Develop Bugs

Mobile data stays on while WiFi is on

I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?

I notice this as well. Its sporadic though. Data does sometimes drop off but not always.
ToastMan12 said:
I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?
Click to expand...
Click to collapse
Sent from my SGH-T989 using XDA App

Yes, yes! I thought it was my router or something. Sometimes the device will try and use mobile data even if I have a very weak cell signal and a very strong wifi signal. It usually works right after connecting to wifi, but after being connect for a long period of time, it seems to try and switch back to mobile data despite my wifi sleep policy being set to 'Never'.

ToastMan12 said:
I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?
Click to expand...
Click to collapse
Mine did this too all the time until I got a new Sim. I have only had it happen once since then.
Sent from my SGH-T989 using xda premium

I'm having the same issue. New sim.
Sent from my SGH-T989 using xda premium

This issue has already been posted somewhere.... I think in the battery thread. The fix was to get the Llama app and set up a profile to switch wifi off when no wifi available, and to switch 4G off when connected via wifi.

Wifi Fixer app in Market seems to be working nicely so far too.
Sent from my SGH-T989 using XDA Premium App

Aaron636r said:
I'm having the same issue. New sim.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
The only other thing I did besides a new Sim was a factory reset. Its only happened once since that and the new Sim. Also I turn wifi off and only on when I need it. Don't know if some are leaving it constantly on.
Sent from my SGH-T989 using xda premium

have the same problem , hopefully this is fixed

It's staring me in the face as I write this. Wifi connected, 4G on.
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Yea had that problem aswell. I just turned off 4g when I'm on wifi.
Sent from my SGH-T989 using XDA App

The system is going to turn on your data when it needs to check info or upload/download data that verifies your device or is of a sensitive nature to the system, such as purchase authorizations in the market. When our data connection is popping up while connected to wifi and you're not doing anything (like making a market purchase), there could be undesirable transmission of data going on. Not to say it's definitely malicious in nature, however like I said I do see data transmissions taking place for no apparent reason. Could be some app or widget I use has an auto update that does something to activate it, but as long as the app keeps transmission and activity levels minimal, it's unlikely to pop up on a security app that alerts based on excessive data usage.
Sent from my SGH-T989 using xda premium

OK, good to know that I'm not alone in this.
It seems that data isn't being used much while connected to wifi. About of 1mb of traffic through all the time that I was connected to wifi. That was a few hours of usage last evening, and then the whole night on idle.
The question is how is this affecting battery life when it just sits there doing nothing.
Sent from my SGH-T989 using xda premium

Mine has been doing that too, I figured out it was an app making it happen. For me it was the app "beat the traffic" because as soon as I uninstalled it, mobile data went away while on wifi.
Sent from my SGH-T989 using Tapatalk

brian6685 said:
Mine has been doing that too, I figured out it was an app making it happen. For me it was the app "beat the traffic" because as soon as I uninstalled it, mobile data went away while on wifi.
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Same problem, same cause - except mine was a background thread for "Media Hub", which of course is one of those DRM crazy apps that will not work over WiFi. Ran it to just check it out, but nothing worth seeing there so that won't happen again.
When both were running, it seemed each app choose its own path for connectivity, probably related to how the app was coded. For example streaming from web via Flash used WiFi, but most other apps used 4G.
Edit: Add T-Mobile's "My Account" application as one that causes this to happen.

This seems like a side effect of a tremendous amount of bloatware on this phone. Some of those magenta apps only work on the mobile network. Sometimes you will notice that wifi only will show and then all of a sudden you see both the 4g and wifi on at the same time. Hopefully root will take care of the problem.
If it was programmed correctly it would not allow those background apps to update on the 4g network but it seems the coding leaves it open to start up even when on wifi. This is an assumption but from my tests, it seems that's what's causing it.

same issue here

if you guys believe this is a bug, please report it directly to samsung using the form in stickied in the forum
thanks

I reported as a bug prior to discovering its not really a bug. If you go into task manager and open the ram tab and kill all it goes away. I havent had this issue for 3 days now. Its gotta be one of the tmobile apps causing it.
AllGamer said:
if you guys believe this is a bug, please report it directly to samsung using the form in stickied in the forum
thanks
Click to expand...
Click to collapse
Sent from my SGH-T989 using XDA App

mikeyinid said:
I reported as a bug prior to discovering its not really a bug. If you go into task manager and open the ram tab and kill all it goes away. I havent had this issue for 3 days now. Its gotta be one of the tmobile apps causing it.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
What are you killing when you go to the ram tab?

Mobile 3g hotspot hack

So this is something i have tested working myself. I DO NOT recommend this for everyone simply because you can severely mess up your phone and it's wireless connections.
In a nut shell what this allows you to do is utilize your phones built in 3g mobile hot spot and tethering application without paying the extra $20 a month. The legality of this is questionable so use it at your own risk.
What you need:
Samsung drivers(you can find these)
QPST software download it here
1. Install the samsung driver for our phone, as well as the QPST software
2. Place your phone in modem mode(settings, wireless, enable dial up)
3. Plug in your phone and allow all drivers and everything to install.
4. Load up QPST configuration
5. Navigate to the tab that says ports and select "Add New Port"(if all is well you should have one that says something about usb, or anything about your phone)
6. Once the device is added go to the top menu bar, select "Start Clients" and then "Service Programming"
7. Next select "OK" to the device in the box.
Now for the tricky things where you MUST be careful!
8. at the bottom of this box select "Read from Phone"
9. If the password in the box is not "000000"(six zeros) type it in and click OK.
10. You now want to tab over on the top until you see the tab that says "M. IP" select this.
11. Select Profile 0(it will be the very first one on the top) and select "Edit..."
12. You now should Have two input boxes the first one labled "NAI" and the second "Tethered NAI"
13. Under "Tethered NAI" it should say something similar to "[email protected]" (the X's refer to your personal number)
14. You need to edit this so that it no longer has "dun" in it,
"[email protected]"
15. You should now have NAI and Tethered NAI as the same thing. Now click OK and finally "Write to phone"(located in the bottom left). Your phone will reboot its self.
16. Upon first boot you need to go back into settings, wireless, and disable dial up networking. (first time i did this i got a force close with gapps, but did not cause any issues)
If you followed this exactly, you should now have 3g mobile hotspot
I must warn you however, if you reprogram your phone via *228 this will go away! so it will have to be performed again.
Enjoy!

Is this continuum specific? I've guy a buddy with a Samsung showcase that is very interested.

it should be able to work on most phones. I modified this from a samsung fascinate guide and wrote more detailed instructions, however it should work for most android devices.

ah not to rain on your parade but wouldnt it be easier to just use googles wireles tether 3.0 above and select samsung facinate softap mode pretty much anything will pick that up.

Perhaps it would be easier, but it adds extra bloat and just isn't as good as using the original..
Imagine, you want to tether via wireless or wired.. well you simply go into your drawer and select 3g mobile hotspot... So much easier than downloading an app that you are either limited to non secure sights via a wired connection(pda net) or you have to use a tethering app that may or may not work properly, supports only an adhoc connection, has connectivity issues or is just a PITA to setup...
So why not use the app that is already in your app drawer that you can't get away.
Give it time and i'll have a patch for exactly this where you won't even need to perform these steps...
Oh, did i mention i can alter the amount of devices you can have connected at once via 3g wireless hotspot, and my speeds over 3g with my rom are coming in between 0.5MB-3MB per second (as of the tests i've done as of now. I just pulled 1.71mb/sec upload sucks, but i'm not uploading things using it. lol)
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man i miss unlimited data lol thats what got me into trouble with sprint i pretty much forced my hero to roam of off verizon because theres a tower literaly half a mile from my house and apparantly using over 500mb of data roaming a day is a big no no lol. long story short they sent a letter and i got da boot. now i just have a dsl connection and the 2gig data plan so my bill is only about 10$ more than on sprint.
the moral of this story is becarefull with this because verizon does know what your doing

Bierce22 said:
man i miss unlimited data lol thats what got me into trouble with sprint i pretty much forced my hero to roam of off verizon because theres a tower literaly half a mile from my house and apparantly using over 500mb of data roaming a day is a big no no lol. long story short they sent a letter and i got da boot. now i just have a dsl connection and the 2gig data plan so my bill is only about 10$ more than on sprint.
the moral of this story is becarefull with this because verizon does know what your doing
Click to expand...
Click to collapse
The beauty of this modification is that the regular 3g uses the connection of [email protected]... When you connect up the 3g wireless hotspot it sets the connection to [email protected].. This is how they know you have tethering because verizon sets this connection as active. SOOO what this is actually doing is setting the tethering app to utulize the normal 3g connection. SOOO it looks as if you are simply using the normal 3g connection..
Another way to do this is to run the 3g hotspot and have a widget to turn on and off 3g. When you toggle the connection it sets the connection back to the normal 3g even though you have open 3ghotspot Thus allowing tethering.

I am testing this now and i just performed option 2 after *228 and it did not break tethering. In fact i am on it now. Time for option 1 test

The new wireless tether allows regular connections, not just ADHOC
I've done this before, not gonna lie... But I deemed it.... Eh... Not worth it also, a lot of people have issues with dropped signal after doing it But, it is nifty, no doubt I was messing around with qdxm and such since my original enV
Sent from my SCH-I400 using xda premium

trailblazer101 said:
The new wireless tether allows regular connections, not just ADHOC
I've done this before, not gonna lie... But I deemed it.... Eh... Not worth it also, a lot of people have issues with dropped signal after doing it But, it is nifty, no doubt I was messing around with qdxm and such since my original enV
Sent from my SCH-I400 using xda premium
Click to expand...
Click to collapse
I tried downloading google's Wireless Tether from the android market and it said my device is not supported, did you have this problem? i am running Miunia Rom beta 4

I am running the same rom and downloaded Google wireless tether straight from the Google website, no problem at all.
http://code.google.com/p/android-wifi-tether/downloads/list
Sent from my SCH-I400 using XDA App

gk438 said:
I am running the same rom and downloaded Google wireless tether straight from the Google website, no problem at all.
http://code.google.com/p/android-wifi-tether/downloads/list
Sent from my SCH-I400 using XDA App
Click to expand...
Click to collapse
Thanks for the link
Sent via Hamster Ball

No problem, hope it works for you.
Happy holidays..
Sent from my SCH-I400 using XDA App

anybody knows how to unlock hotspot for sprint?

dony71 said:
anybody knows how to unlock hotspot for sprint?
Click to expand...
Click to collapse
Why are you asking this on a forum for a phone that isn't on sprint, and doesn't even have an equivalent? I would suggest checking your phones forum.

Does it matter what ROM you're on (odex/deodexed)?

no it does not.

pattielipp said:
no it does not.
Click to expand...
Click to collapse
I figured as much. Thanks for the speedy reply.

Well I tried this
But for some weird reason every time I trie to mod and restart the phone the parameters return to their original setting, Like I didn't do anything to change it.
Is there something wrong?
I used QPST and if I change the vrzw3g something to anything and restart the phone everything goes back to default...
Thanks for any help.....

If you can't get it working, I honestly wouldn't struggle with it anymore like I said, this is morally grey/illegal, has caused dropped signal for some fascinate users, can be tracked, and has a lot of good alternatives... Wifi tether is my favorite
Sent from my SCH-I400 using xda premium

On wifi connection, but sometimes counts towards total data usage..

When I am home, I am always on wifi connection. Never really get disconnected. Today I was looking over my bill and noticed that alot of times, I have like 10mb or 12mbs used, while I am still connected. Most of the time happens in the middle of the night when sleeping, but also sometimes during the evening when home.
Is this normal?
At first I thought I might be losing connection to wifi sometimes, but even if that happened, 10mbs? When sleeping? I doubt I am losing connection though
I hardly have any apps..
Any idea

ITALIANNYC said:
When I am home, I am always on wifi connection. Never really get disconnected. Today I was looking over my bill and noticed that alot of times, I have like 10mb or 12mbs used, while I am still connected. Most of the time happens in the middle of the night when sleeping, but also sometimes during the evening when home.
Is this normal?
At first I thought I might be losing connection to wifi sometimes, but even if that happened, 10mbs? When sleeping? I doubt I am losing connection though
I hardly have any apps..
Any idea
Click to expand...
Click to collapse
Look at your data usage chart in the system settings on the phone. It will tell you what has been using lots of data.
Sent from your phone. You should be careful where you leave that thing.

Skipjacks said:
Look at your data usage chart in the system settings on the phone. It will tell you what has been using lots of data.
Sent from your phone. You should be careful where you leave that thing.
Click to expand...
Click to collapse
Using a lot of google play store background data.. no foreground
Background data means what?

ITALIANNYC said:
Using a lot of google play store background data.. no foreground
Background data means what?
Click to expand...
Click to collapse
Means google play is accessing data when you aren't using the phone.
Try turning off auto update of apps.
Sent from my SGH-M919 using xda app-developers app

Skipjacks said:
Means google play is accessing data when you aren't using the phone.
Try turning off auto update of apps.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Has been turned off since I received the phone

I am seeing this as well-4g will appear when on WiFi.
Guessing where am at in the house is the weakest signal for my router-thus its trying to switch. Haven't nailed it down yet
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gbiggie said:
I am seeing this as well-4g will appear when on WiFi.
Guessing where am at in the house is the weakest signal for my router-thus its trying to switch. Haven't nailed it down yet
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
That just means you are not connected to wifi calling. Pretty sure it will still say 4G even when on wifi and dont have wifi calling enabled. Could be completely wrong though.

ITALIANNYC said:
That just means you are not connected to wifi calling. Pretty sure it will still say 4G even when on wifi and dont have wifi calling enabled. Could be completely wrong though.
Click to expand...
Click to collapse
It is just the icon I have enabled-it shows "4g" when connected to WiFi as opposed to just showing bars.
Sent from my SGH-M919 using Tapatalk 2

Cant send or receive mms while on wifi after updating to 5.1.1 with odin files

Title says it all. My carrier is Cricket if that helps. Thanks

elloco27 said:
Title says it all. My carrier is Cricket if that helps. Thanks
Click to expand...
Click to collapse
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk

spexwood said:
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
I don't have any battery saving app. Please show me how to enable data with the wifi on

elloco27 said:
I don't have any battery saving app. Please show me how to enable data with the wifi on
Click to expand...
Click to collapse
Nothing should off your data then, but it's always possible that it could've turned off somehow, so just double check using my screenshots.
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If data is on, then try turning Airplane Mode on then off. Then try rebooting if you haven't already (many people rarely reboot their phones nowaday. Not really a need to anymore).
If those don't work, then I'm at a loss. Sorry.
Sent from my SAMSUNG-SM-N910A using Tapatalk

spexwood said:
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
spexwood said:
If data is on, then try turning Airplane Mode on then off. Then try rebooting if you haven't already (many people rarely reboot their phones nowaday. Not really a need to anymore).
If those don't work, then I'm at a loss. Sorry.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
Didn't work but thanks for the help I'll try factory resetting my phone.

elloco27 said:
Didn't work but thanks for the help I'll try factory resetting my phone.
Click to expand...
Click to collapse
Darn. I was really hoping that that was the problem since it's an easy fix.
Factory reset should definitely help. It's just a PITA. :/
Good luck!
Sent from my SAMSUNG-SM-N910A using Tapatalk

my Msm/mms stop sending text on both wifi and/or data after i use Package disabler app. I enabled all apps now and it's still not working right.
It works after a reboot but stop working 5 mins later. Grrr
LLP 5.1.1

[Q] Wifi turning itself on

Hey, Everyone
I'm hoping someone might know why the wifi on my S8+ turns itself on and connects itself when I have all the wifi settings that I know of turned off?
I'm not rooted, the phone is about a month old and again, I have settings for wifi turned off, the smart switch is turned off and yet it still turns itself on and connects to the wifi that is available.
This device is a G955U GS8+ T-Mobile U.S. 64GB Date: 04/29/2017
Always, thanks in advance for any help and your time.

kaiserXDA said:
Hey, Everyone
I'm hoping someone might know why the wifi on my S8+ turns itself on and connects itself when I have all the wifi settings that I know of turned off?
I'm not rooted, the phone is about a month old and again, I have settings for wifi turned off, the smart switch is turned off and yet it still turns itself on and connects to the wifi that is available.
This device is a G955U GS8+ T-Mobile U.S. 64GB Date: 04/29/2017
Always, thanks in advance for any help and your time.
Click to expand...
Click to collapse
Mine does the same thing when it's close to the router. I've gone into wifi advanced and turned everything off that could trigger it also turned smart switch off. When I have the phone away from the router it doesn't happen, just wondering if there's a proximity setting somewhere I haven't found yet.

ggrant3876 said:
Mine does the same thing when it's close to the router. I've gone into wifi advanced and turned everything off that could trigger it also turned smart switch off. When I have the phone away from the router it doesn't happen, just wondering if there's a proximity setting somewhere I haven't found yet.
Click to expand...
Click to collapse
That is something to consider, since we can't find anything in the standard settings. I'm staying in a motel and the router is relatively close in proximity, 50-60 feet, in a building next door. I've never known or heard of wifi being tied into a proximity sensor. I don't know what the advantage or necessity could possibly be. But, I'm not a phone engineer.
Sent from my SM-G955U using XDA-Developers Legacy app

kaiserXDA said:
That is something to consider, since we can't find anything in the standard settings. I'm staying in a motel and the router is relatively close in proximity, 50-60 feet, in a building next door. I've never known or heard of wifi being tied into a proximity sensor. I don't know what the advantage or necessity could possibly be. But, I'm not a phone engineer.
Sent from my SM-G955U using XDA-Developers Legacy app
Click to expand...
Click to collapse
I'll look through some more setting and if I find anything I will post back here.

This was happening on my s7 edge and found found the xfinity app was the culprit.
Sent from my SM-G955U using Tapatalk

I think I found your answer.
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djnikkofb said:
I think I found your answer.View attachment 4230064
Sent from my SM-G955U using Tapatalk
Click to expand...
Click to collapse
No, this is simply do you want your device to scan for wifi networks. This is a standard option.

Thanks for trying. I can't find anything in settings, not in the Developer settings either.
It's bizarre because, as I mentioned, it auto connects when I'm at the motel.
I just checked in and I didn't use my phone for anything for about half an hour or more. I pick it up to use it and as I'm typing a text message I notice the wifi icon in the notification bar. So, it turned itself on when I got here. I went through all the settings and found nothing turned on or that is running in the background.
So, strange.
Sent from my SM-G955U using XDA-Developers Legacy app

kaiserXDA said:
Thanks for trying. I can't find anything in settings, not in the Developer settings either.
It's bizarre because, as I mentioned, it auto connects when I'm at the motel.
I just checked in and I didn't use my phone for anything for about half an hour or more. I pick it up to use it and as I'm typing a text message I notice the wifi icon in the notification bar. So, it turned itself on when I got here. I went through all the settings and found nothing turned on or that is running in the background.
So, strange.
Sent from my SM-G955U using XDA-Developers Legacy app
Click to expand...
Click to collapse
Do you have any apps that auto-connect such as tasker or something else that runs tasks based on time or location? Another thing is to check location-based apps that don't have turn on WiFi automatically when they need it to turn on.
Check out this article, which talks about how to check app permissions. I have my WiFi set to turn on when it comes close to my apartment and turn off the sound when I leave a geographic radius of my apartment. Even if my WiFi is off if my GPS locates that I'm within my apartment's radius, it turns on based on rules I set using MacroDroid.
It may just be an app that has the permission to turn on WiFi when it needs to connect or do SOMETHING with your phone.
PS, I'm making no promises, I'm just thinking Occam's Razor.