[Arm-netbook] Booting from SD card with switch on so-dimm in other direction ...

[Luke Kenneth Casson Leighton]

On Tue, Mar 23, 2010 at 11:37 AM, Adam Gill <madallig at gmail.com> wrote:
> Please conform it is these two point to short??

 NO.  absolutely no and NO.

 that large blob of solder on the right hand side covers TWO pads.
you now have a solder-blob-short between the pad to the right of the
words "R46" and to the pad to the right of THAT.

 what that means is that you have now activated the "please use NAND
flash to boot from" switch setting (which is the default).

 if you connect a wire across the pad to the left of R46 with those
two pads to the right you will be SHORTING OUT something and you will
likely fuck the machine.

 DO NOT connect all three pads together.

 go get a solder sucker or some of that solder-sucking filament stuff,
and remove the blob that is shorting out those two right-hand pads.

 after removing the blob, look closely and inspect the board.  you may
also need to clean in between the pads, with a scalpel or better the
finest smallest jeweller's screw driver you have got, removing any
resin that may have got in between the tracks, which could possibly be
creating a circuit between the two soldered pads or any other nearby
tracks.

 DO NOT cut the tracks in the process.  DO NOT go anywhere near the
resistor bank R41 to R45, not with the scalpel/screwdriver or with the
soldering iron.

 l.

> Adam
>
>
> Luke Kenneth Casson Leighton wrote:
>
> On Tue, Mar 23, 2010 at 11:03 AM, Adam Gill <madallig at gmail.com> wrote:
>
>
> That's really great!!
>
> I coul'nt wait  ...so i have dismantled my netbook .... but have no switch
> :-(  on so- dimm ...
>
> Need shorting weiring diagram to solder on wires ...
>
>
>  bottom right, where marked SW100.  the two tracks that are vertical,
> one to the left of the word "R46", one to the right.  solder a wire
> between those two.  if you make it two wires, and you don't mind bits
> of sellotape, you could twist the ends together, cover them in
> sellotape so that there's flat-out zero chance of shorting anywhere on
> the main PCB, make damn sure that there's no strands which could poke
> through.  or, heck, just solder them.  then you can disconnect at
> will.
>
>  how the heck they managed to get the NAND programmed without that i
> really don't know.  probably manually shorted them out, putting it in
> a special developer-kit SO-DIMM holder or something.  *shrug*.
>
> l.
>
>
>