apple hardware test error DEC400
trying to boot my MacBook Pro 15inch 2012 non-Retina 2.7Ghz i7 Quad-Core A1286 to AHT APPLE HARDWARE TEST and i cant enter..just came out this message error DEC400..what does it means? is there any other way for me to do AHT??
MacBook Pro 15inch 2012 non-Retina 2.7Ghz i7 Quad-Core A1286
16GB 1600MHZ DDR3L RAM
2TB SAMSUNG 850 EVO SSD
2TB FIRECUDA SSHD
MacBook Pro