New phone won't dial out and shows as "unregistered device" after putting old SIM Card in

[Help202384]

I just put my old Sim card in new device and I can't dial out because it says that my device is unregistered. What do I do?

[userVGQAdo9RFw · Accepted solution]

Call service provider to register new device and then it will work.

[userVGQAdo9RFw]

I hope it's not cricket,boost,track phone etc

[Biggus]

Boost can be done through their website if it's them, just need IMEI and an unlocked phone (obviously). It's a very quick process.

[198mart]

I think if you call your carrier and give them that sim number should take care of that