Default cant install ruu on desire hd,,,plz help

hi,i have desire hd which need to install ruu,customer came to me with a condition of semi dead,
it didt power up only vibrate and red light blink,
it can go in recovery by press vol- and power.here problem is when i run ruu in fastboot mode it goes blank when ruu need to reboot device (waiting for bootloader) and stuck here with blank screen,

hoping that i convey my problem,plz help me to fix it.

ace pvt ship s-off rl
hboot-2.00.0027
microp-0438
radio-26.14.04.28_m
emmc-boot
sep 7 2011,19:06:24