[Q] 3G / Mobile data not functioning at all - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

Hi All,
I have been using this CM9 KANG since it first started from this thread: http://forum.xda-developers.com/showthread.php?t=1461240
All has been fine until this morning when i couldn't connect to 3G. This has happened once or twice before, but a reboot fixed my connection problem.
Things i have tried so far:
- Reboot (several times)
- Wiped data and cache
- Tried a different SIM card
- Tried original SIM card in my work-issued Blackberry (all worked fine)
- Gone back to previous recoveries that worked fine before
I can deduce that it's not my mobile operator. I am unfortunately not able to try a different service provider at this point.
Can anybody please suggest something that i might have missed?
We do not have a fully/widely developed wi-fi infrastructure in South Africa, so i rely heavily on my 3G.
Your assistance would be highly appreciated.

APN settings?

Related

[Q] Wifi suddenly not working on Cyanogenmod 7

Hi all! I've recently installed cyanogenmod (probably 4 weeks now), and I am loving it.
Everything seems to be working fine, then a few days ago my Wifi couldn't detect networks anymore.
I tried rebooting and to no avail.
Any advice would be most appreciated!
Thanks!
If it is only having problems with one Wifi network, chances are it's the network. (reset password/restart router/change channel the routeris on/or encryption)
If it happens with several wifi networks. Back everything up and reflash with that ROM again.
EDIT: Read this too
http://forum.xda-developers.com/showthread.php?t=1176450
You can try install everything again or try install a file wifi fix...
do you have a link for the wifi fix?

[Q] No Network Data & Powering off itself

Hello Android Devs. Looking for your help again and thanks for helping.
I have two problem after flashing rom;
I flashed theese roms:
http://forum.xda-developers.com/show....php?t=1061889
http://forum.xda-developers.com/show....php?t=1021383
Problems are same for theese two problem.
1- There is no mobile network data. When i want to make call, it says, "mobile network not available".
I did the apn fix (set to default, reset etc.) No working.
I opened *#*#4636#*#* and do somethings explaning under "fixing network problems" threads.
Theese all not working.
I'm looking for help. This problem is not about sim card or operator(t-mobile etc.). Because a lot of people have same problem from all world. Every thidsd people using different gsm operators. So, fixing method with sim cards not working. This problem is about rom. Because, when downgrade to Android 2.1 or 2.2, there no problem. Please help.
2- Second problem is powering off it self every 15 minutes. All theese two roms have this problem. Not every time after 15 minutes. Sometimes after 10 minutes, sometimes after 40 minute (after boot).
2.1 and 2.2 also don't have this problem.
Please help.
There is a lot people on world using CyanogenMod. And they are flashing this rom with same method with rom manager.
Why this rom have problem about mobile network and powering of.
Thanks.
have u tried odin to stock?

[Q] Wifi Connection Issues, cm10.1 CWM

I have looked around for a couple of hours and cannot find any answer to this.
I have just got my S3 back from being repaired after Sudden Death, and have rooted using Odin and CWM Touch 6.0.2.8, and flashed the latest cm10.1 Nightly (Currently 17022013)
I am able to connect to the mobile network (3 UK) and get a good H+ connection.
I cleared all of my saved wifi networks, and try to connect to my home connection. It Accepts the WPA key, and gets to 'Obtaining IP Address...' and does not go any further.
I have tried now on several wireless networks including insecure ones, and it will not connect.
Please help if you've had anything similar, or if I need to provide more information, a log of some kind
I have installed the latest nightly from CM10.1 and the issue is still present. Which makes me think that it is not a CM issue.
I will be re-flashing the stock image of the phone to confirm this shortly. Will post results
http://forum.xda-developers.com/showthread.php?t=2152159
this worked for me but i found it easiser to swap the folder before instaling rom

[Q] Cellular Data not working no matter ROM installed

Hello powers that be! I'm a total noob and really wish someone would help me. I currently using an XT910 which was a gift from a friend in China. For some reason my cellular data (both 2G and 3G) won't work on any custom ROM. It only works fine on the Stock ROM slot. I've tried Mokee, SlimKat, LiquidSmooth and MIUIv5.
Whenever i go to the mobile network settings, i see the correct APN is selected but it just won't connect or even show the 'E' or 'H+' icons. I'm currently in Nigeria but i doubt if its a location issue.
PLEASE HELP.. I don't have access to Wi-Fi so mobile data is all i've got, Thanks in advance!:fingers-crossed:
Seriously? No one? Come on guys
Change preferred network type under mobile network????
Sent from my XT912 using xda app-developers app
I have similar observation. After first boot everything is ok. Phone connects perfectly. Next I reboot phone and I can see that phone is connected for 1s not connected for ~20s (looped). What I noticed: additionally Airplane mode switches on and off. All of this without any touch to phone.
I observed this in every KK ROM I tested. There were a few times that phone worked properly after restart.
I always install new ROM on SS Slot 2 that is wiped (system, data, cache, dalvik) before installation.
Today I installed latest MoKee nightly (02.19) - result as described above.

Problem:Cellular Network in Oneplus X

So,
I bought this phone on the day it was launched, its been more than 3 months and had no issue with the device. I rooted the phone , experimented with Xposed and other apps but for the past few days i was experiencing this strange problem. Cellular network was not running on my phone, i changed the sim, swithed the devices on/off several times , did everything i could do in the os, changing the mode to 3G from LTE and vica versa, etc etc .. but still no luck. The cellular network sometimes comes and goes. Then i opted for last resort which was to factory reset the phone, after resetting it the cellular network worked but i don't know if this is a permanent solution. If you have anything to add please share.
Regards,
Saransh
Sorry nothing much to share but i suspect you install some apps or did something to your rom so the network screwed. My suggestion is you nandroid backup every week (at least) so you can revert back when something happened.
Tried factory reset
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
SaranshVfx said:
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
Click to expand...
Click to collapse
Maybe exposed screwed something. Get a microsd card with whatever rom you want in it. reboot to recover and try full format. insert the microsd after then flash a rom. see if it works
Rooted my phone with sudamod rom, Everything is working fine.

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