I have had a problem with my Apple MacBook Pro for some time. When changing focus from one application to another the first letter typed is often ignored. Judging by the complaints I've read on the web I'm not the only one who's experienced this problem and Apple has updated the BIOS code several times trying to squash this bug.
For the last month I've seen a boot ROM update listed every time the updater runs. This last time I noted the BIOS version in System Profiler (MBP21.00A5.B07) before the update and after and found that the update wasn't being installed.
I drilled down into the instructions and found that after the system had been shut down that you need to press the power button until the sleep light starts to blink. Then you let up on the button and voila - updated BIOS. BUT NO!
The next thing to try to remediate the problem is to run the BIOS updater application (MacBook Pro EFI Firmware Update) in the utilities folder. I did that this morning and got a pop-up that advises the system will be shut down upon clicking continue. When I clicked continue it ran an install and then shut the system down.
I held the power button until the sleep light started to blink and then let go. This time I got the Apple logo with a progress bar beneath it and when the system came up the BIOS version had been changed (MBP21.00A5.B08).
More later on whether this fixes the problem.
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