my htc explorer stuck while rebooting into recovery.

[AC Question]

i am using htc explorer rooted for a long time.but while installing new recovery which is phills recovery for install new rom, i have used recovery flash utility app. when it successfully installed new recovery i rebooted into recovery and at that time it goes black it doesn't show that fastboot,recovery type menu.screen goes blank but my key is working. pls help me.