Develop Bugs

Wifi/3g

If I turn wifi on at my house and leave a little later, will it automatically switch back to 3g until wifi is available again? And so on throughout the day?
Sent from my SPH-D700 using XDA App

Depends on your Wifi sleep policy.
If set to never sleep, then as long as you stay in wifi range it will stay connected even if the screen is off. If you venture out of wifi range it will jump to 3G and continuously search for a new wifi network at whatever the default TouchWiz scan interval is.
If set to sleep when screen is off, then it will swap back to 3G when the phone screen is off and therefore do your syncing over 3G while the screen is off. When you turn the screen back on, wifi will reconnect if still within range.
If set to never sleep when plugged in, then it will remain on wifi as long as you're within range and have the phone plugged in. Otherwise it will revert to 3G if no longer plugged in and the screen is off. (Never used this choice, so I could be off a bit.)
Pretty sure I covered the cases. I've tried the screen off (TouchWiz default) choice and never (current setting) choice. I find the plugged in choice pointless for me.

[Q] Turn on bluetooth when in airplane mode

I use my phone with wifi for streaming video at home, if I put the phone into airplane mode and then turn wifi on I obviously save battery but then can't turn on bluetooth to use my BT stereo headphones anyone know of an app that will either just turn off the phone radio or let me turn on both wifi and bluetooth when under airplane mode.
I have spent hours in the market and tried a bunch of apps but nothing lets me turn off the phone radio and not lock bluetooth off.
Anyone know of an app that will handle this?

That is the purpose of airplane mode, to turn off BT and mobile network. You may want to save yourself trouble and turn off airplane mode. Besides, if you plan on using your phone on wifi as well as BT headphones, then you aren't saving any battery. What/who suggested you to regularly turn airplane mode on while using wifi as a battery saving technique? That just makes your phone useless for calls/text though I understand you can use the home phone for calls.

Check out an app called "Better Locale Airplane Mode" in the market. Its 99 cents. I havent used it but you can try it and see if it works.

Cm7 has this natively
-My life is a shooting range, people never change-

"Better Locale Airplane Mode" in the market, does work on my two Android 2.2 phones HTC Incredeble and LG Revolution.
The app sets the behavior options when airplane mode is enabed but does not act as a toggle itself, you use the toggle widgets to change the state of wifi and bluetooth on or off.
There is a nice battery savings to using this when not actually flying and only needing wifi and/or bluetooth

[Q] What ROM/Kernel for more screen time

First time android user here! I have a GSM GN:
1. So far I am not loving the battery life. I have juice defender installed which definitely increases idle battery life but my main issue is screen time. I understand that a 4.6in screen has these tradeoffs but nevertheless, what tweaks/ROMs/etc would you recommend to get more screen time?
Has anybody tried franco's and faux123's kernel on the same phone?
I've tried the obvious : Brightness > auto or low, Screen time out > 15s, Juice defender, gps/bluetooth/NFC off
ROMs I have tried: AOKP + Stock kernel, Apex 1.0 + Apex kernel
2. What is the difference between these two settings :
Code:
Settings > Data Usage > Mobile Data
Settings > More > Mobile Networks > Data Enabled
Both of them appear to have the same effect (turn 2g/3g off completely).
3. What is the deal with signal bars and Wifi icon is status bar changing colour from gray to blue? Does it turn blue when it is being used?
When I am connected to my home network, the wifi icon sometimes shows 2 bars and sometimes no bars(grey). All my other devices show full bars.

1. I wouldn't use any of this power saving apps since they keep the phone awake, but that's up to you.
2. Everything between 3-4h screen on time is normal and it will be more or less the same on all Android phones.
3. GPS and Bluetooth shouldn't be that much of a problem since their battery consummation is very low when you'r not using them.
4.Connect to WIFI every time it's possible. Do not set any profiles that it switches of when the screen is off. Unless your going to no data or airplane mode. WIFI uses less energy than 3G.
5. When the icons are blue you're connected to the Google servers. Which means your phone is able to receive gmails and gtalk messages and can sync your data from the GAPPS.

Nebucatnetzer said:
1. I wouldn't use any of this power saving apps since they keep the phone awake, but that's up to you.
2. Everything between 3-4h screen on time is normal and it will be more or less the same on all Android phones.
3. GPS and Bluetooth shouldn't be that much of a problem since their battery consummation is very low when you'r not using them.
4.Connect to WIFI every time it's possible. Do not set any profiles that it switches of when the screen is off. Unless your going to no data or airplane mode. WIFI uses less energy than 3G.
5. When the icons are blue you're connected to the Google servers. Which means your phone is able to receive gmails and gtalk messages and can sync your data from the GAPPS.
Click to expand...
Click to collapse
Thanks!
Although I'm not sure I agree with #1. SetCPU shows that my phone goes into deep sleep most of time. JD disables both wifi AND data when phone goes to sleep, so it does not matter that much if you're not connect to wifi. Ofcourse, I use wifi as much as possible especially since I only have 500mb of data.

Using Tasker to save that battery

Just thought I would post some of my tasker setup to make my battery last a very long time!
First you need Tasker
You also need Secure Settings
And lastly you need Synker
if you want to make my settings super easy to install just download the two attached files and place them on the Sdcard in the Tasker folder.
userbackup.xml
userbackup.xml.txt
then start Tasker, click on the menu button and select Data then restore. This will place all my prebuilt settings in for you.
The first profile I have is Mobile. I have this profile made for when I am in my car but its settings are for anytime power is plugged in.
The things it does is: Turn on GPS, Turn off auto brightness, turn display brightness to max, turn auto sync on, turn media volume to full, turn display time out to one hour.
When unplugged from power it does the following: Turn off GPS, display turns off after 30 seconds, Auto brightness on, Auto sync off, wifi off.
The next setting turns on GPS automatically once maps or navigation is started then turns it off once you exit those apps.
The next one is the big battery saver! When the display is off it Turns off mobile data and wifi.
When the display turns on it will wait five seconds and then turn on mobile data.
lastly I have it setup to turn on mobile data every 2 hours and sync gmail then turn mobile data back off.
I have had tasker for a long time but never really dug into it until I got the SG2. I think this will make your battery last much much longer.
If anyone has better suggestions please add your input.
18.4009

i have the same setup but use juice defender to do the same thing as tasker and synker. it can actually more, like sync more or less at certain times of the day. but i've been thinking about switching to tasker, might be more battery efficient.
i'm using secure settings to turn gps on\off too, based on what applications get run. i noticed the little tray icon only turns on when an app is actively using the gps tho. does that mean gps only uses battery when actually in use? but it seems like i get more battery with it turned off completely.
for mobile, i'm going to attach gps to my car's nfc sticker instead of when plugged in. might be a little faster for charging at home.
i guess you could use secure settings and tasker to only turn nfc on at the lockscreen. although i'm not convinced nfc uses much battery.
lets see... i'm also using tasker to immediately turn off the display if upside down (in my pocket).
it turns data off if i'm reading an ebook or watching a video.
i use it for 1 click switching between 2g and 4g.
i use it to switch cpu max between 192000, 918000, and 1728000. you can get crazy battery life by running 192000 all day, but everything will run slow. usually i keep it at 918000 and play games at 172800.
there are lots of other things, but that's the battery stuff.
18.4009 said:
Just thought I would post some of my tasker setup to make my battery last a very long time!
First you need Tasker
You also need Secure Settings
And lastly you need Synker
if you want to make my settings super easy to install just download the two attached files and place them on the Sdcard in the Tasker folder.
userbackup.xml
userbackup.xml.txt
then start Tasker, click on the menu button and select Data then restore. This will place all my prebuilt settings in for you.
The first profile I have is Mobile. I have this profile made for when I am in my car but its settings are for anytime power is plugged in.
The things it does is: Turn on GPS, Turn off auto brightness, turn display brightness to max, turn auto sync on, turn media volume to full, turn display time out to one hour.
When unplugged from power it does the following: Turn off GPS, display turns off after 30 seconds, Auto brightness on, Auto sync off, wifi off.
The next setting turns on GPS automatically once maps or navigation is started then turns it off once you exit those apps.
The next one is the big battery saver! When the display is off it Turns off mobile data and wifi.
When the display turns on it will wait five seconds and then turn on mobile data.
lastly I have it setup to turn on mobile data every 2 hours and sync gmail then turn mobile data back off.
I have had tasker for a long time but never really dug into it until I got the SG2. I think this will make your battery last much much longer.
If anyone has better suggestions please add your input.
18.4009
Click to expand...
Click to collapse

Hey ,I just wanna say thanks I was getting 8 hours on a Verizon extended battery but now using your settings and tasker plus extra apps I'm getting 14 to 15 ,I just wanted to add that it in order to use secure setting you have to root your phone but it worth it.
Sent from my SGH-T989 using XDA

I just check my battery stat and it up to 21 hours,I cant believe it thanks again
Sent from my SGH-T989 using XDA

Do you still have these backup files? The links are dead when I try them. I would like to try out your settings.

Reupload please
Sent from my SGH-T989 using Tapatalk 2

Code-hunt
First post and it's a necro asking for something. I swear I used to have an account here in high school.
Anyway, I think those files are gone. Every time I come back to Tasker I try to start from the group up and a day later I'm fiending for backup.xmls/txt just whatever you use for your battery, please, just a quick string of code.

Re upload
Backup files

[WIFI POLICY] Idea for the best Wifi battery save

Now, there are 3 different modes for the Wifi suspension control:
- Never: This option never turn off the wifi connection. So, is better when you are connected to a wifi, but is worse when you are not, because the phone is always searching for connection.
- When it´s not charging: This option turns off the wifi when you turn off the screen, if the phone is not charging, so, is basically like the next option if the phone is not charging, and the first option if the phone is charging.
- Always: This option turn off the wifi always when you turn off the screen. So, is better when you are not connected to a wifi, because the phone isn´t draining battery searching for wifi. But it is worse when you are in a known wifi zone, because the phone is using the data instead the wifi when the screen is off, which drains more battery and waste data of your mobile monthly data.
Neglecting the option of turning wifi on/off manually thorugh the widget, and not using 3rd party apps like juicedefender, I thing the most intelligent and battery saver option depends on your life. So there isn´t a good option for all the people and for all days. For example, I thing the best option for me in the working days is 'Always', because I doesn´t have wifi in my working place, and I spend 10 hours a day on it, so, when I am working, the phone is in my pocket without searching for wifi, but, in the weekend, the best option for me is 'Never', because I spend a lot of time on my house. Finally, for a person who stays the most time of his day in a wifi zone, the best option is 'Never'.
Ok, now I ask, it could be an option that could be the best for all the people? I think the answer is YES:
I think if could be possible to have a mix of 'Never' and 'Always'. I explain, imagine the wifi is suspended at this moment, so you are on mobile data, and you are in your house, for example, and turn on the screen to view the weather. When you turn on the screen, the wifi awakes and connect to your home´s wifi connecion and you view the weather. Now you turn off the screen, BUT, THIS IS THE DIFFERENCE whith the 'Always' option, the wifi DOESN´T turns off, because it is connected at this moment. So, all the time you are at home, since the first screen´s turn on, the phone is connected to the wifi, saving mobile data, and battery, because the wifi drains less battery. Now, you leave your home, and, when the phone lost the wifi signal, turns the wifi off, so, when you are in a not known wifi zone (like the street), the wifi suspends itself for saving battery of wifi searching. The wifi only will search for a known wifi when the screen is on (like now with the 'Always' option) and, if it isn´t connected to a wifi when you turn off the screen, the wifi goes to suspension mode. Now you enter to your home again, with the phone in your pocket, with the screen off, so the phone won´t connect to your home wifi until you turn on the screen, and at this moment, your phone will always be connected to your home wifi until you leave your home again.
I think that is a good idea, and I guess why google doesn´t include something like this in android, it could be the best option for all people in all the situations.
What do you thing about the idea?

I like the idea and I would love to see it implemented! Whenever wifi signal drops out, don't search for it until screen is on.. Would be brilliant!
Sent from my Galaxy Nexus using xda premium

I am pretty sure we can configure a Tasker profile for something like that!

Pat123 said:
I am pretty sure we can configure a Tasker profile for something like that!
Click to expand...
Click to collapse
Probably, but the ideal case would be the option integrated into de system

up

Sounds like a good idea
but for now i use Y5 app

I like the idea, I think its very logical. I fall into the "always around WiFi" group of people though and the "Wifi sleep>Never" options suits me well, If I ever am not in my usual places, I have a wifi toggle on my notif bar for that. One thing I do miss though is the app "WiFi Status", its not compatable with either ICS or the SGN, not sure what the problem is, so I cant use it.