HTC Keep rebooting itself and will not let me get to the Bootloader

[Mecasloth]

My HTC is on it's last legs, it's been a good run but I still need to use it for a while longer. The Phone has been rebooting itself for a good twenty minutes now, over and over again while sitting on the charger. I have gotten to the bootloader itself twice now but both time it restarted without me being able to click anything and every time I hold down the buttons for the bootloader it gives me the "HTC" black screen for two seconds before restarting again. I have not rooted it or did any funky stuff with it but I do have photos and other things that I wish to keep so factory reset isn't an option right now unless it's direly needed.