Develop Bugs

No Mobile Data - Help please!

Hi All,
I got my Note 2 today, and have run into a problem already
Mobile data (HSPA+) was working when I first got the phone and used it between the shop and the way home.
When I got home, I switched over to wifi to download things.
I then flashed CWM from the cwm-root-note2.tar.md5 file in Dr Ketan's guide using PC Odin.
Then, I flashed Omega v3 via CWM.
All went without a problem.
I was still on wifi and downloading and installing all of my apps.
After a while I turned off wifi and I noticed that I wasn't getting any mobile data connection. I was getting 3 or 4 bars of mobile signal, but no 3G, H or H+ symbol to indicate mobile data.
I messaged a nearby friend on the same carrier and he said his was working fine. So, I figured I must have messed up the mobile network settings,
I checked the APN settings and they were blank, so I put them back in manually.
Still no data connection,
I went into CWM and wiped cache, dalvik and user data.
Still no good.
I downloaded the stock XXALJ1 ROM for Thailand (where I am) and flashed that, did another 3 wipes, but still no luck.
I tried doing a factory reset from the settings menu. But still no joy.
I put the SIM card into my Note 1 and it got a H+ straight away and data was working fine.(when the shop cut it down, they made a nice neat job of it, so the excess makes a decent micro sim holder). So, the network and SIM card are OK.
I noticed that when I first got the phone, the boot screen said "N7100" under "Galaxy Note II".
Now, it doesn't. I'm not sure when it changed.
I also noticed that when I do the under/factory resets, there are still some settings that aren't reset, For example, I set it to WCDMA only to see if that helped and then when I did a factory reset, it was still set like that, rather than the default "auto" that it originally comes with.
Unfortunately I didn't do a nandroid backup, as my phone came with XXALIH (without the multiscreen), so I figured I'd updated to LJ1 first.
Does anyone have any suggestions of what I can do?
Is there a full wipe ROM, or a way to reflash the bootloader and ROM?
It's 3am now, so I need to go to sleep, but this is annoying the hell out of me.
Thanks,
Rich

Carrier please?

wonsanim said:
Carrier please?
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True Move H in Thailand.
I don't think it's a carrier issue, as I can put the SIM into my Note 1 and get H or H+ data connection straight away.
Also, I compared the APN settings and I have the exact same settings in the Note 2 and Note 1.
Mobile data was working on the Note 2 when I first got it.
Thanks,
Rich

Turn mobile data on in settings/data usage.

I doubt that his data is turned off in the settings is the problem since he already stated that he tried resetting to factory settings.
I'd suggest simply using odin to reflash J1 onto the phone and start from scratch again. This is why the devs always remind people to do a nandroid backup. In case of situations like this.
Sent from my GT-N7100 using Tapatalk 2

Thanks. Yes, Mobile data is ticked. I tried toggling that early on in case it just wasn't connecting properly or something.
I've tried flashing the stock J1 a few ties, but no joy.
It doesn't seem to do a full install, as the circle battery mod I installed previously is still there after flashing stock J1...
I'm downloading a stock XXALIE for Thailand at the moment and will try that.
It's still got 30 mins to go, and I have to leave for work soon! So, I might have to spend the day relying on wifi when I can get it
I'm wondering if the change in boot loader has anything to do with it. (Originally had "N7100" on the boot screen and now I don't, just "Galaxy Note II")

maybe APN settings are wrong? I'm from sri lanka, and I had to add an apn for mobile data to work.

OK, I finally fixed it. Here is what I did (in case anyone else has a similar problem)
Flashed stock LJ1 via odin
Downloaded Galaxy S/S2/S3 CSC
Reset my CSC to THL
Now when it restarted it picked up mobile data signal without me doing anything to the mobile network settings.
I reflashed Omega 3 and lost mobile data again. I tried the Galaxy CSC app, but it says there is only 1 CSC.
So, I went back to stock Thai LJ1.
This time I got an OTA update straight away. After that installed I noticed the boot screen had changed back to showing GT-N7100 again.
ROM is now XXALJ3 and the modem is DXALJ1
Flashed CWM and reinstalled most of my apps from Titanium Backup.
Everything is still OK.
So, it looks like I can't use Omega ROM because it changes the CSC and I can't change it back to THL.
Is there any way to install the CSC separately after flashing Omega?

GPS Problems

My fiancee and I both have GS3's on AT&T. They're both still stock 4.1.1, neither is rooted.
We're both encountering a really annoying GPS problem. Randomly the GPS will stop working until reboot. Sometimes it will be in the middle of navigation. The lady just says "GPS signal lost" and then it won't lock anymore. Other times it will work for a route or two and then when opening up again it doesn't get an initial lock.
When it stops working there is no longer an ongoing notification with the status of the GPS or the GPS icon at the top of the screen. Maps is somewhat usable for just "directions" when we're in an area that cell tower and wifi AP triangulation works, but that only gets directions pulled up and it's off by several hundred feet.
Every time this happens, if you reboot it comes back to life. I'd rather not root or go the custom ROM route to fix this while we are both in warranty. This is her first Android phone and all I hear is "my iphone didn't use to do that. the GPS always worked".
I came across this thread http://productforums.google.com/forum/#!topic/maps/q24Cq4sQAtc[1-25-false] on Google Groups, but no one really came up with a workable solution. It seemed to happen to at least both VZW & AT&T, but was fixed with VZW's 4.1.2 update.
Any ideas?

I have the same issue with mine. Nothing I've done has lasted. It's very annoying
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I would look into doing a factory reset if that helps. And if you guys aren't rooted may just want look up Odin and stock firmware for your phones and restore with Odin, Odin helps if you're rooted and having gps issues to go back to stock..this option may or may not help
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CYRAXDroid said:
I would look into doing a factory reset if that helps. And if you guys aren't rooted may just want look up Odin and stock firmware for your phones and restore with Odin, Odin helps if you're rooted and having gps issues to go back to stock..this option may or may not help
Sent from my SAMSUNG-SGH-I747 using xda premium
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+1
When all else fails, I would: backup your data, download odin and the latest at&t stock firmware (in Android development section), wipe data in stock recovery, flash firmware in odin, wipe data and cache in stock recovery, reboot.
This fixed my wife's s3. At&t is going to do this if you take it in anyways. If this doesn't work or last, I would return it.

I've tried reloading os. Worked for a few days then stopped.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I don't have much optimism in reflashing with ODIN accomplishing anymore than wiping /data and /cache (via factory reset) would on a non-rooted stock rom.
The /boot and /system partitions are mounted read only. When they were flashed from the kies upgrade from ICS tO JB the stock rom was written to them. So reflashing via ODIN would just be flashing identical data. Am I wrong?

In another thread someone talked about going into samsung service menu to enter a code that has fixed it. I'm going to try this and see if it resolves for me.
http://forum.xda-developers.com/showpost.php?p=39156594&postcount=81

The code works, fixed me on 4.1, now on AOKP 4.2.2, no issues at all with GPS.
I'm a Motörhead and I approve this posting....using Tapatalk 2.

You can try a factory reset from the settings/backup& reset menu. Be warned that this may wipe your internal sd card.

I just tried the code. Noticed att nav updated after. See hoe google nav works tomr.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

[Q] I messed up with Titanium Backup and now it says 4g, but data doesn't work

So I had to get a replacement Note 2 from T-mobile because my first one had messed up sensors or something. When I got the new one I wanted to backup and restore all my apps from the original.I used Odin to flash CF auto root and do a app and system backup. Then I rooted to the new one the same way and did a restore. I apparently didn't read enough about Titanium backup and restored everything including the system stuff.
Now my data doesn't work most of the time. Specifically when my phone says 4g, no matter how many bars, nothing has network access. I can make and receive calls and text messages although calls have been very spotty with reception. However if I have 4g LTE signal then everything works great. Can anyone suggest a fix? I flashed the stock rom again and reset APN settings to default, nothing is different. Side note, I was able to reset flash, unroot and return the old phone to T-mobile. Any help is greatly appreciated.
Update:
I noticed that I can get text messages when mobile data is turned off. Not sure if that means anything.

Do factory reset and wipe data. May be solve you problem.
May sure you have flashed stock rom with same phone model.
Sent from my GT-N7100 using Tapatalk 4

MBariya said:
Do factory reset and wipe data. May be solve you problem.
May sure you have flashed stock rom with same phone model.
Sent from my GT-N7100 using Tapatalk 4
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I did that and it is still the same. Someone has to have seen this issue before. I can't be the only one who has messed up with titanium backup.

no signal after flashing rom

i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!

ohaai said:
i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!
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Aww anyone?

ohaai said:
Aww anyone?
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just a suggestion, but try rebooting your phone again. this happened to me before and i got freaked out but a reboot has fixed this on a few occasions. running a flashed rom just fine right now.

ohaai said:
i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!
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I believe you need to do a factory reset. Backup your data first!
Sent from my SGH-T999 using XDA Premium 4 mobile app

The first thing to troubleshoot you should do is flash back to a rooted stock rom and make sure the data is working there. If so this will rule out any sort of hardware problem. You didn't say whether or not you did but you can also try fully wiping the phone (dalvik/cache, system, and data), re-download the rom incase you had a bad one the first time and reflash. Other than that check that maybe check the apn settings.

Yup I ended up doing that last night..im back on the stock root injected rom. So im still rooted and network now works! So im glad. How would I flash a rom without losing the network this time?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

ohaai said:
Yup I ended up doing that last night..im back on the stock root injected rom. So im still rooted and network now works! So im glad. How would I flash a rom without losing the network this time?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Now that you have flashed back to stock a full wipe has been done in the process. At this point all you can do is flash it and see, but as i said i would redownload if you plan on using whatever rom it was you mentioned in the OP. I would also do a full nandroid backup to save the pain of using odin incase it doesn't work. I imagine the problem was with lingering files/fragments from multiple flashes that were causing the problem, in any case whatever the problem happened to be it was software related.

K will do. Its just weird because the md5 matched and everything..but I will for sure download the rom and gapps again. Thanks for the tips!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

well, i finally got the service to work after flashing a rom. it still remains a mystery to me tho, i used to always use the illusion rom everyday, for months. i decide to flash the same exact one but no service, i download it a couple more times and still no service after flashing about 3 or 4 times. i tried a completely different rom and the service is active. i dont understand why and cant figure out what is so different this time hah. o well, im just glad its all working now even though its with a different rom. thanks for the help guys!

ok, im back =[
i was using the carbon rom with no problems, it was working great, but just a half hour ago i was listening to music and texting (i always do this), and then phone just turned off. I tried to reboot it but it wont! it always shuts off while booting. i made it to CWM, but it turns off while in CWM. i also made it to download mode, which led me to assume that the phone is not bricked, but it doesnt stay on download mode, it just turns off randomly. i figured maybe it was battery, so i tried another, and no change! does anyone know what the issue is? i cant figure out how to keep the phone ON, or why its not staying on.
btw, i got it to boot completely just once, and it was acting up still. any ideas? please help
Thanks in advance

dntesinfrno said:
The first thing to troubleshoot you should do is flash back to a rooted stock rom and make sure the data is working there. If so this will rule out any sort of hardware problem. You didn't say whether or not you did but you can also try fully wiping the phone (dalvik/cache, system, and data), re-download the rom incase you had a bad one the first time and reflash. Other than that check that maybe check the apn settings.
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Already flashed back to backed up stock rom but still no signal. But when I use the MIUI rom, it has signal.

driht said:
Already flashed back to backed up stock rom but still no signal. But when I use the MIUI rom, it has signal.
Click to expand...
Click to collapse
What is the bootloader and baseband version on the phone? Which version of stock are you flashing?

[Q] No Signal after Stock Flash From Odin

Ok. I was on JediX20 not to long ago. I was having problems with my signal. It had completely no signal. I put the phone into download mode and reflashed the stock firmware through odin. It works like a charm except....when I boot the phone up with no sim card...it shows signal strength...but when i put my sim card in and turn it on...it gives me a no signal icon + no mobile network when i try to dial out. I thought it was my sim card and it had gave out so i talked to my phone rep and i switched to a brand new sim card. Same thing happen. The only reason I know its a software and not a hardware issue is because when i go to settings, back up and reset, and i go through everything to reset it. The icons for data and signal appear just before it cuts off. Im at a loss of what to do. Any Advice?? or a Thread someone could point me too?

IMEI or Baseband available?

Did you flash the correct firmware ?? (have to ask )..
And once your Odin flash was complete ...did you boot into recovery and wipe all data and caches ??
It sure sounds like you're running into an incorrect APN on boot...
As mentioned above ...does your phone show the correct information ??
Sent from my SAMSUNG-SGH-I317 using XDA Premium 4 mobile app

I didnt wipe data and cache as soon as I flashed through odin. I did after the phone booted up. Maybe ill try that. Thanks.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app