After working yesterday today only black screen
Hello to everybody
Yesterday I got fixed my MacBook pro 4.1 black screen (but even no chime or something) by letting it settle with the black screen for half an hour and then restart it. It wotked flawlessly until this morning. Machine starts, it even boots, but I don't have any output on internals motor. Is this the "GeForce" error? Can I fix it myself?
Thanks for help
Robin
Questa è una buona domanda?
4 Commenti
Have you tried an external monitor yet?
da oldturkey03
Yesterday I used the "Towel Method" wich worked great but I am not quite sure how long it is gonna last :/ How can I reflow / reball it? And which Termal Paste should I use?
Thanks ;)
da Robin Dieker
you'd have to take it apart, remove the heatsink and old thermal paste. Apply some flux around the GPU and use a heat gun to reflow it. The amount of time really depends on the amount of heat you use/heatgun.
Generally with the heat gun it's about 1-2 mins on high. Sometimes less.
Let it cool for about 20 mins or so
I use arctic silver 5 thermal paste
da Alfy
Robin - Great care must be taken when you try reflowing a large chip like this one. Often the other chips, small resistors and capacitors can get un-soldered or dislodged. If you've never done this I would recommend bringing in your system to either an Apple Store or Apple authorized repair service. Review the iFixIT guide for your system on taking the logic board out and make sure you have the correct tools & ESD protection before starting.
da Dan