The whole point of key cards is that the code changes with every new guest, so you shouldn’t be able to use an old key card in any room until it is re-programmed. This sounds like a huge failure in security if they didn’t reset the codes with every guest.

Yes. Bluestacks works fine uploading pics to Instagram from a PC. It can access any Windows folder. The problem is that it insists on installing Android games for you to try if you don’t pay a yearly fee. When installing Bluestacks, make sure you run the installation program as “run as administrator”. It doesn’t work…