"Unable to cancel system wake" repeating in system log?

Discussion in 'iPhone' started by sgrrsh26, Oct 21, 2011.

  1. sgrrsh26, Oct 21, 2011
    Last edited: Oct 22, 2011

    sgrrsh26 macrumors 6502

    Jul 19, 2009
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

    My system status system log keeps showing "Unable to cancel system wake for 2011-10-21 09:20:12 -0400. IOPMCancelScheduledPowerEvent() returned 0xe00002c"

    Like all day it keeps logging this.
  2. sgrrsh26 thread starter macrumors 6502

    Jul 19, 2009
    Im pretty sure this has to do with the standby drain.
  3. French macrumors regular

    Jan 13, 2011
  4. sgrrsh26 thread starter macrumors 6502

    Jul 19, 2009
    I saw a post on another site claiming that an app was not allowing the phone to sleep. This could be the reason why batteries are draining in standby.
    another note, after a full restore Ive only saw the message once. Pretty sure my standby will improve like when I first had the phone.
  5. ScottW1 macrumors regular

    Aug 27, 2010
    Probably not related. I have a ton of those messages, but am NOT having any battery issues.

    I currently show 15 minutes of usage (this was a short phone call, then some maps/gps usage, and some time playing with "find my friends"), along with 4 hours of standby.

    Battery is at 97%.

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