Database Users

Can you charge with phone turned off?

Hi,
As everyone will probably know, the x10 automatically turns on when you put the phone on charge.
I'm just wondering if there is a way to turn the phone off permanently e.g. so it only turns on when manually turned on.
I find that when my phone fully charges at night and is left with charger connected, the battery drains really quickly and when it gets to about 90% it starts charging again, this really bugs me. So I was wondering if anyone knows of a way to turn this auto feature off, so I can just turn my phone on in the morning and have it fully charged.
Sent from my X10i using XDA App

Have you tried turning the phone off after you plug it in...? I haven't so I can't say whether it works or not, but it isn't a problem for me either...
BTW, the drain to 90% is a feature to stop the phone from overcharging and destroying the battery...

At the moment you can not charge your phone while it is off. Regarding the post above, it might not be implemented in the future either since you will have a risk of crushing your battery.
What you could try turn off all what you can (wifi, bluetooth, 3G and applications), this should make the battery drain less.
I haven't tried this myself, but you could also try restarting it before charging. The idea is to leave it charging while the pin code still is asked. This should keep wifi and the other basic functions like 3G disabled. This should decrease the drain usage.
You could also change the profile into flight mode, this should have the same effect unless some applications are prevented from starting up without your pin inserted.
Turning off the phone while it is being charged will just turn it on again.

Gentimp said:
At the moment you can not charge your phone while it is off. Regarding the post above, it might not be implemented in the future either since you will have a risk of crushing your battery.
What you could try turn off all what you can (wifi, bluetooth, 3G and applications), this should make the battery drain less.
I haven't tried this myself, but you could also try restarting it before charging. The idea is to leave it charging while the pin code still is asked. This should keep wifi and the other basic functions like 3G disabled. This should decrease the drain usage.
You could also change the profile into flight mode, this should have the same effect unless some applications are prevented from starting up without your pin inserted.
Turning off the phone while it is being charged will just turn it on again.
Click to expand...
Click to collapse
I think the drain to 90% will be exactly the same even if you do turn things off... the way I have my phone set up, it actually drains slower once unplugged... In short, I think you're stuck with it...

Download an app called hibernate. PM me if you cant find it but search google, it is there. One touch of its short-cut of widget and you can then tell all radios off and make the screen turn off quicker. Everynight when I go to bed I put the phone in hibernate and plug charger in. When I wake up I have 97% battery, sometimes more.

Do you have a battery widget installed because I read on one of the forums that this stops it charging, so once I removed mine the phone would charge to 100%.

Battery Drain, almost solved. Need help from Dev.

Hello Everyone.
There is a battery drain issue in in cell standby and I think I just solved the issue. Let me go back to when I last experienced such an issue. It was when I flashed a ROM for my SGS1 Captivate called Cognition. There was a bug that left wifi not only on but it was active during sleep mode.
http://forum.xda-developers.com/showthread.php?p=12294219
It was later solved by the Dev and the draining went away.
What is different here is that the SGS3 only has this bug when wifi is on. Look at my battery charts when I have wifi on and wifi off. The red area shows the slope with wifi and the blue area shows it without wifi. This is during standby times.
So is this due to the wifi dual banding just taking up more battery? Or is the phone not properly tuning the wifi down in standby? Solving this issue is out of my hands now and I will have to hand this over to someone else.
For now, change your wi-fi sleep policy to shut off when in sleep mode.
EDIT:
So I think i figured out why the wakelocks are happening. Other people have the problem with dynamic IP addresses.
http://androidforums.com/samsung-galaxy-s3/563008-battery-saving-tip-really-works.html

I don't know why these other fanboy war threads are bumping and so popular but a serious problem doesn't even get a response or a second look. Does anyone else have any comments on how we can get this fix? We need Samsung to fix this problem too.

I will make this post for two reasons;
To bump the topic
To say that i would also like this "bug" to be solved

SlimJ87D said:
I don't know why these other fanboy war threads are bumping and so popular but a serious problem doesn't even get a response or a second look. Does anyone else have any comments on how we can get this fix? We need Samsung to fix this problem too.
Click to expand...
Click to collapse
hi slim,
I agree with you here as well. However I've not noticed any battery drain. I've got about 35% left after good full day of use.
Sent from Rooted debloated stock Galaxy S3 OG I9300

SlimJ87D said:
Hello Everyone.
There is a battery drain issue in in cell standby and I think I just solved the issue. Let me go back to when I last experienced such an issue. It was when I flashed a ROM for my SGS1 Captivate called Cognition. There was a bug that left wifi not only on but it was active during sleep mode.
http://forum.xda-developers.com/showthread.php?p=12294219
It was later solved by the Dev and the draining went away.
What is different here is that the SGS3 only has this bug when wifi is on. Look at my battery charts when I have wifi on and wifi off. The red area shows the slope with wifi and the blue area shows it without wifi. This is during standby times.
So is this due to the wifi dual banding just taking up more battery? Or is the phone not properly tuning the wifi down in standby? Solving this issue is out of my hands now and I will have to hand this over to someone else.
For now, change your wi-fi sleep policy to shut off when in sleep mode.
Click to expand...
Click to collapse
I'm experiencing some kind of battery drain too with sgs3, but mine it's not wifi related. I have as first voice in battery stats page Cellular Standby. I mean, it's almost impossible it drains more then the screen!
Anyway, giving a look at your screenshot, I can clearly see some areas you didn't red boxed when wifi was on, screen was off but battery drain was not terrible at all.
How do you explain them?!
Looking at your screenshot

ceo.mtcl said:
hi slim,
I agree with you here as well. However I've not noticed any battery drain. I've got about 35% left after good full day of use.
Sent from Rooted debloated stock Galaxy S3 OG I9300
Click to expand...
Click to collapse
Yeah, I mean my battery life is still good, but I know it can be better. Now that I made it turn wifi off when it's asleep the battery life, the slope you can see there in blue, is a lot better. It's not so slanted and draining as quickly.
A lot of other people that complained about bad battery life I noticed the same trend, it's their wi-fi also. If you notice the long blue line on the bottom, that's when wi-fi is active and those extreme slopes have to be caused by wifi. Cell standby shouldn't be draining the battery more than the screen I don't think.
It's either wi-fi, the radio or both.

Aratheba said:
I'm experiencing some kind of battery drain too with sgs3, but mine it's not wifi related. I have as first voice in battery stats page Cellular Standby. I mean, it's almost impossible it drains more then the screen!
Anyway, giving a look at your screenshot, I can clearly see some areas you didn't red boxed when wifi was on, screen was off but battery drain was not terrible at all.
How do you explain them?!
Looking at your screenshot
Click to expand...
Click to collapse
I don't know, I guess that is when the wifi properly shuts itself off.
When I look at my screen while I'm not doing anything at all I can see the orange arrow on the wifi on, and it stays on even though I'm not using the internet or anything. What can that mean? Is the orange arrow "uploading" or "downloading?"
EDIT: It's downloading. And I set the wifi to shut off if the screen shuts off. The Wifi sometimes shuts off. But right now it refuses to turn off even in sleep! And the orange arrow is lit up!

How do you get the wifi to shut off when the screen shuts off?
Sent from my GT-I9300 using XDA

uf21 said:
How do you get the wifi to shut off when the screen shuts off?
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
It's there in advanced wifi settings.
Did any of you people tried flashing different modems to resolve this?
《tapatalked from galaxy s3》

If you turn off the wifi then wont it just use the normal data connection and so use more battery? I was led to believe that using wifi was less demanding than say 3g.
Sent from my GT-I9300 using xda premium

hpsauce37 said:
If you turn off the wifi then wont it just use the normal data connection and so use more battery? I was led to believe that using wifi was less demanding than say 3g.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Yes that is correct, but read my OP and the thread I posted. A wifi bug is the wifi not powering down in sleep mode. It stays on at full power during sleep and drains your phone.
Sent from my GT-I9300 using XDA

Just a thought. Dont all phones stay conne ted wifi while the screen is locked?

uf21 said:
Just a thought. Dont all phones stay conne ted wifi while the screen is locked?
Click to expand...
Click to collapse
No, some turn off the wifi radio if the phone goes to sleep
Sent from my GT-I9300

I tried a couple of modems, but in vain. Cell Standby is always much too high. Wifi is beyond good and evil.
I would by now also lean towards a bug. Unfortunately I'm not a Android dev. My knowledge ends at developing apps.

I am satisfied with mine

ive noticed smth:
with Droidwall blocking everything -> still wlan sends smth & causes traffic
hows that possible? u guys can experience the same?
under 3g/edge and droidwall everything blocked: no traffic anymore -> everything is ok!

Have any of you guys tried easy battery saver? One of the features is to disable radios when screen is off. I wonder if it is more successful in doing this than the built in setting.

I got the same cell standby problem so I went ahead and flashed Omega ROM, yesterday was my first day full with that ROM and the result was quite good. I ended up with about 45% battery after about 15-16 hours. Well I'm on wifi for like 3-4 hours though.

Drain caused by exchange sync process. Kill this process and see how battery life will change. Sorry for my english.

Curious, which F/W are you on? I was getting oddball WIFI battery drain using an older LE9 insecure kernel to root at first (WIFI would actually shut off and come back on after coming out of idle... even though I had it set to "always on.")
Completely went away after I flashed back the stock LEF kernel that my phone shipped with.
For reference below, no drain issues during idle with WIFI left "always on."

WIFI automatically turning ON when phone battery hits 15%

as soon as my S5 phone hits the first low battery warning at 15%, the WIFI automatically turns on
makes no sense since that would drain the battery even faster
already checked all setting to make sure any auto switches are off
anyone else heard of this problem and know how to keep the wifi from turning on by itself?

nobody?

ok in case anyone else runs into this, i figured it out
after nobody replied i figured it had to be an app i had that not too many people use
after uninstalling one by one when my phone was hovering around the 15% mark, the culprit turned out to be:
prey anti-theft....a useful app, but now useless

Heavy Standby Drain in Airplane Mode with WiFi-Calling

Can someone confirm if this issue exists on their device?
I live in an area with no cell service so I put my device in airplane mode and use WiFi Calling. This worked great for my OnePlus 5T. Now with my 6T I get very heavy battery drain when I do the same. Somewhere between 2 and 4 percent an hour. If I have good cell reception and airplane mode off I don't get any standby drain, like it should be. I have attached a screenshot of the drain while my phone was in standby. The red boxes highlight when it was in airplane mode with WiFi Calling.
I would like to figure out if it is just my device with the issue or if everyone is affected. I am on MetroPCS if that makes any difference.
Trying to figure out if this has to do with Magisk, or maybe my DTIM and Beacon intervals I set in my router. No apps are holding wakelocks, phone is active less than 5% when screen off. I will factory reset if a few people state that they do not have this issue.
Can someone reproduce these steps and let me know if you get heavy standby drain?
1. Enable WiFi Calling.
2. Turn airplane mode on.
3. Turn WiFi back on.
4. Make sure you are connected to WiFi Calling.
5. Check current battery level.
6. Turn screen off and leave phone for an hour or more.
7. Check to see if battery went down more than 1%.
Thank you!

In case anyone else has this issue it seems that the heavy drain was due to a DTIM interval of 50 that I had set on my access point. Setting it back to the default of 1 seems to have stopped the heavy standby drain.

I was thinking of buying a OP6T and using WiFi calling as I have no cell/4G coverage at home to try and avoid standby drain issues I have had with previous android phones. Stupid question, why do you need to enable aeroplane mode? Does the phone not switch automatically to WiFi calling when it finds no cell signal like iPhones do? Surely forgetting to turn off aeroplane mode causes problems. What are your experiences in general with WiFi calling on this phone? What sort of battery drain are you looking at overnight using WiFi calling? Do you have any other tips for minimising standby drain when you have no cell coverage?

Percy247 said:
I was thinking of buying a OP6T and using WiFi calling as I have no cell/4G coverage at home to try and avoid standby drain issues I have had with previous android phones. Stupid question, why do you need to enable aeroplane mode? Does the phone not switch automatically to WiFi calling when it finds no cell signal like iPhones do? Surely forgetting to turn off aeroplane mode causes problems. What are your experiences in general with WiFi calling on this phone? What sort of battery drain are you looking at overnight using WiFi calling? Do you have any other tips for minimising standby drain when you have no cell coverage?
Click to expand...
Click to collapse
I enable airplane mode to prevent the phone from draining looking for cell service that it will never find. It will automatically switch to WiFi-calling but it will still constantly scan for cell signal just wasting battery, all phones operate like this.
Wi-Fi calling works great for this phone. The only issue I have is that MMS for T-Mobile/MetroPCS does not work. Calling and SMS work 100%.
I usually loose between one and three percent batter overnight (about six to eight hours) with airplane mode on with Wi-Fi on and Wi-Fi calling connected.
To minimize standby drain with no cell service just put your phone in airplane mode and then turn Wi-Fi back on so that Wi-Fi calling connects. This tip would work with pretty much every phone.
I hope this helped!

Thanks for the information. Did WiFi calling work automatically on your phone or did you have to contact your airtime carrier to set it up? Can you please confirm that with aeroplane mode on you can make/receive phone calls and send/receive sms messages. I need to stay in touch and have good battery life, not one at the cost of the other. I don’t really send mms messages so that is not a problem. What is the DTIM interval you mention on your router/AP and how does this affect the phone? I will be choosing between OPT6 and the P20 Pro and I am concerned about brightness levels on OPT6 as screen seems very dim. I understand google has made changes to the brightness slider in android Pie but I had to have the brightness at 100% where normally it would be at about 50-60% on other phones. Is this something you find a problem or does the adaptive brightness learn your habits?

Percy247 said:
Thanks for the information. Did WiFi calling work automatically on your phone or did you have to contact your airtime carrier to set it up? Can you please confirm that with aeroplane mode on you can make/receive phone calls and send/receive sms messages. I need to stay in touch and have good battery life, not one at the cost of the other. I don’t really send mms messages so that is not a problem. What is the DTIM interval you mention on your router/AP and how does this affect the phone? I will be choosing between OPT6 and the P20 Pro and I am concerned about brightness levels on OPT6 as screen seems very dim. I understand google has made changes to the brightness slider in android Pie but I had to have the brightness at 100% where normally it would be at about 50-60% on other phones. Is this something you find a problem or does the adaptive brightness learn your habits?
Click to expand...
Click to collapse
WiFi calling worked right away with my phone provider, MetroPCS. All I had to do was use their app to set my E911 number for emergency purposes, I am in the US by the way. Some carriers may have to contact their support to enable the feature for your account, I cannot say for any other carriers than MetroPCS.
I can confirmed that airplane mode with Wi-Fi calling works 100% for calling and SMS. The MMS issue seems to just be an issue with the US carriers T-Mobile and MetroPCS from what I have seen. Just make sure you turn Wi-Fi back on after enabling airplane mode.
You can look up what the DTIM interval is on Google if you are interested in it. Basically its how often the router will include a message to wake up the Wi-Fi on your phone to process messages. I had mine set to 50 or 100 beacon intervals and that was causing high standby drain. Pretty much every router defaults that setting to one so you shouldn't have to worry about that. I currently have mine set to three with no issues.
As for the brightness slider it works great for me. I think it's a little on the right side most of the time, some people say it's too dark sometimes, it's all subjective to the person and how they use their phone. Personally I think the new brightness slider is a huge improvement over the old versions. You have a lot more control of the brightness at lower levels so you are able to better set your phone in low light environments. Also the screen gets plenty bright at 100%. I have not had issues using my phone outdoors in bright sunlight. As for learning your habits with the brightness, it does seem to do that to some extent but don't expect it to be magically right all the time.

Thanks very much for all your help. Have a great New Year.

Samsung Galaxy S5 SM-G900F (Lineage 15.1) Wi-fi Problem/Bug

My SM-G900F has a bug/issue with connecting to the Wifi. Everytime I try to connect to the wifi at home, the wifi icon at the status bar wont show any changes.
I open the wifi settings, things got weirder. The wifi slider turns itself off after I slide it on @ (0:26)
I need help solving this problem :crying:
You can search for the video on YouTube with the same title as the post under my channel name JugahBarieng.
I'm a 1st timer posting here so the system wouldn't let me put the link.
Sorry for the incovenience and thank you for your assistance.

AbuHKY39 said:
My SM-G900F has a bug/issue with connecting to the Wifi. Everytime I try to connect to the wifi at home, the wifi icon at the status bar wont show any changes.
I open the wifi settings, things got weirder. The wifi slider turns itself off after I slide it on @ (0:26)
I need help solving this problem :crying:
You can search for the video on YouTube with the same title as the post under my channel name JugahBarieng.
I'm a 1st timer posting here so the system wouldn't let me put the link.
Sorry for the incovenience and thank you for your assistance.
Click to expand...
Click to collapse
:crying: do you also have phone heating and severe battery drain when this happens?
I had similar problem with a G900T with a bad wifi chip that I think needs a reflow. When it warms up it starts to drain battery very fast and heat the phone. Wifi indicator goes to a ?, And eventually turns off if I don't catch it, won't turn on again till it cools off.
Airplane mode, or better yet power off and put the phone someplace cool for a bit, then see if it will turn on wifi again.
I don't have access to a reflow station, so I ended up just buying another s5 off eBay and keeping first one for testing roms.
Hope you get it working again good luck ?

BlueCyclone said:
:crying: do you also have phone heating and severe battery drain when this happens?
I had similar problem with a G900T with a bad wifi chip that I think needs a reflow. When it warms up it starts to drain battery very fast and heat the phone. Wifi indicator goes to a ?, And eventually turns off if I don't catch it, won't turn on again till it cools off.
Airplane mode, or better yet power off and put the phone someplace cool for a bit, then see if it will turn on wifi again.
I don't have access to a reflow station, so I ended up just buying another s5 off eBay and keeping first one for testing roms.
Hope you get it working again good luck
Click to expand...
Click to collapse
yes sir. I do experience battery drain and phone heating. but everytime I turn my phone off, it will undergo a bootloop for hours. at this rate, I can only live in this situation because I'm too broke to buy a new phone haha. Once I guessed this happened due to the custom ROM I installed. I'm using lineage 15.1