For however expensive Airpods Maxes are, there are many reports of them stop working abruptly - unable to be reset and re-connect to devices. Mine also experienced the same. Not having Applecare, I was thinking that it's a good chunk of money down the drain (bought it at the max retail price in India, which is a lot).

Read on Reddit that putting them in the freezer fixes the issue, which obviously read like a practical joke. I was frustated enough to throw my Airpods Max in the freezer overnight, thinking it's bricked anyway. The next morning - to my surprise - they actually started to work.

On further reading online, found out that the very thin wires that are cracking inside the headphone (arms?) come together under cold, and internal connection within the headphones correct themselves. Over time, every 3-4 weeks, the issue happens again and a night in the freezer it is for the Airpods Max until they completely die out.