Hi, i once had my head units HDD die in my 07 ls460l and fixed it by replacing the whole head unit. It wasnt the hardest thing but i was wondering if this is a common problem or a fluke? I did read lately in the manual to wait 6 min after powering the car down before disconnecting the negative terminal. I know i never did that in the past. Is it possible thats what lead to the Hard Drive failure in my old head unit? Im only asking because any time i disconect my cars battery i cross my fingers when the head unit needs to load back up lol. I bought an obd2 backfeeder for battery swaps but i dont think its a good idea to use it during repairs right?

 

How many other hard drives do you have that are still spinning after almost 20 yrs?