Database Users

WiFi kills battery when Universal is switched off?

Hi there,
With my BlueAngel I could leave the WiFi on all night as when the phone was switched off it did not eat up the battery - when the phone was switched on it would spend a couple of seconds reconnecting to the wireless point.
The Universal seems to behave in the same way, yet it eats up all the battery overnight even when I have switched the phone off and it is not connected to the WiFi access point.
Is there some setting or registry key I can alter to fix this?
Cheers,
Quilty

@Qulity, if you don't close PIE I have found the battery can be drained. I assume overnight you are using Flight Mode.

Are you closing the flip and presuming that the device gets turned off or have you actually set your device to turn off after a fixed period of inactivity in the power settings?
If it is the former, then the device actually does not turn off if there is any activity in the background like active GPRS or WiFi etc. A simple solution to this would be to press the hard-ware on/off button once you are done irrespective of whether wfi is active or not in the background.
Try it out and post your results here.

My device is set to turn off after 2 mins on battery power, but I made a special point of turning it off with the hardware button before testing last night. As I said before my BlueAngel never behaved like this.

my jasjar was turned off yesterday, and every 5min i heard sound for new wifi network!! same problem, i solved it with turnig wifi off!! any other solutions?

Wireless disconnects when screen turned off

Hey, tried to search about this but had no luck.
Whenever my blackstone gets the screen turned off by power saving it also disconnects from the Wi-Fi network currently connected to.. then it reconnects when I turn the screen back on again.
Is there a setting to avoid this? Pretty annoying when using msn messenger. Would like to be connected even with screen turned off.
Thanks for any input!

stylesp said:
Hey, tried to search about this but had no luck.
Whenever my blackstone gets the screen turned off by power saving it also disconnects from the Wi-Fi network currently connected to.. then it reconnects when I turn the screen back on again.
Is there a setting to avoid this? Pretty annoying when using msn messenger. Would like to be connected even with screen turned off.
Thanks for any input!
Click to expand...
Click to collapse
You can download HD Tweak it has an option to keep wifi connected when your phone sleeps, plus many other tweaks well worth the download
Just search for HD Tweak

Just keep in mind that wifi drains your battery pretty quick and with wifi constantly on it shouldn't last a day.

Wifi wont turn off in sleep mode

Hi Guys,
I got my HD2 today and i have to say i am impressed!
I only have one problem which i am not able to resolve.
When i turn on WiFi, it wont turn off during sleep mode (when i turn off the screen). i need to manually turn it on or off. this is how it came out of the box.
I wonder if other HD2 users are having the same problem / found a solution?
I tried advanced config tool, and i unchecked the "wifi during sleepmode" setting, but after each reboot the settings just come back.
Any help would be appreciated.

Hi mate, you should look this
http://forum.xda-developers.com/showthread.php?t=582108
I thought that guy just want to keep WIFI on but you did.

thanks man but it does not help me with my problem. I cant seem to be able to get WiFi to auto turn off when in standby. the reg tweak will work until you reboot the device. after reboot the WiFi again won't turn off when in sleep mode unless I manually turn it off.

Bump.
Can any other HD2 owner please confirm if this is happening on his device too?

Same problem.
HDtweak and AdvanConfig does not work. After soft reset, wifi-on-standby is back ON (checked).
Been trying to find a Auto-Disconnect for GPRS(HSDPA) but the above 2 apps does not work too.

have you tried to change wifi power settings to high? I think it does work then. I guess the medium setting is something special...it keeps the wifi connection alive in standby, but also doesn't consume much power. I have an exchange connection active, so i always need an internet connection. The moment i turn on wifi at home, it stays on, even in standby, and my data connection over 3G disconnects. My exchange still works perfectly...and no huge power drain! My wifi power setting is on the medium setting...

Yes, I can confirm I'm encountering this issue too - on my HD2.
Strange, 'cos I wasn't at first, I'm sure - I remember the wi-fi notification icon flashing when resuming from sleep.
glenner05, can you confirm that you can get wi-fi to sleep please?

Hmm.. thought it might be connected to the htckeepwifionwhenunattended registry value but mine's set already to 0.
There're others trying to do the opposite!
(http://forum.xda-developers.com/showthread.php?t=524490)
Anyone else found a solution?

I think HTC made this by design. If you turn GPRS data off and leave Wifi on while in standby you will be surprised how low the power utilization is.
I tested and with GPRS data off and Wifi ON, in standby you lose about 2% battery per hour...that's nothing.
It seems that on the HD2 the Wifi power consumption is really optimized so no real need to turn

I think HTC made this by design. If you turn GPRS data off and leave Wifi on while in standby you will be surprised how low the power utilization is.
I tested and with GPRS data off and Wifi ON, in standby you lose about 2% battery per hour...that's nothing.
It seems that on the HD2 the Wifi power consumption is really optimized so no real need to turn

Mine is on default Wi-Fi settings and when it goes into standby, wi-fi goes off.
Paul

Yeah goes of in sleep mode, if you get wifi toggle, you can choose to keep it on or turn it off when you like .
Shame the grps is still a problem....

pgamble and jrvenge: you really mean wifi switches off on the device when it goes to sleep? Ie. you see it disconnect from your router or something?
jrvenge: what did you mean by, "if you get wifi toggle"?
clubtech: when I read your post I agreed with you, maybe. I can't now be certain I remembered correctly that I'd seen wifi reconnect. And yes, the power consumption does seem low

There is a cab floating about here that enables you to force the wifi on always or turn it off.
If you forc on it stays on, if you turn of it goes off.
Return to normal and the hd2 does its power saving thing, so im all sorted there, just need a timeout on the gprs now.
If you cant find it let me know. It works a treat.

can youplease post the cab ? I have been looking for something like this .

Sure pm me your mail and i will send it

GPRS Disconnecting software here fella's, tested and working on my HD2 100%
May also turn off wifi but i've not loked yet, just about to leave for work so will check later!! lol
http://forum.xda-developers.com/showthread.php?t=587018

Ok just tried and it does not do what we want with WiFi

Yes ... if device goes to standby, when it comes out .. you see wi-fi searching to connect again ... so it definitely disconnects and the reconnects when it comes on again.
Paul.

Yup your right!
If it's in balanced or best battery mode then it turns off in standby and reconnects/searches again when you press a button to bring up the lock screen.

Found Small Problem After 3.2 Update

I always have had my tab set to turn off wifi when screen goes off,
and it has performed flawlessly.
Now - after the 3.2 update - When the screen goes blank,
the wifi does not turn off and it stays connected.
Does anyone else have this problem ? is there a fix ?

My issue is the tablet is set to turn wifi off when screen turns off.
Always worked perfectly.
Now after 3.2 when you wake it the wifi does not turn on, says out of range.
You have to click wifi on/off to reconnect.
Fix one thing and break another.
Stock tablet.

confirmed.
My tab is also set to turn off wifi when screen is off.
Same deal, it does not reconnect. Sometimes it does reconnect but he status bar says no internet connection.

Had the same problem after updating to KMM and now again with the new KMM (KMN).
But since wifi standby consumes almost no battery, I just leave wifi on "always on" (network notification switched off). It's only a workaround but with no real drawbacks.

I'm on Task 6.1 rom and its all good no wifi issues.

Question? How do u know if it turns off or not.

network scan

Same problem here.
After I turn on my tab, it does not reconnect immediately. Have to wait 1-2 minutes, then it reconnected.
Faster is to manually turn wifi off and on again.
Sent from my HTC Desire using Tapatalk

Same here. Just upgraded the other day, have to leave wifi on or manually switch it off and on. Nice update samsung

Yep. Same issue here. I'm thinking of leaving wifi on all the time and checking the difference in battery life.

3.2 has had issues with wifi since day one. Use one of the custom rom, I use Task 6.1 and the problem went away. You can always revert to 3.1

[Q] Bluetooth GPS Disconnecting when screens off

Running a Nook Color with CM7.1 stable. Kind of an odd issue here, I have two different Bluetooth GPS devices, and when they are paired to the Nook and I turn my screen off and then back on, it loses the connection. The only way to reconnect the devices is to restart the Nook, as it fails to connect after the screen is brought back up. I have found that if I have the Nook plugged in for power, this issue does not happen. I have tried multiple GPS apps, reflashed CM7.1 multiple times, but still have no success unless I have the Nook plugged in, or I just ensure the screen doesnt go to sleep.
I really need this to work, as I'm using this as a pilot, and I can't have the screen on the entire flight as it will drain the battery quickly. I swore it used to work before, but I know I had issues with it, and maybe now realize what was causing those issues. On a side note, my friend has also tested everything I have done, but his works consistently and reliably regardless if he leaves the screen off, or turns it on and off repetitively. Hopefully someone may have an idea!!
Thanks in advance.

So noone has any thoughts or ideas at all?

Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!

jgore43 said:
Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!
Click to expand...
Click to collapse
That's what I was thinking too. It seems that when NC goes into deep sleep Bluetooth will lose connection. By removing deep sleep you should be able to stay connected, although your battery will drain faster than with deep sleep on, it should have a better life with screen off than on.

Well I appreciate both of your responses. However, I should have mentioned that I do already have Wi-Fi set to always stay on/never sleep. Any other suggestions?