you can make it with a usb A female to male cable, this is a basic diagram of how to set it up. TRR1A05D00 5 Volt SPST DIL Reed Relay BESTAR BR-500 Reed Relay (5V, 500Ω) another way to set it up is to ...

A locked Android phone A Nethunter phone (or any rooted Android with HID kernel support) USB OTG (On The Go) cable/adapter (USB male Micro-B to female USB A), and a standard charging cable (USB male ...