First. Sorry if I upset you in what I know is a distressing situation. And I really sympathise with the "dead mid cook" bit. Been there done that. Can cost you not just your honour but a lot of food if not compensated for.
OK. I am a little puzzled.
Did you try the full procedure described as I posted it (not just unplugging and replugging)? Did you do the hold down the Wifi button bit? I assume it has a WiFi button. From what I read, they intend to introduce and app? I am not up with the latest and all their namings are too similar and interwoven to sort out easily (almost I may say...weasely )
Sorry. I did not know it had no app. That was just a suggestion. I have an Anova that does have an app, but it was so awful that having to reload it all the time meant that I (and many others) resorted to just turning it on, setting the temp, and using or own timers.
However, regarding drying: I have had a couple of ailed heatings during a cook. What caused mine was steam getting through the ventilation grate at the back of the machine (which I reckon should be further up the body) and gets the gizzards wet. To really dry it, you need to actually pull the body apart (there goes the warranty) and leave it in the sun; that has worked for me both times.. But you could try careful application of a hair dryer into that same vent, making sure you are blowing plenty of air and not too much temperature: keep the dryer away from the vent by a few inches. Let it run for some time (5-10 mins while monitoring) and have another go.
OR, you could assume it is faulty and ask for exchange or refund. Tell them you have tried the methods they suggest and it has not worked. I have found them to be extremely generous about warranty replacements.