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geekmaster · 03-07-2012, 11:40 PM

Bummer!

I just realized that one of my LCD displays has a built-in USB hub that I have never used before.

When a kindle is plugged into a USB port on the LCD display, and the display USB is plugged into a host PC, I set fastboot mode from windows with MfgTool. I have a serial terminal open while monitoring serial output from the kindle.

As soon as I disconnect the host PC from the LCD USB hub, the serial display immediately shows that fastboot dropped out and the kindle is sitting at a u-boot bist> prompt, just like when no USB hub is used.

Oh well... it was worth trying, but another dead end...

EDIT: For now, the only way to use MfgTool and fastboot is to run either linux or windows in a Virtual Machine (emulator), or to get fastboot working in cygwin on windows.

*** Has anybody gotten the cygwin version of yifanlu's kindle fastboot tool working correctly?

03-07-2012, 11:40 PM	#2
geekmaster Carpe diem, c'est la vie. Posts: 6,433 Karma: 10773668 Join Date: Nov 2011 Location: Multiverse 6627A Device: K1 to PW3	Bummer! I just realized that one of my LCD displays has a built-in USB hub that I have never used before. When a kindle is plugged into a USB port on the LCD display, and the display USB is plugged into a host PC, I set fastboot mode from windows with MfgTool. I have a serial terminal open while monitoring serial output from the kindle. As soon as I disconnect the host PC from the LCD USB hub, the serial display immediately shows that fastboot dropped out and the kindle is sitting at a u-boot bist> prompt, just like when no USB hub is used. Oh well... it was worth trying, but another dead end... EDIT: For now, the only way to use MfgTool and fastboot is to run either linux or windows in a Virtual Machine (emulator), or to get fastboot working in cygwin on windows. *** Has anybody gotten the cygwin version of yifanlu's kindle fastboot tool working correctly? Last edited by geekmaster; 03-07-2012 at 11:45 PM.