Rockbox General > Rockbox General Discussion

iPod not turning on (SOLVED)

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soap:

--- Quote from: SindreD on July 13, 2008, 03:06:01 PM ---EDIT: It would be nice if a moderator could edit the topic, ie. removing "SOLVED". Thanks.

--- End quote ---
My original reply (post #2 in this thread) also applies to you.
The original poster's problem was solved, and I'll bet my right hand yours will be as well if you follow the advice in this thread.

SindreD:
Maybe I have been a bit unclear. When saying "restarting", I have gone through the steps according to your post #2.

soap:
You (by your own admission) haven't left the iPod alone on charge for 12 hours.
A deeply discharged battery can take a long time to recharge.
If, after at least 12 hours of charging, your iPod will not boot past the low-battery warning try restarting while plugged in, and try charging overnight again.
Also, start to suspect your charging cable or USB port is not providing the power you assume it is.

This procedure will work unless your battery is permanently dead.

SindreD:
Have I understood it right that if you have a battery that is deeply discharged the charging circuit won't charge the battery as fast as if the battery only was normally discharged?

I will try to let the ipod charge for another day and follow your instructions and hope that it comes back to life.

Also, I am wondering if it is necessary to have the low battery-icon displayed when plugged in to have the ipod charging or would the ipod charge if the display is off as long as it is docked?

bluebrother:
Let me try to explain it in a not-so-technical way:
during normal operation, your battery has some basic power in it. Let's say we need at least 3.5V to power up, and a completely filled battery has 4.2V (haven't checked the exact values but it's something in that range). Now imagine your battery being completely flat -- i.e. having the power of 0V. This means you need to fill up to those 3.5V until your Ipod can do anything at all. Now consider that filling up like 0.1V needs the same time, regardless if your battery was at 0V or at 4.0V when starting charging you'll figure that charging from a flat battery takes *much* longer than from the usual "empty" battery.

Don't take the mentioned values itself literally (though I don't think I'm too much off the reality), but that should at least explain the basic reasons behind it.

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