/wapenc
Click on MMS proxy and type 216.155.165.50
Click on MMS port and type 8080
MMS Protocol should be WAP 2.0 if not then click on tab and select WAP 2.0
MCC should be set to 310 if not click on tab and set it to 310
MNC should be set to 260 if not clcik on it and set to 260
Click on Authentication type and select None
Click on APN type and enter default,supl,mms
And then Click on menu and save it.
Now you go back and you will see a T-Mobile US Apn that we just created.
Select that and a red circle should appear next to the Tab.
Now press back twice to go to Wireless & Networks screen
Uncheck Mobile network tab and wait for a few secs;
Check the Mobile networks tab again;
Now reset your phone and enjoy T-Mobile data, MMS and SMS
Click to expand...
Click to collapse
Sorry about the copy and paste but this seemed to be the one exception to the case, I would take a little time to look threw some of the rom settings. If this doesn't work send the phone back, it seems to me that's the last thing you want to do but if this doesn't work then you may have no choice but to and why waste more time.

i doubt this issue has anything to do with the apn settings as those only affect T-Mobile data, MMS and SMS. Even if they were completely wrong, the phone would still make a connection to the network for voice services.

When I got my mt4g with new simcard, I have to call tmo to reigster it.
Or perhaps the phone is simcard locked.
Sent from my HTC Glacier using Tapatalk

inst1029 said:
When I got my mt4g with new simcard, I have to call tmo to reigster it.
Or perhaps the phone is simcard locked.
Sent from my HTC Glacier using Tapatalk
Click to expand...
Click to collapse
That's true, I had to do the same, I had a Blackberry prior to the MT4G and had to call and give them my IMEI and other info in order for them to activate my service, I got mine out right not through T-Mobile. I had to agree to the terms over the phone with CSR before I could do anything other than make calls.
Still I would think if he got the phone through T-Mobile and had the SIM sent with it as security goes you would still have to call in to verify you got the phone and call in the IMEI to be activated for that account.

Orical said:
That's true, I had to do the same, I had a Blackberry prior to the MT4G and had to call and give them my IMEI and other info in order for them to activate my service, I got mine out right not through T-Mobile. I had to agree to the terms over the phone with CSR before I could do anything other than make calls.
Still I would think if he got the phone through T-Mobile and had the SIM sent with it as security goes you would still have to call in to verify you got the phone and call in the IMEI to be activated for that account.
Click to expand...
Click to collapse
See, this is the difference. You were able to connect to tmobiles network. OP is unable to get that far. There is no service, and even manually attempting to select a network resulted in an error.
Sent from my HTC Glacier using XDA App

The phone could be imei blockd. T-Mobile will do that if its lost or stolen. Or if the person who got it said he never got the package and they sent a new one. I kno this cuz my brother ripped of T-Mobile by sayin he didn't get a replacement and they blocked the one he said he didn't get. Try unlocking it and using a att sim
Sent from my HTC Glacier using XDA App

urmothersluvr said:
The phone could be imei blockd. T-Mobile will do that if its lost or stolen. Or if the person who got it said he never got the package and they sent a new one. I kno this cuz my brother ripped of T-Mobile by sayin he didn't get a replacement and they blocked the one he said he didn't get. Try unlocking it and using a att sim
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Boned..
Sent from my HTC Glacier using XDA App

Can someone explain how APN setting configuration actually works?

So, let me explain the problem I had as context for my question.
I have a HTC M8 from Verizon that is totally unlocked (bootloader, SIM, etc) and rooted. I am running a recent version of LineageOS
My wife has a Samsung Galaxy S5 from Verizon that is rooted. She is running the latest available stock firmware from Verizon (with some bloat removed).
On the Verizon network with our Verizon SIM cards neither of us could edit APN settings.
We have been off contract for a while and just switched to Total Wireless.
I had 0 issues with my phone as the proper APN for Total Wireless was obviously loaded properly into my phone when I put in their SIM.
My wife OTOH was not able to get any internet access and upon examining her settings I noticed she lacked the newer TRACFONE.VZWENTP APN that my phone had.
I was not however able to edit her APN settings.
From everything I was finding online it seemed that the phone was clearly unlocked since the TW SIM worked to make/receive phone calls. Also it appeared people were stating that the presence of an APN is a function of the SIM and that if the APN wasn't there or I couldn't add it, then the SIM was the problem.
In the end I was able to install build.prop editor and make the following changes:
Code:
ril.sales_code=LOL
ro.csc.sales_code=LOL
This allowed me to add an APN. I copied the settings from my HTC *exactly* (triple checked) and still no Internet.
Finally I chose the option "Reset to default" and it appeared that it deleted the APN I added and added another TRACFONE.VZWENTP that was just slightly different then what I had on my phone (it set the "Bearer" option to 'LTE' instead of 'unspecified'). Everything then worked.
This experience leaves me to believe the following:
1) The ability to edit the APNs is a function of the ROM, not the SIM, since I was able to edit with build.prop and then make the change.
If this is the case however, why would a custom ROM like LineageOS not have this unlocked by default???
2) The APN is actually stored in the SIM card.
This must be the case because when I "Reset to default" there was nowhere that it could have gotten these changed settings from other than the SIM card as it was unable to even reach out to the internet at the time (wifi was off).
This was all just such a hassle and there are hundreds of posts out there about people in similar situation who state they can't access their APN settings.
If my wife's phone wasn't rooted I would not have been able to use build.prop editor to make the APN editable and then I would never have been able to get internet. What could I have done in that situation?
Again - my issue was resolved, but I am trying to understand specifically how these things are controlled and unlocked - especially for someone who doesn't have root access to their phone.

Oh - I just wanted to add that I worked with Total Wireless over chat for close to an hour while I was researching this on my own.
I helped them out from the beginning by telling them that I thought the APN was the issue and the block head kept telling me that I needed to edit my APN settings.
When I continued to tell him they were greyed out and I couldn't do it he just kept repeating as if they have never experienced this before and there *must* be a way for me to edit my APN settings.
I haven't had a build on my HTC or my wife's G5 that I can remember where I have ever been able to edit them manually, so I would expect that grayed out APN settings are pretty standard. Ofc I may have had a total moron over chat (likely), but he seemed to be consulting either their internal KB or another associate - so the fact that it was so difficult for them to figure this out (in fact they never did, I did) and they never would likely have if my phone wasn't rooted is very perplexing to me as to the root problem.

Locked APN

Is there anyway to make the APN editable without rooting as I use a couple of banking apps that I can't do without ?
It was possible with my OnePlus 5 with Android 9.

What happens when you try to add an APN?
Give this thread from last year a look (another model, naturally, but, it may apply).
https://forums.oneplus.com/threads/help-cant-add-apn-settings.981063/

Can't edit the auto APN as it's greyed out.
Thank you, yes that helped, I can now create a new APN and save it but I can't select it or delete the automatic APN.

bingobill said:
Can't edit the auto APN as it's greyed out.
Thank you, yes that helped, I can now create a new APN and save it but I can't select it or delete the automatic APN.
Click to expand...
Click to collapse
I slightly altered my T-Mobile APN for a 2nd APN (changed the APN Protocol & APN Roaming Protocol to IPv4/IPv6).
Ran a speed test & it works. Perhaps it's not enough of a change to the original APN, but, I was able to select it.
I did find that once it's saved, to select another APN, you have to tap directly on the corresponding dot for the selected APN to change. If you just tap on it w/o tapping the dot, it won't select & just stay on whatever you're currently using.

KOLIOSIS said:
I slightly altered my T-Mobile APN for a 2nd APN (changed the APN Protocol & APN Roaming Protocol to IPv4/IPv6).
Ran a speed test & it works. Perhaps it's not enough of a change to the original APN, but, I was able to select it.
I did find that once it's saved, to select another APN, you have to tap directly on the corresponding dot for the selected APN to change. If you just tap on it w/o tapping the dot, it won't select & just stay on whatever you're currently using.
Click to expand...
Click to collapse
Well, I managed to create a new APN by temporarily using a different carrier sim but no dot so unable to select it

bingobill said:
Well, I managed to create a new APN by temporarily using a different carrier sim but no dot so unable to select it
Click to expand...
Click to collapse
Do you have a carrier-locked version?
If so, I'm guessing that may be the issue, even though mine is a T-Mobile US carrier locked version. (still SIM Locked) & I can get a 2nd APN to select.
I don't have another carrier SIM Card to see if I'd have the same issue as you. Perhaps someone else will be able to help w/a 2nd SIM/APN.

No it's an unlocked OnePlus 8 bought from Amazon.
I believe though that carriers are requesting locked APNs or pushing them to the phone and is a problem since Android 10.
Another sim I tried from a different carrier is also locked.
Anyway your suggestions are appreciated.

bingobill said:
No it's an unlocked OnePlus 8 bought from Amazon.
I believe though that carriers are requesting locked APNs or pushing them to the phone and is a problem since Android 10.
Another sim I tried from a different carrier is also locked.
Anyway your suggestions are appreciated.
Click to expand...
Click to collapse
Yeah, troubleshooting is difficult when neither the mfg or carrier(s) want to take ownership of the issue.
Since the phone is SIM Unlocked, I'd start with the carrier & see if they have to whitelist your device (by IMEI) or whatever means they require for BYOD. I'd grab the SIM Card serial number as well before you give 'em a call.

APN storage location on OnePlus 7 Pro?

Hi all,
I have a SIM card that OnePlus is forcing a Verizon (US) APN for - it is set as default and grayed out, so there is no way for me to select a second one even if I add it, it always defaults back to the one already built-in to the APN config file. I have looked in multiple places, in the /system/etc/apns-conf.xml (changes here don't seem to have any effect). HOW can I finally get rid of this default APN?!

Go into network settings, click on the sim card, and you'll see Access Point names. Go in and add a new one with the correct settings for your carrier, and it will then become default.
Or, in settings search for "Access" and it will take you to what I described above.
Sent from my OnePlus7Pro using XDA Labs

I have the same issue, on Pageplus. Same thing happened with my essential, but was eventually able to overcome it. It would be nice to simply "add a new one", but of course, the option to do that is absent as well... There has to be a provision to do this.

Valicore said:
Hi all,
I have a SIM card that OnePlus is forcing a Verizon (US) APN for - it is set as default and grayed out, so there is no way for me to select a second one even if I add it, it always defaults back to the one already built-in to the APN config file. I have looked in multiple places, in the /system/etc/apns-conf.xml (changes here don't seem to have any effect). HOW can I finally get rid of this default APN?!
Click to expand...
Click to collapse
I was able to use a Simple Mobile Sim card (T Mobile) and boot the phone to add an APN, but when you save it, you won't see it until you put your old one back in. Funny thing, sad really, I now have data, can send Texts, but not receive them, go figure. Very Frustrating...
Let me know if you have any luck...

Sonim XP8 w/Android 10 apn issues/root

So for the long post but lots of information up front. I obtained an unlocked Verizon Sonim XP8 with Android 10 installed. It works with a Verizon sim as well as a FirstNet sim. I am trying to use a Visible sim in it. I've used this sim in an iPhone, iPad and Unihertz Atom without any issues as the latter 2 let me add the apn settings. The software on the XP8 is obviously from Verizon who locks the apn settings even though the phone is unlocked. The sim lets me select the Visible 4G network but puts in Verizon's apn settings instead of Visible and won't let me change them. I have tried various programs which fail to change the apn settings. One program let me add an apn but refused to save it saying my "user privileges" would not let me add an apn with the "dun" setting. I tried some one-click root programs (even though I didn't want to) which failed to root the device. There is no available dump for Android 10 to pull a boot.img from to modify. TWRP website shows no Sonim compatiblity and even when downloaded won't run on the phone so I cannot get the boot.img myself. I looked through this thread https://forum.xda-developers.com/t/sonim-xp8-root.3851187/ Being a newbie, I think I need to use adb in order to pull the boot.img but am unsure where it is stored and where I am supposed to store the xml files that I create. If I can understand that process better and get the boot.img to root with Magisk, will this even solve my permissions problem with being able to add the apn settings? Is there an alternative or is the only way to solve this to flash the phone back to Android 8 with the stock images off this website to get rid of the Verizon problems? I'd really like to stay with Android 10 if at all possible. Any help would be greatly appreciated.
-Josh

Where did you get one with android 10? I have both the Verizon and ATT XP8s stuck on Android 8.1. I have had tickets open with Verizon for 2 months and they swear it is fully up to date with 8.1. It may actually be my APN configuration that is preventing the update.
I was able to get Visible working on my Verizon version by modifying just the apn name in the existing apn. I can't add new APNs on either ATT or VZW XP8s. Perhaps if you follow the other XP8 root thread you will see there is a method for rooting which gives you access to manually add APNs. I'm not sure if it works on Verizon model though...does anybody successfully have XP8 Verizon with Android 10 and root?

baROMba said:
Where did you get one with android 10? I have both the Verizon and ATT XP8s stuck on Android 8.1. I have had tickets open with Verizon for 2 months and they swear it is fully up to date with 8.1. It may actually be my APN configuration that is preventing the update.
I was able to get Visible working on my Verizon version by modifying just the apn name in the existing apn. I can't add new APNs on either ATT or VZW XP8s. Perhaps if you follow the other XP8 root thread you will see there is a method for rooting which gives you access to manually add APNs. I'm not sure if it works on Verizon model though...does anybody successfully have XP8 Verizon with Android 10 and root?
Click to expand...
Click to collapse
I used a friend's Verizon sim card in it and went to System->System updates->Check for new system updates and it upgraded itself to Android 10. What did you modify the apn name to in order to get it to work? I have 4 apn settings I was given for Visible. The apn settings in the phone however leave little room for modification.

joshnet3 said:
I used a friend's Verizon sim card in it and went to System->System updates->Check for new system updates and it upgraded itself to Android 10. What did you modify the apn name to in order to get it to work? I have 4 apn settings I was given for Visible. The apn settings in the phone however leave little room for modification.
Click to expand...
Click to collapse
Using my Visible SIM on my Verizon device, I have only 1 APN instead of 4. By changing just the APN NAME, (which is all I can change), I am able to get visible data working. No MMS/SMS/ADMIN APNs but full speed data.
My primary sim for this is a Verizon prepaid. Was your friends sim a verizon post-paid account? Also, do you have the appropriate 4 verizon APNs on your phone? Maybe the admin APN is required for the update. Any chance we could swap screenshots of our APN configurations?

baROMba said:
Using my Visible SIM on my Verizon device, I have only 1 APN instead of 4. By changing just the APN NAME, (which is all I can change), I am able to get visible data working. No MMS/SMS/ADMIN APNs but full speed data.
My primary sim for this is a Verizon prepaid. Was your friends sim a verizon post-paid account? Also, do you have the appropriate 4 verizon APNs on your phone? Maybe the admin APN is required for the update. Any chance we could swap screenshots of our APN configurations?
Click to expand...
Click to collapse
The sim was a post-paid account. I don't have it in the phone right now. The only APN that shows up when I put the Visible sim in is named "Verizon" with an APN of "VZWINTERNET" MCC "311" MNC "480" APN type "default, dun,supl" APN protocol "IPv4/IPv6" APN roaming protocol "IPv4" I tried the root method in the thread I listed but when I type the command for the QSaharaServer it tells me the application is not executable even though I followed all the directions so I cannot even get the boot.img downloaded to begin the rooting process.

joshnet3 said:
The sim was a post-paid account. I don't have it in the phone right now. The only APN that shows up when I put the Visible sim in is named "Verizon" with an APN of "VZWINTERNET" MCC "311" MNC "480" APN type "default, dun,supl" APN protocol "IPv4/IPv6" APN roaming protocol "IPv4" I tried the root method in the thread I listed but when I type the command for the QSaharaServer it tells me the application is not executable even though I followed all the directions so I cannot even get the boot.img downloaded to begin the rooting process.
Click to expand...
Click to collapse
Just change APN name from VZWINTERNET to VSBLINTERNET.

unfortunately that didn't work for me. not sure if that's an android 10 difference or something else... i do notice that when the phone starts i get a 4GLTE symbol which promptly goes away.

joshnet3 said:
unfortunately that didn't work for me. not sure if that's an android 10 difference or something else... i do notice that when the phone starts i get a 4GLTE symbol which promptly goes away.
Click to expand...
Click to collapse
Did the APN name save? If so try the following:
Dial *#*#4636#*#*
Select Phone Information
Set Preferred Network type to "WCDMA Only"
Reboot and let it sit for 5 minutes without touching it to update it's settings.
It should automatically change but if not, Do it again and make sure Preferred Network Type is "LTE/CDMA/UMTS auto (prl)"
This got my VISIBLE sim on the right network along with the APN change.

a lot of the secret codes have gone away with the android 10 update hence the need to root. i am unable to change the network type through the typical menu and the dailing code does not bring anything up, just returns to a blank screen. The network is stuck on "LTE/UMTS/GSM" no matter what I do.

Were you able to root with android 10? I heard it hasnt been done as of yet due to the new android 10 features

joshnet3 said:
So for the long post but lots of information up front. I obtained an unlocked Verizon Sonim XP8 with Android 10 installed. It works with a Verizon sim as well as a FirstNet sim. I am trying to use a Visible sim in it. I've used this sim in an iPhone, iPad and Unihertz Atom without any issues as the latter 2 let me add the apn settings. The software on the XP8 is obviously from Verizon who locks the apn settings even though the phone is unlocked. The sim lets me select the Visible 4G network but puts in Verizon's apn settings instead of Visible and won't let me change them. I have tried various programs which fail to change the apn settings. One program let me add an apn but refused to save it saying my "user privileges" would not let me add an apn with the "dun" setting. I tried some one-click root programs (even though I didn't want to) which failed to root the device. There is no available dump for Android 10 to pull a boot.img from to modify. TWRP website shows no Sonim compatiblity and even when downloaded won't run on the phone so I cannot get the boot.img myself. I looked through this thread https://forum.xda-developers.com/t/sonim-xp8-root.3851187/ Being a newbie, I think I need to use adb in order to pull the boot.img but am unsure where it is stored and where I am supposed to store the xml files that I create. If I can understand that process better and get the boot.img to root with Magisk, will this even solve my permissions problem with being able to add the apn settings? Is there an alternative or is the only way to solve this to flash the phone back to Android 8 with the stock images off this website to get rid of the Verizon problems? I'd really like to stay with Android 10 if at all possible. Any help would be greatly appreciated.
-Josh
Click to expand...
Click to collapse
Hello, can you backup rom android 10 to zip file, i can not update my xp8 OTA updae normally.
Thanks

So I had to get a ATT sim without service from ebay, stuck it in and instantly had a update i could do which brought me to the last update before android 10. I then had to do a complete reset before it would even say it had another update. That got me to android 10. then doing the time/date trick got me to the current security patch level.
Unfortunately it still blocks the second sim slot.

I appreciate the many work-arounds here and will look at getting a SIM from somewhere if needed, but is there not a more simple download / extract path? The unlocked XP8 I recently got is on 8.1.0 and would really like to get a tad more recent if possible. Many thanks in advance!
P.S. Got unlimited connectivity and a number from Mint, so at least a very functional device... have no need, so haven't tried 2nd SIM slot.