Hi there,
so If you’re using an older micro only sim, you should actually purchase a newer koodo sim card, it comes with an adapter for all types of sim card sizes. So once your replace the sim on your account, you can actually punch out nano, try it, and if you decide against just push out the micro sim adapter and use the sim as a micro.
A sim card replacement is commonly $10 and once you have it, you can follow the steps the link below to replace it on your account. Once you do, its good to be used. The link also has a small graphic at the top that shows you what I mean.
Heads up, the s24 from the s5 will be an awesome upgrade if you choose to go with it.🙂👍
https://www.koodomobile.com/en/help/koodo-sim-support