Database Users

No APN specified on device.

Anybody run into this error when sending or receiving mms? I'm on cm11 and this was never an issue until today.

Yes just started today for me as well. Seemed to have started with the latest nightly for my Verizon Samsung Galaxy Note 2. I tried resetting APN, no dice. Tried using Hangouts instead of stock, no change. I also tried flashing the nightly from 3/3 & was stuck in boot loop....I'm out of ideas, hoping the next nightly fixes this as I find it EXTREMELY annoying!

Try the program elixir2 from play store.
use titanium backup or similar to move it to a "system app" --- if you don't move to system it cannot write the apn settings!!
then when you run elixir2,,, tap the top left button labled "information",,, then look for and tap "Telephony",,, then tap "APN settings"
edit or add proper setting and remember to then tap the '3 dots' and 'Save' your work,,,
mms function should now work if you have the proper /etc/apn-conf.xml file
... if you need it just grab one from a previously working mms ROM and overwrite the 'apn-conf.xml' file and set permissions

Thank you for your quick reply, hhp_211. I tried copying the etc/apns-config.xml from the 3/3 nightly (which had worked fine), changed permissions & rebooted....still that pesky 'No APN specified on device' error. I did figure out how to make the error disappear, I switched to Hangouts & did a force stop on the Messaging app. A temporary fix until I figure something else out...

shallmann said:
Thank you for your quick reply, hhp_211. I tried copying the etc/apns-config.xml from the 3/3 nightly (which had worked fine), changed permissions & rebooted....still that pesky 'No APN specified on device' error. I did figure out how to make the error disappear, I switched to Hangouts & did a force stop on the Messaging app. A temporary fix until I figure something else out...
Click to expand...
Click to collapse
Cool, the .xml would only be half off the fix though... You need to set the apn
If you have the voice dialer app you can also use that and speak "open APN's" to get to the settings menu

hhp_211 said:
Cool, the .xml would only be half off the fix though... You need to set the apn
If you have the voice dialer app you can also use that and speak "open APN's" to get to the settings menu
Click to expand...
Click to collapse
I've tried all these things to no success, but thank you. I just switched over to PAC-man and hae the same results. Then went back to stock touchwiz 4.3 and mms works fine. I figured maybe if I restore touchwiz and then restore cm11 over it then mms might work but it still doesn't. I guess this is a kitkat issue only. Seems every kitkat rom i've tried have the same issue(s).

I tried an APN setting I found on the internet, it didn't work. Not sure what it should be....at any rate using Hangouts isn't too bad. Thanks for the suggestions hhp!

Found a fix for Verizon here: http://forum.xda-developers.com/showthread.php?t=2053705&page=3
Essentially, in the MMSC spot in APN settings you put:
http://mms.vtext.com/servlets/mms?X-VZW-MDN=1234567890
REPLACE 1234567890 with the 10 Digit Phone # of the Device.
Did this by opening Elixir2 (thanks for turning me on to this hhp!), go to Information, Telephony, APN Settings. LTE - Verizon Internet is already selected. Tap on it, and change the MMSC there and SAVE.
Hope this helps someone else! THANK YOU 4MUSKRAT & hhp!

APN question on Verizon LG V20. Cannot edit APN for total wireless but can for AT&T?

APN question on Verizon LG V20. Cannot edit APN for total wireless but can for AT&T?
I have an unlocked Verizon V20 and I was using AT&T and was able to edit or add new APNs. However, I switched to Total Wireless which is a Verizon MVNO and while the phone works, I cannot edit the APN for TW. I am sure I was able to do this on my Nexus 6 but I am confused I'm not able to do it on the unlocked V20.
Any ideas?

No one? Anyone?

HD2FORNICK said:
No one? Anyone?
Click to expand...
Click to collapse
Literally just went through this with my VS995 V20 to add the boom wireless APN. Here's what i had to do:
1. Need to be rooted. I used dirty santa root (make sure your device is compatible), i also needed to downgrade to the 12A firmware before rooting. Backup anything important before you root
2. Once rooted, install Shortcut Master from the Play store
3. Open Shortcut master, (give root permissions when asked) and search for "APN" (without quotes)
4. In the list of results, look for the first "Verizon Hidden Menu" and launch it.
5. You will now have access to "Access Point Names" and clicking the 3 dots will let you add a APN.
6. Add the APN settings for your carrier, save and select the new apn, and reboot.
Hope that helps you out, really sucks how verizon is locking phones out of this menu.

minimaru how do i downgrade firmware? and how do i do the root? i have a verizon lg v20 that is the vs99517a, i have it on straight talk and can call and text(no mms) but can not use data at all unless on wifi and there is no option to add a new APN the only option says restore to default settings.

minimaru said:
Literally just went through this with my VS995 V20 to add the boom wireless APN. Here's what i had to do:
1. Need to be rooted. I used dirty santa root (make sure your device is compatible), i also needed to downgrade to the 12A firmware before rooting. Backup anything important before you root
2. Once rooted, install Shortcut Master from the Play store
3. Open Shortcut master, (give root permissions when asked) and search for "APN" (without quotes)
4. In the list of results, look for the first "Verizon Hidden Menu" and launch it.
5. You will now have access to "Access Point Names" and clicking the 3 dots will let you add a APN.
6. Add the APN settings for your carrier, save and select the new apn, and reboot.
Hope that helps you out, really sucks how verizon is locking phones out of this menu.
Click to expand...
Click to collapse
YOU DA MAN Thank you.

LTE On Oreo After Root?

Ok so I use @jrkruse guide https://forum.xda-developers.com/verizon-s7-edge/how-to/root-s7-s7edge-oreo-nougat-t3819616 to root my SM-G935P on Oreo and it works great but I cannot get LTE working, Now when I rooted my phone on Android N with @godpowerrr tutorial https://forum.xda-developers.com/sprint-s7-edge/how-to/sm-g935p-spr-root-nougat-7-0-data-t3568780 and do the build.prop tweaks I get LTE working fine. I have tried to add the same build.prop lines to my rooted oreo phone with no success would anyone happen to know where to find the settings in the build.prop from android N in android oreo?

LTE on Oreo
DirtyPISTOLA said:
Ok so I use @jrkruse guide https://forum.xda-developers.com/verizon-s7-edge/how-to/root-s7-s7edge-oreo-nougat-t3819616 to root my SM-G935P on Oreo and it works great but I cannot get LTE working, Now when I rooted my phone on Android N with @godpowerrr tutorial https://forum.xda-developers.com/sprint-s7-edge/how-to/sm-g935p-spr-root-nougat-7-0-data-t3568780 and do the build.prop tweaks I get LTE working fine. I have tried to add the same build.prop lines to my rooted oreo phone with no success would anyone happen to know where to find the settings in the build.prop from android N in android oreo?
Click to expand...
Click to collapse
Is your phone network unlocked?

[email protected] said:
Is your phone network unlocked?
Click to expand...
Click to collapse
No its locked for sprint network.

LTE on Oreo
Try this. Go into your phone dialer and enter this secret code:
##3282# (puts you in programming mode)
Click edit.
For the MSL code, put "000000" and press OK.
On the main screen, go to MORE.
Then click HDR/1x Selection.
On this screen, select Global then press OK.
The phone will restart and should enable LTE.
Hope this helps.

[email protected] said:
Try this. Go into your phone dialer and enter this secret code:
##3282# (puts you in programming mode)
Click edit.
For the MSL code, put "000000" and press OK.
On the main screen, go to MORE.
Then click HDR/1x Selection.
On this screen, select Global then press OK.
The phone will restart and should enable LTE.
Hope this helps.
Click to expand...
Click to collapse
If Global doesn't work, go thru the process again and try the next 2 settings.

Unfortunately I have tried that and it does not work for me.

@DirtyPISTOLA This is a step you might of missed and has been throughout my thread. (Apn settings need to be applied after eng boot is registered) I implemented these settings through a .bat file in device system/etc folder, but doesn't work for all. So if you apply the eng boot through ODIN...and upon reset... Edit APN settings through mobile networks, being;
Name: APN2 LTE Internet
APN: n.ispsn
MMSC:http://mms.sprintpcs.com
Multimedia message proxy:68.28.31.7
Multimedia message port:80
MCC: 310
MNC: 120
APN type:default,supl,mms,dun,fota
APN Protocol:IPv4/IPv6
APN roaming protocol:IPv4/IPv6
Bearer:LTE
You should be able to run SuperSU .bat file and hopefully that'll fix it. If not it's a firmware issue.
I'm not sure if this works for oreo because I no longer have this device, but these are settings needed for LTE. Like I said idk if Nougat's LTE is different from Oreo's LTE.
Build.prop entries:
ro.characterisitics=Sprint
ro.telephony.default_network=10
ro.cdma.default_numeric=310120
ro.cdma.default_alpha=Sprint
ro.cdma.home.operator.alpha=Sprint
If this doesn't work try SM-G935U firmware with exact settings and steps, but change MNC: to 000.

godpowerrr said:
@DirtyPISTOLA This is a step you might of missed and has been throught my thread. (Apn settings need to be applied after eng boot is registered) I implemented these settings through a .bat file in device system/etc folder, but doesn't work for all. So if you apply the eng boot through ODIN...and upon reset... Edit APN settings through mobile networks(APN), being;
Name: APN2 LTE Internet
APN: n.ispsn
MMSC:http://mms.sprintpcs.com
Multimedia message proxy:68.28.31.7
Multimedia message port:80
MCC: 310
MNC: 120
APN type:default,supl,mms,dun,fota
APN Protocol:IPv4/IPv6
APN roaming protocol:IPv4/IPv6
Bearer:LTE
You should be able to run SuperSU .bat file and hopefully that'll fix it. If not it's a firmware issue.
I'm not sure if this works for oreo because I no longer have this device, but these are settings needed for LTE. Like I said idk if Nougat's LTE is different from Oreo's LTE.
Build.prop entries:
ro.characterisitics=Sprint
ro.telephony.default_network=10
ro.cdma.default_numeric=310120
ro.cdma.default_alpha=Sprint
ro.cdma.home.operator.alpha=Sprint
If this doesn't work try SM-G935U firmware with exact settings and steps, but change MNC: to 000.
Click to expand...
Click to collapse
Awesome thanks for the reply, I just upgraded to a new update that wont let me downgrade because of security policy updates as soon as SamMobile posts the firmware so I can restore if something goes wrong I'll give this a try. Thanks again.

Glad I finally found this thread, which firmware should I be on if I want to root this thing? Thinking of flashing Boot Loader 6 though again not sure.

Hey hey, I need to dig up this ghost here, cause I rooted a Sprint S7 Edge and put a verizon SIM in it, I don't have an active sprint SIM so I can't test it out, but the verizon SIM isn't getting any LTE, it just shows roaming, and no MMS messages can be downloaded. I may or may not have messed with some settings.
So, I can't edit the APN settings it's locked out. How can I either a. unlock the APN settings, or b. get it to recognize LTE networks without doing that. I've tried so many different things I've found on the forums, like nova launcher menu and going into the IOTHidden stuff to get into LTEfunctionality and that's not even there on the phone.
We're running OREO, but I just don't know what the deal is. Any ideas?

ChrisAGilbert said:
Hey hey, I need to dig up this ghost here, cause I rooted a Sprint S7 Edge and put a verizon SIM in it, I don't have an active sprint SIM so I can't test it out, but the verizon SIM isn't getting any LTE, it just shows roaming, and no MMS messages can be downloaded. I may or may not have messed with some settings.
So, I can't edit the APN settings it's locked out. How can I either a. unlock the APN settings, or b. get it to recognize LTE networks without doing that. I've tried so many different things I've found on the forums, like nova launcher menu and going into the IOTHidden stuff to get into LTEfunctionality and that's not even there on the phone.
We're running OREO, but I just don't know what the deal is. Any ideas?
Click to expand...
Click to collapse
Even with the inactive sprint SIM I am given options for APN settings, I can't edit or add any, but I do have options, whereas with the Verizon card it's all frozen out

how to disable lte ipv6

I have unlocked and installed magisk, I can't change apn in the settings, use script to disable ipv6 but immediately restore the default.

You can create a new APN maybe? I was not able to edit the T-Mobile APN that loads automatically with the SIM card, but I could create another one to tweak things like that

YrrchSebor said:
You can create a new APN maybe? I was not able to edit the T-Mobile APN that loads automatically with the SIM card, but I could create another one to tweak things like that
Click to expand...
Click to collapse
I also thought of this method, but due to system reasons, apn will only select the first access point by default and cannot be changed, so this method is invalid.

cjjdaq said:
I also thought of this method, but due to system reasons, apn will only select the first access point by default and cannot be changed, so this method is invalid.
Click to expand...
Click to collapse
Ah ok, I wonder why you are not able to select a different APN? When I create a new one, I am able to click the circle next to it and have the phone switch to that one.

YrrchSebor said:
Ah ok, I wonder why you are not able to select a different APN? When I create a new one, I am able to click the circle next to it and have the phone switch to that one.
Click to expand...
Click to collapse
Because of system bugs, I used China Telecom's sim card.
I use a script to disable ipv6
echo 1 > /proc/sys/net/ipv6/conf/rmnet_data1/disable_ipv6
But I found out
cat /proc/sys/net/ipv6/conf/rmnet_data1/disable_ipv6
The value has changed back to 0

cjjdaq said:
I have unlocked and installed magisk, I can't change apn in the settings, use script to disable ipv6 but immediately restore the default.
Click to expand...
Click to collapse
...just curious, what's wrong with ipv6? I enabled both of them, 4&6.

mzsquared said:
...just curious, what's wrong with ipv6? I enabled both of them, 4&6.
Click to expand...
Click to collapse
Ipv6 has no problems, but the environment I use is a bit special, so I need to disable ipv6

I have found a way to use
Echo 0 > /proc/sys/net/ipv6/conf/remnet_data1/accept_ra
Echo 1 > /proc/sys/net/ipv6/conf/remnet_data1/disable_ipv6
Then restart lte

Oxygen OS, root, APN and the meaning of life

Hi All,
I appeal to you keepers of the knowledge to enlight me on some points I need to clarify.
The situation:
I recently bought an unbranded Oneplus 6T and I (still) use stock oxygen OS V9.0.17.
Since a couple of years I've been using a data-only plan with a VOIP SIP account as my main phone service. It was working great on my beloved almost-6-years-old Nexus 5 until I dropped it to it's death. I chose the 6T as replacement because it seemed a good option for rooting and custom ROMs.
My service provider is FIDO in Canada. They offer a very good value data-only plan (15$ CAD for 4GB), but for an UNKNOWN reason to me, with FIDO the SIP calls drop automatically if I use the default autoconfigured APN for LTE. The simple solution to that is to create a new empty APN config and fill it manually. Once done, SIP calls work like a charm (again, I don't know what causes this).
On my Nexus, I was running Android 8.0 which permitted me to modify the APN. But since Android 8.1 Google (don't be evil right) introduced the APN locking for participating providers. FIDO seems to be one of them since I cannot change any APN configuration on Oxygen OS 9.0.17. That renders my phone useless (unless I choose the 3G apn, which honestly sucks).
Now that you know a little bit about my life, here are my questions.
First thing I did:
I rooted my phone with Magisk 20.0 with the intention of modifying the /system/etc/apns-conf.xml and try changing the default FIDO APN configuration with the hope it would work.
I tried by many ways to modify it (using ADB, root browser, root explorer, solid explorer) and I couldn't change the content. Even worse, when I tried to change the permissions to the file to RW using root explorer, the file turned empty (0b) and it's still impossible to modify it (I tried editing it, deleting, replacing it, nothing works).
Question 1: The simplest of ways would be to be able to change the APN. Does anybody knows a trick (using root or not) to do that on stock OOS 9.0.17. Anybody ever tried changing apns-conf.xml?
Question 2: Did anybody succefylly edit system files onstock OOS 9.0.17 using root?
Question 2-A: Does anybody know why I break the file when I change the permission? I'd like to understand what's going on.
Another option that I am considering is using a custom ROM that disables this nonsense APN lock mechanism.
Question 3: Does anybody have a good ROM suggestion that is positively disabling this APN lock and that would allow me to change my APN with FIDO? (I was considering Lineage but I couldn't get a firm answer on the APN unlock capability).
I searched the web for many hours without success, I hope you can help me with this.
Thank you all for your insight.

jfmartel said:
Hi All,
I appeal to you keepers of the knowledge to enlight me on some points I need to clarify.
The situation:
I recently bought an unbranded Oneplus 6T and I (still) use stock oxygen OS V9.0.17.
Since a couple of years I've been using a data-only plan with a VOIP SIP account as my main phone service. It was working great on my beloved almost-6-years-old Nexus 5 until I dropped it to it's death. I chose the 6T as replacement because it seemed a good option for rooting and custom ROMs.
My service provider is FIDO in Canada. They offer a very good value data-only plan (15$ CAD for 4GB), but for an UNKNOWN reason to me, with FIDO the SIP calls drop automatically if I use the default autoconfigured APN for LTE. The simple solution to that is to create a new empty APN config and fill it manually. Once done, SIP calls work like a charm (again, I don't know what causes this).
On my Nexus, I was running Android 8.0 which permitted me to modify the APN. But since Android 8.1 Google (don't be evil right) introduced the APN locking for participating providers. FIDO seems to be one of them since I cannot change any APN configuration on Oxygen OS 9.0.17. That renders my phone useless (unless I choose the 3G apn, which honestly sucks).
Now that you know a little bit about my life, here are my questions.
First thing I did:
I rooted my phone with Magisk 20.0 with the intention of modifying the /system/etc/apns-conf.xml and try changing the default FIDO APN configuration with the hope it would work.
I tried by many ways to modify it (using ADB, root browser, root explorer, solid explorer) and I couldn't change the content. Even worse, when I tried to change the permissions to the file to RW using root explorer, the file turned empty (0b) and it's still impossible to modify it (I tried editing it, deleting, replacing it, nothing works).
Question 1: The simplest of ways would be to be able to change the APN. Does anybody knows a trick (using root or not) to do that on stock OOS 9.0.17. Anybody ever tried changing apns-conf.xml?
Question 2: Did anybody succefylly edit system files onstock OOS 9.0.17 using root?
Question 2-A: Does anybody know why I break the file when I change the permission? I'd like to understand what's going on.
Another option that I am considering is using a custom ROM that disables this nonsense APN lock mechanism.
Question 3: Does anybody have a good ROM suggestion that is positively disabling this APN lock and that would allow me to change my APN with FIDO? (I was considering Lineage but I couldn't get a firm answer on the APN unlock capability).
I searched the web for many hours without success, I hope you can help me with this.
Thank you all for your insight.
Click to expand...
Click to collapse
Have you tried creating a new apn with the info and settings you need?

jestyr8 said:
Have you tried creating a new apn with the info and settings you need?
Click to expand...
Click to collapse
Yes! I tried that many times.
So, what happens is when you have an "APN locked SIM" inserted in the device, you have no access to any edit option. No editing, no adding, nothing. You are in view mode for the APN settings (which is useless really).
In my research I found that if you insert a "not APN locked SIM" you get acces to creating a new APN (and of course editing the actual SIM APN settings).
I happen to have a SIM card (my girlfriend's) that is not APN locked on hand. I tried a couple of times creating a new APN with the FIDO settings but when I inserted back the FIDO SIM my new APN was not in the list of options.
... I should have deepened my research! I failed at that...
What I didn't realize at the time is that when you create a new APN, Android defaults the MCC and MNC parameters with the values associated with the currently inserted SIM!!! I tought it was some kind of black magic settings used by the service provider for it's network to work. But not later than TODAY (I did more research today...) I learned that: MCC = Mobile Country Code and MNC = Mobile Network Code. ****!!!
Sooooo, all I had to do is create a new APN with my girlfriend's SIM inserted and set (along with all the other settings) the MCC and MNC to the values corresponding to FIDO config (which in the past I left as is since I didn't know what they were). Save. Shut down my device. Insert FIDO SIM, reboot, and fuc**ng VOILA!!! The newly created APN is now available and... wait for it... EDITABLE!!! So if I messed-up any setting I can change it and play around with everything like we did when Google was not Evil.
So here I am with my un-activated FIDO SIM and I can confirm that my newly created APN is selectable, but I cannot try a SIP call for now since I've closed my account. Tomorrow I'll get a new subscription & SIM and update this post. But I think this part is solved.
All that being said, Question 1 is partially answered to my greatest pleasure. But I'd still like to hear your experiences about modifying sytem files on OOS with root access.