I have 4x LuckyMiner LV06's, and I indeed flashed the AxeOS firmware via the BitAxe GitHub repository and it bricked it. I had to solder some TTL pins to the board and flash the firmware that way. I did this on all four of my miners and they've been hashing nicely for a month.

I've seen no evidence online to speculate it's doing anything out of the ordinary. It mines just fine using the firmware they ship with. I just wanted to use firmware that was open source instead of closed source.