Freerunner won't charge

Paul Fertser fercerpav at
Sat Jul 2 06:46:44 CEST 2011


Ronald Tallent <ron at> writes:
> So, there's no way to fix this thing? If I need to take it to an
> electronics repair shop to get it fixed I can, just need to know what
> part(s) will need to be repaired/replaced. Anyone know were I can get
> hold of schematics for the mainboard? If it's a simple repair proceedure
> I might be able to do it myself even.

Schematics are available from [1]. I hope you'll find the cause and
will be able to use your cool device again :)

Basically, what you need to know is that charging is controlled by the
PMU chip, PCF50633, it's connected over SPI bus and you can easily
view dump of its registers from [2] (newer kernels might have a
slightly different path but the same filename). Schematics are pretty
much obvious but if you have any questions, feel free to ask here or
on #openmoko-cdevel irc channel.

[2] /sys/class/i2c-adapter/i2c-0/0-0073/dump_regs
Be free, use free ( software!
mailto:fercerpav at

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