Default Stuck on htc logo boot loop

So I have been having lots of problem with my phone. I just flashed the RUU and was able to revive the phone after 2 months of trying. The phone boot up and I got everything setup like you would after a factory reset. Then suddenly it crashed and turned off. I booted into bootloader and tried to go into recovery. Since then the phone is stuck between going into recovery and the htc logo. I can't turn the phone off and I can't get into bootloader. I know after 2 months trying different things that there is a major hardware problem. I'm passed the warranty and out of $600 for this phone. So I'm just messing with it now. Any ideas on what I can do to get into bootloader? Even though I won't be able to do **** cuz it will crash again.

I'm looking for a motherboard if anyone knows where to get one.

Sent from my SM-G900T using XDA Free mobile app


Sent from my SM-G900T using XDA Free mobile app