Memory upgrade; abrupt hd failure message

我的问题

After upgrading the mac's memory, I used it for 3 days and suddenly the computer started showing a folder with a question mark ... I tried to move the cable, clean it, fit it again, but nothing resolved. I heard of another case with an acquaintance who has already changed the sata cable three times and decided to risk buying and making the switch.

我的修理方法

I replaced the cable and it worked perfectly, I don't know what may have damaged the cable.

我的建议

Disconnect the mac battery plug before any procedure, dust cleaning, ram upgrade, HD / SSD swap, it is very easy to damage it. In my case it was expensive, I paid $ 49 for the cable, $ 50 for shipping and $ 55.40 in taxes.