HTC ONE SV crashed??


Hello, I have the following problem with the HTC ONE SV:
When starting the mobile I always land in the bootloadermenue / Fastboot I do not get out of this loop. Is the phone to repair? If so how do I have to make it and what do I need for it?
In tampered / locked I come at the cell phone.

Ask for an answer.

Please excuse my bad english can only schoolglish: