How to factory reset a Soyealink B535-333 (Huawei) 4G WiFi Router

A short video on how to factory reset the Huawei B535-333 4G mobile broadband router back to factory settings. Shows you where to put a pin / paperclip into the back of the router, how long to hold it down for and what the lights on the front of the router will do when you've pressed the button for long enough.