I bought a 800XL from eBay with this switch from left to right in 3 positions i get
1st position 64XL with blue ready screen which pass all the tests for ram/sound/keyboard all okay
2nd position i get ether a red or yellow blank screen
3rd position i get black screen with i can type text on too
I'm guessing the switch is for xl/os b/os a in that order am i doing something or does the switch job sound like it's been botched job?