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Re: [Libreboot] Could someone please help me unbrick?

From: Albin
Subject: Re: [Libreboot] Could someone please help me unbrick?
Date: Sun, 29 Nov 2015 23:24:47 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.4.0

Thank you Yoni.

Your photos are good, but it would be even nicer to see pictures of the
setup from an angle where one can see *exactly* how the wires are
connected. If I manage to unbrick my computers I will try to take some
photos myself. Also, your setup is for a SOIC-16 whereas mine is for SOIC-8.

I did get a bit further after mtjm explained to me in #libreboot that
the table...

 18              -       - 1
 22              -       - NC
 NC              -       - 21
 3.3V (PSU)      -       - 17

...actually represents the pomona clip. I didn't see it because I got
confused by the dashes. Previously I thought that the dashes were arrows
and that 18 something should be connected to 1 something.

I will make a new attempt tomorrow.



Yoni Rabkin:
> Albin <address@hidden> writes:
>> Dear libreboot users,
>> I'm in the unfortunate situation of sitting with two bricked T60 and one
>> macbook2,1 since more than a year. I have the required unbricking
>> equipment: a BeagleBone Black (rev. c), a pomona 5250 clip and cables. I
>> just can't figure out how to attach the wires.
>> I know there is a table on "How to program an SPI flash chip with the
>> BeagleBone Black" ( but
>> I simply don't understand it. It's not at all clear to me what should be
>> connected to what.
>> Could someone please explain this to me, improve the current
>> documentation or even provide a link to documentation elsewhere?
>> I'd *really* appreciate help with this. One of the computers is for a
>> family member this Grav-Mas.
> You need to take the clip, and connect it to the BBB
> ( according to the
> numbers in the section "Connecting the Pomona 5250/5252" of
> The result will look something like the photos I've attached (which is
> how it looks when I do it). Also, if you you find the numbering
> confusing, try to use the same colors as you find in the photos
> (especially for GND and VCC.)
> What part exactly is the problem?

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