[Q] how to change default MMC and MNC??? - Android Q&A, Help & Troubleshooting

so I am having APN issues after upgrading from 2.6.3 to 4.1.2 rooted. no data or mms, phone and txt works great. same provider.
galaxy s2 sch-r760 generic cdma, ACS provider here in alaska. apparently goes through gci?
now this is going to be a book, so grab a tasty beverage.
when i add the APN the mnc and mmc are not correct.
when i change them it discards the APN
i have no sim.
this thread did not help
http://forum.xda-developers.com/showthread.php?t=715788
if i dont change those, it seems to communicate with my network as it fills in the mmsc field. but i get no internet.
if i enable then disable airplane mode it shows the 3g emblem, then it disappears.
I have all the correct APN info from my provider.
I have tried every way of changing the APN-conf.xml file but nothng has worked.
my thinking is that i need to change the default mnc and mmc that appear when i go to add the apn, to the correct values and then i will be able to save it.
however i cannot find that field in the systems. if someone know a trick i havent found in the last week of researching, please help.
could my phone be locked? if so how would i go about unlocking? could upgrading my software have changed my cdma settings??
i am fairly new to messing with android but i have some linux experience and am a quick learner.
Also if there is a custom rom or kernal or binary or what ever the operating system is called that might fix this issue and work on my device please let me know.
if someone does help i will pay a reward to them via pay pal, it wont be much but hey its better than nothing.

Related

[Q] Strange Problem with Bell Atrix After FR 2.1.1

Hi ,
I have Bell Atrix, unlocked, I flashed the Franch SBF 2.1.1, and all worked well, EXCEPT..
the phone is always roaming, I cannot get data unless I check the Data roaming, there is a little (r) next to my signal all the time..
and I don't know how to fix it..I checked Build.prop, to see if there any setting there.. but I dont know which and what to look for..
my question is: is there a way or a settings that I can change to get rid of the raoaming issue.
as I said my Atrix is BELL and I am with fido..
You need the apn settings for fido, and create an access name under wireless settings - network settings -access point names.
Have a look here:
http://forum.xda-developers.com/showthread.php?t=537829
Cheers!
Bell Atrix Roaming after FR 2.1.1
NFHimself said:
You need the apn settings for fido, and create an access name under wireless settings - network settings -access point names.
Have a look here:
http://forum.xda-developers.com/showthread.php?t=537829
Cheers!
Click to expand...
Click to collapse
I did put the APN for Fido, unless I turn on the roaming data, it does not connect.. also now one seems to explain the (R) next to the signal.. why the Bell Atrix started to show me that its roaming after flashing with FR 2.1.1 sbf.. in on Montreal with FIDO and fido sim in my Atrix..
that is my real question.
Hi,
There are two numbers, MCC, and MNC in the APN, the phone will show roaming if what the network reports is different than what is setup.
MCC (mobile country code) for Canada is 302, you should have that.
MNC (mobile network code) for Fido is 370, if your APN isn't using that then you will be roaming.
http://en.wikipedia.org/wiki/Mobile_Network_Code
The French sbf may not have the canada codes in it's apns.conf, see attached file from the Bell stock firmware, you can replace /etc/apns.conf with that, then go to access point names and reset to default.
Cheers!
NFHimself said:
Hi,
There are two numbers, MCC, and MNC in the APN, the phone will show roaming if what the network reports is different than what is setup.
MCC (mobile country code) for Canada is 302, you should have that.
MNC (mobile network code) for Fido is 370, if your APN isn't using that then you will be roaming.
http://en.wikipedia.org/wiki/Mobile_Network_Code
The French sbf may not have the canada codes in it's apns.conf, see attached file from the Bell stock firmware, you can replace /etc/apns.conf with that, then go to access point names and reset to default.
Cheers!
Click to expand...
Click to collapse
I'll take a look in my apns.conf but it must have the Canada codes as I have been running the french sbf since it was leaked on my Bell version (on Bell) and never had it roam. I just had to add the Bell apn (obviously) and it worked fine.
I do have a question for you though, since you seem to know a lot about these phones, etc. On my last phone (Samsung Galaxy S), there was a secret menu code (like *#*#4636#*#*) that would take you to the network band settings. From there you could not only see what band the phone was running on, but you could SET what bands were active. Is there anything like that on the Atrix? I am curious if the modem in these non Bell sbf's like Telstra/french sbf access the 850MHz band or not.
Hi,
*#*#4636#*#* is the only one I know about. You can set GSM vs GSM only etc, that would be where you'd change bands.
The codes would only be launching an android app/service somewhere, i tried a hex edit and file search of apps, couldn't find it.
Cheers!
NFHimself said:
Hi,
*#*#4636#*#* is the only one I know about. You can set GSM vs GSM only etc, that would be where you'd change bands.
The codes would only be launching an android app/service somewhere, i tried a hex edit and file search of apps, couldn't find it.
Cheers!
Click to expand...
Click to collapse
Thanks for looking. I wasn't sure if you could even manually set anything other then selecting "USA Bands" in 4636. It's no big deal, i'm just used to being able to go in and manually select bands on my previous SGS.
My signal is fine, it was just for curiosities sake.
HI NF
I check my APN. here are the values
Name: FIDO
APN: Internet.fido.ca
USERNAME:Fido
PWD:FIDO
*****
MCC:302
MNC: 370
Those are the only values I have..
this is really strange.. according to the above, I should not be roaming.. but something changed in my phone when I first flashed the French SBF.. and is shows roaming after that flash..
this is really strange..
UPDATE: another problem : when I choose Setting->call Setting->Operator Selector, I notived two things.
the Check box next to Select Automatically is not there, I think it was there when I was on Bell Stock,
next when I choose .. Search Networks.. it searched for long time and phone stops responding, I have to Turn off .
also, when I choose Advanced Setting the Call waiting is greyed out, when I click on Caller ID I get Invalid SIM Error.. again I have to reboot to get the phone working again..
the info I have after *#*# 4636 ...
Nieigbouring CID shows as UNKNOWN..
Roaming: Roaming
NETWORK TYPE:UMTS
not sure if this will you a clue..
Hi,
Sounds like it might be an issue with the radio itself, or it could be that you are just roaming, perhaps a network outage. I would try flashing the telstra sbf, see if you get the same problem. If we had a Bell sbf would could revert back to the stock radio, so we have two options, 1.87 or 1.92. You could try just flashing the radio to see.
In my settings, I have it set to GSM (auto), nothing special there. In network settings, I have it set to automatic, under operator selection, auto is selected. I don't have roaming issues myself with either firmware, but I am not using my phone in your area. Could just be a network update in my area from being in the same boat.
Cheers!
NFHimself..
I followed your instructions about Restore the partitions.. and it works.. I dont have roaming anymore and data work.. you are the man!!! thanks so much for your help
it Worked!!!
I followed your instructions to RESTORE the phone and man.. I was so happy to see it work.. thanks so much for your help..
You're welcome, two times.
Cheers!

Manually switch APNs

I've searched to the best of my ability and can't find much help. My problem is that when I'm any custom ROM (tried about 5 including CM7, CM9 and RootBox JB) I must manually switch APNs when I get a MMS message. So for example, if I receive a picture message, I have to go into my APN setting and manually select my MMS APN, then go back to my messaging app and hit download. Then once it downloads, I have to go back into my APN setting and switch back to my internet APN. On the stock ROM this was not the case. I have all the correct settings, I'm absolutely sure. I've tried editing the apns-conf.xml file to add my carriers settings. Tried flashing without the sim card in. Can't seem to get it to work. I'd really appreciate any help you guys can provide.
Combine them
allyourbase said:
Combine them
Click to expand...
Click to collapse
I assume you mean combine the two APN settings. I've tried that. All that does is leave me without internet or mms capabilities.
Seriously? what provider do you have? I'm guessing since you're in the USA judging by the american flag in your profile that you're on ATT or straight talk? Telling us what provider you have would help quite a bit..
Edit, I thought help me, help me I'm dying questions belong in the QnA forums?
Sorry, knew I was forgetting something. My carrier is Viaero. I live in the middle of nowhere in Colorado so its basically the only option. AT&T doesn't cover our area. And now this isn't an urgent issue, just something that kind of annoying. All I was looking for were some ideas on how to remedy the situation, so I thought general would be more appropriate.
Post both apns please
I've verified these with Viaero and with another SII running stock. also had an unlocked iPhone before which these worked with. Another side note, on custom roms if I put in the "APN TYPE" I get neither internet nor MMS. So I have to leave those blank to get it to work at all.
NAME
Viaero Connect
APN
internet.vedge.com
APN TYPE
internet
NAME
Viaero MMS
APN
mms
MMSC
http://mms.viaero.com
MMS PROXY
10.168.3.23
MMS PORT
9401
APN TYPE
mms
Did you ever figure this out? I have the same issue.
For MMS Part .... change port number "9401" to just blank

Can't save APN on CM 10.2

I am on vacation in Costa Rica and bought a prepaid sim from Kolbi, a local carrier. I can make calls but can't receive texts or access data.
I will need to get MMS working because I need to send a text to the carrier to activate the data feature.
I tried to add the APN for the carrier based on settings that I found online but it never seems to save. After each time I add it the APN list shows as blank.
As a workaround, I was thinking of adding the APN to the APN config file and dirty flashing over the ROM.
I can only use the hotels crappy WiFi so it would be difficult to download another ROM.
Any help here would be greatly appreciated.
Bump. Does anyone have any ideas here? This seems like it might be a long standing CM bug across multiple devices, very frustrating.
https://jira.cyanogenmod.org/browse/CYAN-2581

Not saving APNs??

Hi guys,
I'm currently on a different country and I want to setup the APN for internet access, however everytime I hit save after typing everything, it doesn't save it. And if I modify the one I have for my original carrier (T-Mobile) it also dissapears. What could be wrong? Thanks!
Nevermind I made it work, but anyway I found out that if I change the MCC and/or the MNC numbers it won't save the APN, I don't know why.
userg2x said:
Hi guys,
I'm currently on a different country and I want to setup the APN for internet access, however everytime I hit save after typing everything, it doesn't save it. And if I modify the one I have for my original carrier (T-Mobile) it also dissapears. What could be wrong? Thanks!
Nevermind I made it work, but anyway I found out that if I change the MCC and/or the MNC numbers it won't save the APN, I don't know why.
Click to expand...
Click to collapse
Hi, sorry to bump a dead thread but I figured I'll not spam the same question again...
EDIT: I'm trying to add the "dun" keyword in the APN type
I have the same issue but more severe. I can't modify / change the T-Mobile APN to change the authentic type as it doesn't save it; no, I have changed the MCC or MNC.
This wouldn't be a problem if I can actually add a bloody new APN because it won't let me do that either
Do you or anyone know how to fix this? Thanks in advance.
samuraix21 said:
Hi, sorry to bump a dead thread but I figured I'll not spam the same question again...
EDIT: I'm trying to add the "dun" keyword in the APN type
I have the same issue but more severe. I can't modify / change the T-Mobile APN to change the authentic type as it doesn't save it; no, I have changed the MCC or MNC.
This wouldn't be a problem if I can actually add a bloody new APN because it won't let me do that either
Do you or anyone know how to fix this? Thanks in advance.
Click to expand...
Click to collapse
Hi there,
I still can't save any settings, I tried to do what you are trying to do but it doesn't save it. The only thing that worked for me was downloading the internet settings and selecting the correct carrier. Later I figured that my carrier coverage is just crap for LTE where I live, so it is not the phone.
Still I don't know why is protected like this or why we can't add a new APN. Maybe rooting it will open it? I don't know.
My phone is on Lollipop and it did the same on KitKat.
Sorry, I wish I had an answer. Good luck!

Palm Pepito PVG100 : change APN ?

Hello,
I recently got my Palm Phone PVG100 from the US, i'm in the UK (and i absolutely love it!)
I have managed to root it and de-bloat it of Verizon stuff (despite not being overly techie - thanks for the fantastic “how to” guides).
There is 1 problem - i can’t change the APN, which means I can only get 2g / ‘E’ speed with my mobile data, though my SIM can do 3g and 4g. When i go into the APN settings, I can click on the ’+’ to add new APN, but then it’s all greyed out so I can’t actually add anything.
I’m in the UK, on an MNVO of Vodafone in case that makes a difference. Interestingly, when i tried a SIM from a different operator, the phone connected to 3G.
Is there any way to update the APN? Ideally, not too technical...
Thanks
Sam
Bump!
I have the same problem. If you Google "Android 8.1 edit APN" you'll find lots of solutions, but none of them worked for me even with root access.
Did you guys ever figure this out? I have the same problem. I'm trying to get a Tello SIM to work with an unlocked (formerly Verizon) Palm PVG100, but the APN settings are all greyed out. I can call and text, but zero data. If you found a solution to this, please post. Thanks.
EDIT: Forgot to mention. I found the solution. Did the rooting that they explain on this site, and I was then going to pull the APN conf file off the Palm with abd and then edit that, adding Tello, and then put it back, but .... the rooting had already freed up the APN interface (no longer greyed out), so I could just enter my APN info. Thanks much to the developer.
allerretour38 said:
Did you guys ever figure this out? I have the same problem. I'm trying to get a Tello SIM to work with an unlocked (formerly Verizon) Palm PVG100, but the APN settings are all greyed out. I can call and text, but zero data. If you found a solution to this, please post. Thanks.
EDIT: Forgot to mention. I found the solution. Did the rooting that they explain on this site, and I was then going to pull the APN conf file off the Palm with abd and then edit that, adding Tello, and then put it back, but .... the rooting had already freed up the APN interface (no longer greyed out), so I could just enter my APN info. Thanks much to the developer.
Click to expand...
Click to collapse
can you describe what you did in a little more detail? i have a pvg100 and mint mobile. its got 2 t-mobile apn with no data, i got it rooted with magisk but im confused what to do now iv tried 3 different ways that require root one changing the apn file with sqlite, hasnt worked for me even though i successfully replaced the file. i put the mint apn in there and took the t mobile out but it just reappears if im on wifi and spazzes if im not. i also downloaded a file this guy on here had thats supposed to fix apn and get rid of verizon logo but when i enter it in the terminal it says its not recognized as an internal external command or operable program or batch file. i havent figured something out about the path for adb or really how to use it yet smdh
Jeez, I did this so long ago, I don't remember any of the details. Not much of a tech guy, so I did a lot of googling. I did eventually get things going though through trial and error, and have been using the Palm for a couple of years on the Tello system (which I like a lot, by the way). Anyway, if you got it rooted with Magisk, then I think that was the major thing I had to do, because, as I wrote above, I didn't have to jump through the hoops I thought I'd have to to get the APN. Before rooting, I couldn't modify the APNs, but after rooting, I just went to Setup-> Network & Internet -> Mobile Network -> Advanced -> Access Point Names -> the "+" sign and I created a new one called "Tello", with values Name:Tello / APN:wholesale / MMSC: http://wholesale.mmsmvno.com/mms/wapenc / MCC:310 / MNC:240 / APN type: default,supl,mms / APN protocol:IPv4 / APN roaming protocol:IPv4 / APN enabled/disable: APN enabled.
I think I got those values through googling. Anyway, that got it up and going for phone, text, and data. Sorry I don't remember much else of what I changed, but I think it was mostly just rooting it and then finding the right values for the APN settings.
Good luck.

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