Develop Bugs

[Q] phone unable to connect to mobile network

hello everyone,
I have my GSM galaxy nexus running aokp_maguro_milestone4 , 3.0.8franco kernel and xxkl1 radio baseband. I used to have no problems with my phone at all until I went on vacation to Spain (I live in Germany) in Spain I had signal but ever since I came back my phone has almost (in the time span of 48 hour it had maybe 1 hour of signal) constantly no signal from my mobile provider (BASE). I have tried reflashing the radio ( I had xxkl2 so I reflashed that and then flashed xxkl1), I have also tried turning phone off and on and leaving it 1 night without battery. any help??
thanks

Check your APN settings, if they are correct try to make a new APN profile from scratch.

checked apn and they were OK. made a new apn with values I found online and still no luck? should I maybe just restore everything to default and flash the stock from?

axjacosta said:
checked apn and they were OK. made a new apn with values I found online and still no luck? should I maybe just restore everything to default and flash the stock from?
Click to expand...
Click to collapse
APN settings are only for data. They do not impact signal.
Go to Settings->More->Mobile network settings->Network operators and either select "Select automatically", or pick one from the list.

Just a suggestion but maybe a whole different updated ROM flash might do the trick
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

KangKilla said:
Just a suggestion but maybe a whole different updated ROM flash might do the trick
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Like using a sledgehammer to kill an ant! :laugh: That should work as well.

Lmao I know but sometimes its just what's up. He didn't mention the ROM he's using. If he's that worried about this then its definitely worth a try. Like I said, just a suggestion. No need to slay ants over it
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

efrant said:
APN settings are only for data. They do not impact signal.
Click to expand...
Click to collapse
You are right, misread his whole first post.
Maybe it's time to cut back on the coffee until JB comes to save the day
Swiftkey'ed on my CM9 Galaxy Nexus

Hi guys,
So I am still having this problem, but an interesting thing happened. I decided to stick the sim card of my gf (she uses another carrier which supposedly uses the same infrastructure as my carrier) and I had full coverage. After that I changed the sim again and had coverage on my line, but after a couple of hours of bad coverage it just never found signal again.
So what on earth could possibly be wrong and what can I do to solve this problem?
I would consider a new ROM, but this doesnt seem to be the problem.

axjacosta said:
Hi guys,
So I am still having this problem, but an interesting thing happened. I decided to stick the sim card of my gf (she uses another carrier which supposedly uses the same infrastructure as my carrier) and I had full coverage. After that I changed the sim again and had coverage on my line, but after a couple of hours of bad coverage it just never found signal again.
So what on earth could possibly be wrong and what can I do to solve this problem?
I would consider a new ROM, but this doesnt seem to be the problem.
Click to expand...
Click to collapse
Maybe you should contact your carrier and get a new SIM or check if there is any known problems in your area.
Swiftkey'ed on my CM9 Galaxy Nexus

[Q] 3G not working

Hey guys I dont see the 3g signal on my phone. I guess i went into ##DATA# and messed something without my knowledge. Now the 3g symbol does not at all come up whatsoever. Advice appreciated. Thanx a lot.!

ankurcshah said:
I guess i went into ##DATA# and messed something without my knowledge.
Click to expand...
Click to collapse
You "guess" you messed around with something???
Call Sprint
Sent From My Galaxy10. 1 Class Starship...

I am actually from India! Using it on a indian service provider. About the guess yeah, I dont remember actually if i changed anything. I even flashed the phone to stock/custom rom. No use

Flashing stock ROM wont reset those settings. You will need to reset the activation on a stock ROM. I'm not sure of the code for that but its been in the treads a few times....
Which would be ##786#.....

Still no avail brother!

ankurcshah said:
I am actually from India! Using it on a indian service provider. About the guess yeah, I dont remember actually if i changed anything. I even flashed the phone to stock/custom rom. No use
Click to expand...
Click to collapse
Is this device compatible with the 3g service your provider uses?

Yes it is. I have been using for quite a some time now.

Having the exact same issue. Not sure what caused it or how to fix it. I too am on stock rom

ankurcshah said:
Yes it is. I have been using for quite a some time now.
Click to expand...
Click to collapse
Have you contacted your cellular provider? If you changed some settings, most likely calling your provider to get the right settings will be your best course of action.
Sent From My Galaxy10. 1 Class Starship...

Alright,so over here in india we use nvitems (dump files) for evdo Else known as 3G. I tried everything but it doesnt seem to go back. Any way to make a phone go back TOTALLY to its 1st stage? When it came out when it was shipped? As in the whole parameters to be new. I tried flashing new parameters,prl, No avail. Just cannot see the 3g logo.

Any help?

We are probably going to need a little more info than that if you want help...
Sent from my SPH-D710 using xda app-developers app

brooksyx said:
We are probably going to need a little more info than that if you want help...
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Agreed... ankurcshah you've given us very little to go on here. You have to remember that the ET4G your using is mainly a US/Sprint base device.
Have you rooted, installed a rom/moden... Help us out some so we can help you out.
ankurcshah said:
Alright,so over here in india we use nvitems (dump files) for evdo Else known as 3G. I tried everything but it doesnt seem to go back. Any way to make a phone go back TOTALLY to its 1st stage? When it came out when it was shipped? As in the whole parameters to be new. I tried flashing new parameters,prl, No avail. Just cannot see the 3g logo.
Click to expand...
Click to collapse
As far as I know and someone else has already posted this... You can do a factory reset to bring the os back to a "out of box" state. But this in no way will effect, change or the dialer or radios. Those settings are set by the carriers.
ankurcshah said:
Hey guys I dont see the 3g signal on my phone. I guess i went into ##DATA# and messed something without my knowledge. Now the 3g symbol does not at all come up whatsoever. Advice appreciated. Thanx a lot.!
Click to expand...
Click to collapse
Again, this is your original post. In it you clearly state that you "guess" you did the "##DATA# dialer code and" messed something with out my knowledge".
After rereading your original post again I'm thinking it really should have read this way...
"I went into ##DATA# and messed with some of the settings and didn't really know what I was changing." See the difference???
Those setting in "##DATA# or set by the carriers... They are there to tell the radios on your device how to communicate with and what frequency to use for the towers your cellular providers uses.
I'm going to assume that when you got your ET4G you had to contact your cellular provider to get it setup to use their service, right???
Questions:
1. If not how did you get it setup to see their towers???
2. Did they (provider) give you some kind of codes to enter in the ##DATA# settings???
3. If they did, do you still have them and have you tried that???
I've said this before... I really think you need to contact your provider and see if maybe they can re provision your radios.
Sent From My Galaxy10. 1 Class Starship...

SouthPhilly said:
Agreed... ankurcshah you've given us very little to go on here. You have to remember that the ET4G your using is mainly a US/Sprint base device.
Have you rooted, installed a rom/moden... Help us out some so we can help you out.
Yes,currently on el29 one click. but stock kernel without cwm
As far as I know and someone else has already posted this... You can do a factory reset to bring the os back to a "out of box" state. But this in no way will effect, change or the dialer or radios. Those settings are set by the carriers.
Could you link me?
Again, this is your original post. In it you clearly state that you "guess" you did the "##DATA# dialer code and" messed something with out my knowledge".
After rereading your original post again I'm thinking it really should have read this way...
"I went into ##DATA# and messed with some of the settings and didn't really know what I was changing." See the difference???
Those setting in "##DATA# or set by the carriers... They are there to tell the radios on your device how to communicate with and what frequency to use for the towers your cellular providers uses.
I'm going to assume that when you got your ET4G you had to contact your cellular provider to get it setup to use their service, right???
Nope, I just needed the dump file for the 3g to work, 3g works on my dad's phone and it doesnt on mine. I use the same dump as his. Still? Wierd
Questions:
1. If not how did you get it setup to see their towers???
I just flashed a prl
2. Did they (provider) give you some kind of codes to enter in the ##DATA# settings???
nope, I had set the msl to 000000
3. If they did, do you still have them and have you tried that???
They are not aware of such a thing also.
I've said this before... I really think you need to contact your provider and see if maybe they can re provision your radios.
I tired they don't understand "reprovision radios"
Sent From My Galaxy10. 1 Class Starship...
Click to expand...
Click to collapse
As you were saying about the out of box state? Could you elaborate a bit more on that. I just need to reset the data settings of the phone to the state in which the phone had come. In the sense as in out of box.
Answers are in bold.
Thanx for your help

ankurcshah said:
As you were saying about the out of box state? Could you elaborate a bit more on that. I just need to reset the data settings of the phone to the state in which the phone had come. In the sense as in out of box.
Answers are in bold.
Thanx for your help
Click to expand...
Click to collapse
The reset I mentioned is a "factory reset" ... But like I already posted... It will only delete all of your user data and reset settings like wifi, email passwords...
It won't reset the radios...
If you had already flashed these files to get your phone working when you got it, Don't you still have them???
Sent From My Galaxy Class Star Fighter...

My 2 cents here, not completely sure but I saw this today.
Know your msl
>go to phone enter ##data#
>Click edit
>Then enter msl
>click other
>go into Korea mode
>click on India mode, press okay.
>reboot
Sent from my SPH-D710 using Tapatalk 2

Tried out! No changes takes place. Gonna take the qcn of a friends write it onto my phone,change imsi,meid,mdn and check.
Sent from my SPH-D710 using Tapatalk 2

Were u mentioning the one click thingys? Yes i have tried out every damn thing now.
Now on ics still no 3G
Sent from my SPH-D710 using Tapatalk 2

The one click restore files are for Sprint phones so I doubt if they would work for you

Hmmm,all right
Sent from my SPH-D710 using Tapatalk 2

Stuck on Edge!!!

Hello everyone,
I wonder if anyone can help me. I have a rooted Samsung Galaxy S III from T-mobile, running CM 10. Since last week I've been having trouble with it after I updated the CM 10 rom. For some weird reason I cannot receive calls while I am using my data connection, incoming calls are always sent to voicemail. I tried the ##DATA# code to try to turn off the DDTM mode but later on I read that I cannot access this menu unless I am on stock ROM, I tried to flash T-mobile's stock ROM with Odin but the process kept getting stuck with no progress at all.
I kept looking and I came to the idea that my problem was my IMEI, which when I checked, was 0. I restored my IMEI and now I have my IMEI number and everything but I my internet connection is still stuck on EDGE and I cannot receive any calls. I even tried updating my modem I tried several different T-mobile modems for my phone and none of them can take my phone off EDGE.
then I tried changing the network type with the *#*#4636#*#* the actual network type option that it has selected is WCDMA preferred, I went ahead and selected LTE/GSM/CDMA but that option doesn't stay!!! I am going nuts here!!! I want my 4G connection back, I have tried everything with no luck at all.
I just hope that somebody out there has gone through this and found a solution cause I am losing all my hope and I don't want to take my phone to T-mobile since I cant flash it back to stock rom.
If anyone here could please help out I will be extremely thankful.
Thanks in advance.

Did you try Post 3 of the IMEI recovery thread?
Sent from my SGH-T999 using xda premium

Thetenthdr said:
Did you try Post 3 of the IMEI recovery thread?
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
^This^
It's more to it than simply injecting your IMEI. You have to inject it, back it up, and then restore it.

Well i had to enter my IMEI manually to generate a .txt to write it to my phone because the one i had before was corrupted cause it was 0.
Was thete any other step that I skiped doing?
I figure i wouldnt make a back up before injecting my IMEI manually cause i didnt have one.
Am I screwed??
Sent from my SGH-T999 using xda app-developers app

Yes, you skipped two complete steps. There's three steps, again, Injection, Backup, and then Restore. Go back to Peoplearmy's thread and follow it completely.
Sent from my Galaxy Nexus using xda premium

Look at all these results..
http://bit.ly/Ws08di

Towle said:
Look at all these results..
http://bit.ly/Ws08di
Click to expand...
Click to collapse
Stop doing that ****, seriously.

Don_Perrignon said:
Stop doing that ****, seriously.
Click to expand...
Click to collapse
I've shown him an easy way to find answers to future questions he may have. Now stop telling me what to do.
But on a serious note, the search function on XDA works extremely well. If I ever need to find something, I type it in that box and 95.7342% of the time, it pops right up in front of me.

Search is a beautiful thing.
Sent from my SGH-T999 using xda premium

I have actually searched quite a lot since I've been having this problem from a few weeks now. Only thing is that whenever i find a possible solution i doesnt fix it since it seems it is something else. I am trying now to do peoplearmy's post to see if this one does the trick. The first time i put manually my IMEI i did it following a different thread so I hope this one fixes the problem.
Sent from my SGH-T999 using xda app-developers app

Poeplearmy's post is the industry standard for IMEI recovery. Just remember that there are more steps than just the first post. I'm sure you'll get it worked out.
Sent from my SGH-T999 using xda premium

I did this method, I cant actually check if my 4g is working since unfortunately at home I always get EDGE so I will check later when I go out.
I have a question, I did check on the dialer my IMEI but I saw a picture of somebody on peoplearmy's thread and their IMEI included a /0# at the end and I realized that mine doesn't.
Does the IMEI need to have that /#0 at the end in order to work or is it ok? I just want to make sure since I can only check my connection speed when I go out.
thank you

Rocksee said:
I did this method, I cant actually check if my 4g is working since unfortunately at home I always get EDGE so I will check later when I go out.
I have a question, I did check on the dialer my IMEI but I saw a picture of somebody on peoplearmy's thread and their IMEI included a /0# at the end and I realized that mine doesn't.
Does the IMEI need to have that /#0 at the end in order to work or is it ok? I just want to make sure since I can only check my connection speed when I go out.
thank you
Click to expand...
Click to collapse
As far as I know, your IMEI should just be a simple number. If the IMEI you're seeing on the software matches your IMEI on the back of your phone, then you're good in that department. If you also followed the steps for the backup and restore. Then you're good. The backup is important, because it allows for the restore. The restore has some (stuff) that adds all of the settings back to allow you to connect to 4G. Does that make sense? It's a three-step process when you lose your IMEI for the first time.
Inject, backup, restore. It has to be done, because the restore really does add something back to make it work properly.
Should you lose it again in the future, you can simply just restore and be right back.

Don_Perrignon said:
As far as I know, your IMEI should just be a simple number. If the IMEI you're seeing on the software matches your IMEI on the back of your phone, then you're good in that department. If you also followed the steps for the backup and restore. Then you're good. The backup is important, because it allows for the restore. The restore has some (stuff) that adds all of the settings back to allow you to connect to 4G. Does that make sense? It's a three-step process when you lose your IMEI for the first time.
Inject, backup, restore. It has to be done, because the restore really does add something back to make it work properly.
Should you lose it again in the future, you can simply just restore and be right back.
Click to expand...
Click to collapse
well then I guess I am ok, I followed every step, I will check my connection when I move from this location. Thank you for your response.

I just tested my connection and now i have full 4G!!!! At last thank you all for your answers you hrlprd me a lot!!!!
Sent from my SGH-T999 using xda app-developers app

I'm having the same issue (IMEI is reinjected but still can't connect to 4g, NO BACKUPS of ESN or NV) but the links in the thread are all dead can someone help me out and point me in the right direction ?? I have been searching for days and right when I think I have a post that has the answer, the link that solved it all for them is dead!
Can someone please help? I need 4g for work and cant keep eating at McDonalds for wifi all the time.-)
Thank you.

massiveloop said:
I'm having the same issue (IMEI is reinjected but still can't connect to 4g, NO BACKUPS of ESN or NV) but the links in the thread are all dead can someone help me out and point me in the right direction ?? I have been searching for days and right when I think I have a post that has the answer, the link that solved it all for them is dead!
Can someone please help? I need 4g for work and cant keep eating at McDonalds for wifi all the time.-)
Thank you.
Click to expand...
Click to collapse
Check your PM's.

DocHoliday77 said:
Check your PM's.
Click to expand...
Click to collapse
Thanks for the assist Doc!! You are the man!!
ALSO, big thanks to MotoDefier for assisting as well! the people on these boards are awesome !!

DOC can you assist me as well? I restored my IMEI but I need help getting data back.

A very weird problem.. I need some help with!

Ok, So I have an Epic 4g flashed to Cricket, I have made everything work(mms,test,talk,ect.) I have it on Android 4.1.2. My problem is I only get 3G and its not very dependable. I live in Phoenix, A.Z. Anyone have any ideas on what to do?

Did you change anything with the phone recently? Did you recently move homes?
Sent from my SPH-D700 using Tapatalk 2

Ihave not moved at all....
Sent from my SPH-D700 using xda app-developers app

shaunfrazier said:
Ihave not moved at all....
Sent from my SPH-D700 using xda app-developers app
Click to expand...
Click to collapse
Ok, and what of the first question.

How do I fix the data problem.. I can't just use 3g it not stable in phx. Goes in and out a lot even sitting still and not moving the phone.
Sent from my SPH-D700 using xda app-developers app

shaunfrazier said:
How do I fix the data problem.. I can't just use 3g it not stable in phx. Goes in and out a lot even sitting still and not moving the phone.
Sent from my SPH-D700 using xda app-developers app
Click to expand...
Click to collapse
Look, I'm trying to assist you. If all you are going to do is plead for help over and over again without providing answers, then I cannot help you.
Have you done anything to the phone since you last had stable connections?

nikon120 said:
Look, I'm trying to assist you. If all you are going to do is plead for help over and over again without providing answers, then I cannot help you.
Have you done anything to the phone since you last had stable connections?
Click to expand...
Click to collapse
I think he's implying that that's how it's always been, or possibly that he has done all of this within the last few days. However long it's been, to me it doesn't sound like a recent issue that has cropped up.
Just my obversvation though. Unfortunately that's all the help I can offer heh

Burban502 said:
I think he's implying that that's how it's always been, or possibly that he has done all of this within the last few days. However long it's been, to me it doesn't sound like a recent issue that has cropped up.
Just my obversvation though. Unfortunately that's all the help I can offer heh
Click to expand...
Click to collapse
Well, you're reading into what he typed; which means that he wasn't clear. lol

nikon120 said:
Well, you're reading into what he typed; which means that he wasn't clear. lol
Click to expand...
Click to collapse
haha Definitely no argument there! :highfive:

So hears what happen, I bought this phone 2 months ago I rooted the phone than flashed acouring to a tutorial I found on this site. (http://forum.xda-developers.com/showthread.php?t=780742)
After that I instealed the Provision Rom
(http://forum.xda-developers.com/showthread.php?t=2129233)
After that I flashed the Cricket mms fix found here
(http://forum.xda-developers.com/showthread.php?t=1649508&highlight=cricket+mms)
So I did not notice the 3g to 2g/1g switch because most of the time I am around wifi.. I have changed it since then or added anything.. I hope this is a better disription...
thanks

shaunfrazier said:
So hears what happen, I bought this phone 2 months ago I rooted the phone than flashed acouring to a tutorial I found on this site. (http://forum.xda-developers.com/showthread.php?t=780742)
After that I instealed the Provision Rom
(http://forum.xda-developers.com/showthread.php?t=2129233)
After that I flashed the Cricket mms fix found here
(http://forum.xda-developers.com/showthread.php?t=1649508&highlight=cricket+mms)
So I did not notice the 3g to 2g/1g switch because most of the time I am around wifi.. I have changed it since then or added anything.. I hope this is a better disription...
thanks
Click to expand...
Click to collapse
I don't use a MVNO, so I am not sure which regular troubleshooting steps would clear away your carrier settings. (I'm thinking using EFS Clear in Odin is the only concern, but that is sometimes needed for modem issues.)
Based off that rom's thread, you must be using the NS4G modem. Since your issue is with connectivity:
Perform a CWM backup of your current setup.
Flash an Epic modem rom and FC09 modem. (You can flash the modem using CWM. There's a thread in the dev forum w/ links.)
Try testing connection again.
I'd normally tell a Sprint Epic user to boot into FC09 multiboot and update profile & PRL, but I don't even think the PRL update would work for you. I'd then say, start from scratch by using Odin to flash FC09 with repartition checked. If they still had issues with connectivity, then I'd recommend using EFS clear in Odin when reflashing either just the FC09 modem or the entire FC09 tar.
Because you are on another carrier, I'm weary of suggesting you use Odin so quickly. If you haven't already, dive into your phone settings and document your carrier specific info you changed to get it working. This way, if you end up doing something that resets your original changes, then you can reconfigure it.
So give the suggestion that is listed above a try.

Since I'm very much a noob myself, I'm only tossing this out to possibly trigger an idea for someone else: Would perhaps the issue lie in the Build.prop or one of those similar files? I've poked around so many of them I can't remember which hold what tidbits of info... I know the Build.prop holds most of the primary carrier info, but I seem to recall another one that stored a bunch of info for a bunch of the other carriers (though that might have been for roaming and may not be of any help here).
*shrug* Otherwise, I's gots nothin' lol

[Q] i747 3G/4G issues on T-Mobile ... looking for UPDATED answer

Ok, let me start by saying I've been searching for the better part of today, and finding answers all over the place depending on how old they are or all kinds of assumptions.
Here's my situation: I have an unlocked AT&T Galaxy SIII i747). I'm running AOKP 4.2, but I'm willing to run something else if it helps me. I have a very temperamental data connection - sometimes it goes to 2G, many times nothing at all. VERY seldom does it see H+. 4G would be lovely, but I'm just trying to even get reliable 3.5G. I use a GV number as my "primary cell phone number" so a working data connection is essential even to be able to make outbound calls.
I live in NYC, which I'm pretty sure has been "refarmed" for 1900/2100 HSPA+. I've looked online for T-Mo APN settings, and have tried several - none seem to fix the problem.
Can anyone recommend what I should be looking at to fix the data issues? Do I need to reflash a different modem? Secret APN settings that only XDAer's know? Do a raindance on the 17th day under a full moon and pray to the moon gods?
Again forgive if this has been answered before, but there are about 9000 different responses to this question and things seem to be constantly changing, including the recent refarming of HSPA+ 1900 in my area. I'm just trying to get a phone that works reliably.

Follow the instructions here
http://forum.xda-developers.com/showthread.php?t=1771021
Sent from my SGH-T999 using xda premium

Whoareyou said:
Follow the instructions here
http://forum.xda-developers.com/showthread.php?t=1771021
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
I don't know that I would have EVER found this trying to look for it all by myself, but I think this is EXACTLY what I was looking for! Thanks SOOOOOOO much!

Almost there, but I can't seem to get past this hash error on the PDA file. Tried redownloading several times, both individually and in the zip file, but no success. Anyone have a known working copy that they'd be willing to host somewhere?

rockin982 said:
Almost there, but I can't seem to get past this hash error on the PDA file. Tried redownloading several times, both individually and in the zip file, but no success. Anyone have a known working copy that they'd be willing to host somewhere?
Click to expand...
Click to collapse
Use the dropbox mirror
Sent from my SGH-T999 using xda premium