No video image, screen not recognized, HDMi out working fine! HELP
Hi Guys!
Today I have a broken MacBook Pro 13" A1425 late 2012, 2.9, i7, 8GBRAM, Intel HD Graphics 4000, C02L404JDR55. The reason for this failure is moist inside the unit. I received the unit with crashed SW, with windows 7 on it, and started the reinstallation, when I came to sierra SW upgrade, left it on download and everything was fine, but when back, the screen was black! I make some troubleshooting ended with external HDMi display which works. I tested the hardware, and it is shows only the extern screen, but not the MacBook retina display! it was totally disabled. I decided to dissemble the unit to see what is wrong. Another screen has given the same, so it is something with the logic board! When I dissemble the logic board, I discovered salted connectors and some liquid/moist stamps on different places, especially on the bond cable between the 0/I board and logic board. I looked on all visible parts by microscope with no luck. Can anybody help me with a diagram, guide, or any helpful tip what have disabled the screen? It can be fusible resistance or something small burned up.
Es esta una buena pregunta?
Can you add some photos to your question, with the area where you found moist and salted connectors?
- de Oros