Htc 520 fastboot or usb debugging?

I have a htc 520 that has a FRP on it, i want to try to reset it with box. But i need to get into ADB Debugging or Fastboot mode. This phone does not go into fastboot when I click Volume down + power, it goes into boot loader but no option for fastboot, it also goes into recovery.

Does anyone know if the fastboot is locked now? or how i can turn on usb debug without having access to the menu