I have two Acer Chromebook Spin 713-2W laptops. One was manufactured in August of 2020 and another manufactured in November of 2020. The one manufactured in August works great and I use it daily for hours at a time. The other manufactured in November of 2020 crapped out with the infamous "ChromeOS is missing or damaged" message. When I try to restore the ChromeOS, it's a hit or miss (usually a miss) on whether or not the restore will be successful. I see on many forums that this fault afflicts many Acer Spin Chromebooks manufactured in the Fall of 2020. When I opened both Chromebooks I noticed that the one manufactured in August uses Micron memory chips, but the one manufactured in November uses SK Hynix memory chips. Could the infamous "ChromeOS is missing or damaged" and subsequent failure to restore be due to either a bad lot of SK Hynix chips used in the fall 2020 manufacturing, or poor surface mount of the chips with weak solder joints that fail over time? If so, does Acer offer any recourse to Chromebook owners that are experiencing this failure rendering their expensive laptops useless?