can you try flashing with another usb port or pc/notebook?
i already tried.... and i get the same error...
Here is what i did which i think caused the problem....
1)flash kkmod rom----------------succeed all process
2)i not reboot the tablet but i select update android image and update uramdisk(this file i take from pendrive which downloaded from http://filetram.com/download/multiupload/6095876260/apad-imx515-v1-02-laotao-20110106-rar
3)then i reboot my tablet
4)the tablet is rebooted
5)after the penguin icon it write 'Android'...( but not write 'boting kkmod rom' as usual)
6)then it reboot itself and the step from step 5 happened again and again....
I really hope you can help me solve this problem because of my mistake because i know you are expert in android