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[Q] wifi/data auto toggle?

This may be a dumb question but is there a way to set up wifi and data to automatically toggle? As in, when wifi is available it uses wifi, but when its not it automatically switches to 3g/4g? When im home i like to use wifi, but then when I leave I lose it and usually forget to switch over to data, so I get no emails or updates on anything until I look at my phone.

Option 1: Leave wifi and data on all the time.
When a trusted wifi network is available and your phone is connected, your phone will not use data (you will see the data indicator automatically disappear even though it is enabled). When you are no longer connected to wifi, your phone will automatically bring the data connection back.
Exception: using apps (usually Verizon-specific) that require a mobile data connection will bring the 3g/4g radio out of dormancy.
Pro: automatic switching, no need for additional apps.
Con: leaving wifi on takes its toll on battery life.
Option 2: Download/Install Llama from the Market
After you teach the program what cell towers are where, you can define criterion (ie you physically leave or enter a defined area, a certain time, etc) to carry out specific actions, including changing volume, display brightness, toggling data connection, wifi connection, bluetooth, gps, etc.
Pro: automatic switching of most anything imaginable, saves battery life compared to leaving wifi on
Con: additional app running in background, occasional instances of bugs

cnoevl21 said:
This may be a dumb question but is there a way to set up wifi and data to automatically toggle? As in, when wifi is available it uses wifi, but when its not it automatically switches to 3g/4g? When im home i like to use wifi, but then when I leave I lose it and usually forget to switch over to data, so I get no emails or updates on anything until I look at my phone.
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wi-fi matic is the app you want, it auto toggles wifi on when you are on the same cell tower than is near your home, as soon as your cellular switches to your home cell towers it toggles wifi on, and when it's away from home cell towers it toggles wifi off, you can use it for multiple wifi networks as well, i travel for work so i dont have a work wifi but u could have it auto toggle on at work or home, its also extremely easy to use, far easier than any tasker program.

Automatic selection of Wifi or 3G using the app called Llama

Hi everybody,
I am using Llama for several things on my i9100g. The first one is to control sound profile at work and at home, this is straightforward. The second thing is to control when the Wifi or the 3G signal should be on. I would like to have some input in order to optimize the process, since I believe is kind of messy.
Basically there are three principles that I want to use.
a. When I am physically at home I want to use only my Wifi, I have no flat 3G plan plus I believe the Wifi consumes lets battery that the 3G connection.
b. When I am out, of course I want to turn off Wifi and turn on the 3G.
c. Always optimize my battery consumption. So far with low use, I have two full days without charging the battery again.
For these reasons, I have created the following events, variable and zones.
Zones
Home: This zone covers my house and roughly 4 blocks around, including restaurants and a friend place.
Llama Variables
Wifi: when ‘Wifi’ is Disabled the Wifi signal is off and vice versa.
Mobile data: when ‘Mobile data’ is Disabled the 3G is off and vice versa.
Force: It a kind of flag variable that I have created to “force” Llama to check for a Wifi signal after some period of time.
Events
• Wifi On - Home:
Between 06:30 and 22:59 at Home when 'Wifi' has a value of 'Disable' when 'Force has a value of 'Disable' - disable mobile data, set Llama variable 'Mobile Data' to 'Disable' and enable Wifi
Note on this event. I like to turn off all signals (3G and Wifi) after 11 pm at home, since I am probably sleeping.
• Force On: When ‘Force’ has a value of ‘Enable’ – delay for 30 min and then set Llama variable ‘Force’ to ‘Disable’
• No Wifi Available: When your phone disconnects from <Any Wifi network> - delay for 1 minute and then disable Wifi and set Llama variable ‘Wifi’ to ‘Disable’. And set Llama variable ‘Force’ to ‘Disable’
Note on this event. It will fire the event after one minute if all conditions are still valid. I use this extra setting to avoid turning off the Wifi, when the signal just goes away for few seconds.
• Force Mobile Data – On: At home between 06:30 and 22:59 when your phone disconnects from <Any Wifi network> when ‘Force has a value of ‘Disable’ – delay for 5 minutes and then enable mobile data, set Llama variable ‘Mobile Data’ to Enable’, disable Wifi and set Llama variable ‘Force’ to ‘Enable’ every 1 minute.
Note on this event. I will repeat this event as long as all the conditions hold. Please see note 1 at the end of the thread for an extra explanation why I need the repetition.
• Mobile Data Away – On: Upon leaving home enable mobile data, set Llama variable ‘Mobile Data’ to ‘Enable’ disable Wifi and set Llama variable ‘Wifi’ to ‘Disable’
• Evening: Between 23:00 and 6:29 at Home disable all signals.
A general explanation of the events.
I am sometimes in a restaurant in my Home zone, but not physically at home. Therefore, the “Wifi Home – On” will try to connect to the wireless network at home, but of course is not available. Therefore, the “No Wifi Available” will fire after one minute, disabling Wifi. At this stage my phone has neither Wifi nor 3G connected.
For roughly 5 minutes after the firing “No Wifi Available”, the “Force Mobile Data” event turn on the 3G if all conditions are met. At this moment, the ‘Force’ Llama variable will be ‘Enable’.
After 30 min, the ‘Force’ variable is ‘Disable’ again, this is my way to tell Llama, please check again if my home Wifi network is available, if not fire again “No Wifi Available” and later “Force Mobile Data” and one more time the cycle of 30 min is on.
The “Mobile Data away-on” is an evet that kind of overright all the other process. When I am not at Home, is pointless to check for my home Wifi conection,so I tell Llama to turn on the Mobile data regardless of time (maybe I am in a party).
I hope I have explained more of less the process.
Note 1. The repetition of 1 minute is because on my way home, I have to walk few blacks on my Home zone, and I want Llama to always check (every 1 minute) if I have arrived at home or not. If all the conditions in ”Force Mobile Data” are true, means I have not arrived yet in my house, if not, Llama will fire “Wifi On”.
Cheers

[Q] HELP** NFC Tag - Change Preferred Network Type????

I currently have a Nexus 5 and I love the phone so far. The only issue I have right now is has to do with my Airave 2.5. Long story short my phone recognizes the LTE tower close by and when a call comes in it automatically switches from LTE to 3G. (Totally normally and no issues there), but it doesn't first look for my Airave (Which it needs too service is very hit and miss at my location voice wise). Either way it doesn't really matter since I use WiFI while at home for data. The work around is to go into Settings--> Wireless & Networks - More.. --> Mobile Networks --> Preferred network type. Change from LTE/ Global to 3G. Once I do this my phone picks up the Airave perfectly while I'm at home and my calls don't cut out all the time. But when I leave the house I want to turn back on LTE.
My question is this... Is there a way to program an NFC tag to toggle those options. For example one tag in my car I hit and it flips it to LTE and another tag at my home flips it to 3G??? I've tired a few different applications with little success since that type of setting normally require root but not on the Nexus 5. Any recommendations or things I could try?

[Q] Stupid wifi scanning?

I just bought an S6 edge, UK variant, and all I need to do is to have wifi on (I'm at home) but NOT have it continually scanning for other networks.
There doesn't seem to be an option for this in the wifi - more section in settings. Am I missing something?
Just to recap, I need:
Wifi: on
Scan: off
Is this possible?

Unfourtuanly there is only 2 viable options.
Allow searching all the time
Allow searching when Wifi is on (but not connected)
So best bet, is download Tasker, set it to disable wifi when disconnecting and set it to turn wifi on when arriving at home (Cell tower scan can do that)

If you are rooted, you can go to /system/build.prop and change this line
Code:
wifi.supplicant_scan_interval=XXX
where XXX=wifi scan interval in seconds. I don't think it can be completely disabled, but for example you could change XXX to 99999999 seconds, which is 1666666.65 minutes, which is 27777.78 hours, which is 1157.41 days.

[APP][4.4+]WiFi Companion

WiFi Companion, a new way to manage your WiFi.
WiFi Companion switches your WiFi in a smart way by turning it on only when is needed in order to save battery. You can set when and where your WiFi turns on or turns off, how often it connects, at what time or even which days. It is all up to you.
Additionally, it records relevant information of every network you use so now you will not wonder where this "default" network is located, or when was the last time you used it. For every network you use, WiFi Companion (privately in your phone) stores:
- Name of the network.
- BSSID.
- Last IP address.
- Maximum speed reached.
- Precise location. This location is determined once per each network and uses GPS if available, so you can see its location on a map. You can also manually set its location.
- Last time of connection/disconnection.
In addition, for each network you can:
- Set a label to help you recognize it later.
- Set a password reminder, or even the password itself if you want it. Since Android doesn’t let you see passwords once you set them, now you can use them later or share them with someone else.
- Enable location optimization. Some networks are not related to cell towers location, such as mobile access points, so you can ignore them while searching nearby networks.
- Save map location. Here you can choose if you want to save the network precise location on a map.
- Control master synchronization based on the current network. Useful for limiting data transmission over insecure or non-trusted networks.
WiFi Companion provides a notification that shows you when your WiFi is turned on, so now you can easily check when you are wasting battery by not being connected. It also shows current network name, IP address and last time of connection/disconnection.
Play Store