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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.
Was wondering if its possible to keep the wireless still turned on when the phone goes to standby. As in 3G is always on, thus always giving me new emails
Hmm #33 may be able to help you?
http://forum.xda-developers.com/showthread.php?t=583638
PhoTonic said:
Was wondering if its possible to keep the wireless still turned on when the phone goes to standby. As in 3G is always on, thus always giving me new emails
Click to expand...
Click to collapse
Easy....
Download Shap's Advanced Config Tool. There is an option to keep the Wifi on even when the phone goes on standby.
Once Advanced Config Tool installed, launch it, go to Menu/More settings/connections/Enable Wifi on Standby.
also I would recommand you to download a basic freeware named ScreenOff (by Applied PDA software), and use it to turn off the backlight without turning off the Wifi.
I've always having trouble to maintain the WiFi connection whether it's using battery or AC.
I've installed the Advanced Config Tool, the "Enable WiFi on Standby" indicated already enabled. Then I used the ScreenOff. After about 10 seconds, the WiFi connection was lost as I verified it by pinging the HD2 from a PC. It's plug into AC all the time.
However if leave the HD2 just "dim the screen", that seems to be the only way to maintain the WiFi. Obviously set it not to go into standby after 30mins (the default value).
Are you able to maintain the WiFi on HD2?
Yes. No problem here.
when you go into wifi advanced settings you can select power mode. when you set power mode in the medium setting, wifi keeps connected even in standby! and it also doesn't drain your battery while in standby. just try it. first select high power mode and turn phone in standby. wifi connection is lost. when you turn it back in, you will see wifi connecting.
with power in the middle setting, turning phone in standby keeps wifi alive, with very low power consumption. and when you turn phone back on, you will see that wifi is already connected.
i use wifi all the time when at home. my data connection is turned off. and still my push mails are recei ing through wifi!
Not that easy, I tried all power modes and in all occations it whent of after 1 minute (ping timeout). Weird that all roms behave so differently
Speaking of pinging your HD2... when your wifi is enabled and IDLE, what ping results do you get?
My HD2 acts very strange. when my wifi connectivity is on & IDLE (no data activity, device is not in standby mode), my ping results vary from 50ms in average to 200+ and sometimes I'm experiencing even higher spikes of 500ms+.
I have tried to change the wifi's adapter power scheme to "best performance", but it doesn't seem to change something.
However, as long as there is an activity, my ping replies from the HD2 seem to be fine (less than 15/10ms).
Fatherboard said:
Speaking of pinging your HD2... when your wifi is enabled and IDLE, what ping results do you get?
My HD2 acts very strange. when my wifi connectivity is on & IDLE (no data activity, device is not in standby mode), my ping results vary from 50ms in average to 200+ and sometimes I'm experiencing even higher spikes of 500ms+.
I have tried to change the wifi's adapter power scheme to "best performance", but it doesn't seem to change something.
However, as long as there is an activity, my ping replies from the HD2 seem to be fine (less than 15/10ms).
Click to expand...
Click to collapse
seems like some powersaving feature... when idle, why should the wifi chip work at top speed.. just like cpu scaling....
my power saving slider is in the middle and still when the screen goes off and I switch it back on the wifi is reconnecting.
glenner05 said:
when you go into wifi advanced settings you can select power mode. when you set power mode in the medium setting, wifi keeps connected even in standby! and it also doesn't drain your battery while in standby. just try it. first select high power mode and turn phone in standby. wifi connection is lost. when you turn it back in, you will see wifi connecting.
with power in the middle setting, turning phone in standby keeps wifi alive, with very low power consumption. and when you turn phone back on, you will see that wifi is already connected.
i use wifi all the time when at home. my data connection is turned off. and still my push mails are recei ing through wifi!
Click to expand...
Click to collapse
Have you done the ping test from another PC/laptop on your network? Wait for about 1 minute after the screen is off and if you still can ping your HD2, I think it's probably your push mail somehow manage to maintain the wifi connection. I might try that if that's the case as I've tried absolutely everything else and so far abosolutely nothing can keep the wifi constantly on if the screen goes off.
i can still ping it after a few minutes... what you say about push mail and keeping wifi on makes sense... first thing i do when configuring my phone after fresh install is setting up my push mail... maybe that's why my wifi is always on.
You could set up a free gmail push account?
I'm not sure if my problem is related at all but my wifi only seems to connect to my router when it's diconnected from my PC. I'm sure before I upgraded to 1.48 ROM it stayed connected. Any idea guys?
oh, and I've only ever had it in the middle power saving mode and it looks like it does disconnect when it goes into standy.
glenner05 said:
i can still ping it after a few minutes... what you say about push mail and keeping wifi on makes sense... first thing i do when configuring my phone after fresh install is setting up my push mail... maybe that's why my wifi is always on.
You could set up a free gmail push account?
Click to expand...
Click to collapse
I've set up gmail account as well nut as far as I know it's just IMAP or correct meif I'm wrong. if It's not push mail, it'll still kinda polling isn't it? what's your view?
glenner05 said:
i can still ping it after a few minutes... what you say about push mail and keeping wifi on makes sense... first thing i do when configuring my phone after fresh install is setting up my push mail... maybe that's why my wifi is always on.
You could set up a free gmail push account?
Click to expand...
Click to collapse
Good news guys, I've finally managed to get the WiFi to stay on even after the screen is off. Yes the trick is the "push mail". I deleted my original gmail imap account and set up a Microsoft Push Mail based Gmail account. Then did the ping test and it's staying on for sure now. But I did notice that it'll have 1 packet drop occasionally.
wifi disconnecting in standby
my hd2 stayed connected to wifi in standby, then i applied a few tweaks and .cabs, i had a few little issues like the screen freexing and not refreshing so i did a hard reset, since then wifi wont stay connacted when the phone is on standby, it is confusing
Hi I found a solution. Just install this cab. No soft reset needed
Nilee said:
Hi I found a solution. Just install this cab. No soft reset needed
Click to expand...
Click to collapse
Sorry, this does not work.. Goes away after a soft reset
I'm not sure if anyone else knows this, but I read somewhere that if you change the wifi sleep policy to never, it actually SAVES battery.
I thought this was insane, but if you think about it it actually makes sense. It stops your phone from the constant switch to Edge and 3G... which in return saves your battery.
Usually I can lose up to 5% in 30 minutes by not even using my phone.
Now that I have a constant wifi connection I have only lost 2% in an hour and a half.
Assuming you're connected to a wifi network, yes.
Otherwise, no.
JCopernicus said:
Assuming you're connected to a wifi network, yes.
Otherwise, no.
Click to expand...
Click to collapse
I'm not sure how that works when you're not connected to a network and the phone goes into sleep...
I use Y5 which uses cell towers to remember where I am able to receive wifi. If I leave a remembered spot it will turn off the radio for me. When I come back it will automatically turn it back on and reconnect.
lance713 said:
I'm not sure if anyone else knows this, but I read somewhere that if you change the wifi sleep policy to never, it actually SAVES battery.
I thought this was insane, but if you think about it it actually makes sense. It stops your phone from the constant switch to Edge and 3G... which in return saves your battery.
Usually I can lose up to 5% in 30 minutes by not even using my phone.
Now that I have a constant wifi connection I have only lost 2% in an hour and a half.
Click to expand...
Click to collapse
Hmmmm
Wouldn't the phone continue to have it's cellular Edge/3g connection going while you have the WiFi on?
Whenever I have WiFi on in addition to 3g I always see, under battery usage, wifi at about 2-3% and Cellular signal at 5-6%
Seem's like when you have WiFi on as well as Data that both are draining the battery...
The phone turns off 3g radio when you have a data connection.
JCopernicus said:
The phone turns off 3g radio when you have a data connection.
Click to expand...
Click to collapse
Are you sure about that? I'm connected to WiFi on my phone and the Status screen under About Phone still stays UMTS rather than EDGE.
PrawnPoBoy said:
Are you sure about that? I'm connected to WiFi on my phone and the Status screen under About Phone still stays UMTS rather than EDGE.
Click to expand...
Click to collapse
UMTS is just the 3g network, that doesnt mean data. the 3G network is used for voice calls too.
so yes, when the phone is connected to wifi, the cellular data connection is terminated. always been like this.
and yes i've seen a huge battery increase with wifi set to NEVER sleep policy.
It will stop hop between 2G/3G even if you're not using the data. You'd have to force it to 2G only and then enable wifi to take advantage of this the most.
I second those findings. When at home, use no sleep policy, and going out - turn off wifi manually. Works very well.
My "always on while sleep" doesn't work.. it opt's out anyway..
Edit: Installed an app called Wifi Fixer. And my connection hold up now while sleeping. nice....!!!
Where do I find this sleep-setting?
Not looking for a flame because I'm still learning.
if you have juicedender and keep the wifi setting on what it is when your phone sleeps the phone will turn off wifi and juicedefender will turn of 2g/3g correct? If this is true then you can save double the battery by installing defender (free); right?
bberry said:
Where do I find this sleep-setting?
Click to expand...
Click to collapse
Go into Wi-Fi settings.. Hit Options (the capacitive button you know...)
Ha! I've had my N1 for two months now and didn't realize there was more Wifi options if you click on the options button to the left of the home button. I wish they would add some sort of indicator that there's more to do if you click on that button. I've run into this soooo many times. It's kind of nice, though, because I keep finding goodies even months after buying the phone lol.
Yes it's often a mystery - it would be cool if it was possible for the capacitive menu button be lit only when there are additional options.
Sindroid said:
My "always on while sleep" doesn't work.. it opt's out anyway..
Edit: Installed an app called Wifi Fixer. And my connection hold up now while sleeping. nice....!!!
Click to expand...
Click to collapse
..will try that Wifi Fixer too
kbeeveer46 said:
Ha! I've had my N1 for two months now and didn't realize there was more Wifi options if you click on the options button to the left of the home button. I wish they would add some sort of indicator that there's more to do if you click on that button. I've run into this soooo many times. It's kind of nice, though, because I keep finding goodies even months after buying the phone lol.
Click to expand...
Click to collapse
First rule of Android power-users:
Press Menu... Everywhere
Paul22000 said:
First rule of Android power-users:
Press Menu... Everywhere
Click to expand...
Click to collapse
I tried that on a hottie standing in line for coffee. I got slapped.
I've tried setting the wifi sleep policy on my phone (T-Mobile MyTouch Slide) to "never sleep," but I'm not sure it's helping. When I turn on wifi for a little while (say, an hour or two) and then look at the battery usage screen I see that wifi uses a pretty significant chunk of the battery, maybe 10% or so, higher if I leave it on for longer. This is even if I'm not using the connection much, sometimes I'll turn it on to do a little light browsing and then put the phone away for an hour and then check to see how much power the wifi connection ate. Today I turned on wifi for maybe 10 minutes to download a couple app updates and turned it off right afterward. The phone has been only off the charger for 3 hours, but wifi accounts for 8% of the battery drain (the rest is idle: 16%, standby: 31%, and display: 45%).
On the other hand if I stick to 3G data I don't feel like I see as much of a hit on the battery (though it's harder to tell how much of "standby" is going to 3G data).
I understand in theory that connecting to a wifi access point within the building should require less power than connecting to a cell tower a mile away, but I also disable "always-on mobile data" so hopefully I'm not maintaining a 3G data connection all the time either.
Those of you who leave the wifi connection on all the time and are reporting better battery life than with 3G data, how much of your battery do you see going to wifi in the battery usage screen?
Well for me when I leave WiFi set to never, I lost 11% in 12 hours. On 3g I lose way more in that same period.
Hi,
I just got the focus couple days ago and have a question:
when you use the WIFI connection (at my house for example), does the phone turn off the 3G? does it use both? how does it work?
3G still remains on/connected providing your carrier and phone support 3G. when wifi is on and connected, it takes over 3G connection for data till you disconnect wifi again.
powersquad said:
3G still remains on/connected providing your carrier and phone support 3G. when wifi is on and connected, it takes over 3G connection for data till you disconnect wifi again.
Click to expand...
Click to collapse
Yes and no.
There's a bit of a design flaw in WP7 that is catching many users by surprise.
What you're saying is correct when you're using the phone. WiFi takes precedence over 3G for data.
But, and this is the surprise, when the phone goes to sleep (mine's set to the maximum of 5 min), it turns the WiFi off, meaning 3G takes over.
Many people learn this the hard way, because they'll start some large download and leave the phone alone. At some point, the phone goes to sleep (the display turns off, basically), which turns off the WiFi, and now your download is switched to complete via 3G. Many people are wondering on the various forums why they leave their phone (say overnight) thinking it's on WiFi, and wake up to a surprise data usage number on 3G.
If your wireless router has a status screen to monitor live connections (I use DD-WRT, which does), you can see this behavior for yourself.
It gets better! If you're a "normal" user who plugs in your WP7 to charge up the battery overnight, you'll notice you can't turn the phone off. So, without taking any specific action, you have absolutely positively no choice but to burn 3G usage during the time period that the phone's plugged in, but not in actual use.
The workaround, if you're really tight on data usage, is to turn off your cell/3G manually, or switch to Airplane Mode, or stick your phone in a lead-lined box (okay, maybe not lead, but you get the point).
Brad.
I am frustrated with this too. I wish there was a simple toggle switch, application , that would simply turn one of them on and the other off without going into settings everytime.
This is very interesting (and a little worrying). How can I check my data usage from the phone?
Data usage
Dial *3282# and hit call
A text will come in with usage.
I make a habit of turning 3G off unless I need it, just to avoid 3G being used over WiFi or apps auto updating.
bpsmicro said:
Yes and no.
There's a bit of a design flaw in WP7 that is catching many users by surprise.
What you're saying is correct when you're using the phone. WiFi takes precedence over 3G for data.
But, and this is the surprise, when the phone goes to sleep (mine's set to the maximum of 5 min), it turns the WiFi off, meaning 3G takes over.
Many people learn this the hard way, because they'll start some large download and leave the phone alone. At some point, the phone goes to sleep (the display turns off, basically), which turns off the WiFi, and now your download is switched to complete via 3G. Many people are wondering on the various forums why they leave their phone (say overnight) thinking it's on WiFi, and wake up to a surprise data usage number on 3G.
If your wireless router has a status screen to monitor live connections (I use DD-WRT, which does), you can see this behavior for yourself.
It gets better! If you're a "normal" user who plugs in your WP7 to charge up the battery overnight, you'll notice you can't turn the phone off. So, without taking any specific action, you have absolutely positively no choice but to burn 3G usage during the time period that the phone's plugged in, but not in actual use.
The workaround, if you're really tight on data usage, is to turn off your cell/3G manually, or switch to Airplane Mode, or stick your phone in a lead-lined box (okay, maybe not lead, but you get the point).
Brad.
Click to expand...
Click to collapse
correction:: When you plug in your phone for charging the wifi stays ON even during standby, so 3G data is not used during this period.
@pigue
"Dial *3282# and hit call
A text will come in with usage."
That didn't work for me... I'm in Canada on Rogers. Is the number different up north?
im having problem with my 3g data.brought in my phone to my service provider.they couldnt fix my data because they were looking for the proxy and port.but they can only the apn settings.pls need help.im paying for data and im not able to use it.
BenJG said:
@pigue
"Dial *3282# and hit call
A text will come in with usage."
That didn't work for me... I'm in Canada on Rogers. Is the number different up north?
Click to expand...
Click to collapse
Sorry this is for AT&T....
cbebop7 said:
correction:: When you plug in your phone for charging the wifi stays ON even during standby, so 3G data is not used during this period.
Click to expand...
Click to collapse
Thanks for that clarification. I spent a bit of time yesterday monitoring my WiFi connections and it appears as though you're quite correct, WiFi does stay on the phone's when plugged in. That's a tolerable workaround.
Pity none of this is actually documented, and we're all forced to figure this out for ourselves.
Brad.
bpsmicro said:
Thanks for that clarification. I spent a bit of time yesterday monitoring my WiFi connections and it appears as though you're quite correct, WiFi does stay on the phone's when plugged in. That's a tolerable workaround.
Pity none of this is actually documented, and we're all forced to figure this out for ourselves.
Brad.
Click to expand...
Click to collapse
I read about this in the documentation for the wifi sync somewhere. Can't remember if was M$ documentation, though.
This tip is one that seems counter-intuitive, but you can save a lot of wear and tear on your Android phone's battery if you tell it to keep the Wifi radio turned on and connected while the phone is sleeping. Your phone needs a lot of juice to keep pinging those cell towers, and even more to transmit data to and from them. Wifi radios use much less power because of their design, and they don't have to keep searching for a better access point. It's the way cellular data communication was designed, and it's a necessary evil.
But what if you're spending all day (or all evening) in one place, connected to Wifi? If you tell your phone to shut off Wifi when idle, it bounces back to cellular data (be it 2G, 3G, or 4G) and starts sucking down the electrons again when the screen shuts off. That's no good, and easy to fix:
Open the advanced Wifi settings by pressing the menu button, then Settings, Wireless & networks, Wi-Fi settings, and tapping the menu button again. You'll have a choice to either Scan, or go Advanced -- go Advanced.
Tap the Wi-Fi sleep policy entry, and you'll get a pop up dialog with the 3 choices. Choose Never.
Now even when your phone goes into standby mode, you'll stay connected to Wifi and be able to get mail and messages without turning the cell radio back on and trouncing your battery life. And for the times when you're not in an area with a Wifi connection, just shut Wifi off, either through the menu or with a handy toggle widget. Your battery will thank you for it.
#Its only for those beginners who dont know about this setting...
dont you mean tick always, as if you tick never itll go back to using your dataplan instead of the wifi
Re: [Guide] Save Battery By Keeping Wi-fi Alive
I use to believe this but for some reason on my sgs3 wifi drains more battery I get more juice with wifi off.
Results may very due to your services supporting fast dormancy, etc.
Sent from my GT-I9300 using xda app-developers app
Re: [Guide] Save Battery By Keeping Wi-fi Alive
koolshubh said:
This tip is one that seems counter-intuitive, but you can save a lot of wear and tear on your Android phone's battery if you tell it to keep the Wifi radio turned on and connected while the phone is sleeping. Your phone needs a lot of juice to keep pinging those cell towers, and even more to transmit data to and from them. Wifi radios use much less power because of their design, and they don't have to keep searching for a better access point. It's the way cellular data communication was designed, and it's a necessary evil.
But what if you're spending all day (or all evening) in one place, connected to Wifi? If you tell your phone to shut off Wifi when idle, it bounces back to cellular data (be it 2G, 3G, or 4G) and starts sucking down the electrons again when the screen shuts off. That's no good, and easy to fix:
Open the advanced Wifi settings by pressing the menu button, then Settings, Wireless & networks, Wi-Fi settings, and tapping the menu button again. You'll have a choice to either Scan, or go Advanced -- go Advanced.
Tap the Wi-Fi sleep policy entry, and you'll get a pop up dialog with the 3 choices. Choose Never.
Now even when your phone goes into standby mode, you'll stay connected to Wifi and be able to get mail and messages without turning the cell radio back on and trouncing your battery life. And for the times when you're not in an area with a Wifi connection, just shut Wifi off, either through the menu or with a handy toggle widget. Your battery will thank you for it.
#Its only for those beginners who dont know about this setting...
Click to expand...
Click to collapse
You need to choose "Always", not "Never". If you choose "never", then it disconnect wifi as soon as display is turned off.
SlimJ87D said:
I use to believe this but for some reason on my sgs3 wifi drains more battery I get more juice with wifi off.
Click to expand...
Click to collapse
If you're moving out of wifi range, or in and out of wifi range, turning wifi off will use less power as associating with an AP has a high energy cost. But as the original poster says, if you're going to be sitting in one place all day e.g. at home or at the office where your phone will always be connected to an AP, leaving wifi on and always connected will use less power than 3G.
More details here:
http://people.cs.umass.edu/~arun/papers/TailEnder.pdf
I suppose it's not that surprising. I'm sure many of us, after buying a new phone, have left the old one sitting around at home without a SIM card but connected to wifi, still polling emails and everything. The battery lasts ages!
Re: [Guide] Save Battery By Keeping Wi-fi Alive
This might be irrelevant, but i red an article her in xda about modern mobiles battery long time ago.the article said that when wifi on or off has no significance effect on battery life (regardless of other sitting like carrier signal .....etc)
Sent from my GT-I9000 using Tapatalk 2
SlimJ87D said:
I use to believe this but for some reason on my sgs3 wifi drains more battery I get more juice with wifi off.
Results may very due to your services supporting fast dormancy, etc.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Apparently FD doesn't affect battery life that much (See here, second post). I get better battery life on wifi and I think that's still the case for the majority of people if they are within a wifi area.
I tried and with option "always" I have more battery drain, cca. 2%/h in idle/screen off/overnight. With old setup when Wi-Fi is off in case screen goes off, I have cca. 1.6%/h. So, it doesn't work for me. Thanks anyway.
What ive found is to turn your 3g to 2g, that will save a LOT of battery. I use 3g if im out and about where theres no wifi, if im at work i dont use my phone often so switch 3g to 2g. It still brings my notifications in time. And at night switch to 2g as well.
Re: [Guide] Save Battery By Keeping Wi-fi Alive
Raz88 said:
What ive found is to turn your 3g to 2g, that will save a LOT of battery. I use 3g if im out and about where theres no wifi, if im at work i dont use my phone often so switch 3g to 2g. It still brings my notifications in time. And at night switch to 2g as well.
Click to expand...
Click to collapse
But that's a no brainer! Of course battery life will last a lot longer on 2G! Your battery life will also last a lot longer if you have no data connectivity. The discussion here is between data and wifi.
Sent from my GT-I9300
Thanks good tip