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Everything’s working well on my M3 MBA, having put it through its paces on 15.5 for the past week.

I hope others are having the same positive experience.
 
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I found a solution that has worked for me for this problem.

It is essentially resetting both SMC and NVRAM after updating to latest Sequoia.

Original post on Apple Support Community site entitled 'Sequoia 15.0 bugs - external hard drives' by user 'RobMcslay'
Thanks for sharing. Unfortunately, that doesn't work for me at all. On Apple Silicon, there's no SMC, and the NVRAM is reset at every reboot.
 


Apple today released macOS Sequoia 15.5, the fifth major update to the macOS Sequoia operating system that launched last September. macOS Sequoia 15.5 comes a little over a month after the launch of macOS Sequoia 15.4.

macOS-Sequoia-Feature.jpg

Mac users can download the ‌‌‌macOS Sequoia 15.5‌‌‌ update through the Software Update section of System Settings. It is available for free on all Macs able to run macOS 15. Apple has also released macOS 13.7.6 and macOS 14.7.6 for older Macs not able to run macOS 15.

macOS Sequoia 15.5 is light on new features, with Apple listing only a change to Screen Time in its notes.

More information on what's new in macOS Sequoia can be found in our macOS Sequoia roundup.

Article Link: Apple Releases macOS Sequoia 15.5
Dears,



"How's the battery with macOS Sequoia 15.5 ?" macbook Air M1
 
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