syverl wrote:
i am locked out of my macbook pro 2019. I am the original owner and have been using it ever since as a personal device. A few days ago, I could not log into my MacBook and went through password reset and got in.
Which specific procedure did you follow for "went through password reset"?
Then this morning, the same story: does not let me log in and now I am fully locked out. When I try to use my Apple account to reset it tell me that this account does not unlock it. Note: my laptop does show up in my Apple account as a registered device. I tried everything I could find online but so far still am locked out and recovery mode reset says “The supplied Apple Account was unable to unlock this volume.” Reset password failed.
Do you have a viable/reliable backup?
Have you tried booting into Safe Mode?
Have you tried booting into Recovery, and then running Disk Utility and First Aid? Run First Aid on the volumes, then containers, and then at the device level. Repeat until no errors are returned.
The motivation for running First Aid is that there could be some catalog error or even a bit flip (cosmic ray?) and SOMETIMES First Aid can recover from certain errors.
While in Disk Utility, check the SMART status on the internal drive.
If still no resolution, I suggest you contact Apple for service. There are different possible hardware or software issues that might cause this. You may have better luck with an Apple Authorized Service Provider, as opposed to an Apple Store/Genius Bar, since AASPs are independent shops and have more flexibility about working on older Macs.
I ask about the backup because once Apple determines that there are no hardware issues, the standard approach is the completely erase/format the drive and have you start fresh, with an empty computer running Tahoe, reset to factory settings. At this point on first boot up you can restore your accounts and files with Migration or Setup Assistant, which I would suggest but not to restore settings or apps/software (those should be reinstalled and re-entered anew).
You have an older "vintage" Mac so something hardware related is not out of the question and quite possible. I have nothing against older Macs: I have (and am typing on it now) a 2019 16" MacBook Pro that is running great (but I keep multiple backups) and I also have some ancient Macs still running well -- 2013 and 2010 MacBook Airs and a 2015 iMac.
The basic restore to factory settings process is described here: What to do before you sell, give away, trade in, or recycle your Mac - Apple Support Be ready for Apple to suggest this but you must have a backup or will lose all content.
Since you should log out of your Apple ID and deactivate Find My as part of this procedure, you might not be able to do that in your current situation, hence reaching out to AASP may be needed, but that backup is essential to restoring your Mac to how it was and getting all your files back.
If you don't have a backup, don't erase yet, instead explore other options with the AASP, such as Target Mode or other approaches.