Database Info

The APN issues thread

Hi everyone,
I figured I would start this thread to give everyone a place to post their APN issues/fixes/work arounds to maybe cut down on the questions being asked in the development forums. I will include any of the fixes/workarounds I have seen so far and try to keep this thread updated with any new ones that come about. I have learned so much on here on XDA just by searching and reading, I hope that this thread can do the same for anyone else looking for answers. Thanks/credit for all these fixes/work arounds goes out to all the OP's (special thanks to Martovitz for inspiring me to write this) Again this is just random things people have tried that have worked for them,this is NOT a step by step, THEY MAY OR MAY NOT WORK FOR YOU, and they are in no particular order, everyones phone is different:
APN Voodoo:
1) Try Holding power button down while holding volume up to reboot phone.
2) Try pulling battery out while the phone is on, let it sit for a minute, then restart.
3) Try toggling airplane mode on wait a minute, then turn it back off.
4) If simple user is selected in your APN menu try selecting T-Mobile. If this fails try deleting simple user APN.
5) Go into settings>wireless>mobile networks. -let it search, pick one, let it 'error' then select the 'select automatically' option -wait a second, press back to the home screen, wait two more seconds APN issues disappear
6) Run fix permissions in ROM Manager
7) Replace Sim card,try new UICC sim card specifically for 3g/4g devices.
8) Try flashing new ROM while in a good T-Mobile area (ie full bars of reception) to register on network
9) Try reinstalling ROM using this process:
a) Wipe cache
b) Wipe Dalvik
c) Flash ROM
d) Flash gapps
e) Fix Permissions
f) Reboot
10)
a)Turn on WiFi and make sure you're connected.
b) Go into the Market, search "APN Backup".
c) Download the program called "APNsBU (ROOT)"
d) Open the program and click on the "Backup APNs" button.
e) After that's done, click on the "Restore APNs" button. It will prompt you to reboot your phone.
f) After the reboot, open the APNsBU program, click on the menu button on your phone and click "View APNs".
g) You should be able to see "Simple" and "T-Mobile US." Turn off your WiFi and you should be good to go!
11) The fix that's been working for me 100% is to just delete the APN type on both the T-Mobile US and Simple and then make sure T-Mobile US is selected
11) Use ROM Manager to "Reboot into Recovery", once recovery boots simply select "reboot system now" and let the phone boot back up. That's it, when the phone boots back up the apn settings will be restored and data will be working like it should.
***Disclaimer: I am in no way responsible for any damage you do to your phone trying these fixes/work arounds***

pretty awesome thread, thanks for sharing your experiences

Would someone be willing to type up or link to the reason why the APN problems manifest? I really appreciate the list of (supposed) fixes, but I'd also like to know why the problems exist in the first place.

I honestly don't think anyone really knows, but I'm willing to bet with the release of official gingerbread update these problems will disappear
Maybe if everyone starts posting the problems their having and where, when, why, and how they started we could narrow it down
Sent from my LG-P999 using XDA App

APN Issues only occur with not stock roms for me.

Apn issues:
They basically give u no data and when u go to apn settings there are no presets. This usually doesn't happen on first boot on cm. But when u reboot everything dissapears. Some fixes use to work for me but now data works when it wants to
Sent from my LG-P999 using XDA App

webstar1 said:
Apn issues:
They basically give u no data and when u go to apn settings there are no presets. This usually doesn't happen on first boot on cm. But when u reboot everything dissapears. Some fixes use to work for me but now data works when it wants to
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Exactly my problem or when I am on wifi and turn it off I don't get data back either

See and the really weird thing is you get people like me that have never had any apn problems .... but I have only flashed Cm7 rom starting with nb#32. I haven't used any other roms.... maybe that's a possible reason why i have no apn issues.
Sent from my LG-P999 using XDA App

webstar1 said:
Apn issues:
They basically give u no data and when u go to apn settings there are no presets. This usually doesn't happen on first boot on cm. But when u reboot everything dissapears. Some fixes use to work for me but now data works when it wants to
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Have u tried apn'sBU? It fixes every time for me. Usually happens first reboot after new flash (not the reboot out of cwr).
Yah, it's a crazy issue. Cm7 is the only rom I've flashed, I did a few full wipes around nightlies 38+ figuring it would have to help. Made no real difference.
Good luck.
G2X

PrettyPistol555 said:
Have u tried apn'sBU? It fixes every time for me. Usually happens first reboot after new flash (not the reboot out of cwr).
Yah, it's a crazy issue. Cm7 is the only rom I've flashed, I did a few full wipes around nightlies 38+ figuring it would have to help. Made no real difference.
Good luck.
G2X
Click to expand...
Click to collapse
Its a shame but at least you found a fix that works for ya bro
Sent from my LG-P999 using XDA App

Tried all of them besides new sim card and no luck to get cm or any other gb rom to work
Sent from my LG-P999 using XDA App

osugsxr said:
Tried all of them besides new sim card and no luck to get cm or any other gb rom to work
Click to expand...
Click to collapse
Are you having just apn issues or something else?? Apn should be a workaround ill be it annoying to deal with but at least workable, so is something else not working out??
Sent from my LG-P999 using XDA App
Sent from my LG-P999 using XDA App

Think its just apn, running the stock gb update fine . There may have been one other gb rom where my data was working but not sure . Cm just isn't working for me ,
jroyalty7 said:
Are you having just apn issues or something else?? Apn should be a workaround ill be it annoying to deal with but at least workable, so is something else not working out??
Sent from my LG-P999 using XDA App
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Sent from my LG-P999 using XDA App

My data/apn fix...
Okay, I guess this isn't technically a "FIX", but it WILL get your data working again until the next time the apn settings decide to mysteriously disappear.
Use ROM Manager to "Reboot into Recovery", once recovery boots simply select "reboot system now" and let the phone boot back up. That's it, when the phone boots back up the apn settings will be restored and data will be working like it should.
Wish I had an actual fix but this is MUCH better than nothing, and in my opinion easier than taking my case off and pulling the battery every time.

Okay, I guess this isn't technically a "FIX", but it WILL get your data working again until the next time the apn settings decide to mysteriously disappear.
Use ROM Manager to "Reboot into Recovery", once recovery boots simply select "reboot system now" and let the phone boot back up. That's it, when the phone boots back up the apn settings will be restored and data will be working like it should.
Wish I had an actual fix but this is MUCH better than nothing, and in my opinion easier than taking my case off and pulling the battery every time.
Click to expand...
Click to collapse
Its all good bro anything that gets it back is what this threads all about.... ill update the 1st post later tonight. Thanks for sharing.
Sent from my LG-P999 using XDA App

Any time I'm having data or signal issues, this pretty much fixes it.
3) Try toggling airplane mode on wait a minute, then turn it back off.
Click to expand...
Click to collapse

Going to try the clockwork one, would like to run cyanogen but no data is an issue
Sent from my HTC Glacier using XDA App

APN // No data
Having the same issue here with cyanogen ... Tried many build ... I'm adding my APN (I'm sure it's correct, it's working on stock firmware) But on Cyanogen, no data (4G) HSPA+ network ....
Tried removing battery, airplane ... impossible to get data working...
Any clue ?

SpOuK-3- said:
Having the same issue here with cyanogen ... Tried many build ... I'm adding my APN (I'm sure it's correct, it's working on stock firmware) But on Cyanogen, no data (4G) HSPA+ network ....
Tried removing battery, airplane ... impossible to get data working...
Any clue ?
Click to expand...
Click to collapse
Try all of the methods from 1st post... these are the only things people have found that work so far... good luck
Sent from my LG-P999 using XDA App

I tried all... Now i'm on the leaked GB build and my data (4G) is working perfectly.... i'm trying to find the difference... Maybe kernel or driver issue in cyanogen... I don't know
Sent from my LG-P999 using Tapatalk

Please help - Cyanogen Nightmare! Can't connect to cell network

EDIT: RIGHT AFTER POSTING, MY PHONE RANDOMLY STARTED WORKING. I HAVE NO IDEA WHAT I DID BESIDES POST HERE. MAGIC.
I installed Cyanogen version 7.2.0 just fine using the guide that was found here: http://www.mrmuh.com/2012/01/update-a-motorola-milestone-from-motorola-firmware-to-cyanogenmod-7/
However, the next morning I think I enabled the 2g/3g switch widget - and then my phone entered into a constant and continuous loop of "com.android.phone has unexpectedly closed" - and couldn't connect to cell service.
In a panic, I searched everywhere for fixes. I then tried a few of the fixes which instructed you to download "sqlite editor" and do some edits to the settings file. I did this, along with a couple of other network edits, resetting them to "0" instead of the "1" they were currently set to. No help.
Finally, I went into the Open Recovery system and did a full reset on cache/factory reset/etc. and then rebooted into cyanogen. Now my network won't even connect for a half a second and then crash like before - just straight up NO CONNECTION.
Now I've went through and attempted changing back some of those settings I messed around with in Sqlite - but to no avail.
Anyone with any ideas on how I can get an operating phone again, please let me know. I noticed I still have all my apps from previously, so I don't think I'm really factory resetting the phone. That could be part of the issue, I'm sure....I am very depressed and hoping for a miracle!!

Look into installing minimod recovery and then flashing the correct radio for your location after a full wipe.
If you do a google search you should find minimod. I'm on my phone or I would just link you.
Sent from my Milestone using XDA App

OK Thanks for your reply.
However, randomly, just after I posted this - I looked down and my phone had a full 2G Connection. Went into baseband settings, enabled 850 band 3G, and now I have full 3G connectivity.
I have no clue how this happened. XDA forum is magical?
Thanks again for your reply, but thankfully I don't need the minimod suggestion as of now!!

You're welcome. You might want to go ahead and install minimod though. I made the mistake of not having it installed and flashed a new rom without the ability to select bands and was without a phone all day. It's better safe than sorry.
redsrule2500 said:
OK Thanks for your reply.
However, randomly, just after I posted this - I looked down and my phone had a full 2G Connection. Went into baseband settings, enabled 850 band 3G, and now I have full 3G connectivity.
I have no clue how this happened. XDA forum is magical?
Thanks again for your reply, but thankfully I don't need the minimod suggestion as of now!!
Click to expand...
Click to collapse

jhealy said:
You're welcome. You might want to go ahead and install minimod though. I made the mistake of not having it installed and flashed a new rom without the ability to select bands and was without a phone all day. It's better safe than sorry.
Click to expand...
Click to collapse
Good call. I'm just quite happy this is working now, but you are right, don't want that doomsday feeling again. Thanks

im having the same problem here :// i only can get cellNetwork if i restart with airplane mod.. then after i rebooted i go back to normal 3G/2G mode but otherwise i dnt get cell signal// also seems like wifi has some bugs im using HOHO CM7

Do a fresh install of HONO through minimod recovery.
marwan91 said:
im having the same problem here :// i only can get cellNetwork if i restart with airplane mod.. then after i rebooted i go back to normal 3G/2G mode but otherwise i dnt get cell signal// also seems like wifi has some bugs im using HOHO CM7
Click to expand...
Click to collapse
Sent from my Milestone using XDA App

jhealy said:
Do a fresh install of HONO through minimod recovery.
Sent from my Milestone using XDA App
Click to expand...
Click to collapse
i did.. still the same problem ^^

Did you install the correct radio?
Sent from my Milestone using XDA App

Go download a apndroid.apk Google it.
that happened to me too

[Q] Help On G2X

Im Having Problems with my G2x Yes its Rooted it was working fine for a couple of months then today i was just texting and it just rebooted and its like it cant read my SIM card i cant get no signal So can any body help me?

It can't get no signal? So then it does get a signal. Anyhow....
1. Try turning airplane mode on then off
2. Try rebooting
3. Does it say Invalid SIM? Because if it does that's one thing if it doesn't it's a phone issue and can be caused by some ROMs
4. Repeat 1 and 2 above but standing out side where there is no question of signal quality.
5. If at this point you still have no signal tell us what ROM and kernel you have, and under volting or over clocking.

Волк said:
It can't get no signal? So then it does get a signal. Anyhow....
1. Try turning airplane mode on then off
2. Try rebooting
3. Does it say Invalid SIM? Because if it does that's one thing if it doesn't it's a phone issue and can be caused by some ROMs
4. Repeat 1 and 2 above but standing out side where there is no question of signal quality.
5. If at this point you still have no signal tell us what ROM and kernel you have, and under volting or over clocking.
Click to expand...
Click to collapse
This post should be stickied for all phone issues
Sent from my LG-P999 using Tapatalk

Lol, I know right. Maybe I will PM Overground about it. But I swear we all ask those same questions over and over.
Sent from my LG-P999 using xda premium

Волк said:
It can't get no signal? So then it does get a signal. Anyhow....
1. Try turning airplane mode on then off
2. Try rebooting
3. Does it say Invalid SIM? Because if it does that's one thing if it doesn't it's a phone issue and can be caused by some ROMs
4. Repeat 1 and 2 above but standing out side where there is no question of signal quality.
5. If at this point you still have no signal tell us what ROM and kernel you have, and under volting or over clocking.
Click to expand...
Click to collapse
Yep It Says Invaild Sim Card And I am using this one http://forum.xda-developers.com/showthread.php?t=1411016

ITech24 said:
Yep It Says Invaild Sim Card And I am using this one http://forum.xda-developers.com/showthread.php?t=1411016
Click to expand...
Click to collapse
go into recovery, and try wiping cache, see if that fixes it. if not make a backup and wipe data. if it still is not fixed then try flashing a different ROM (even a gingerbread one if needed) and post back what you find.
if none of this helps your sim card might be busted, in which case call your local t-mobile store

Klathmon said:
go into recovery, and try wiping cache, see if that fixes it. if not make a backup and wipe data. if it still is not fixed then try flashing a different ROM (even a gingerbread one if needed) and post back what you find.
if none of this helps your sim card might be busted, in which case call your local t-mobile store
Click to expand...
Click to collapse
Nope my sim card is fine i put my sim card in my brothers phone and it worked and i did everything still saying invaild Sim Card

ITech24 said:
Nope my sim card is fine i put my sim card in my brothers phone and it worked and i did everything still saying invaild Sim Card
Click to expand...
Click to collapse
did you follow the directions above?
if you did then one last step you can take is to use the LG KDZ flasher tool to completely and 100% restore the phone to factory condition (do a search in the development section)
this tool has been know to brick phones, so only do it if you have done all of the above things that i suggested.
if that doesn't work then it is most likely a hardware problem, which means you have a phone sized tablet now

CyanogenMod Install Problems SGH-i727

Rooted fine a SII SGH-i727 samsung AT&T Skyrocket. I edited in-place the file to remove the reference for the phone model (prev. error on installation). Next repacked the zip with changes to the file. All looked good.
Copied files to SD card, rebooted holding vol/power. Able to browse using vol. keys to wipe data/rom, then install zip from SD. Waited a couple min. after no errors presented. Next updated the Google Play installer, waited again a couple just in case.
Turned off, then on, sits on CyanogenMod spinning circle forever and a day. Originally 25 min., then said OK, WTH?
Rebooted again, holding power down, then on, same just sitting there issue.
OK.... Repeated procedure again, wipe, this time did the davik and cache wipe, then installed zip, then Google. Reboot, STILL sits there on spinning circle for boot.
I don't get it. Several posts on this, but I redo, and get same results - insanity is setting in... Please advise, someone
I have my own computer repair business, but not as versed in Android/phones, at least to the OS/ROM level.

kmook said:
Rooted fine a SII SGH-i727 samsung AT&T Skyrocket. I edited in-place the file to remove the reference for the phone model (prev. error on installation). Next repacked the zip with changes to the file. All looked good.
Copied files to SD card, rebooted holding vol/power. Able to browse using vol. keys to wipe data/rom, then install zip from SD. Waited a couple min. after no errors presented. Next updated the Google Play installer, waited again a couple just in case.
Turned off, then on, sits on CyanogenMod spinning circle forever and a day. Originally 25 min., then said OK, WTH?
Rebooted again, holding power down, then on, same just sitting there issue.
OK.... Repeated procedure again, wipe, this time did the davik and cache wipe, then installed zip, then Google. Reboot, STILL sits there on spinning circle for boot.
I don't get it. Several posts on this, but I redo, and get same results - insanity is setting in... Please advise, someone
I have my own computer repair business, but not as versed in Android/phones, at least to the OS/ROM level.
Click to expand...
Click to collapse
I'm using the clockworkmod, v5.0.2.6, Gapps 4.2.2, and CM-10.1.2-skyrocket.zip

Make sure you have twrp 2.5 or 2.6 (ditch cwm , it's buggy for JB and modern roms)
Make sure you're radio is JB friendly i.e. UCMC1 or UXUMA7
Copy cm10 zip and google apps zips to your sd,int or ext doesn't matter
Reboot to recovery
Wipe system,data,cache,dalvik,preload,android secure (do twice,doesn't hurt and maybe better)
Install(flash) cm10.1.2
Install(flash) Google apps
Reboot system
Notes:
1.Search , as this (and related issues) been discussed Gazillion times
2.Do exactly as above
3.Be specific when describing problems , your post is like an app log !
4.There's a dedicated cm10 thread in general forum..

mahanddeem said:
Make sure you have twrp 2.5 or 2.6 (ditch cwm , it's buggy for JB and modern roms)
Make sure you're radio is JB friendly i.e. UCMC1 or UXUMA7
Copy cm10 zip and google apps zips to your sd,int or ext doesn't matter
Reboot to recovery
Wipe system,data,cache,dalvik,preload,android secure (do twice,doesn't hurt and maybe better)
Install(flash) cm10.1.2
Install(flash) Google apps
Reboot system
Notes:
1.Search , as this (and related issues) been discussed Gazillion times
2.Do exactly as above
3.Be specific when describing problems , your post is like an app log !
4.There's a dedicated cm10 thread in general forum..
Click to expand...
Click to collapse
WOW, THANK YOU!
It was the ther ROM writer that was the helper, TWRP! Didn't think that pgm was compatible with my phone, but found that it was, and it did the trick! Now I can go to bed, thanks again :highfive:

kmook said:
WOW, THANK YOU!
It was the ther ROM writer that was the helper, TWRP! Didn't think that pgm was compatible with my phone, but found that it was, and it did the trick! Now I can go to bed, thanks again :highfive:
Click to expand...
Click to collapse
Push the thanks button for him.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 4 Beta

Now reboots on phone calls!
OK, great, now it's working, but it reboots on making an outgoing phone call. Isn't the phone functionality the most important part?

kmook said:
OK, great, now it's working, but it reboots on making an outgoing phone call. Isn't the phone functionality the most important part?
Click to expand...
Click to collapse
No one else is reporting this. It's user error. Start over and follow the instructions.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 4 Beta

kmook said:
OK, great, now it's working, but it reboots on making an outgoing phone call. Isn't the phone functionality the most important part?
Click to expand...
Click to collapse
Found that it reboots while Google Voice is installed --- and activated to make calls using GV.
If I turn off that feature in GV, the call will attempt to go through, no reboots. Enable making all calls through GV, phone reboots!

nistocus sorrow
xcrazydx said:
No one else is reporting this. It's user error. Start over and follow the instructions.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yeah, thanks for that helpful hint --- read my other reply about this topic. :cyclops:
Found that it is the Google Voice App, when enabled on all calls, it reboots. Just found out now that when it's set to ASK, and I attempt to make a call, the call went through, without rebooting.

kmook said:
Yeah, thanks for that helpful hint --- read my other reply about this topic. :cyclops:
Found that it is the Google Voice App, when enabled on all calls, it reboots. Just found out now that when it's set to ASK, and I attempt to make a call, the call went through, without rebooting.
Click to expand...
Click to collapse
No problem, glad I could help!
Sent from my SAMSUNG-SGH-I727 using Tapatalk 4 Beta

Weird ROM behavior, no data connection

So I installed bmm without issue, made my back ups and started trying roms. I had a hell of a time getting anything to boot. I would get stuck on the boot animation every time. Finally got slim kat installed and that is the only one I can reliably boot into. Tried aokp 4.3 which booted the first time but gets stuck on the animation now.
Also, when aokp worked I had no mobile data. Same problem currently with slim kat.
Where do I go from here? I've tried clearing cache and davlik on both with no luck.
Sent from my MB865 using xda app-developers app

You have to add APNs manually
Sent from my MB865 using Tapatalk 2

devilhunter47 said:
You have to add APNs manually
Sent from my MB865 using Tapatalk 2
Click to expand...
Click to collapse
Thanks, Wasn't aware of that. I copied my APNs from my stock ROM. I get data now, just not 4g for some reason. I'm looking around to figure that one out.

nbucko said:
Thanks, Wasn't aware of that. I copied my APNs from my stock ROM. I get data now, just not 4g for some reason. I'm looking around to figure that one out.
Click to expand...
Click to collapse
Untick use 2g only option n initiate a new network search
Sent from my MB865 using Tapatalk 2

devilhunter47 said:
Untick use 2g only option n initiate a new network search
Sent from my MB865 using Tapatalk 2
Click to expand...
Click to collapse
I only have the options of 3g and 2g with 3g already being selected. I don't know whats going on. My stock ROM gets 4g with those APN's, re-entered everything to make sure I didn't miss anything but I still don't have 4g as an option.

nbucko said:
I only have the options of 3g and 2g with 3g already being selected. I don't know whats going on. My stock ROM gets 4g with those APN's, re-entered everything to make sure I didn't miss anything but I still don't have 4g as an option.
Click to expand...
Click to collapse
Type *#*#4636#*#*
Then select ''wcdma only''
Sent from my MB865 using Tapatalk 2

Well wcdma only didn't do anything. After messing with Slimkat and another 4.4 ROM (which only worked until I rebooted) I've decided that there are just too many bugs for me to use it daily. I decided to try a 4.3 ROM but I'm still having issues getting one to boot after the first reboot. I've let it sit on the boot animation for 45 minutes and it never loaded.
I haven't found a lot of advice on the subject of ROMs only booting once. Does anyone have any suggestions?

nbucko said:
Thanks, Wasn't aware of that. I copied my APNs from my stock ROM. I get data now, just not 4g for some reason. I'm looking around to figure that one out.
Click to expand...
Click to collapse
I realize this is an old one, but I thought it might be worth mentioning...
I had the same problem. When I copied APN data (specifically "apn type") from my stock ROM data did enable, but at a very slow speed. A quick search yielded this AT&T site which suggested different settings. I was able to choose the "ATT Phone" config and modify "apn type" from "default,supl,mms" to "default,mms,supl,hipri".
When I modified that value, data was much faster, but still only clocked 3.5 Mbps on my CM ROM vs 5.1 on Stock with SpeedTest.net app. I believe it used different servers and I only did a single AB test.
...and by the way - I am also a bit frustrated with the BMM setup. It seems like a third of the time I am unable to successfully boot back into my CM ROM. It always seems to boot into Stock ROM fine. I do have CM in the second slot which it sounds like some folks prefer to not use.