Can the A5 chip be upgraded to a A8 If not is there any chip that will work

Original Xbox one it’s nothing wrong with the console it’s the power brick Thea that say Xbox one them they all are junk an an are designed that way so u think the Xbox has something wrong so MS can make a $150 bucks off u just to replace the power brick buy another one a off brand power supply this will fix ur problem

If nothing works wrap a blanket around the Xbox while still it's on it will get very hot when it shut it off An back on with hdmi cable on it should work I had to do it for mine

U2 ci chip is busted replace the chip stop using 3rd party charges