Mobile Data and WiFi - Samsung Galaxy S8 Questions and Answers

How does the phone prioritize between Wifi and Mobile Data? Say you have both Wifi and Mobile Data turned on does the phone use Wifi if you have an active connection? Can I leave Mobile Data turned on and not worry about using up my data if connected to Wifi?
Noticed that I have no Mobile Data toggle in the quick toggle menu. Since I am on a limited Data plan I like to toggle it on and off. I did find the toggle in settings but that is annoying to get to.
I decided to try out Tasker to make a task when at these cell towers turn on Wifi and turn of Data. Turns out with Tasker you need to be root to turn off Mobile Data.

If you leave your data on, you will have battery drain and also more data tracking taking from you as well.
You don't need both on.

Any recommendations on being able to toggle Mobile Data on/off with out having to go into settings every time?

There are multiple settings you can use: Like WiFi preferred, or you can even prevent apps from using particular networks you specify, or block particular programs from network access all together. It may take some time in experimenting but there are many options to choose from.

Hello , i have similar problem, when is connected to wifi , dont disconect data, i see all trafic go to wifi, but the battery drain fast, and if i dont disconnect data manually charge is slow too!
I try many thing,reset network settings, wipe cache, include factory reset, and re flash the original firmware, but the problem persist, i was call samsung support and say, we have to repair it, but i buy the phone in usa and live in spain
Any solution for that?
Thanks in advance

It will always use WiFi if you're connected to WiFi. Battery life really shouldn't change at all since no mobile data is flowing through that connection, and even with mobile data off you're still connected to LTE, it just won't use it for data.
Go to the WiFi settings and make sure smart network switch it off, otherwise it will disconnect from weak WiFi and use data.

Yes smart network is off
Download booster off
On developer option, keep mobile data turned on is off too
I just factory reset again, with out any update or software , on the first reboot this issue happen again
Make me crazy!
Thanks in advance
Nicolas

By default your phone will use WiFi for data whenever WiFi is connected. You shouldn't have to manually disconnect mobile data.
If you want to be doubly sure, have your mobile data on and at the same time connect to a WiFi that is not connected to the internet. You will find that you will not be able to browse the internet, update any apps or do pretty much anything that requires the internet.

Yes i can manually disconnect data when is wifi connected
But is miss it, battery drain so fast

mil_house said:
Yes i can manually disconnect data when is wifi connected
But is miss it, battery drain so fast
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Click to collapse
I see from your pic that mobile data icon is showing at the same time as your WiFi.
Perhaps you may want to reset your network settings.
You do this by: settings > general managment > reset > reset network settings
Edit:
Never mind, i see that you've tried this already a couple of post above.

I already do , also i do wipe data and cache, factory reset, and flash original firmware , and problem persist!

Related

WTF!!! Crazy data connection!

I have disabled the connection before, but now i can change the password, delete anything and whatnot and the fone will still FORCE connect itself to the data connection, which is gonna cost me big $$. This only happens once I open up opera/pie/google maps though.
right now my connection is basically:
Name:blahhhh
number:#97f399gg
username:sefse
password:hhhhh
domain*:xxxxxdaaa
i have tried everything, even completly deleting all the accounts.
what seems to happen is that the password goes for 5 digits to 16 somehow.
idk if that is back to what it is supposed to be with the #777 connection.
Using 3.0.1 custom DCD Rom, with opera, n some other bs programs
Anyhelp on how to stop this is appreciated
sumlazykd said:
I have disabled the connection before, but now i can change the password, delete anything and whatnot and the fone will still FORCE connect itself to the data connection, which is gonna cost me big $$. This only happens once I open up opera/pie/google maps though.
right now my connection is basically:
Name:blahhhh
number:#97f399gg
username:sefse
password:hhhhh
domain*:xxxxxdaaa
i have tried everything, even completly deleting all the accounts.
what seems to happen is that the password goes for 5 digits to 16 somehow.
idk if that is back to what it is supposed to be with the #777 connection.
Using 3.0.1 custom DCD Rom, with opera, n some other bs programs
Anyhelp on how to stop this is appreciated
Click to expand...
Click to collapse
Google Maps and other apps that require data will automatically start a data connection if you initiate them.
If you turn on WiFi this should stop it because you are using another way of connecting.
Do you use your data plan from your carrier? If not you can always go to the EPST settings and disable EVDO and just use 1X. This will kill all data and just let you use the CDMA settings.
Okkkkk
I was able to attempt to activate them before and would just get an error, expectially with PIE, but now idk.
No i do not have the data plan, and im about 2-3MB into data which sucks. Im supposed to have a data block but i guess not.
To kill the EVDO settings, what would that be under?
( making the data parameters section blank did not work)
Also if i do this will i still be able to connect to Rev-A and whatnot?
[obv not do EVDO or able to send mms, but those two i can live without]
sumlazykd said:
I was able to attempt to activate them before and would just get an error, expectially with PIE, but now idk.
No i do not have the data plan, and im about 2-3MB into data which sucks. Im supposed to have a data block but i guess not.
To kill the EVDO settings, would that be under the data parameteres section?
Also if i do this will i still be able to connect to Rev-A and whatnot?
Click to expand...
Click to collapse
You dont neccessaraly kill EVDO all you are doing is only letting your phone see a CDMA signal. Like for making calls and such. This will iliminate EVDO / REV A , but it is simple to go back. Plus i learned that it gave me way better coverage signal, but with no ability to use data.
Completely disable 3g data connections forever, save wifi
This is my first contribution to xda-forums! I'm glad I can help at all when I've benefitted so much... Thanks to all!
NOTE: After the following steps, Modaco's Nodata doesn't even register that a data connection exists! For this reason, if you occasionally use 3g, you probably will want to use Nodata, and NOT the following solution. You just might have to open Nodata and disable the data connection every time you soft-reset.
I was finally able to completely 100% block the 3g data connection on my Verizon XV6800 (aka Mogul aka Titan) was the following three steps:
1. The key culprit is HTC_CM_Guardian.exe in the windows directory. I couldn't edit it or delete it via Total Commander file explorer, but I was able to rename it! This makes the OS unable to find the program when it tries to re-set the Data connection settings.
2. Under Settings > Connections > Connections > Advanced > "Select which networks are automatically used," hit "Select Networks."
3. Under "Programs that automatically connect to the Internet should connect using:" hit "New...".
4. Enter any name you want (mine's "nodata!") and leave all the other settings blank.
5. To be safe, you may have to delete the Verizon Or "Internet" Connection on the Tasks Tab of Settings > Connections > Connections. Save and exit.
Voila! Wifi, yes; 3g, no! No more nasty billing surprises.
Modaco's Nodata program is awesome, but the problem was that HTC_CM_Guardian.exe re-enabled the data connection every time I reset the phone. Plus, HTC_CM_Guardian.exe would also thwart any effort to block data via the "Connection Settings." By renaming HTC_CM_Guardian.exe and creating a "nodata!" connection that programs auto-connecting to the internet would try to use (and fail), we get three results:
1. Modaco's Nodata doesn't even register that a data connection exists! For this reason, if you occasionally use 3g, you probably won't to use this solution.
2. When you reboot, the OS is unable to mess-up your "Connection Settings", so
3. Unless you have an active wifi connection, programs will try to connect to the Internet using the "nodata!" settings, which, being empty, will fail, exactly as planned.
Hope it helps.
Hi,
Can you tell me where to find the guardian.exe file. I cant locate it any where is it hidden perhaps. I need to disable wifi for this phone. The property that I have does not have wifi currently. So the Wifi feature drains the battery. Thank you very very much if you can provide the information.
lwinkler69 said:
Hi,
I need to disable wifi for this phone. The property that I have does not have wifi currently. So the Wifi feature drains the battery. Thank you very very much if you can provide the information.
Click to expand...
Click to collapse
I just use the slider switch on the side of the phone to enable/disable wifi. I use RyanMogul's ROM and it works like a charm.
I like nueWiFiSwitch - Hardware Switch (it's in Ryan's ROM I'm using) Disable the wifi switch and whenever I want to use it, I turn it on with Communication Manager.
(the hardware switch would turn on random times when putting in or out of my pocket, etc. Works great!

Auto switch from wifi to data connection

This seems like I've got something setup wrong. When I am in my office, my phone works great and it connects using the WiFi here. The problem comes what I leave the office and go someplace that doesn't have WiFi. If I want to connect to the internet for example, I have to go to settings->connections->connections->advanced->select networks-> and then change from "My work Network" to verizon wireless. Of course, when I get back to work (or anywhere with a wifi connection) I have to remember to change the phone back to "My work Network".
Is there a way to automate this?
As a second question, some apps seem to always use the data connection even if the phone is on a wifi connection already. Is there a way to change this behaviour as well?
Anybody? Seems like something everyone could use.
I am not sure how you have your device set up or which rom you are using, but my device does not behave in this manner.
My device is almost exactly opposite. It is always connected to data network unless I force it to use wifi. I have not messed with any settings besides setting up my wifi connection. Interesting.
kdj67f said:
I am not sure how you have your device set up or which rom you are using, but my device does not behave in this manner.
My device is almost exactly opposite. It is always connected to data network unless I force it to use wifi. I have not messed with any settings besides setting up my wifi connection. Interesting.
Click to expand...
Click to collapse
I'm using DCD's ROM. And your issue sounds exactly like mine. It stays on data until I force it onto WiFi and then it will stay on WiFi until I force it on data. Kind of a pain if you ask me.
1st Question - Go to Start -> Settings -> Connections -> WiFi -> Menu -> Advanced and select your "Turn Off WiFi opition if not connected in __"
2nd Question - Idk, but I want that too, so that when I turn on my WiFi, my data connection turns off, and when I turn my WiFi off, my data turns back on, but I haven't found anything for that yet.

Data Connection Always Connected

I am not sure if this is even a problem, but before today my data connection to t-mobile would only connect when needed. For instance, if I was home then I would be connected to wifi and my data connection would turn off by itself, but would still connect if needed by a program, or whatever, that can't use wifi but needed the data connection instead. Like when I sent a MMS message for example. Then after the message was sent or whenever the program was done with the data connection then it would automatically disconnect where I would continue to use the wifi connection. Also, if I left the house then I would automatically be switched to the data connection as the wifi signal went out of range.
This is the way I liked it. Today it had changed the way it behaves. Now, the data connection stays on no matter what and I have to manually turn it off in the comm manager. Also, everytime the screen turns off and the device goes into sleep mode, or whatever you call it, the data connection automatically turns backs on while it is sleeping. For example, when I go to sleep I press the red hang up button to put it in sleep mode then I go to sleep. When I wake up in the morning the data connection is on and when I go to turn it off it shows it has been connected for however long I was asleep for.
Like I said I am not sure if this is a big deal or not, I just don't want to be charged for going over the data cap for some reason. And I am not sure if maybe there is a program in the background that might not be showing up in the task manager and is downloading data that will eventually cost me when it goes over the cap.
Now I know that certain things automatically connect to download data like mail, weather, stocks, twitter, etc., but I always thought that they could use a wifi connection if available. And if not then I know for sure that it used to at least disconnect the data connection after it was done.
I am basically asking if this is normal because it used to not be like this on my phone and if it is something I need to.be worried about? Also, if anyone knows how to change it back to the way it used to be? I would greatly appreciate it if you let me know how to do it.
Thanks,
Michael
Anyone?
All I want to know is if it is normal to always have the data connection on. So does anyone else experience this? The data connection seems to reconnect by itself everytime the phone goes in standby and stays connected until I manually disconnect it.
Thanks,
Michael
Hey I just happen to have similar problem with the data connection turning on by itself when I check email on my wifi.
If you goto comm manager - menu - connections - advanced
Under "select which networks are automatically" - select networks
Change the connection type under "programs that automatically connect to the internet..." to your wifi connection from "t-mobile data."
Seems to work for me at the moment anyways. It's not connecting automatically to data connection when I check my emails.
Hi Michael.
It's actually the default behavior for the data connection to stay on once it's activated, until it's switched off manually. You won't pass significantly more data that way than if you just turned it off right after whatever app(s) are doing using it...the only downside to leaving it on is the speed at which it drains the battery.
There are some users who choose to leave it on, just to avoid the delay when they want to use it, and there's probably tons more who don't even have any idea you might want to turn it off when not in use.
Now I could swear there's a cab floating around here somewhere that will shut off the data connection once it sits idle for 60 seconds, but I didn't turn it up in a casual search the other day, so I can't point you to it right now
As for the apps using wifi when it's available instead of calling up a data connection, every one you mentioned should do that, and those all behave that way for me...so maybe there's something else you haven't thought of yet that ignores wifi when it connects to update or whatever. I would start by turning off auto updating for any and all of those services you listed, and see if the issue persists. If so, you'll need to dig deeper to find the culprit. Do you have microsoft myphone connecting to backup maybe? That seems to ignore wifi on my phone, I'm sure there's other apps that do as well.
Today it actually quit doing it for some reason. So I have no idea why it did that for awhile. Now I read that some people were having the opposite problem, which was that they couldn't get their connection to stay on. Now, this is actually the way I want it. Oh well, I hope it stays this way now.
Thanks for your help,
Michael

data connection being used even on wifi

hi guys if anyone can help will be greatful.
when i connect to the wifi and browse interenet, my x2 still uses data connection to browse and my balance gets deducted.
is there anyone i can switch of data connection or does it automatically switch off when the Wifi gets On.
And i think PLAY NOW doesnt use WIFI it only uses DATA connection, because it never works on WIFi and keeps giving a error.
Hi, I never quite understood how could Windows Mobile lack some "Preferred accounts" or "Priority" settings like the one my beloved SE P1i has.
Indeed even I'm connected on Wifi the HSDPA data connection goes on at its own will.
However I know a couple of workarounds:
For users with an unlimited or large data plan who want only to supress data connection in roaming for fear of huge bills, there is NoDataInRoaming, http://forum.xda-developers.com/showthread.php?t=503131
If you simply want to shut off your data connection and make it stay that way until you tell it otherwise, try Red Frogfhish Data Controller http://www.redfrogfish.com/139/data-controller-update-version/
adils3d said:
hi guys if anyone can help will be greatful.
when i connect to the wifi and browse interenet, my x2 still uses data connection to browse and my balance gets deducted.
is there anyone i can switch of data connection or does it automatically switch off when the Wifi gets On.
And i think PLAY NOW doesnt use WIFI it only uses DATA connection, because it never works on WIFi and keeps giving a error.
Click to expand...
Click to collapse
the simple trick is that, u have to just turn off your data account settings while using wifi...
it happened to me as well, when i had no knowledge about changing settings..
when u r about to connect wifi, 1st use these simple steps
1: go to start
2: go to settings
3: go to connections
4: further go to connections
5: select advance
6: change ur sim settings network to any other network, like my ISP e.t.c
by this trick u will never be discharged from ur balance

WIFI to Mobile Network switch not working (H990ds)

Hi guys i got my Lg V20 (H990ds) a week ago, but i just got the nanosim from two days.
Now i did notice that when I go out from home and I turn off the wifi the mobile data doesn't work at all. I can make phone calls and i can see the signal bar indicating 4G or 3G but there is not a really data connection, just like the phone is not capable of exchange any internet data (trough browser or apps).
And i did notice too that this issue it solves with just rebooting the phone.
So my question is, can be a software related problem? or I got i faulty unit?
Thanks
Try to reset network setting
Fz'Rot said:
Try to reset network setting
Click to expand...
Click to collapse
I already did it and also a factory reset from settings, but nothing
But you can access to internet after restarting the phone?
Fz'Rot said:
But you can access to internet after restarting the phone?
Click to expand...
Click to collapse
Yes, every time after I turn off the wifi, the mobile data doesn't work until I restart the phone
I just found out another thing, only if I select gsm/wcdma network mode the mobile data works after turn off the wifi, it seems that the problem is present only with the gsm/wcdma/LTE option. Any ideas?

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