OLPC France repair workshop report

[John Watlington]

On Nov 22, 2009, at 4:02 PM, LASKE, Lionel (C2S) wrote:

>
>
> Hi all,
>
>
>
> OLPC France has organized a XO repair workshop on November 19th at / 
> tmp/lab near Paris.
>
> Detail report is on: http://olpc-france.org/wiki/index.php? 
> title=Compte-rendu_atelier_r%C3%A9paration_19/11/2009
>
>
>
> We analyzed three XO:
>
> ·         One was coming back from our Nosy Komba deployment,
>
> ·         One come from a G1G1 buyer (http://rt.laptop.org/Ticket/ 
> Display.html?id=43180),
>
> ·         One come from our stock.
>
>
>
> All XO had the “black screen” symptom. We used a serial adapter to  
> diagnose the problem.
>
> We fixed the one come from G1G1 (2007 probably) using Fix clock  
> workaround.
>
> One XO displays a continuous “For+” message on the Putty console:  
> do you have any idea of what it mean ?
>
This is a likely indicator of a bad SPI Flash ROM.   See:
http://wiki.laptop.org/go/XO_Replacing_SPI_flash
> One XO displays nothing on the Putty console: does it mean that the  
> XO is… dead ?
>
Does the EC blink the lights when power is first applied ?
If it does, try replacing the SPI flash.
If it doesn't, it probably takes more resources than you have to  
recover.

Regards,
wad