My Gta02s wont charge

Sean McNeil sean at
Sun Jun 22 23:01:12 CEST 2008

Werner Almesberger wrote:
> steve wrote:
>> Maybe I did get a flakely phone. 
> It's not so easy :-) The PMU state depends on what the PMU did the
> last time you had full power.
> Many internal settings only return to defaults in the so-called
> NoPower state, which means that all power sources are gone, including
> the backup battery. (The small "button" cell near the AUX button.)
> So if there is still juice in the backup battery (which should
> generally be the case), your PMU can be in a number of different
> states even after you cycle USB and main battery.
> If you drained your battery while running Linux, you probably didn't
> have USB connected at that time. This in turn means that the internal
> charger logic in the PMU should be turned off.
> Sean, it should be interesting to see if you can still power on from
> USB alone if you first put in a good battery, boot into Linux,
> disconnect USB, and then eject the battery.
I think you have this well understood. It does exactly as you predicted 
and will not power up for me with USB if I follow your procedure.

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