Develop Bugs

How can I tell what's keeping my phone awake?

As you can see, something is keeping my phone awake while I'm not using it
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How can I find out what it is?

Could that just be phone idle?

But why would it be awake so much when i'm not using it?

The Alpha Gamer said:
But why would it be awake so much when i'm not using it?
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Try CPU Spy. That's what I use to show what percent of time the phone was in Deep Sleep for. It doesn't tell you what apps have caused you to wake from Deep Sleep, but should give you better figures

You seem to have poor reception. Maybe its the phone switching from 2G to 3G or switching towers?
I had wake issues on firmware 2.3.3 where the phone would be awake for up to 90% of the time, 2.3.4 seems to have fixed it.

could be apps syncing data in the background?

empty the dalvik cache folder and restart your phone......let the phone setup the cache for each app again .
i was having very bad battery life .. its like just 2hrs off gaming and 5 hrs normal use plus
my message tone use to rang and notification bars shows nothing ... noww ALL is WEll "D

[Q] Is It normal for cell standby to be 60% of batt drain?

I just got the galaxy nexus a few days ago I've rooted it and installed the latest miui from miuiandroid.com as well as the trinity kernel.. when my phone locks I lose signal thats one issue but I would have thought if anything that would make the battery better? I pulled up my battery stats and my cell standby is 66%.. is this normal for cell standby to be the main battery drainer?
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Losing signal = constantly trying to reacquire signal.
So no, it is not your friend when it comes to battery.

it is also 66% of the 39% of the battery lost

Is this just a standard bug in 4.0.4 or is this fixable?

The signal cutting out when the phone is sleeping is a known bug of 4.0.4
If you took your phone off charge in the morning and didnt hardly use the phone for the 13 hours then yes your standby would use the most because its not been doing anything all day.
If you had the screen turned on for long periods of time then the screen would take up most battery etc.
By the looks of it you have hardly touched your phone seeing as screen has only used 6% in 13 hours so its most likely nothing for you to worry about if you didnt use the phone much.
When i first got my nexus i tried not to use it as much as i could for the first charge to see how the battery life was and cell standby used up the majority of my usage because the phone had been in standby all the time

Battery Problems...

I always feel like I get the worst random rogue apps in my battery statistics on all my android devices and it so off-putting. Its either Google services this day, android OS the next, or android system another day. Maybe I'm just dead wrong about this one but should I be getting better standby time than this? I feel like I should but I honestly don't know anymore...
*Edit* Screen on time is 19 minutes if that helps.
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Sent from my Nexus 7 using Tapatalk 4

I don't think that looks too bad.
Google betterbatterystats xda on Google and download the free apk file from the thread.
Install it and let it run for a couple hours or a day and that will tell you what's draining your battery exactly.
Sent from my SAMSUNG-SGH-T999 using xda app-developers app

You've only lost 9% in over 7 hours unplugged. Android OS only used 49% of 9%, which basically is less than 5% of your total battery drain in 7+ hours. Looks fine to me. Looks like you probably had some WiFi and syncing going on. Try it again with WiFi when you go to bed. I'm betting your total battery drain will be even less than 9%

Poor battery life on the first day

Hello everyone, yesterday I picked up a brand new Galaxy s9 exynos version. At the very start, the battery gad around 42 procent, it lasted me about 2 hours till it went to 10 percent. Later I charged the phone to 75 percent, went out with friends, and after around 35 minutes, doing nothing in my pocket, it dropped 4 percent. After some heavy usage, I decided its time to do a full charge for the first time. I will post the screenshot down bellow. I've heard, that its just the first day, and it will get much better after around a week, although im a bit affraid, that the battery life wont improve. What do you all think?
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You are meant to charge it as soon as you get it 100%. You need to calibrate your battery now and maybe do a factory reset.

kasiopc said:
You are meant to charge it as soon as you get it 100%. You need to calibrate your battery now and maybe do a factory reset.
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Ok then, how am I supposed to do the battery callibration?

MrPTkruzer said:
Ok then, how am I supposed to do the battery callibration?
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Don't worry about factory reset, just drain the battery to 0 then charge back to 100 for the next few charge cycles

HTC 10 App system and battery

Dears, in the first of using my HTC 10 i was getting 4.5 to 6 hours SOT even over Oreo update, but within 2 months everything changes. i am hardly catching 2.5 or even 3 hours SOT for less 24 hours charge set.
i have tried to delete facebook, twitter, Instagram and snapchat; all social media apps have been deleted but still the same, even thought when i finish charging my phone and just disconnect the charger it will discharge 6% within 1-hour please find a screenshot from today. i start to feel frustrated i am using forcedoze by the way, it gives me incredible performance regarding to the battery after the first 6%, and there is alot of wakeups for maintenance during the night.
also when i connect my phone using Bluetooth to my car it discharge 10% per hour. so what is exactly is happening !!!
i have tried to do hard reset, wipe cache partition.
also the discharge rate when using the phone is too high, only by Android System and google service, it discharge 26% per hour, i have deleted the cache also the data for google play and service still nothing is fixed
still nothing change.
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