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I upgraded to version 11.2.1 of big sur yesterday... Initially I had a bluetooth issue but that's gone now. More worrying I am unable to see any applications in Finder and appear to have lost a lot of photos from Photos and iPhoto. Finder preferences doesn't show anything I tick.... this is not good
MacBook Pro 13″, macOS 11.2
Ooops hit the wrong button.... No you seem to think I understand about resetting NVRAM. And now I find my mac Mail is no longer working. It was this morning, after I upgraded. ~And how do I start in safe mode?
Ok, so first I am assuming that your mac is not one of new ones with "Apple Silicon" (the new 13" models released in November). If it is one of the new ones, the following does not apply, at least not in the same way.
1) Resetting NVRAM: shutdown your mac; press the power button and immediately press and hold these four keys: Command, Option (in some keyboards it is called "alt"), P and R. Keep holding and let your mac restart some 4 times (it does so automatically), then release the keys and let it start normally.
2) Starting in Safe Mode: shutdown your mac; press the power button and immediately press and hold the SHIFT key. Keep pressing until the Apple logo appears on the screen.
Safe Mode will take longer to start, will clear some stuff and do some testing; it will also only load the essential software.
It is common for problems NOT to occur in Safe Mode; when you have a problem and it does NOT occur in Safe Mode, you will know that it is caused by some third party software that simply is not loaded when you use Safe Mode. This will help us in figuring out what the problem might be.
As I wrote before, test in Safe Mode. Also try resetting NVRAM.
What version did you upgrade from?
See if the problem persists if you boot in Safe Mode.
Please assume I am a complete numpty about tech.... you'll have to tell me precisely what to do key hit by key hit
issues with big sur 11.2.1 upgrade
