u/40Leagues

I'm completely new to all of this, and recently got my YYsluping miner. I didn't realize my laptop wifi wasn't set to my 2.4 GHz network, and now I'm getting the message in the image. I would like to flash the latest firmware to hopefully clear this, but I can't seem to get the unit into boot mode. I only see 2 buttons on the entire unit, which are to the right of the display. I've tried all combinations without success. Hoping someone who has or is familiar with this unit can pass along some suggestions. Thanks in advance.