Quote:
Originally Posted by jusmee
Hmmm, then it's not really sleep mode, more like a screen lock top prevent accidental touches.
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I'm fairly confident that the processor "sleeps" to some degree even when you aren't in sleep mode. I base this on an issue I had with the original firmware (at least 1st firmware that added newspapers) on the Kobo Wifi with newspapers. Sometimes it would "time-out" and not complete loading until you pressed a button again, since the processor went to sleep before it finished loading. The biggest difference been reading and sleep would have to be the screen polling for touches since it's maintaining stuff loaded in memory even in sleep (not doing either in power off).
The bottom line is that regardless of the reasons: wireless on uses more power than airplane mode, sleep mode uses more power than powered off.