[q] htc desire x not booting up . Vibrate 7 times topic

hi,

i tried rooting my htc desire x last night.
while installing SU using TWRP , a message appeared cannot mount cache.
After that I started my phone to chech whether it has been rooted.
It was not rooted as it said that it failled to upload the binary or something.
So I turned off my phone to check it. But after turning , my phone does not switch on.
After some times it vibrates for 7 times and nothing happens. Even HTC LOGO wont appear.

I tried to open the recovery using volume down and power on it is also not working out.

Kindly help.