[Om 2008] Re: fixing bug #1024 successful reports?

Lothar Behrens lothar.behrens at lollisoft.de
Thu Jul 23 16:59:51 CEST 2009


I am also interested to get my daily phone :-)

Why not just soldering another 10uF capacitor on top of the other. As  
I think soldering the capacitor to the shielding on the right
yet requires an insulator.

That way no long extra wires may be needed and no unsoldering is  

Some questions:

I have read that making phone calls is impossible with that recamping,  
but I am able to do phone calls. I tried to start logging the
battery with

root at om-gta02 ~ $ while true; do
 > date
 > mdbus -s org.freesmartphone.odeviced /org/freesmartphone/Device/ 
PowerSupply/battery org.freesmartphone.Device.PowerSupply.GetInfo
 > sleep 5
 > done >> battery-data

to compare the data, but I do not have mdbus command and it seems not  
to be installable with opkg (OM 2008).
Where do I get it?

What capacitor voltage is required or what capacitor could be used or  
where could I get a sample / buy one (22uF 0805 low-ESR)?

I have no matching screwdriver, but an ESD save place to solder the  
capacitor with a Weller WECP 20.

Is there any hardware fix party planned near stuttgart (I could  
provide the ESD equipment)?

Is that ok?



Am 22.07.2009 um 16:46 schrieb Daniel Willmann:

> Hi,
> On Tue, 21 Jul 2009 16:48:25 +0400
> ivvmm <unachievable at gmail.com> wrote:
>> Hello list,
>> were there any successful fixes since posting
>> http://lists.openmoko.org/pipermail/hardware/2009-May/001192.html
>> Is this the final solution? Please post here your reports.
> Since about 5 days I'm using my #1024 fixed device as my main phone
> (before I only used it with my test SIM) and so far stability is  
> pretty
> good. I measured standby time (GSM on, phone in suspend) of around  
> 140h
> which makes the Freerunner much more comfortable to use in my opinion.
> While increasing the capacitance does work to solve #1024 the actual
> problem is that the capacitor is not integrated in the regulator
> feedback loop (iirc). So while it's not the correct solution it's
> probably the best you can do without another hardware revision.
> Regards,
> Daniel Willmann
> _______________________________________________
> Openmoko community mailing list
> community at lists.openmoko.org
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-- | Rapid Prototyping | XSLT Codegeneration | http://www.lollisoft.de
Lothar Behrens
Heinrich-Scheufelen-Platz 2
73252 Lenningen

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