You only need the "OTG cable" not the "female adaptor". .

If you are S-ON you will still need to flash the "boot.img" from the ZIP file you are flashing. You need to have your phone connected to the computer to flash the "boot.img", and you flash that from "fastboot" on ADB on your computer.

What is your HBOOT? its on the screen when you reboot holding power button + volume down button.