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Old 05-12-2012, 11:42 PM   #4
Junior Member
leihongwang began at the beginning.
Posts: 9
Karma: 10
Join Date: May 2012
Device: kindle4
Yesterday, I tried to update firmware to 4.0.1, but unsuccessful (an error occured and then can not boot into the main mode).The mmcblk0p1 I used was downloaded from internet:""

Just now I did the following:
1 fastboot.exe flash kernel kernel-4.0.1.img
2 dd if=/mnt/us/mmcblk0p1.img of=/dev/mmcblk0p1 bs=4K
3 dd if=/dev/zero of=/dev/mmcblk0p3 bs=4K count=1K

After that, the diags still has no response when I try to boot into the main mode.Is there anything I missed in the unbrick precedure above?

Thank you all the same.

Originally Posted by hostar View Post
Which mmcblk0p1 did you use?
Some your backup or downloaded one from the internet?
If you used from internet (here), have you had update your firmware to 4.0.1 before?
If no, there is probably conflict.

So if you haven't before updated firmware to 4.0.1, download K4 4.0.1 kernel from links above and flash it with fastboot or dd.
(fastboot.exe flash kernel filename.img)

Last edited by leihongwang; 05-12-2012 at 11:45 PM.
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