A loud "boom" or "pop" sound when turning the unit on or off (ACC on/off) is still a frequent complaint.
: Users have encountered an error saying "cannot install package over a newer emmc version" when trying to update with official manufacturer firmware. An "interesting" fix involves downgrading to a specific 2020-05-11 firmware XDA Developers zq8003 android update fixed fix
If you have more details about the device (like the brand or what "ZQ8003" specifically refers to), I could offer more targeted advice. A loud "boom" or "pop" sound when turning