[bole2u]

Hi,guys. I have made some mistakes when I fix brick(kindlepaperwhite one).
I had done the "Erase MMC0", and then "Export FAT partition". After that, I tried to open it, but the computer could't read the disk, so I choosed the optin to format it, then I copied the upgrade package inside, after "Update using update*.bin file on FAT partition", It showed me something, but I had no idea what to do, so I ended the connection. Then I tried to set up the connection again. It showed me this as follows:

? - alias for 'help'
bist - start Built In Self Test
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootm - boot application image from memory
go - start application at address 'addr'
help - print online help
idme - idme - Set nv ram variables
log - manipulate logbuffer
printenv- print environment variables
reset - Perform RESET of the CPU
run - run commands in an environment variable
setenv - set environment variables
version - print monitor version
uboot > bootm
Wrong Image Format for bootm command
ERROR: can't get kernel image!
uboot > ?
? - alias for 'help'
bist - start Built In Self Test
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootm - boot application image from memory
go - start application at address 'addr'
help - print online help
idme - idme - Set nv ram variables
log - manipulate logbuffer
printenv- print environment variables
reset - Perform RESET of the CPU
run - run commands in an environment variable
setenv - set environment variables
version - print monitor version
uboot >

Can anyone help me? I know nothing about these commands. Thx!