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Apple 24-Inch LED Cinema Display Firmware Update addresses an issue that may cause intermittent display flickering. This firmware will only install on the Apple 24-inch LED Cinema Display when it is connected to a Thunderbolt-enabled Mac.


This firmware update may not resolve the flickering issue if a Mini DisplayPort extender cable is used.


Some USB and FireWire devices may prevent firmware updates from installing correctly; disconnect non-essential devices and use only an Apple keyboard and mouse to apply the update.


Mac OS X 10.6.8 or later

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Apple 24-Inch LED Cinema Display Firmware Update User Discussion

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Maclover Member IconReview+0

I'm not sure why this was posted. Just so everyone knows, this is not a 100% official fix from Apple. It is a fix that apple is working on, that if you call into apple care, they may OR may not tell you to apply this and email you a link to it. Some have reported success, others nothing at all, others things being worse.

It may become official at some point, but as of yesterday, it's almost considered a bandaid. From apple insider: "According to MacNN, one customer has received notification of the update from Apple France along with the warning that the patch is still in testing." Just thought people should know.

Reply1 reply
Version 1.0

I have the 24" LED display and the current model MBP 13" i7 and do not have any untoward issue with display. It appears to be a sporadic issue which probably is why there is no hard, sure fix.

Jazzator Member IconReview-1

Update failed with error code 0x800004f

Reply0 replies
Version 1.0
user icon+198
Version 1.0
> 3 3


Current Version (1.x)


Downloads 1,985
Version Downloads 1,985
Type Utilities / System
License Free
Date 29 Sep 2011
Platform Intel 64 / OS X / Intel 32
Price Free
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