ankostis wrote: > On Mon, Sep 1, 2008 at 7:14 PM, Michael Shiloh <[EMAIL PROTECTED]> wrote: >> ankostis wrote: >>> On Mon, Sep 1, 2008 at 6:28 AM, Michael Shiloh <[EMAIL PROTECTED]> wrote: >>>> Did you update u-boot and kernel? There was a bug awhile back causing >>>> USB insertions to be only partially recognized. >>> I have not updated UBoot and i cannot do it anymore since the battery >>> has fallen significantly making it impossible to enter into USB ACM. >>> >>> I've used kernel from 2008.8 and FSO (2 days ago), nothing too recently. >>> >>> I thinki i've seen the bug you mention, >>> when it requires to insert the USB twice in order to enter 'Charging" >>> status. >>> But yet, no real current flows into the battery and the battery's >>> reported capacity remains 0. >>> >>> >>> Yesterday, the current_now started to show some non-zero values, but >>> judging from the voltage_now, >>> the battery did not actually charge. >>> >>> Michael, I would really like to know if there is any possibility of >>> reviving the battery or if i should definitely contact the reseller >>> for a new one, >>> since i live in a different country from the reseller it and it will >>> take some time to receive a new battery. >> If you're feeling adventurous, try to revive the battery using Joerg's >> unofficial instructions [1], then update u-boot and kernel, then see if >> charging works better. >> >> If you're not feeling adventurous, ask your reseller for a new battery, >> and if it works, then return the old one as faulty. >> >> Michael >> >> [1] http://wiki.openmoko.org/wiki/Charging_battery_directly > > I've tried this already since the current voltage has fallen below the > booting threshold, > by supplying extra current from a separate supplier directly to the > battery receptors. > > Yet i think Michael, that we are not dealing with a dead battery that > needs reviving, > but with a broken protection circuit that does not accept the charging > current. > > If i could suggest a solution that would be first to deeply-discharge > the battery > in order to reset the protection-cpu, and then start charging it. > Is this a viable solution?
Interesting theory. I don't know how the protection circuit works, and whether deeply-discharging will reset it. You might post this question on the kernel list - the people who would know this should all be there. Michael _______________________________________________ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support