Updated procedures specifically for the iMac Pro , M1 MacBook Pro , and M1 Mac mini .
The toolkit includes several critical utilities used during the repair process: Mac Resource Inspector (MRI):
Apple Service Toolkit is a set of diagnostic tools used to identify hardware issues in Apple products. It ensures that components like logic boards, sensors, fans, and memory are functioning according to Apple’s strict specifications.
For most home users, standard Apple Diagnostics are the built-in alternative for checking hardware health without needing specialized technician tools.
Apple’s strict control over AST has led to a cat-and-mouse game with the repair community. Some independent shops use cracked versions of AST 1.5.3 build 30 to perform (e.g., replacing a single capacitor on a logic board and then verifying with AST that all sensors report normal values).
