My EVO 4G's charging port is broken and I am trying to gain root access on my device. Is there anyway to do so without using the USB port to connect to the computer?
There is currently no way to do this. The only way to gain root on HBOOT 2.18 is to use the HTCdev tool to unlock your bootloader which requires a USB cable to work since it uses fastboot commands. Revolutionary and other methods only support HBOOT versions up to 2.16.0001 on the EVO 4G.