Question mark folder of death or beach ball of death (mac)

Oh when I get them these are FUN but we have to make sure we have a realistic time frame. Most of the time it is not your fault if you bought all the parts double-checked everything assembled it and it still doesn’t want to start. That does not mean there is not hope most of the time we can find out which connector or which part is missing or not properly connected to get it to work.