Unhappy [Q] need help plzz

helloo
my htc desire hd(at&t) stuck on htc logo...and viberates 7times
when i go to hboot it can not wipe or factory reset
when i go to recovery it gone again on htc logo n viberates
here is a info
c:\mini-adb>fastboot getvar all
INFOversion: 0.5
INFOversion-bootloader: 2.00.0030
INFOversion-baseband: 26.17.14.11_M
INFOversion-cpld: None
INFOversion-microp: 0438
INFOversion-main: 3.20.502.52
INFOserialno: HT18VT202154
INFOimei: 358920041602423
INFOproduct: ace
INFOplatform: HBOOT-7230
INFOmodelid: PD9812000
INFOcidnum: CWS__001
INFObattery-status: good
INFObattery-voltage: 3733mV
INFOpartition-layout: Generic
INFOsecurity: off
INFObuild-mode: SHIP
INFOboot-mode: FASTBOOT
INFOcommitno-bootloader: 62d2f26e
INFOhbootpreupdate: 11
INFOgencheckpt: 0
INFOregion-id: 0
all: Done!
finished. total time: 0.009s

plz help i m waiting