Replace firmware bios chip
Hi all. My MacBook’s firmware password from three owners ago has recently activated itself again. I’m unable to get support from Apple, since I don’t have the original purchase receipt, and my research has shown me that if I replace the firmware bios chip on the logic board (with a new serial number) the problem will go away forever. Before I do that repair I have some questions that hopefully more knowledgable folks like you might confirm, answer, or clarify before I make some purchases and execute the repair.
- Is this the correct part (https://www.ebay.com/itm/BIOS-EFI-Firmwa...) I need to purchase and replace? (The model, A1466, and logic board, EMC 2925, appear to match.)
- This video (https://youtu.be/D4kqC2MaQjg) appears to have pretty thorough instructions on how to execute the repair; would anyone with experience be able to confirm this is good video?
- Although I’m fully comfortable removing and reinstalling the logic board and all the internal components needed to get to the chip, I have never soldered anything before. Is this a repair someone with zero soldering experience should attempt?
Also, let me know if there’s anything else I’m missing that I should know.
Many thanks!
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2 comentários
Let’s make sure we are talking about the correct issue: Firmware password and iCloud password issues are quite different!
Review this doc If your Mac doesn't start up all the way
por Dan
Yes, it's the firmware password—with the lock icon—not icloud. This has also been confirmed by Apple when I brought it to them when the problem first occurred.
por Jude