We are replacing a lost phone. We bought a new Samsung S21 at Best Buy that they said would be compatible with Republic Wireless. How do we get it connected? Do we need to get a SIM card from Republic?
An unlocked Samsung Galaxy S21 purchased from Best Buy is indeed Republic compatible.
You will indeed need a new SIM, however, you need to be aware the new SIM comes with a different plan than that used by the lost phone. If you haven’t seen it, new plans (among other things) were launched this past Tuesday:
The process for acquiring a new SIM involves purchase of a new plan and is described here:
The outlined not exactly elegant process is expected to improve over the next few weeks, however, given you’re replacing a lost phone, it’s understood you probably don’t want to wait.