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Old 12-07-2015, 07:41 PM   #8
knc1
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Posts: 17,212
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Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by RoBoKoP View Post
the kindle won't boot.
before it bricked I was playing with system_diags while the kindle is on. (I mounted mmc p2)
this caused some screen corruptions so I had to reboot.
the kindle never booted again.
You had to have been running the 'main' OS, otherwise mmc p2 would have been busy and you couldn't have mounted it.

While running the 'main' OS, no changes to the alternate boot system would have corrupted the screen.

Which means probably a typo -
a change intended for the 'diags' system was done to the 'main' system.

OR

Something shared by the two systems (/var/local is shared between the two systems, but I can't think of anything there that would have corrupted the screen).

Just exactly what where you trying to change?
Any information might help.

Writing to the screen frame buffer would have made changes to the screen (but not anything that wouldn't be cleared by a re-boot).

Any chance of **two** or more changes?
One, not noticable while running, only affecting the boot process.
The second one that made changes to the display (which would not have a lasting effect).
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