Thinkpad T410s failed to erase (corrupted?)

[Sea Wright]

Hi all,

While trying to get coreboot working on a T410s, in the most recent flash (after multiple
working successful flashes) the clip detached in the middle of the write process. I saw
some error message briefly (I think it mentioned corrupted) before my ssh session
terminated before I could finish reading it.

Now, with a new clip, I can read the chip perfectly, but trying to write/erase leads to
these errors: https://paste.flashrom.org/view.php?id=3156
Failed at 0x0000000010! Expected=0xff, Found=0x5a, failed byte count from
0x00000000-0x007fffff: 0x3dc7fe

It is possible to write what is read from the chip (eh cock doesn't match what I tried
to write to it) back onto it without failure.

Any suggestions?
menaechmi

[Stefan Tauner]

On Sat, 29 Dec 2018 19:23:45 +0000
Sea Wright via flashrom <flashrom(a)flashrom.org> wrote:

  Hi all,
 
 While trying to get coreboot working on a T410s, in the most recent flash (after multiple
working successful flashes) the clip detached in the middle of the write process. I saw
some error message briefly (I think it mentioned corrupted) before my ssh session
terminated before I could finish reading it.
 
 Now, with a new clip, I can read the chip perfectly, but trying to write/erase leads to
these errors: https://paste.flashrom.org/view.php?id=3156
 Failed at 0x0000000010! Expected=0xff, Found=0x5a, failed byte count from
0x00000000-0x007fffff: 0x3dc7fe
 
 It is possible to write what is read from the chip (eh cock doesn't match what I
tried to write to it) back onto it without failure.
 
 Any suggestions?
Hi,

the T410s is flashable externally without too much of a problem. IIRC
you have to connect both #WP and #HOLD (to VCC potential) though. But
since it worked in the past there are two possibilities I could think
of: you broke the chip by shortening some pins during detachment. I
don't think that's likely though and the 5a you are reading is just
what's supposed to be there, i.e. reading works fine as you say.
It is by far more likely that your setup broke in the meantime. Check
your clip and respective cabling for good connections (measure!).

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner