Apps may request a WAKE_LOCK to keep a device component from "sleeping", so they can perform a task even when the display is turned off. Obviously, those "Wakelocks" can become an issue for how long your battery's charge holds...

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25 views

My nexus 4 is awake 79% of the time… help?

So it's been some days my phone is keeping awake 79% of time. Below is the WLD screenshot. Screenshot of "Wakelock Detector" (click image for larger variant)
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200 views

Preventing certain WAKELOCKS (NlpCollectorWakeLock, NlpWakeLock) with shell? (e.g. pm command)

As some of you might aware of, the notorious 'NlpCollectorWakeLock' and 'NlpWakeLock' are often the cause of considerable battery drain. I personally make some custom ROMs, and would like to ...
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1answer
107 views

mm-qcamera-daemon wakelock when idle

My phone will randomly get the mm-qcamera-daemon wakelock. I know how to fix it, a simple reboot and all that, but it pops up when my phone is idle in my pocket. The phone starts to run hot and I ...
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0answers
901 views

Delay on screen wake

When I push my power button to wake my device it takes 1-4 seconds for the screen to turn on and show the lock screenp. I have seen that others have solved the issue by turning off power-saving mode ...
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0answers
265 views

What is exynos5-fb.1 wakelock?

Samsung Galaxy S4 running stock Android 4.3. This wakelock is mysterious. What is it? It's taking up a big chunk of my Awake time. How do I stop it? Thanks
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36 views

What custom rom or kernel will help control wakelocks?

Galaxy s2 running Android 4.1.2. Out of 2.5 hours of awake time only 49 minutes were screen on. I would like the awake time to not have such a large gap with the screen on time. Should I install a ...
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0answers
327 views

L2_hsic is insane on Galaxy S4

I think This started happening after the last software update to 4.3. L2_hsic is insanely keeping the phone awake. What should I do?
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0answers
636 views

How to debug “wlan_wake kernel wakelock” on an unrooted device?

The question is as short as the title. I've a Samsung Galaxy Note 3 & it has started showing issues where the CPU remains in lowest possible frequency (250Mhz) and it doesn't go to deep sleep. I ...
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0answers
516 views

GTalk_ASYNC_CONN wakelock detailed report. Keeps draining batteries

It's been a month since I've tried dealing with this wakelock. I've read a lot of articles, including this. A week ago I was also dealing with NlpWakelockCollector, which sometimes gets stucked ...
2
votes
2answers
694 views

Phone dropped in water - Now screen won't turn off (Samsung Galaxy S2 (SII))?

I currently have a Samsung Galaxy SII (S2)(I9100) that got dropped in water. I took the phone apart (removed the screws on the back and properly took the back off) and left it to dry in a warm place ...
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0answers
208 views

Fail to connect to ADB Wifi when device goes to idle state?

I am connecting to my Android phone with ADB WiFi (no USB plugged in). However, whenever my device goes to sleep, I am losing connection and unable to reconnect. In what I am trying to do, I need to ...
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2answers
11k views

nlpwakelock and “Use wireless networks” option

Under "Location services" there is a "Use wireless networks" setting - whenever the setting is on, I get constant "nlpwakelocks" and the battery drains a lot faster. However, I see that this was ...
2
votes
1answer
249 views

How do I keep CPU off when charging?

When I connect the USB power source, it makes CPU to stay on (even though "Development->Stay awake" is off). When charging from a weak power source if makes battery to drain even faster than is case ...
26
votes
3answers
25k views

How to deal with (orphaned) WakeLocks?

I guess most of you at least have heard about WakeLocks. Many of you will have experienced them already -- wether knowingly or not. Some may know how to deal with them in general -- but only few know ...
3
votes
2answers
5k views

msm_otg kernel wakelock preventing deep sleep

Ever since upgrading my stock Sprint Galaxy S3 to the official Jelly Bean release, my phone won't go in deep sleep at all, it's constantly at 384MHz. It's because of msm_otg kernel wakelock. Anyone ...
7
votes
4answers
2k views

Why does my screen turn itself ON?

I am having a problem with my phone's screen arbitrarily turning itself on. It has been going on for a while, but I finally got a logcat of it, so here it is. If anyone can find anything in here ...
7
votes
1answer
5k views

l2_hsic prevents my device from Deep Sleep. How to fix it?

I have installed BetterBatteryStats and CPU SPY, because I noticed that I had a faster than normal battery consumption when the tab was left alone. I made a 30 mins test Wifi OFF, Flight Mode On, ...
5
votes
3answers
365 views

Why does the screen come on when my phone is plugged in but idle?

Sometimes when my Nexus One is plugged in with the screen switched off, the screen turns itself on (showing the lock screen) seemingly randomly, and I have the "Stay awake" Development option turned ...