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Help - Cm7 Update - G2x - No APN connection....

Hey Everyone,
Whenever I update to any version of cm7 and flash a new kernel with it I lose APN connectivity... I can't manually connect either. No 2g/4g nothing. Wifi is fine. I've tried multiple versions of cm7, etc. I don't have the same issue with Eagle 1.0.4 and/or Team Whiskey, flashing back to stock, etc. but anytime I try to check out CM7 I can't get it going! I figure it's something simple but does anyone have any ideas so I can try to get some OC going! Lol...
Thanks Everyone...

deadly1 said:
Hey Everyone,
Whenever I update to any version of cm7 and flash a new kernel with it I lose APN connectivity... I can't manually connect either. No 2g/4g nothing. Wifi is fine. I've tried multiple versions of cm7, etc. I don't have the same issue with Eagle 1.0.4 and/or Team Whiskey, flashing back to stock, etc. but anytime I try to check out CM7 I can't get it going! I figure it's something simple but does anyone have any ideas so I can try to get some OC going! Lol...
Thanks Everyone...
Click to expand...
Click to collapse
FYI: wrong forum.. Be ready for some people to be mean to you. Just a heads-up.. lol

Sorry I'd more than happily move it. I'm completely new really to posting here obviously but been lurking for a while now. Don't mean to be a complete noob lol

deadly1 said:
Sorry I'd more than happily move it. I'm completely new really to posting here obviously but been lurking for a while now. Don't mean to be a complete noob lol
Click to expand...
Click to collapse
It's already been reported. A mod will move it shortly. Next time post in the Q&A section. This area is for Development only...hence the name.

Try it without the kernel.
- BFL

I've been recently having the same problem.

Not a problem, this was a question concerning development and more or less the roms I'm downloading from this section hence I posted it here... won't happen again.
As for flashing w/out the kernel, I thought you needed another kernel to run cm7 with? I'm trying to overclock basically which I can't do on the stock kernel either.... so I'm not really sure what to do but I'll see if I can flash back to gingerbread, get my data going and flash back to cm7 w/out using any new kernel... have to make sure the rom doesn't autoinstall the new kernel either when you flash the rom

Update the apn settings for t-mobile. You can find them online just by looking them up. Try that.
-Insert signature here-

twitch153 said:
Update the apn settings for t-mobile. You can find them online just by looking them up. Try that.
-Insert signature here-
Click to expand...
Click to collapse
Give me a few I'll try to manually add them as an apn. thanks!

deadly1 said:
Give me a few I'll try to manually add them as an apn. thanks!
Click to expand...
Click to collapse
What works for me is a hard reboot. Hold volume up and power for 8 seconds. Apn should be there when you boot back up (usually). I have this issue with stock and any other kernel
Sent from my LG-P999 using XDA App

SOLVED!
I had the exact same issue and fixed it by installing the SIM card that came in the GX2 box.
I had been using my Nexus One SIM up to that point. The T-Mobile customer service rep told me that the G2X needed the updated SIM card and that without it, there would be data issues when not on Wi-Fi.
Write the SIM card information down before installing it in the G2X and calling T-Mobile (or whoever is your service provider) b/c they need the serial number in order to properly provision the phone.

Apothegm said:
What works for me is a hard reboot. Hold volume up and power for 8 seconds. Apn should be there when you boot back up (usually). I have this issue with stock and any other kernel
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Worked like a charm!!! Thank you!!
Simple yet effective lol
Finally up and running on cm7 with no apparent issues to report!

Also I found out that going into settings,into the apn settings,pressing menu then reset to default seem to kick it outta limbo

Great info everyone, thanks!
I'm still working on getting the market up and running on cm7, but otherwise everything is running really clean!

Thread moved to proper forum.

I have the same issue, and only on CM7..
Other Stock roms work OK for 3G
I have 2 sims - one uses regular APN setting (supplied from simcard) the other one is manual
The one that uses default (simcard) apn worked once after first install..
Than doesnt work..
VOL up + power didnt do the trick..
Whenever I put the custom APN simcard, it doesnt apply the settings..
Very weird..

I'm using the SIM out of my G2x box. Maybe it helps a little but it still happens when coming from a reboot, wifi, or airplane mode.
When you go to Mobile Networks, it won't connect to any of the listed networks.
This is already known and discussed, but to put a solution to this thread:
Go into Mobile network.
Let it scan
Select ANY network, it will error
Select Automatic until it reconnects again
Done.
Once it reconnects, you should be able to go into APN settings and see "Simple" and "T-Mobile". Sometimes if you can you select "Simple" then select "Tmobile" again, it speeds things up.
Works EVERY time. Sucks it requires this most of the time but it only takes a second and will stay connected for as long as the phone is turned on.

Hard reset (VolUP+Power) didnt work..
Is it a problem with their firmware?
I require custom APN's on my Network operator -- stock (or eagle blood/team bionics) work great, but CM7 doesnt for some reason..
Cant figure out why..
Even 7.1 RC0

.me said:
Hard reset (VolUP+Power) didnt work..
Is it a problem with their firmware?
I require custom APN's on my Network operator -- stock (or eagle blood/team bionics) work great, but CM7 doesnt for some reason..
Cant figure out why..
Even 7.1 RC0
Click to expand...
Click to collapse
APN's won't stick until you do what I said above. Once you disconnected and reconnect, APN's should pop up. If you created your own APN, it should THEN be displayed.
Even customs APN's won't be displayed until you disconnect/reconnect using the methods above.

player911 said:
I'm using the SIM out of my G2x box. Maybe it helps a little but it still happens when coming from a reboot, wifi, or airplane mode.
When you go to Mobile Networks, it won't connect to any of the listed networks.
This is already known and discussed, but to put a solution to this thread:
Go into Mobile network.
Let it scan
Select ANY network, it will error
Select Automatic until it reconnects again
Done.
Once it reconnects, you should be able to go into APN settings and see "Simple" and "T-Mobile". Sometimes if you can you select "Simple" then select "Tmobile" again, it speeds things up.
Works EVERY time. Sucks it requires this most of the time but it only takes a second and will stay connected for as long as the phone is turned on.
Click to expand...
Click to collapse
I feel like we're missing a step here. There isn't anything to select, unless you go under Network Operators or Access Point Names. APN is blank for me, so i can't select anything, and doing anything under Network operators doesn't work...

[Q] Sense UI Connection Error

I recently purchased a brand new Inspire 4G and unlocked it for T-Mobile. I went through the set up and checked if there was any new software available. It informed me that 1.84.502.11 was availible for download. After the software downloaded and the phone reboot, everythings seemed fine, but when i opend the Sense UI and tried to update the weather I get this error message: "The connection dropped while your weather information was downloading. Try downloading again?"
When I connect for Wifi everything works fine, its only on mobile network when i get this message. Is there a fix for this

I bet you need to redo your APN again for Tmo. The ROM update will force all settings back to ATT.
spewed forth from an Inspire 4G made righteous by CM7

I have my APN settings in. Everything works fine other than that. I'm able to get on the internet on everything else.
Sent from my Inspire 4G using XDA App

I'm trying this from memory since I haven't used sense in a while. As I recall, there is a configuration menu where you can set how often weather, stocks, etc. gets updated. In that dialog you have the ability to choose the APN used for the connection. Look at that, it may be wrong.
Sorry for the late response.
spewed forth from an Inspire 4G made righteous by CM7

Thanks for replying at all, sir.
I've looked in Accounts & Sync menu and seen no such thing that allows me to choose an APN used for connection. :/

Roaming on CM7??

Flashed CM7 the other day (thanks again for the help Carmon!) and love it. Only issue I am having so far is...I've been unable to roam. I live in a fringe area, and normally roam on Verizon towers at home. I attempted *228 several times (while on US Cellular), and the recorded message (voice) states that the update was successful, but the message on my screen says "activation unsuccessful". I am able to make and receive calls and send messages, etc...but the phone will not roam. I have networks set to automatic, and national data roaming enabled. Any ideas?? Anyone??

The screen always says unsuccessful, it's a known glitch. Try setting roam options to home only or whatever, sometimes they get mixed up in the process of building and fixing other stuff.
Sent from my MIUI SCH-i500

sageDieu said:
The screen always says unsuccessful, it's a known glitch. Try setting roam options to home only or whatever, sometimes they get mixed up in the process of building and fixing other stuff.
Sent from my MIUI SCH-i500
Click to expand...
Click to collapse
Appreciate your response! I've tried every setting. Home only gives me US Cellular signal. When set to "Affiliated Networks", the setting will not remain there, it resets itself to Home only. When set to "Automatic", it catches US Cellular signal, but does not roam when there is no US Cell signal.
Surprised nobody else has this problem...

It may be a issue in which we need to go all the way back to stock and do the ADW fix.

Yeah possibly... scarmon do you have that to post? Ive never had to do it and I never copied it down...
Sent from my MIUI SCH-i500

I know how to do it but not sure on the names for everything until I'm in there. Let me see if I can find the thread with the.video on it. If not the OP can IM me. He has my Gtalk and I can walk him through it if needed.

Step by steps found here
http://forum.xda-developers.com/showpost.php?p=12776933&postcount=4

scarmon25 said:
Step by steps found here
http://forum.xda-developers.com/showpost.php?p=12776933&postcount=4
Click to expand...
Click to collapse
Seems that fix is for phones that are always roaming. Is it known to work for the problem I'm having also (no roaming)??

Just got done flashing back to stock and completing the ADW fix. Flashed back to CM7...still no roaming. Tried every setting and every combination of settings with NO luck.

rthibeault said:
Just got done flashing back to stock and completing the ADW fix. Flashed back to CM7...still no roaming. Tried every setting and every combination of settings with NO luck.
Click to expand...
Click to collapse
That's really odd... are you sure you're in a roaming area? The phone wont roam if you have uscc signal.
Sent from my MIUI SCH-i500

I am in a roaming area...as I mentioned above, I live in a fringe area, and my phone (usually) constantly switches between US Cell and Verizon. Now, it does not switch...it just goes from US Cell to NO service.
On another note, since I re-flashed, I am not receiving sms. And when I send sms, they are blank???

When you went back to stock did you flash the EH09 Build or did you flash EE19.

Edit. Didn't mean to double post

I did a full flash back to stock Froyo since I had the files already...
Everything is working except sms...

[Q] Not registered on the network problems

I've read a lot on the internet but have not found a good answer for me. In certain locations, almost daily, I get either a "not registered on the network" message or a "sim not allowed ##3" message on my Infuse. If I switch the phone to airplane mode and then back off of airplane mode it always reconnects to the AT&T network. The problem started after I changed my ROM from Infused 1.5.3 to Zeus 6. I've flashed to Mind of Mac 1.4 but that didn't fix the problem. I've tried a new SIM card, different APN settings and several other changes, but it didn't help. If I have a good 4g connection it never has the problem. It never re-registers on the network until I do the airplane mode on and off thing or reboot the phone. My iemi number shows up weird on the phone too. What is the best way to fix this problem? Thanks.

No one has a clue?
No one has a clue how to fix the problem? It happens when I lose 3g or 4g connection.

What modem do you have?
Sent from my A500 using xda premium

Modem
I currently have UCLB3. I have tried a few different ones but it does the same thing with each one I've tried.

Sounds like you know what you are doing , unfortunately it sounds like a hardware issue. If going to settings > mobile networks > network operators and choosing AT&T does not fix it the only thing to suggest is return for repair or exchange. As you know, you will have to return it to stock so after you do that you may want to test it one more time. Sorry, not the answer you wanted but the best answer I have, Regards.

The following were found by googling "Samsung infuse imei"
http://forum.xda-developers.com/showthread.php?t=1726149
http://forum.xda-developers.com/showthread.php?t=1729838
Idk if those will help...but maybe if you restore your imei so its no longer weird your problem will be fixed...
Sent from my HTC Holiday using Tapatalk 2

mg2195 said:
The following were found by googling "Samsung infuse imei"
http://forum.xda-developers.com/showthread.php?t=1726149
http://forum.xda-developers.com/showthread.php?t=1729838
Idk if those will help...but maybe if you restore your imei so its no longer weird your problem will be fixed...
Sent from my HTC Holiday using Tapatalk 2
Click to expand...
Click to collapse
From recent experience - I would avoid using the fixes listed above as they will change your IMEI.
I say this as I was having a similar issue -- I had been running on the ParanoidAndroid ICS rom for a few days and my I997 started to do the same thing. Network connection was fine most of the time but it would occasionally drop out to no network. Except swapping between airplane mode didnt always fix it. If i rebooted the phone and it would pop up with "Unknown" Baseband Version, and no IMEI/IME SV until it connected again... whenever it decided to do so.
I flashed a few different modems to no avail.
Used GTG's stock restore... and it still showed no baseband or IMEI.
Searched through everything i could find and I found the 2 above posts. Being the cautious person that I am, I was skeptical to run the "fix" since I know playing with the efs folder can do.. fun things.. I backed it up with EFS Pro.
http://forum.xda-developers.com/showthread.php?t=1308546
So after that - I did the fix from those two posts. It worked. I got a signal. HUZZAH. But I could only make a few calls before it would drop out, and I couldn't send or receive text messages at all they would just stall and error out.
So I took a look at the IMEI again and noticed that it was NOT *my* IMEI, it was presumably the imei of the person who Truckerglenn got the backup from so long ago.
Figured at this point my phone is going to have to go back to Samsung to fix since it's still dropping out, the IMEI is wrong and I can't send texts
Can't break it anymore than it's already broken right?
Go back into root browser, delete the EFS folder entirely. *poof* gone. Reboot. Use EFS Pro to restore the backup I had created (GOOD THING!) phone reboots. Instantly picks up the signal again, I get 15 text messages, 2 voicemails AND my IMEI shows what it should be now.
*HOPEFULLY* it holds onto its connection now. If not, back to stock and back to samsung it goes - now with the correct IMEI. heh
Sorry for the long story

Thanks! May have found a partial fix.
Thanks for the tips and information. I think I may have found a partial fix. It seems that picking the "WCMDA only" in the "Network Mode" options seems to solve the problem for me. If it is set on "GSM/WCCMA (auto mode)" option, it seems to cause the "SIM not allowed ##3" or the "not registered on the network" problem when I am in an area where the 4G or 3G signal is weak. I will do some more testing. It appears that if I don't have 3G or 4G available in any given location my phone won't connect to the cell towers at all even though other users can connect without any problems. Does this give anyone any other ideas? Do I possibly just need new APN settings?

Have you tried flashing a new radio? Does a complete wipe and restore to UCLB3 make any difference?
Has any of these roms/firmwares that you flashed been done so through Aroma installer? I know Aroma gives you the option to change modems, and if your download was buggered that could have caused it.
I'm just tossing ideas around here... I'm up early and looking to help.

The work around works
Yes, I have flashed the radio but that didn't help. I have discovered the "fix" is to set my phone on "WCDMA only". It seems that the phone will only work if 4G or 3G is available. I am not longer getting the original error messages. So that's a good thing. If I ever go to where 3G and/or 4G is not available I will have to try something else. Thanks for all the replies.

Permanent Fix for intermittent data issue on CM9/10/AOSP 4.0+ based ROMs

After months of having this reoccurring issue myself, I FINALLY figured out a solution. It had gotten so bad on mine that wiping the rom won't matter... the only solution was to wait for several minutes/hours until it returned or switch to a Sense-based or a GB rom. This fix should appeal to those who had to return to older roms due this issue driving them insane!
Let's clear up a few things first.. to those having this issue and being able to restore data by going into airplane mode might wanna invest in a new sim card. Best to go into a retail location and pick one out yourself. The newest ones (model number TM9177 or higher) work the best and have the fewest data drop offs. That should fix a lot of users intermittent data issues from returning.
If you still have data issues and already have a newer model sim card (TM9177 or higher) OR have data issues that don't get fixed after a reboot, switching into airplane mode, wiping, normally have to wait a long time for it to return on its own, etc.... then this part will fix it. :highfive:
Go to home, menu, settings, wireless & networks, more, mobile networks, access point names, menu, and FINALLY add a new apn. Chose whatever for name of apn (maybe tmobile alternate, tmobile 2, or whatever), the next line, the actual apn, with be "wap.voicestream.com" (no quotes, duh). Next add this line to MMSC... "http://mms.msg.eng.t-mobile.com/mms/wapenc". Everything else should be left as is. Now hit menu, save apn. This new apn seems to work with all features I've tried... text messaging, full data access, same speed as default epc.tmobile.com apn, tethering, etc. Haven't tried MMS but the settings for that line is there in our alternate apn we just made. Please post results on that if anyone still uses that feature So... that's it. The old apn works nicely and you say GO TO HELL! to the annoying data icon flashing on and off forever!
Be sure to post your results/experiences to confirm but it seems to be gone on 4 other MT4GS CM9/10 users besides my own. I REALLY HOPE y'all are as happy with this fix as much my family, friends, co workers, and I are! Do forget to use the thanks button
Also... you can try "internet.voicestream.com" for an additional apn. I'm not sure if MMS will work on that one even with the MMCS set as "http://mms.msg.eng.t-mobile.com/mms/wapenc" but it's work a try. If anyone wants to check it out is welcome to. Again... post your results. I'm not sure how long tmobile will leave these old apns active but I bet it's longer than anyone will be still using this model lol! Enjoy!

I've been one of the lucky ones not to have had this problem but if this fixes the issue of those that have been, this is one NIIIICE CATCH! GOOD WORK, sino8r!!
I'm very anxious to hear how this works out for everyone!

Intermittent Data 3G 4G Loss Disconnect
Wow, Thanks. I've been fighting with this all day.
I've been running SilverL CM 10.1 for a couple of weeks and today suddenly lost my T-Mobile data connection.
I tried many solutions (I wish I'd found this thread sooner). Wiping Cache, Fix Permissions, Reflashed, different Kernals, different loads. Going back to Gingerbread worked, but I lost the data when I went back to ICS/JB.
There was even another thread that was close with deleting all APNs and creating a new one, but the settings still weren't there.
This took care of it right away.
THANKS !!!!

Problem with t-mobile service, signal
Would u be able to help me with this problem? http://forum.xda-developers.com/showthread.php?t=2203084

Sir You just saved my phone and my sanity thank you so much !!!!!!
---------- Post added at 07:29 PM ---------- Previous post was at 07:00 PM ----------
Ratler5 said:
Sir You just saved my phone and my sanity thank you so much !!!!!!
Click to expand...
Click to collapse
Tested it with 2 diffrent JB roms fixed data problem in about 10 seconds from selectign new APN. Data speeds are back to normal! Will update if anything changes.

After several days even weeks of no issue then suddenly I get data issues again so I go back to mobile networks to find the second APN I created to be deleted... Anyone experience this?
Sent from my MyTouch 4G Slide using xda premium

thanks for the info! i ran across this thread while searching for a new ROM for my mytouch 4g slide, hoping it would fix the issue. once I arrived to the access point names, i noticed that the apn selected was for LTE. I switched to the regular one and now it works great. thanks!

I had this issue while on cm9 releases but it had gone away after I began using unofficial 10.1. Sort of. In certain areas- and I assume with certain towers - my data wouldn't work with some apps (ie., Facebook, Google maps) even though the data icon would show "H" or "3g" locked on and blue consistently. Sure enough, this fixed it right up.
Also, although my phone shows the option for the Tmobile lte APN in the settings, it was not selected by default. Thanks for this!
Sent from my MyTouch 4G Slide using xda app-developers app