A knife is an extremely simple tool and you're making a very modest requirement of it (that it should cut cheese). There's no way that a 2023 smartphone is equivalently simple, nor that "Just access arbitrary remote stuff over the Internet" is a similarly modest requirement.
Lets try something appreciably more complex and do an equivalently tricky task. Lets use an 1873 steam train to travel from London to Derby.
We run into more or less the same problem. Functionally, this can work, you'll have to buy the coal from somewhere and hire tankers to move the water where it's needed since there is no longer provision for that- but much harder you'll need to secure an extraordinary amount of special case paperwork to make this happen, because obviously your 1873 steam train isn't authorized to use this route, you will need to retro-fit safety equipment that an 1873 steam train was never designed to work with, and you will need to re-train people to operate it.
Don't worry though, you have preserved the important part - your 150 year old train is still ludicrously unsafe compared to its modern equivalent like the phone. Relatively minor impacts will turn the passenger compartments into kindling, with passengers still inside, because they're basically just a wooden box resting on a simple metal platform, not a monocoque design and even after fitting mandatory safety equipment the train can't effectively stop anywhere close to fast as modern trains if things go wrong.