And in the box, there was new sim card, so I put a new sim card in new phone,
but it wasnt work.
So I put the ex-sim card in new phone.
Is it okay?
Best answer by Dinh
Yes, you could if the old SIM fits into the phone.
the new SIM was inactivated. You could keep it as a spare and use it later https://www.koodomobile.com/help/koodo-sim-support