Hello, I have used Dropbox since about 2016, and have about 250 files created on my PC. Updating files on the PC used to automatically update the files on my mobile phone until I replaced it with a new phone recently. I managed to copy the 250 files (somehow) initially, but they don't ever get updated. Please keep replies simple, as I am 69 and not very tech savvy. I don't think that I use the Dropbox app on my PC - Dropbox just comes up alongside my general files and photos. Any help welcome!