Htc desire 300 help!!!!!

I have a HTC Desire 300 in my possession, Problems are the HTC wont go past the HTC boot logo.. Ive tried to unlock the bootloader via htvdev, but when i recieve the unlock screen on the htc phone it will not do anything when i press the power button on YES to continue, it will let me press NO however... i cant seem to find anything online that will help in just restoring the phone.. Ive tired the recovery option but it makes no difference..

HBOOT MENU
G3U PVT SHIP S-ON RH
HBOOT-1.18.0002
RADIO-14.11.36Q4.21
OS-1.10.401.4
eMMC-boot