If you're worried it's your SIM, you can goto a Rogers store, and the techs there have 5G SIM cards that they can test your phone with. If their SIM cards don't work, you'll know it's a problem with your Phone model or how it's setup, instead of yo...
I suspect that Rogers has not completed it's rollout/setup of the n38 or n41 5G bands, as I recently bought the Global version of the Sony Xperia 1 III (512GB model XQ-BC72) - which only has the n38, n41, and n77 5G bands, and not the n66 or even n71...
