Develop Bugs

[Q] Wifi and data connection issues with CM11-20140122

Yesterday I upgraded my Galaxy W to CM11-20140122 as per the instructions on the developer section of this site. Everything went smoothly and I connected the phone to my home wifi and update and reinstalled all my apps. No problems. Thismorning though, I'm experiencing wifi and data over network connection issues. For some reason, although I can see the wifi networks and I'm notified that there are networks available, I cannot connect to them - even though I could previously! The same thing happens with my mobile network - the network is connected and I can make calls and send texts but I persistently get 'No service' and no data connection.
If anyone has any ideas how I fix this I'd appreciate it? Is anyone else is having the same kind of issues? I was thinking of upgrading to kernel 3.4.80 to see if that solved anything...

ok, so after three hours sat within range of the wifi, suddenly the phone has decide to connect to it (as I wrote the above post - maybe its feeling threatened! ). I wonder if this is going to be persistent behavior or wether it was a 1-off.

The Same Here

ElGzzar said:
The Same Here
Click to expand...
Click to collapse
Interestingly, my wifi seems ok now, but I'm still not getting any packet-data connection. After a recent phonecall I got the message 'No Sim or Sim Error' (although it let me make the call). Then I look at the details under 'About Phone' and 'Status' I get the IMEI number, it lists my phone number as unknown and Mobile Network State as Disconnected. Interestingly, it doesn't seem to be connected to the right network either. I wonder if the packet thing is actually and issue with reading the sim-card?

fix
How did you install the rom ??
I think restarting the phone after switching to 2g fixes the issue
it only happens on wrong recovery options (dirty flash)
use this "clean to install a new rom"
in http://forum.xda-developers.com/showthread.php?t=2557019

nschurch said:
Interestingly, my wifi seems ok now, but I'm still not getting any packet-data connection. After a recent phonecall I got the message 'No Sim or Sim Error' (although it let me make the call). Then I look at the details under 'About Phone' and 'Status' I get the IMEI number, it lists my phone number as unknown and Mobile Network State as Disconnected. Interestingly, it doesn't seem to be connected to the right network either. I wonder if the packet thing is actually and issue with reading the sim-card?
Click to expand...
Click to collapse
I think this issue from the kernel ..

arruted was
theonepharaoh said:
How did you install the rom ??
I think restarting the phone after switching to 2g fixes the issue
it only happens on wrong recovery options (dirty flash)
use this "clean to install a new rom"
in http://forum.xda-developers.com/showthread.php?t=2557019
Click to expand...
Click to collapse
I followed the instructions from this thread: http://forum.xda-developers.com/showthread.php?t=2588495 to install the rom. I used Odin 4.43 to install ancora.ops, then factory reset and cache wipe, then flashed the rom, then reboot (basically). I don't think there was anything wrong with the flashing process, it all seemed to go smoothly...
How do I 'switch to 2g'? do you mean select my preferred network as 2g?

OK, so I flashed the kernal to 3.4.80 and everything went smoothly. Wireless has been behaving (and was before the update), but I am still getting 'No Service' on my mobile connection. I tried setting my preferred network connection to 2G and that hasn't helped. I can probably live with it if wifi is working, but it is a bit annoying... I guess I could try the 'clean install' link.

Have this problem on DarkCM rom too

[Q] Unable to connect to secured wifi networks.

Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp

thestonedphilosopher said:
Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp
Click to expand...
Click to collapse
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:

ludoke said:
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:
Click to expand...
Click to collapse
These are known networks that I have the passwords for.

Same problem on lg g3 6.0...
Saved,secured but not connecting.
any fix for that ?

WiFi issue after ota tab 3 7in SM-T210

Hi all i recently bought a no fault customer returned tab 3 7in SM-T210, Today I received my tab 3 and after the first boot I was offered an update, Build number KOT49H.T210XXBOA3, dated 22 jan 2015 at 110mb.
After the update had finished I was unable to connect to my WiFi, it would say connected but the settings app would freeze sometimes with the message that settings is not responding, if I do manage to get out of the settings I am unable to use the internet as all apps say no connection, even though the WiFi icon is showing as connected. I have also found that changing the screen off time to 1 minute cause's the device to soft reboot ( No Samsung galaxy tab 3 screen / bootloader )
I have tried doing factory reset but that didn't help,
Could flashing the full 828mb stock ROM via Odin possibly fix these issues?
And if I do use Odin to flash stock my warranty should remain?
Sorry for the long winded post, and thanks in advance for any advice given
Sent from my moto g using XDA Free mobile app

plewis1981 said:
Hi all i recently bought a no fault customer returned tab 3 7in SM-T210, Today I received my tab 3 and after the first boot I was offered an update, Build number KOT49H.T210XXBOA3, dated 22 jan 2015 at 110mb.
After the update had finished I was unable to connect to my WiFi, it would say connected but the settings app would freeze sometimes with the message that settings is not responding, if I do manage to get out of the settings I am unable to use the internet as all apps say no connection, even though the WiFi icon is showing as connected. I have also found that changing the screen off time to 1 minute cause's the device to soft reboot ( No Samsung galaxy tab 3 screen / bootloader )
I have tried doing factory reset but that didn't help,
Could flashing the full 828mb stock ROM via Odin possibly fix these issues?
And if I do use Odin to flash stock my warranty should remain?
Sorry for the long winded post, and thanks in advance for any advice given
Sent from my moto g using XDA Free mobile app
Click to expand...
Click to collapse
Why is t210 so many issue? seriously!?
If one thing i need to clarify that doing any custom modification on the device will spoil your warranty. However if you did firmware stuff from kies will not remove your warranty. I would choose to flash into new firmware by using odin. But if your case you can do a factory reset then followed by kies and see if it is working. If it is not, download stock firmware from the net and flash it with odin.

thanks @Jacker31 for the response, i know about voiding warranty there is no custom software on it YET lol, only just got it out of the box, i am new to Samsung devices so i will do some research into kies, just don't want to void my warranty trying to sort it out.

plewis1981 said:
thanks for the response, there is no custom software yet only just got it out of the box, i am new to samsung devices so i will do some research into kies
Click to expand...
Click to collapse
Kies are easy and ready to use after its installation.
check out this link for more info:
http://forum.xda-developers.com/showthread.php?t=2261153

I don't know if it's the same problem with my wife's tab t210. when you turn on the wifi it connects but around many seconds, the wifi icon is gone. and in settings the wifi freeze. i've done rebooting, restore factory settings but it didn't fix the problem. but when i try it to connect via my phone tethering it connects and the wifi icon stays. i check the tethering settings it was put on wpa2, but on my router it was just on wpa. So i change it to wpa2 and the problem on my wife's tab is gone.

bukog25 said:
I don't know if it's the same problem with my wife's tab t210. when you turn on the wifi it connects but around many seconds, the wifi icon is gone. and in settings the wifi freeze. i've done rebooting, restore factory settings but it didn't fix the problem. but when i try it to connect via my phone tethering it connects and the wifi icon stays. i check the tethering settings it was put on wpa2, but on my router it was just on wpa. So i change it to wpa2 and the problem on my wife's tab is gone.
Click to expand...
Click to collapse
sounds like ur device does not support wpa correctly.

Hi guys, so I installed kies3 but when I click the firmware upgrade button I get this message 'SM-T210' dose not support initializing. even though i had USB debugging selected. I also tried while the device was unplugged by entering the model and serial numbers but got the same response.
If I flash a stock firmware by Odin will the device log it on the flash counter? as it came with a 12 month warranty and i will send it back if i cannot fix it myself.
Sent from my moto g using XDA Free mobile app

plewis1981 said:
Hi guys, so I installed kies3 but when I click the firmware upgrade button I get this message 'SM-T210' dose not support initializing. even though i had USB debugging selected. I also tried while the device was unplugged by entering the model and serial numbers but got the same response.
If I flash a stock firmware by Odin will the device log it on the flash counter? as it came with a 12 month warranty and i will send it back if i cannot fix it myself.
Sent from my moto g using XDA Free mobile app
Click to expand...
Click to collapse
You should send it back because of the warranty, anything could happen (I meant for the warranty) if we do something.

[Q] GT-N5110 Wifi not working after OTA upgrade to Kitkat 4.4.2

I have upgraded from Jelly Beans to Kitkat 4.4.2 via regular OTA upgrade provided by Samsung on my Samsung Note 8" GT-N5110. Since then I am unable to use Wifi on it. My device is NOT rooted and is running on original Samsung software upgraded via OTA.
I have tried to clear cache and then factory re-set as well and still can't get the WIFI button to sometime even select available WIFI networks. So issues I am facing are summarized below"
1. After factory re-set and clearing cache via Power+Vol Up option, when I tried to setup from scratch, WIFI would not turn on at all meaning device would not be able to scan for available WIFI network or would do so but after long time and if it does show available Networks and I select my home network with required security (WPA2) and password, it would show status as " Saved" rather than connecting to this network. The device would not connect to selected network even after multiple tries.
2. When trying to turn wifi on, device would not show "WIFI" button to Green but instead would stuck at "Grey" color for ever unless rebooted and re-tried many times. The grey would turn green when selecting advanced option or tabbing thro' back button but would not scan available networks then. If it would scan thro' Networks, it would just save selected network even with correct security option and password for it.
WIFI not turning on has made this device a piece of junk for any meaningful use. Any suggestions/ help would be highly appreciated. Again please note, my device is UNROOTED and running on original firmware provided by Samsung via OTA upgrade.

Hi XDA Gurus,
Any one can direct me to right section that has solution for this issue if it is a repost? or help me get an answer?
Thanks,
R

Anyone find an answer to this?
I ahve had no luck, same exact issue, anyone have any ideas? thanks

shahrit said:
I have upgraded from Jelly Beans to Kitkat 4.4.2 via regular OTA upgrade provided by Samsung on my Samsung Note 8" GT-N5110. Since then I am unable to use Wifi on it. My device is NOT rooted and is running on original Samsung software upgraded via OTA.
I have tried to clear cache and then factory re-set as well and still can't get the WIFI button to sometime even select available WIFI networks. So issues I am facing are summarized below"
1. After factory re-set and clearing cache via Power+Vol Up option, when I tried to setup from scratch, WIFI would not turn on at all meaning device would not be able to scan for available WIFI network or would do so but after long time and if it does show available Networks and I select my home network with required security (WPA2) and password, it would show status as " Saved" rather than connecting to this network. The device would not connect to selected network even after multiple tries.
2. When trying to turn wifi on, device would not show "WIFI" button to Green but instead would stuck at "Grey" color for ever unless rebooted and re-tried many times. The grey would turn green when selecting advanced option or tabbing thro' back button but would not scan available networks then. If it would scan thro' Networks, it would just save selected network even with correct security option and password for it.
WIFI not turning on has made this device a piece of junk for any meaningful use. Any suggestions/ help would be highly appreciated. Again please note, my device is UNROOTED and running on original firmware provided by Samsung via OTA upgrade.
Click to expand...
Click to collapse
If you don't mind... try odin 3.09, flash philz recovery, factory reset for wipe clean for fresh install option, and boot to downloader. Flash a firmware from sam mobile, or the get a usa version in the development section.
That should flash a clean install after a wipe

LG G3 4G Network Drops

So the problem I'm having with my G3 is that the Network either drops and comes back repeatedly or completely drops and does not return. This only happens on 4G. When I go into network settings and change network mode to 3G it works fine and I get a constant signal all the time.
I have been using Fulmics ROM and I thought maybe that was the issue. But it wasn't.
I tried 3 different sims from three different carriers (Three, EE, O2) on several stock firmwares. (20N, 21C, 30A, 30F).
Each scenario is the same; network drops when phone is on 4G network mode, but its fine on 3G mode.
However, I have noticed that if I leave Wifi OFF allowing 4G data to connect first, then its fine. I can even turn Wifi ON again and the network is stable. I can even turn Wifi and Data OFF and the network is still stable.
But, if I toggle aeroplane mode, where Wifi connects first or where Wifi and Data is turned OFF; I am back to the network dropping.
Also, I live in London UK so there should not be any signal issues. Can anyone tell me why this is happening. I doubt it's software issue as I've tried several firmwares.
Any help is appreciated.

Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..

engmia said:
Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..
Click to expand...
Click to collapse
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.

thufz9585 said:
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.
Click to expand...
Click to collapse
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).

engmia said:
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).
Click to expand...
Click to collapse
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.

thufz9585 said:
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Click to expand...
Click to collapse
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
thufz9585 said:
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.
Click to expand...
Click to collapse
I changed my carrier and got an automatic SMS with configuration for my phone and instructions to save it. I should've known something was fishy when I recieved the "congratulations for setting up" message even before I recieved the actual settings. Anyways 4G was running fine on my new carrier with 32 mbps speed which is okay, much better compared to the same carrier 3G network, however I only had 3 bars of connection so I gussed what the heck, I should save that configuration after all, it might make things better. What a bloody mistake. I lost 4G connectivity and my phone refused to connect to the 4G network, only 3G (just as you describe).
What worked for me in this scenario was wiping the cache and dalvik (not really sure this step is even necessary to be honest, but I was headed for a full rom re-wipe anyway and decided to try with this first), going into the hidden menu and choosing LTE only connectivity (Fulmics Tweaks -> Hidden Menu [or the hidden code for the phone app if you decided to stay on stock, which I dont have] -> Modem Protocol -> RAT Selection -> LTE only. At this step my phone got to the usual 3 to 4 bars of connectiviy but was displaying "Emergency mode only" and no data at all. I proceeded to Settings -> Networks -> More -> Mobile Networks -> Access point names -> Reset to default from the menu. If network mode doesn't change back to GSM/WCDMA/LTE auto automatically, change it back manually. At this point I had restored back my 4G connection and everything is working normally (30-32 mbps connection stationary in my house through a wifi hotspot next to my laptop).
Good luck, I would follow the steps as described just in case. I tried many reflashes before that should've worked but didn't for me. However different things work for different people, hope this works for you and please report back

engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!

waltertakashi said:
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!
Click to expand...
Click to collapse
Glad I could be of help!

engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:

thufz9585 said:
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:
Click to expand...
Click to collapse
Modem 21C should be your answer! Please try with that.

Is anyone still out there
engmia said:
Modem 21C should be your answer! Please try with that.
Click to expand...
Click to collapse
I flashed dummies and get dropped 4g data like this.
I have tot back to stock and didn't help... not Kdz
Haven't downgraded yet to LP yet.
On turborom now.
Can I just flash this modem? Have a link to the 21c modem?
Flash in twrp or send via LG flash?