Develop Bugs

Abysmal battery life on JB

I updated to JB last night, fully charged my phone, unplugged it and then went to sleep. When I woke up I only had 50% battery left, previously on ICS when the phone was idle over night it used between 2-5% max.
I then charged the phone again this morning and now 3hrs 10mins later, I'm already down to 66% and I have hardly used the phone. It's showing as:
Whatsapp 36% !?!
Android OS 17%
Android System 16%
Facebook 7%
HTC Sense 6%
Mediaserver 4%
Camera 3%
Is anyone else having any problems? With ICS I would charge my phone in the morning at work and it would easily last until the following morning, unless I was heavily using Facebook or playing a game. I thought JB was supposed to improve the battery life, not make it worse.

Give it a few charging cycles before complaining.
Have you rebooted the phone since the update.?

Some apps still are not quite complitable with jb,especially with new HTC sense libs or api.
Sent from my HTC One X using xda app-developers app

mickfitz said:
Give it a few charging cycles before complaining.
Have you rebooted the phone since the update.?
Click to expand...
Click to collapse
Not me personally, but it did reboot by itself randomly. It's never done that on ICS. I think I'll do as you suggest, give it another day or so. If it still hasn't improved I'll try a factory reset.
What does the Power Saver option actually do? Does it switch off all data sync, lower the screen brightness etc?

Do a full wipe. Some apps could be screwed up while updating.
Sent from my HTC One X using xda app-developers app

Try a restart
Deleted

jo3yp said:
Not me personally, but it did reboot by itself randomly. It's never done that on ICS. I think I'll do as you suggest, give it another day or so. If it still hasn't improved I'll try a factory reset.
What does the Power Saver option actually do? Does it switch off all data sync, lower the screen brightness etc?
Click to expand...
Click to collapse
Power saver switches off data and WiFi when screen is off. Whatsapp appears the drain
Sent from my HTC One X using Tapatalk 2

roy8846 said:
Power saver switches off data and WiFi when screen is off. Whatsapp appears the drain
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
Winner.
Power saving saps my power.
3 hours and I lost 20% quick. Turn off power saver and I'm actually saving power.

Hmm I actually think power saver is an amazing feature. 2 hours gone by and I just lost 6% battery (normal usage: message, whatsapp, maps, xda). Even though typing felt weird because no vibrations.
Sent from my 4.1.1 sense 4+ HTC One X

careful with Power Saving mode.
I;ve read some people said the alarm not ringing when in Power Saving mode.. CMIIW.

I think they have paired the app with the screen time and gives you a total percentage.
No screen time hours is pretty ****ty.

Hi
mickfitz said:
Winner.
Power saving saps my power.
3 hours and I lost 20% quick. Turn off power saver and I'm actually saving power.
Click to expand...
Click to collapse
Most likely an app that isn't backing off nicely. When an app finds your data/Wi-Fi is off is probably getting in a panic that it can't call the mothership (or download some ads!) and is waking your phone or keeping it awake constantly while it tries and tries.
That app would cause the same issue if you turned off data and Wi-Fi manually.
Regards
Phil

areestocrat said:
Hmm I actually think power saver is an amazing feature. 2 hours gone by and I just lost 6% battery (normal usage: message, whatsapp, maps, xda). Even though typing felt weird because no vibrations.
Sent from my 4.1.1 sense 4+ HTC One X
Click to expand...
Click to collapse
Until you wake the phone up again. It dropped from 90% to 81% in an instant.

areestocrat said:
Hmm I actually think power saver is an amazing feature. 2 hours gone by and I just lost 6% battery (normal usage: message, whatsapp, maps, xda). Even though typing felt weird because no vibrations.
Sent from my 4.1.1 sense 4+ HTC One X
Click to expand...
Click to collapse
You can manually disable the no vibration feature of the power saver.

monchee said:
You can manually disable the no vibration feature of the power saver.
Click to expand...
Click to collapse
I switched to Apex and the whole Power Saving option doesn't even appear anymore on my phone ~_~

I didn't have problems with my alarm not going off during Power Saver mode.
---------- Post added at 01:38 AM ---------- Previous post was at 01:36 AM ----------
MysteryE said:
careful with Power Saving mode.
I;ve read some people said the alarm not ringing when in Power Saving mode.. CMIIW.
Click to expand...
Click to collapse
ArmedandDangerous said:
I switched to Apex and the whole Power Saving option doesn't even appear anymore on my phone ~_~
Click to expand...
Click to collapse
Try Nova, I personally find it better than Apex.

So I installed android revolution 15.0 and the battery doesn't seem to be good at all... Don't know if its a JB thing or this particual Rom. When I check the usage number on power section, it says android os has a 2 hr wake up time... I also installed betterbattery stats and I am getting this wl1271_wake under the kernel section and this weird surfaceflinger under the processes section... Any insight would be helpful, thanks
Sent from my EndeavorU using xda app-developers app

I performed a factory reset last night - well the new equivalent in JB, which is go to backup and reset the phone.
After the reset, I setup my Google, Exchange, Hotmail and Facebook sync. The only app I installed was Whatsapp. Managed to get the phone to 72% charge before unplugging and going to sleep, I also made sure the initial syncs had all completed before unplugging the charger. This time it went from 72% to 30%, so 40% used while sleeping instead of 50%.
Looking at the stats, I think the battery counters are screwed up. When I first checked this morning, it showed Whatsapp had used just 2%. 10 mins later after a couple of messages, the battery had dropped to 28% and Whatsapp then showed as 32%.
Android OS never used to show much usage, the screen was always the thirstiest, but this morning it Android OS showed as ~30% which then dropped to 22% after using Whatsapp. Perhaps this is due to the screen time being integrated into the app counters as mickfitz said.
As you can see from the pic below, Whatsapp doesn't appear to be keeping the phone alive during the night as Phil suggested:
Surely others here use Whatsapp? Is no one else getting massive battery drain since the OTA JB update?
The only other things I can think of are the company policy settings which are applied to the phone when I setup my Exchange account, or Google Now - but for this I'm just using the default settings.
[EDIT] I'm not using Power Saver mode btw and I don't want to if it shuts off data while idle - it will mean I don't receive Whatsapp alerts
[EDIT 2] I've just had a proper look at the 2nd screenshot. The line chart doesn't match up with the battery % shown. It was definitely at 72% when I went to sleep yet the chart only shows 50%. I'll leave it charging all evening and check the line chart to make sure it's at 100% then give it another go tonight.

not sure if this app will help us to get a clearer picture of what is happening..
http://forum.xda-developers.com/showthread.php?t=1179809

admp said:
I didn't have problems with my alarm not going off during Power Saver mode.
---------- Post added at 01:38 AM ---------- Previous post was at 01:36 AM ----------
Try Nova, I personally find it better than Apex.
Click to expand...
Click to collapse
I actually prefer Apex over Nova. Just seems smoother

battery draining too fast new or old

im on a stock rom not rooted and new battery and old battery both discharge really fast. Totally dead in 5-6hrs light use. Im guessing there is a hardware issue with the phone as this isnt normal. Any ideas?
lets see I did a factory reset after Jellybean update
changed the battery for a new one
biggest power drain is showing up as screen 33-39%
I have the thing on power saving mode and mobile data I turn off when not in use.
only thing I can think of that I didnt try is flashing another radio. But I doubt thats it because ive put it in airplane mode and it still looses power fast.

craig198 said:
im on a stock rom not rooted and new battery and old battery both discharge really fast. Totally dead in 5-6hrs light use. Im guessing there is a hardware issue with the phone as this isnt normal. Any ideas?
lets see I did a factory reset after Jellybean update
changed the battery for a new one
biggest power drain is showing up as screen 33-39%
I have the thing on power saving mode and mobile data I turn off when not in use.
only thing I can think of that I didnt try is flashing another radio. But I doubt thats it because ive put it in airplane mode and it still looses power fast.
Click to expand...
Click to collapse
Get Better Battery Stats and check your wake locks. A lot of information in that thread. Might have a rogue app draining you.
Edit: also screen on is always going to be your biggest drain. Keep brightness down as much as you can. App called screen filter is good for achieving lower brightness than system allows. You could try the ktoonsz kernel, undervolted as well. Turning off sounds in settings (key press, vibrate, etc as well). Toggle data and WiFi when not using. These are just some basic suggestions.
Sent from my cracked out SGS3

This is my second s3 and the first one never had a problem going 10-12 hrs normal use. Im thinking it is a hardware issue as I did a factory reset and it still persists on fast draining.
Edit.. I just disable google talk maybe that was causing it?

It's not Google Talk. Check your battery and it'll show you what's drainage ng it the most. Also check screen brightness
Sent from my GT-I9300 using xda premium

Benconquerer said:
It's not Google Talk. Check your battery and it'll show you what's drainage ng it the most. Also check screen brightness
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
well after the screen 40% we have android OS @ lower 30%

Do you have an SD-Card in?
I was getting the same battery life, took out my SD-Card, and I'm getting 7 hours on screen time with stock battery.

andybones said:
Do you have an SD-Card in?
I was getting the same battery life, took out my SD-Card, and I'm getting 7 hours on screen time with stock battery.
Click to expand...
Click to collapse
lol sd card?? well I tried it anyway and no, it still drains like a pissing racehorse. Ive noticed this phone gets pretty warm sometimes even with light use. Im not sure what is causing this but must be a factor in why the battery life is so poor. When I talk on phone, not very often, the ear piece actually gets hot. Im gonna send this puppy to samsung and see what they can do.

GSam Battery Monitor can offer better details about your battery usage, including wakelocks, cpu usage, etc.. It's more detailed than what Android offers.
I'd also recommend using an AOSP based rom as they include out any carrier/Samsung services that may adversely affect your battery life, particularly in a fringe coverage area or with many sync and push items. I'd also stay away from powersave mode for the time being.
If you want to know for sure, I'd do something like this:
- update PRL on current rom
- wipe and format everything in CWM
- flash rom as per developer suggestions
- wipe battery stats
- boot and do not sign in with your Google account (very important!)
- do not install or restore any apps
- turn off auto-sync and leave data on
- enable auto brightness
- confirm that phone signal is somewhere between -50 and -90dbm
- turn off phone and charge overnight
- turn on in the morning and use normally for the day
- install GSAM if issues persist
Please post back with updates.

It could be a hardware problem also you know.... if something ground off in the phone then the battery will drain faster than anything....I had a n96 with a grounded problem and it use to dead in 4 hrs....

Htc One X 4.2.2 Power setting history not refreshing after Proper Shutdown :(

I got the 4.2.2 sense 5 update on my htc one x . I'm just noticing one strange thing... As I switched off my phone with power save on + fastboot on, power saver on + fast boot off, power saver off + fast boot on(this took time to shut down like proper shut down), both power save and fast boot off, all the possible way, but when I go to power setting in all cases, I see that in "history" that time is not starting again, its already high like 1 hr some minutes going more n more still, like the phone was never switched off properly!
I know earlier in 4.1.1 if power save weather off or on, but in fast boot on the phone is not properly shut down... but if fast boot is off then the history refreshes which use to tell us that the phone was properly shut down. But in above case nothing is working!!
Is it a big problem of battery drain or anything, Any accurate clue please ?
I have not done factory reset, but have done clear cache partition ... still nothing....
Should I factory reset then ?

hold the power button for 5 sec...it should reset the phone

nizuak said:
hold the power button for 5 sec...it should reset the phone
Click to expand...
Click to collapse
You mean the soft reset?! That makes phone restart?! If yes then that's also not working
Sent from my B1-A71 using xda app-developers app

try the batt test frm the test menu(*#*#3424#*#*)...

it's fine now, I did a factory reset and it did reset the history time (my battery was low that time) . After that when I switched off my phone and powered it back on (with power save on and fast boot off) still the history time was picking up from where it stopped . So I kept my phone on charging, didn't even do the wipe cache partition or anything . And as I woke up today, I switched off and turned on again and history got refreshed and even restarted in same settings and again history got refreshed!! Yuppie its all perfect now and after factory reset its still all super smooth!
Just battery was draining little fast, then I noticed there's a hidden facebook update, after that update the battery drain is happening slower like really normal, still maybe if required a patch might do better .
Thank you all still!

Battery stats reset when the phone is charged to 95% I believe
Sent from my HTC One X using xda app-developers app

treebill said:
Battery stats reset when the phone is charged to 95% I believe
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
you are absolutely right, its something like that for sure.... as now when my battery was around 55% and I did restart in power save on and fast boot off,,,, the history time did not refreshed... so I guess its nothing to worry about and its little less than normal drain for me and gets very normal drain after 70% ! its I think htc made Something new to make things ready for us fast, which is making battery drain little faster on hox being 1800 mah, but would not be impacting much on htc one m7 I believe .

[Q] HTC desire 816 battery drain

please 816 users , tell me your battery drain through night when you're just sleeping till the next morning ??

Gharbawy said:
please 816 users , tell me your battery drain through night when you're just sleeping till the next morning ??
Click to expand...
Click to collapse
In standby overnight, maybe 3-5% battery drain. A lot of things come in play though such as what apps you have installed, if your on LTE, or 3g, or wifi, or even go into airplane mode at night, etc.

FoxyDrew said:
In standby overnight, maybe 3-5% battery drain. A lot of things come in play though such as what apps you have installed, if your on LTE, or 3g, or wifi, or even go into airplane mode at night, etc.
Click to expand...
Click to collapse
first of all , I'd like to thank you for your reply ..
I've bought a new desire 816 two days ago and I can notice something wrong with the battery as it drains faster than normal
and it gives false percent as it increases after restarting the phone ..
I've tried to calibrate the battery by letting in turn off by itself then recharging it to 100% but then I realized It's still giving me false number
I don't know what to do ... It would be great if you can help

Gharbawy said:
please 816 users , tell me your battery drain through night when you're just sleeping till the next morning ??
Click to expand...
Click to collapse
my friend has the same. i will update you if he finds any solution

Gharbawy said:
first of all , I'd like to thank you for your reply ..
I've bought a new desire 816 two days ago and I can notice something wrong with the battery as it drains faster than normal
and it gives false percent as it increases after restarting the phone ..
I've tried to calibrate the battery by letting in turn off by itself then recharging it to 100% but then I realized It's still giving me false number
I don't know what to do ... It would be great if you can help
Click to expand...
Click to collapse
Have you tried a battery calibration app such as the one by NeMa in the PlayStore? It requires root but it basically asks you to charge your device to 100% which is done from empty to max in about 3 hours. At this point you go in the app while its still plugged in and "clear" the batterystats. This is the file that tells the device how much charge it can hold and on some devices this file gets buggy/glitched. It will wipe this file away and generate a new one based on the charge the battery holds at max. It then asks you to use the device as normal until it dies and recharge to full afterwards. This has worked for many and I hope it will work for you as well.
If you have excessive battery drain look at the Power settings and review the usage. If it shows a green line on awake and it doesn't show the same matching the screen on time then you have a background app sucking battery from the device. Facebook and its Messenger are known to be the culprits but if you download Greenify from the PlayStore. It will allow you to hibernate practically every app so there is no battery drain when your device screen is off. In combination with this app I am able to get an average day and a half of use with no charge and normal use with Videos, Music, Facebook, Messenger; etc. I average I use about 6-10 hours on this device with pure stock w/ root & Greenify with battery calibration via app done.
Sent from my 710C using XDA Free mobile app

jaysoblitzed said:
Have you tried a battery calibration app such as the one by NeMa in the PlayStore? It requires root but it basically asks you to charge your device to 100% which is done from empty to max in about 3 hours. At this point you go in the app while its still plugged in and "clear" the batterystats. This is the file that tells the device how much charge it can hold and on some devices this file gets buggy/glitched. It will wipe this file away and generate a new one based on the charge the battery holds at max. It then asks you to use the device as normal until it dies and recharge to full afterwards. This has worked for many and I hope it will work for you as well.
If you have excessive battery drain look at the Power settings and review the usage. If it shows a green line on awake and it doesn't show the same matching the screen on time then you have a background app sucking battery from the device. Facebook and its Messenger are known to be the culprits but if you download Greenify from the PlayStore. It will allow you to hibernate practically every app so there is no battery drain when your device screen is off. In combination with this app I am able to get an average day and a half of use with no charge and normal use with Videos, Music, Facebook, Messenger; etc. I average I use about 6-10 hours on this device with pure stock w/ root & Greenify with battery calibration via app done.
Sent from my 710C using XDA Free mobile app
Click to expand...
Click to collapse
Thank you man for you Reply ..
I've few questions I wish you help with them
1- does this greenify need root also ?
2- I didn't root the phone not to lose my warranty as I was willing to replace it for that battery issue but
If I decided to root it , would you help me with the instructions ?? I mean some trusted way you've already tried
because I don't wanna mess up with the phone .
Thanks in advance !

Gharbawy said:
Thank you man for you Reply ..
I've few questions I wish you help with them
1- does this greenify need root also ?
2- I didn't root the phone not to lose my warranty as I was willing to replace it for that battery issue but
If I decided to root it , would you help me with the instructions ?? I mean some trusted way you've already tried
because I don't wanna mess up with the phone .
Thanks in advance !
Click to expand...
Click to collapse
Yes, Greenify does require root in order to work but it does work flawlessly.
For an visual step by step root guide for this device simply watch this video here!
https://www.youtube.com/watch?v=1NYP7V2ltpI
:good::laugh::good:

I have the same problem… .help plz my phone is w816dug dual sim from Taiwan

Gharbawy said:
please 816 users , tell me your battery drain through night when you're just sleeping till the next morning ??
Click to expand...
Click to collapse
I bought the machine and I have the same problem and searched for a solution and found it, thank God you tried it and it was sharp and Hoaml calibration of the battery as follows
We ship the device to extend not less than 10 minutes and then tend charger and push constantly for 2 minutes and confirmed in 2 minutes Whatever happens from closing and then opening or if something did not happen continued pressing for 2 minutes
Finished battery is completely closed to the device himself
Shipper arrived once again that is shipping 100%
And fill your normal concluded the problem
Thank you

muhamadalani said:
I bought the machine and I have the same problem and searched for a solution and found it, thank God you tried it and it was sharp and Hoaml calibration of the battery as follows
We ship the device to extend not less than 10 minutes and then tend charger and push constantly for 2 minutes and confirmed in 2 minutes Whatever happens from closing and then opening or if something did not happen continued pressing for 2 minutes
Finished battery is completely closed to the device himself
Shipper arrived once again that is shipping 100%
And fill your normal concluded the problem
Thank you
Click to expand...
Click to collapse
pressing which keys ??
can you explain more ?!

@Gharbawy
I had the same inssue ..in my phone htc a5_dug dual sim from Taiwan i waited for solution or any update nothing cameup… then i decided to flash custom roms and was best na now am in custom rom and the problem was off and the only one custom rom which solve my problem ..SVHD+………

Gharbawy said:
pressing which keys ??
can you explain more ?!
Click to expand...
Click to collapse
Unfortunately, the lack of rapid reaction because I was too busy
Pressing the power switch for exactly two minutes and the device will tell you Alglaq Do you want to or not agreed to the demand and calibration Congratulations to you
Thank you

I fixed my battery issue. the exposed software killed mine relating to the same issue i believe you had or have. reporting wrong percentage. once had 50 percent, took it back out of my pocket and within 5 mons i had 4%. wouldnt charge.
Power it off... hold all 3 buttons (power+volume up+volumedown) after 15 seconds it will boot back up. this calibrated my battery. hope this works for you.

Wrong battery percentage report is fixed by HTC on 1.58 rom update. it works fine on 1.58 Rom

My battery on my htc is draining fast I think it went from 100% to 83% percent in like 20 minutes is this normal? I have disabled everything that I'm able to disable on this phone but once it gets to 70% the drainage kinda slows down

The cause of Strange battery behavior + Random Restarts.

Hi, I just bought a used galaxy tab s 10.5 and the battery jump from 20 to 99% in 20 minutes when charging . I started using it at 100% and it shuted down for low battery in 30minutes and I power it on again a it said 75%. How do you thinks is going on with the tablet? Thanks and sorry for my bad english.

Do you know if it's rooted and has a custom recovery. Clear cache and fix permissions in recovery mode

No root
It is not rooted and it have stock recovery. Is there an app to reset battery stats?

MLopez14 said:
It is not rooted and it have stock recovery. Is there an app to reset battery stats?
Click to expand...
Click to collapse
try booting stock recovery and do a factory reset.if that don't work than look into rooting it and TWRP so you'll have the option to flash something else or clear the cache and fix permissions

done
I did the factory reset and the permissions fix thrught TWRP but the battery still crazy. What more can I do?

I got the tablet down to 0% battery, to the point that it wouldn't turn on.
Took off the back cover using prying tools and then disconnected the battery, power cycled thrice by holding and releasing power button and then reconnected the battery and let it charge overnight to 100% and now battery life is amazing, don't have those drastic drops anymore.
There are no warranty stickers torn etc involved with doing this so you don't have to worry about voiding it. Just take your time and start at the microsd slot, open the hatch and work your way around slowly. Its difficult first time around because there is adhesive glue as well as clips holding it down. But still very doable without damaging anything.

Here is a link to a battery calibrator for root users
https://play.google.com/store/apps/details?id=com.vitula.batterycalibration
There are other calibration apps
Definitely other options before taking it apart [emoji111]

..
I tried with the battery calibration app and nothing. I leave you a screenshot , thats is WHITHOUT any charge, when it shuted out I just turn it on again. What is indexservice?

OK after ready the links below I believe a debloated ROM could solve your problem
https://www.google.com/search?q=wha...google&sourceid=chrome-mobile&espv=1&ie=UTF-8
List of Roms
[emoji652]
http://forum.xda-developers.com/galaxy-tab-s/development

I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.

MLopez14 said:
I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.
Click to expand...
Click to collapse
Post back to let us know it is after a ROM flash

Can you post a full screenshot of your battery settings. You just posted the graph. Not sure about the index service, but knox drains battery too.

Had the same issue crop up on mine. Did the the battery 0% drain then recharge a few times. And factory format. Now it just randomly keeps restarting (even when on charge now). Called Samsung and they have sent a pack to post it to them to sort I hope.

Now with the debloated rom the crazy battery drops have stop but I'm having random restarts. What's is happening now?

I know it's a lot of work and getting frustrating but let's try Odin back to stock .
http://forum.xda-developers.com/showthread.php?t=2800372

Let's try back to stock. Thanks a lot for taking time to help me.

MLopez14 said:
Let's try back to stock. Thanks a lot for taking time to help me.
Click to expand...
Click to collapse
I'm on here all the time and when I get my devices the way I want them I just browse around trying to help with what I can .no problem and your welcome

...
Now with stock rom I still having random restarts and battery drops. I dont know what more to do and I dont have warranty.

I leave it all night on plugged in the charger and it didn't restart but when I started using it, it freezes up and restart.

Now it sounds like a kernel issue .I really dislike that cortex chip to