Develop Bugs

No Data grey signal bars

I was showing off the GN at work tonight and all of the sudden I got a no data connection error. My signal bars turned grey and have been grey ever since.
I've seen the bars show 4g but they remain grey and I get no data whatsoever.
I have searched the forums and the only reason I have found that seems to hold up is a problem with the sim card.
I've turned on and off airplane mode switched to CDMA only (3G), powered on and off many times. I pulled the battery and held down power button for a while... nothing helps.
Anyone have any other ideas besides the sim card?
I can make calls with it... that is all.
Thanks

I still get on via wifi. But am currently experiencing the same problem. Grayed out signal bars ans no mobile data. Have tried turning mobile data on and off, airplane mode on and off, removing sim card and replacing it.... ugh.. Verizon problem I'm guessing.
Sent from my Galaxy Nexus using XDA App

Ok.. It's pretty much a nationwide outage of 3g and 4g on Verizon
http://www.engadget.com/2011/12/21/psa-verizon-users-reporting-data-outages-across-the-us/

Yeah. Just read the thread about it and talked to vzw operator... let's hope this doesn't happen often
Sent from my Galaxy Nexus using XDA App

The most "reliable network" thats why we pay the big $$$

[Q] GALAXY NEXUS network connection type confusion

Does anyone know how to fix this issue? My phone seems to get confused about if it should be connected through wifi or 3g/4g for data. For example, if I am at home and connected to my wifi, then get in the car and leave without disabling wifi, the phone acts as if it does not recognize the 3g/4g connection at all. It will just tell me I have no network connection since I am out of range of wifi. Same happens when I am connected with 3g/4g and I walk/drive by a wifi area and I do not join the network. The open app that is using data will then loose its connection and tell me there is no network connection. Simply disabling my wifi and restarting the app does not work. I often have to reboot the phone or turn off my mobile data signal and then enable it to establish a connection.

Any help would be greatly appreciated.
Sent from my Galaxy Nexus using XDA

I have this problem also, I will have something like streaming music playing then when I am out of range of wifi it dose not go to 3g on verizon. If I don't have any thing using wifi and disable it before going out of range and starting a stream no problem, but when it happens I switch to airplane mode then back and it works fine.
Your not the only one who has this problem.
Sent from my Galaxy Nexus using xda premium

Same here. Not sure what's causing it. I have to go into airplane mode, which itself seems to take ages, and then turn off airplane mode to establish 3g connection.
I thought it may be a mess up from aokp, and after a clean wipe and flash it seemed fine, but then started showing the same behavior , failing to comnect to 3g after exiting wifi zone.
Does anyone have an answer for this problem? Is it a hardware glitch or software or app caused problem?
Any help would be dearly appreciated too!

Known issue in AOSP right now..
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joshnichols189 said:
Known issue in AOSP right now..
Sent from my Galaxy Nexus using xda premium
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Thanks for the info. Glad to hear it doesn't seem like a hardware problem, though I have yo admit I didn't see it on the aokp wikis ... Would you know if it's a problem for an unknown minority our a more general one?
So, I guess, then stock room should be fine? I was only on stock for a few days before flashing aokp. Going back would be a nuisance, but if I can have armless transition from wifi to 3g, then I guest I should -( ...
Any talk on when it may be solved in the aosp community?
Sent from my Galaxy Nexus using xda premium

Where did my 4G go!

I live in area that does not have 4 g so it stays off, however today at airport I tried and no 4G toggle anywhere! Where did it go, I swore when I got s3 I tested 4G but now it's gone? Thanks for help.
Sent from my SPH-L710 using xda app-developers app

BiggieD said:
I live in area that does not have 4 g so it stays off, however today at airport I tried and no 4G toggle anywhere! Where did it go, I swore when I got s3 I tested 4G but now it's gone? Thanks for help.
Sent from my SPH-L710 using xda app-developers app
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Click to collapse
GS3 doent have a 4g "toggle" as you say...but you can make sure its enabled
settings-->more settings-->Mobile Network-->Network mode.
Preferred network mode should be set to "CDMA/LTE/EVDO"
If you have "CDMA/LTE/EVDO" enabled, anytime your in a Sprint LTE area your phone icon will switch from 3g to 4g.

n8te_1 said:
GS3 doent have a 4g "toggle" as you say...but you can make sure its enabled
settings-->more settings-->Mobile Network-->Network mode.
Preferred network mode should be set to "CDMA/LTE/EVDO"
If you have "CDMA/LTE/EVDO" enabled, anytime your in a Sprint LTE area your phone icon will switch from 3g to 4g.
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doesn't it chew up more battery?

bigfamei said:
doesn't it chew up more battery?
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it shouldnt chew up ure bttery at all, as all it does is search the network for 4gLTE and if it doesnt find it, it will automaticly go to sleep and try again like 2 or 3 hours later or periodically as it tells u. .however u do need to have sprint automatic connention left on in order for that work. atleast thats what i got from reading the sprint connection optimizer information it gave me.

Practitioner said:
it shouldnt chew up ure bttery at all, as all it does is search the network for 4gLTE and if it doesnt find it, it will automaticly go to sleep and try again like 2 or 3 hours later or periodically as it tells u. .however u do need to have sprint automatic connention left on in order for that work. atleast thats what i got from reading the sprint connection optimizer information it gave me.
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The optimizer isn't for the LTE. I hate that garbage so I always leave it off. As long as your preferred network is set as stated above, it will automatically switch between them. Side note though, it may switch back to 3g if you don't have a very strong 4 g signal. It likes to be weird.
Sent from my SPH-L710 using xda app-developers app

Sounds like your thinking of a wimax phone. I I had a Motorola Photon and you had to physically turn 4g on and off on it.... I think most wimax 4g phones are that way.
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Do any of the custom ROMS have a toggle for 4g/3g? I live in a 4g area but sometimes the signal isn't strong enough so it goes to 3g. Quite annoying. It would be great to toggle 3g off and force 4g.

So I had s2 before s3, so I assume the s2 was a 4 -g wimax? It had a toggle widget.
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BiggieD said:
So I had s2 before s3, so I assume the s2 was a 4 -g wimax? It had a toggle widget.
Sent from my SPH-L710 using xda app-developers app
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Click to collapse
Correct !:good:

sssqueue said:
Do any of the custom ROMS have a toggle for 4g/3g? I live in a 4g area but sometimes the signal isn't strong enough so it goes to 3g. Quite annoying. It would be great to toggle 3g off and force 4g.
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Click to collapse
Have you tried updating to the new radio? I believe they boosted the power to give slightly better LTE connectivity in those kinds of environments.

There is a way to force LTE on the GS3. I did it with mine so that I could map out the LTE zones with sensorly a bit easier while I was driving over the weekend. The way I was able to do this is you need to have Nova Launcher downloaded and installed.
Once you do this, long press on the home screen and go to "Shortcuts".
Next click on "Activities"
Next scroll down to "IOTHiddenMenu"
Then scroll down and click on "IOTHiddenMenu : HDR1X_Selection"
Doing this will allow you to force LTE only mode. Keep in mind you WILL NOT be able to make any phone calls while doing this. For some reason the GS3 requires the phone to be in LTE + CDMA + EVDO Mode to make calls even if you have a very strong LTE signal.
Another app I would recommend downloading is called OpenSignalMaps. Once you have the LTE only mode turned on or even the normal LTE + CDMA mode, you can use this app to refresh your network by clicking the little refresh button at the bottom left of the app in the Overview tab. What this does is pretty much turn your phones mobile networks on and off and then scan for LTE first before scanning for EVDO. I have been able to connect to many more LTE sites by doing this. Even ones that are fairly far away.
Hope this all helps. Let me know if you have any extra questions.

No data connection at all
I have the settings on GSM/HSPA/LTE, but lost data connection completely. Tried to restart and turned on/off flight mode - still no data. Voice in and out is OK. I finally managed to reconnect by repeating the process. Is there a better way to reconnect?
Thanks.

Check out "Network"
https://play.google.com/store/apps/details?id=de.mangelow.network
It takes you to the network screen as well
Sent from my SPH-L710 using xda app-developers app

with the latest l13 radio my phone will not stay on 4g it is heavily biased to 3g and I do not know how to fix it. I am right next to the 4g towers.. ... any thoughts? Thanks

Thanks
Thanks. Unfortunately, the "Network" app would not run. So I followed a similar line, and found "3G Reconnect". It does not fix the connection issue. Any other thoughts?

Is it possible to switch 3g->2g if I turn on Wifi and wise versa?

I just want to save battery. Can my phone switch to 2g if I turn on Wifi?
Any mod or app?
Sent from my Galaxy Nexus

that question hurts my head.
wifi is wifi...it will connect to a wifi network if an open one is around. this does save battery over 3g.
however, this will have no effect on cellular data.
you may be able to go into settings>more>mobile networks>network mode and toggle through some of those options...one of them will probably witch to 2g mode.
FYI, those instructions are for the CDMA/LTE Gnexus....so your results may differ. but that is where i can toggle from LTE to 3g mode....assuming you would be able to toggle from 3g to 2g mode.

Your mobile network gets disconnected when you connect to Wi-Fi anyways. So who cares?

Thanks!
Sent from my Galaxy Nexus

The app tasker can do all kinds of things like this.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Edit: also my phone gets better signal for phone calls while on 2g only inside of my house.

droidmakespwn said:
The app tasker can do all kinds of things like this.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Edit: also my phone gets better signal for phone calls while on 2g only inside of my house.
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Thanks!
But tasker is damn expensive What about battery life? Does it consume much? I bet it does because app must monitor everything what is happening in th phone.
Sent from my Galaxy Nexus

LTE and 3g handoff problems

I just came back to sprint from Verizon and I have 4g in my area but its weak at my house. My problem is this. Ill habe tje 4g icon in the status bar but it wont do anyrhing cause its so weak but I cant get 3g to come on and sometimes when I switch off wifi I have no data at home until I reboot or toggle airplane mode. Its like its not switching between 3g and 4g properly. Anyone else have this problem? I just got the phone 3 daya ago and want to make sure its not my phone. Ill also have trouble when it does finally show 3g from 4g it takes a while bwfore the 3g will even give me internet access. Thanks for all the help guys.
Also I know I can just switch to evdo mode and it works fine thwn but its a oain to switch it to lte when I keave cause when I leavw the house I get good 4g service.
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musclehead84 said:
I just came back to sprint from Verizon and I have 4g in my area but its weak at my house. My problem is this. Ill habe tje 4g icon in the status bar but it wont do anyrhing cause its so weak but I cant get 3g to come on and sometimes when I switch off wifi I have no data at home until I reboot or toggle airplane mode. Its like its not switching between 3g and 4g properly. Anyone else have this problem? I just got the phone 3 daya ago and want to make sure its not my phone. Ill also have trouble when it does finally show 3g from 4g it takes a while bwfore the 3g will even give me internet access. Thanks for all the help guys.
Also I know I can just switch to evdo mode and it works fine thwn but its a oain to switch it to lte when I keave cause when I leavw the house I get good 4g service.
Sent from my SPH-L900 using xda premium
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4G is always a priority over 3G if you have it enabled. There's no way around it unless you switch lte off. So if you're in a weak 4G coverage and your phone gets the signal it will take over your 3G. Wifi is always 1st priority, 4G 2nd, then 3G, finally 2G. As long as those radio are on that's the order they work. Was always like that even in wimax devices. Switch to cdma while at home or connect to wifi.
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