1 iMac 20" A1224 dark screen with 9 beeps
I have gone through the previous messages about this issue:
3 short + 3 longer + 3 short beeps means EFI ROM checksum failed. I downloaded and created Firmware restoration CD 1.6 for iMac7,1 from Apple support.
Turned power on and iMac sucked in the CD and ejected after 1 minute and started beeping cycles again.
Questions:
- I burned the CD on Windows with PowerISO. Should I try burn the CD on Mac instead?
- It seem doing something with the CD. Or it's hardware issues with the ROM or board that firmware refresh won't fix?
Any feedback welcome. Thanks.
ps. I remove the screen and couldn’t see any bad connection and also replaced the lithium battery too.
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4条评论
I have the same problem and I was unable to find the 1.6 Restoration CD (link @apple gives not available error).
Please where did you find the iso?
由 Giorgio D. 完成的
Hi! I have the same problem. I try to find Restoration CD 1.6, but on an Apple's website, the link is dead. Dropped the entire internet in search of a disc! I've been looking for three weeks! Maybe you still have an image of this disk?
由 pr.pavlenko 完成的
Do you have the link for the firmware restore cd 1.6 the Apple site link is dead I also have this issue. I have access to another Mac to burn the image to cd
由 Ian Walmsley 完成的
You'll need to contact Apple Support to get it.
Point to the Firmware Restoration CD 1.6 page so they can see someone messed up the file access.
由 Dan 完成的