two-factor-authentication

Hi, I've been using Google Authenticator on my phone for years, and recently added 2 new accounts to it, but for some reason none of the codes generated work for those 2 specific accounts anymore. I've tried re-syncing, and all of the codes for my other accounts work fine, it's just these 2...

I’m thinking of the best way to 2FA into any account where it is required, just in case my may 2FA device (my phone) is disabled or stolen or something similar. I thought I may create a free google or Lastpass account saving all the Lastpass grids, Google backup codes etc for all my online...

I don't have any other tools and I saw online that you could use a pair of side cutters to cut your side panel of the computer. I'm looking to install a window there myself. My question is, will a pair of side cutters cut the side panel cleanly? My case is a LEPA brand and I know it is a no...