If you have BTC on a Ledger Nano S that you haven’t touched in years (because let’s be honest you’re avoiding it), take 30 min this weekend to make sure it works. We have seen so many ledger nano s screens die over the years. If yours is too dim to read, a hack we found is to try reading it through your phone camera. If that doesn’t work, try restoring your seed on a new device. If that doesn’t work, you can do a screen represent on the ledger with a bit of handiwork and a screen from Amazon. Don’t recommend updating firmware until confirming your seed works, for the reason below. And honestly you really don’t want to be in a position where you are restoring the seed for your single sig device hoping it works. That is just anxiety maxxing. This is why multisig is so important to reduce risk. If you have BTC on a ledger nano s, seriously consider moving it off soon to avoid this problem.