27" Flickering Screen firmware update ...

TattooedMac · TattooedMac #1 (**permalink**)

02-04-2010, 07:56 PM

Here is the latest from 

27" iMac Firmware Update for Flickering Screen

kaleem · kaleem #2 (**permalink**)

02-05-2010, 01:45 AM

careful!!!
My iMac was flickering out of the box. the first "graphics firmware update 1.0" that came out Dec 21 cured it. I installed this latest firmware update today (Display Firmware Update 1.0) and now my screen is flickering every few seconds!! And the worst part is, I forgot to time capsule before the update. I recommend everyone avoid this update if your screen isn't already flickering.
good luck,

bobtomay · bobtomay #3 (**permalink**)

02-05-2010, 04:34 AM

And just an FYI: A backup will not take you back to before a firmware update. A firmware update updates your hardware. It is not an update that is applied into your OS that can simply be undone by a restore. To undo a firmware update you would need to re-install an earlier firmware.

Unless a particular firmware is advised for all users of a device, it is typically not advised unless you are experiencing the issues which that particular firmware addresses.

Raz0rEdge · Raz0rEdge #4 (**permalink**)

02-05-2010, 08:52 AM

I suppose the adage "if it ain't broke, don't fix it" is appropriate here..

Regards

macbell10 · macbell10 #5 (**permalink**)

02-07-2010, 11:31 AM

Exactly what does this so called flickering look like?
I am only asking because of late when my iMac 27" comes out of sleep mode the odd time it goes right back into sleep mode but does come out once I activate via keyboard,mouse etc..Once I begin working on the computer there is no issue.
Thanks in advance.
Pete.

chscag · chscag #6 (**permalink**)

02-07-2010, 08:53 PM

What you described is not "flickering". The flicker problem is similar to a fast blinking light - on - off very quickly. The Apple discussion forums have dozens of different descriptions you can look over if you like. LINK

Regards

TattooedMac #1 (permalink)
Member Since: May 19, 2009 Location: Waiting for a mate . . . Posts: 6,565 Mac Specs: 13"MBP 2.9Ghz Intel Core i7 10.8.3 ~ iPhone5 6.1.3 ~ iPad Mini 6.1.3 ~ ATV2 5.2.1	02-04-2010, 07:56 PM Here is the latest from  27" iMac Firmware Update for Flickering Screen Dont forget to use the Reputation System if someone has helped you out !!! Arguing with a zealot is only slightly easier than tunneling through a mountain with your forehead!!!!! "Can't innovate any more, my **" Phil Schiller Last edited by TattooedMac; 02-04-2010 at 08:04 PM.*
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kaleem #2 (permalink)
Member Since: Feb 05, 2010 Posts: 1	02-05-2010, 01:45 AM careful!!! My iMac was flickering out of the box. the first "graphics firmware update 1.0" that came out Dec 21 cured it. I installed this latest firmware update today (Display Firmware Update 1.0) and now my screen is flickering every few seconds!! And the worst part is, I forgot to time capsule before the update. I recommend everyone avoid this update if your screen isn't already flickering. good luck,
	QUOTE Thanks

Raz0rEdge #4 (permalink)
Member Since: Jul 17, 2009 Location: MA Posts: 6,068 Mac Specs: 27" i7 iMac with 16GB RAM and 1TB HDD, iPhone 3G & 4, iPod Nano 16GB, iPod Shuffle, iPad 2 16GB WiFi	02-05-2010, 08:52 AM I suppose the adage "if it ain't broke, don't fix it" is appropriate here.. Regards
	QUOTE Thanks

macbell10 #5 (permalink)
Member Since: Feb 07, 2010 Location: Windsor,Ontario.Canada Posts: 15 Mac Specs: iMac 27: i7,1TB HDD,8 gig Ram	02-07-2010, 11:31 AM Exactly what does this so called flickering look like? I am only asking because of late when my iMac 27" comes out of sleep mode the odd time it goes right back into sleep mode but does come out once I activate via keyboard,mouse etc..Once I begin working on the computer there is no issue. Thanks in advance. Pete.
	QUOTE Thanks

chscag #6 (permalink)
Member Since: Jan 23, 2008 Location: Fort Worth, Texas Posts: 32,372 Mac Specs: 21.5" iMac 2.5 GHz i5, iPad 3rd Gen., 3 iPods	02-07-2010, 08:53 PM What you described is not "flickering". The flicker problem is similar to a fast blinking light - on - off very quickly. The Apple discussion forums have dozens of different descriptions you can look over if you like. LINK Regards
	QUOTE Thanks

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