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  1. Thread Author  Thread Author    #1  

    Default Galaxy S4 is not going into deep sleep

    Hi, my 1 month old S4 drains battery like crazy when it is idle. If I unplug it at night, after 8-10 hours I lose over 20% of my battery without touching it! I turn everything off throughout the night, so no wifi, no data, no bluetooth, nothing. I posted some screenshots of my battery. For some reason, according to betterbatterystats, I don't have connection 94% of the time, but I was texting throughout the day and I had full bars every time. Even GSAM says I have signal 100% of the time. But when I look at the kernel wakelocks, the msm_hsic_host one keeps my phone up 100% of the time and no deep sleep at all, it stays at 384 mhz.

    Also, according to Gsam battery monitor in the discharge while on/off, it says my phone lost 44% while the screen is off. Is that a bit excessive?

    I'm at wit's end with this problem, why isn't my phone going to sleep? Can someone take a look and help me please? thank you for reading this!

    sorry I'm very new to this forum so I was not sure how to add multiple pictures, so I just uploaded the link to the album. sorry for any inconveniences!

    imgur: the simple image sharer
  2. #2  

    Default Re: Galaxy S4 is not going into deep sleep

    Here's a good explanation of msm hsic host wakelock A great explanation of the msm_hsic_host wakelock issue by "thracemerin" on the xda-dev forum : nexus4
    What you may want to try at night is to turn on Airplane mode and check your battery loss the following morning. That should give you a good comparison against the stats you posted in these images. It may help to determine if it's a radio or low signal connection issue.
  3. Thread Author  Thread Author    #3  

    Default Re: Galaxy S4 is not going into deep sleep

    Hi, I've turned my phone on airplane mode before, the same wakelock is at the very top keeping my phone up 100% of the time. I get almost full bars the entire time also. But thanks for the link!

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