Solved Error 4Sns 1 40000000 Icor 21 925 Macbook Pro 13 Unibody Mid 2012
Chosen Solution Hi! When I run the Apple Hardware Test on Macbook Pro 13" 2.5 GHz 2012. It shows me error 4SNS/1/40000000: ICOR - 21.925. Could you explain me what wrong with my mac? Thanks for your answer. I understand that my logic board has problem with system sensor. But, when I try to run AHT test again it shows me the same error but the last number is different all time....