I must be missing it somewhere, but I cannot seem to find where to turn off just the cellular radio on the N7 3G.
To save battery, I'd like to turn off the cellular radio and only use Wi-Fi when I'm at home. I can go into settings, and under Wireless and Networks I can go into Data usage and turn off mobile data there, but I still get a status bar icon with signal strength for cellular. That leads me to believe the radio is still powered on and scanning for a signal. That has to use some power.
I found I can turn on Airplane mode which turns off everything and then turn Wi-Fi back on. This seems like a really strange way to turn off the cellular radio. Every other device I've had there was a place to turn the cellular radio on and off. So then when away from home I can turn off Airplane mode and turn off Wi-Fi.
If anyone has a better way to do this, let me know.
I'm running a stock 4.2 ROM that has been rooted.
The airplane + WiFi method is the one I've always used on Androids. Are there other Androids with such an option in the standard user facing menus?
Anyway in the Testing menu (easy way to access is with the app "Phone Info") under Tablet information there is a "turn off radio" button. That seems to kill the cell signal while leaving WiFi on. Go back to the same place to turn it back on.
Sent from my Nexus 7 using Tapatalk 2
To get to the testing menu go to the play store and install
Hidden menus app
Sent from my Nexus 7 w / 3g using XDA Premium HD app
cmstlist said:
The airplane + WiFi method is the one I've always used on Androids. Are there other Androids with such an option in the standard user facing menus?
Anyway in the Testing menu (easy way to access is with the app "Phone Info") under Tablet information there is a "turn off radio" button. That seems to kill the cell signal while leaving WiFi on. Go back to the same place to turn it back on.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
My HTC One X has an entry for Mobile Networks with an on/off control near the top on my settings screen. HTC also supplies widgets to toggle on and off all the radios of their phones. There is one called Mobile Network that will toggle the cellular radio.
Has anyone seen a set of widgets that I can install to toggle Wi-Fi, Bluetooth, GPS, NFC, and the Mobile Network that works with the N7 3G? To conserve battery, I prefer to turn off the ones I'm not using.
For instance, with only Wi-Fi enabled, three email accounts syncing, plus Facebook and Twitter, my battery drain is about 0.5% per hour. If I leave the cellular radio and GPS enabled, it jumps to about 1.7% per hour. These numbers are when sitting idle with the screen off. I haven't tried enabling Bluetooth and NFC to see how much they increase the drain.
I only enable the radios I need to conserve battery. I'm just looking for an easier way to do it. Currently I have to go through several steps.
Related
i signed the data plan only contract with UK O2. they block the calling feature on my dell streak which i only can send and receive text.
I am looking for a way to turn off phone module at the mean time keeping wifi on. unfortunately, seem i only can turn phone module off by setting in airplane mode. in such case, i can't use wifi for surfing.
is there any way around this? thx in advance!
Tap the battery icon in the top bar. This should bring down a menu, tap the tick box next to 3G, EDGE, GPRS networks. This will turn off the phone network data connection and leave the Wi-fi on.
This is sadly the closest to getting the phone to how you want, other than taking the sim card out.
I've noticed this problem on a Samsung Captivate and can put it in airplane mode (which also turns off wifi) and then separately turn wifi back on without changing phone.
You can do it with 2.1 rom, I'm using it now to type this..
put it in airplane mode.
then go to settings, wireless networks, wifi and turn it on .
the quick dropdown menu (from the signal status) will also let you turn wifi on when its in airplane mode but not on the 1.6 rom unfortunately.
i c. it's the ROM! damn...
u r right. when yr phone in airplane mode, it won't get charged at all.
I am using APNdroid app for switching data connection from WIFI to 3G. However, I need to restart the phone every time to make it work.
Is this normal ? or Is there anyway we can fix it? I have searched through all the threads but didn't get much info.
Your help is much appreciated.
Not the answer to your question, but if you turn off 3G *only* when you turn on Wi-Fi, you don't have to do anything. While connected to Wi-Fi the data connection isn't on.
If you leave 3G on, Wifi (when enabled and connected) will disable 3G. Also superpower (in the app store) will turn off wifi and 3g when the screen is off. I also recommend Power Control Plus which provides a widget in which you can customize each button and toggle 3G and Wifi on the fly.
Thanks for the replies guys...To be more specific on the problem , I don't have any issue while I am on wifi its only when I switch to 3G...i tried beautiful widgets also ...looks like the problem is with phone rather than app
Sent from my GT-I9000 using XDA App
switching wcdma to gsm gives problems here too, .. so i wont!
Hi guys,
Got my HD yesterday...love it x100000. My first android so im still getting to grips with it all but what a fantastic phone.
Anyway my question is just about the data connection set up. I was just looking through the settings making sure everything is how I like it and I stumbled across this:
Settings > Wireless & networks > Mobile Networks and at the bottom there is an option which says 'Enable always-on mobile data'.
What is this and what does it mean? It says it uses more power on some mobile networks so do I turn it on or turn it off?
I have a wifi and mobile network widget on my home screen cause I like to be able to turn them on and off quickly.
If someone could just explain to me exactly what this setting is and whether I need it on or off.
Thanks a lot
This is your 3g connection. You should switch it off when you're not using it as it's a battery drainer. The always on option is good if you're waiting for a lstge ota update ir something similar and you have an unlimited data cobtract.
Sent from my Desire HD using XDA App
Pardon my appalling typos.
Sent from my Desire HD using XDA App
pwraggcan said:
This is your 3g connection. You should switch it off when you're not using it as it's a battery drainer. The always on option is good if you're waiting for a lstge ota update ir something similar and you have an unlimited data cobtract.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
I see, but the thing is if I have Enable always-on data yet I have a mobile network widget on my home screen and I turn it off what is actually on?
I have sort of interpreted this always-on setting as:
If you have you mobile (3g) network turned on and have the always-on setting on, then when your phone goes into sleep mode the 3g connection is maintained and apps can still sync whilst your phone is locked/sleeping.
If you have your mobile network (3g) turned on but have the always-on setting turned off then whenever you lock your phone and it goes into sleep mode it is no longer connected to the 3g network and apps and stuff cannot sync (unless you're on wifi obviously). And as soon as you unlock the phone it will reconnect to the 3g network.
And turning the mobile network off from the widget or in settings overrides the always on setting.
Like I said this is only my interpretation of this setting...I've searched google and found almost nothing concrete about it just some opinions and I have searched through the full user manual for the desire HD and this setting has no mention.
So what do you think? Anyone else have any knowledge of this setting?
im not sure about this but i think it means that it doesnt connect, disconnect, connect again whenever you open or close the internet. its always connected, but not always active, so its faster to start up. its like leaving your wifi on all the time. theres always a connection but its not always passing data.
i leave mine always on because it doesnt eat much battery and it makes connecting over 3g much faster.
If I haven't activated 3G, does that mean the radio is disabled, or could it be still using battery power?
Put it in airplane mode then enable WiFi, then the only radio that's on is your WiFi radio. That's what I do on my deactivated Droid, otherwise its looking for 3g...
Elysian893 said:
Put it in airplane mode then enable WiFi, then the only radio that's on is your WiFi radio. That's what I do on my deactivated Droid, otherwise its looking for 3g...
Click to expand...
Click to collapse
I forgot all about doing that on my Xoom. I did that just now, since my 3g has not been activated.
Awesome! Thanks for reminding me about that.
Yeah, originally I didn't do anything about it....but then I was thinking that maybe it was using some battery so I enabled airplane mode. Battery has been much better. Hopefully there will be a ROM or some other way to disable it in the code, so that I don't have to leave airplane on.
You can also disable mobile service in the settings. It's preferable since doesn't airplane mode also disable gps?
Sent from my PC36100 using XDA Premium App
If you go into Settings in Wireless and Networks, if Airplane mode is turned off you can choose Mobile Networks and turn off data selected.
That should stop the antenna from activating without using Airplane mode.
Bielinsk said:
If you go into Settings in Wihttp://forum.xda-developers.com/newreply.php?do=newreply&p=11998019reless and Networks, if Airplane mode is turned off you can choose Mobile Networks and turn off data selected.
That should stop the antenna from activating without using Airplane mode.
Click to expand...
Click to collapse
I tried that originally and the battery monitor still showed the 3G radio being on. Also even doing that it still prompts on every reboot to be activated while in airplane mode it doesn't
Bielinsk said:
If you go into Settings in Wireless and Networks, if Airplane mode is turned off you can choose Mobile Networks and turn off data selected.
That should stop the antenna from activating without using Airplane mode.
Click to expand...
Click to collapse
My understanding though is that this will ONLY disable data. It won't disable the physical radio that connects to the cell network. And as long as that radio is enabled (even if data is disabled) it will contribute to the draining of your battery. By putting the device in airplane mode, it will actually disable the RADIO, not just the data coming in through the radio.
I just switched to Airplane mode. Let's see if this will help battery life (not that I had to complain anyway)
funnycreature said:
I just switched to Airplane mode. Let's see if this will help battery life (not that I had to complain anyway)
Click to expand...
Click to collapse
Originally after about 30 hours I would have around 20% battery left. After enabling airplane mode I have 86% battery left after 1 day and 7 hours. I think it makes a big difference.
So is this right? The only way to disable the radio is to actually enable airplane mode and then turn wifi back on? Will the GPS still work?
I found with mine just on standby I used 17% battery in Cell Standby. I went into Mobile network settings and unchecked Data Enabled and it dropped considerably, down to about 3% (still while I hadn't been using the Xoom).
I'm going to try airplane mode tonight.
Is there any hope to activate 3G? I am living in europe (Denmark) and here is no verzion.
Sent from my Nexus S using XDA Premium App
I'm using this as an ipod replacement and I finally figured out how to turn off the cell radio, I think.
open dial pad
dial *#*#4636#*#* (If Testing menu doesn’t come up then click "Call" and it will come up)
go to Phone information
Scroll down
turn off radio
I assumed wrongly before that the cell radio was automatically turned off since I didn't have a sim card AND since the option to turn off 3G data was disabled in the Wireless settings section. But out of curiosity, I clicked on battery info and it said that my cell radio was on this whole time! See attachment.
Turning on Airplane does turn off the cell, but it also turned off the Wifi and GPS. You can turn Wifi back on after Airplane mode, but it doesn't work properly, try using XMBC remote with Airplane mode and Wifi on, it doesn't work.
So, I guess I'll see tomorrow if this really works but so far it looks promising!
sweet thanks for the info
Get tasker and make a toggle switch of the code
Neo3D said:
I'm using this as an ipod replacement and I finally figured out how to turn off the cell radio, I think.
open dial pad
dial *#*#4636#*#* (If Testing menu doesn’t come up then click "Call" and it will come up)
go to Phone information
Scroll down
turn off radio
I assumed wrongly before that the cell radio was automatically turned off since I didn't have a sim card AND since the option to turn off 3G data was disabled in the Wireless settings section. But out of curiosity, I clicked on battery info and it said that my cell radio was on this whole time! See attachment.
Turning on Airplane does turn off the cell, but it also turned off the Wifi and GPS. You can turn Wifi back on after Airplane mode, but it doesn't work properly, try using XMBC remote with Airplane mode and Wifi on, it doesn't work.
So, I guess I'll see tomorrow if this really works but so far it looks promising!
Click to expand...
Click to collapse
I tried the keypad code you listed and nothing happens. I really need a way to turn off the phone and keep bluetooth on while at work in order to listen to my music with bluetooth headphones. I was able to use the code successfully before the Froyo update.
On mine, I simply switch on airplane mode then switch on wifi. Voila! Phone off, wifi on.
Nevermind, did not see reply that some apps don't work with this workaround...
Sent from my Dell Streak using Tapatalk
Couldn't you just pull the SIM card???
Edit - Nevermind. I suppose the radio is still on for emergency calls...