How would I Know if my phone is locked?

In order to find out if your phone is locked, be sure to follow two cases below.

Case 1 : Before switching New SIM Card
Method 1: General Method
– Just Dial *#06# on your phone. Your phone’s IMEI number appears.
koreasim-sim-howto-find-imei

– Call your carrier and ask them to confirm your phone’s status.
– They’ll be able to tell you if your phone is unlocked and, if it isn’t, if it qualifies for unlocking.

Method 2: Using a Different Carrier’s SIM Card
– Borrow a different carrier’s SIM card.
– Power off your phone and switch another SIM card.
– Turn the phone back on and try to make a call.
– If you are unable to make the call and you’re certain that your phone is locked.

Case 2 : After switching New SIM Card

In order to find out if your phone is locked, be sure to follow these steps:
– Turn off the phone.
– Remove the existing SIM Card.
– Insert an activated new SIM Card from any other network.
– After following the above three steps if your phone requests for:

In case of android phone,
– “Unlock PIN Code , or >> (Enter network unlock code)”
– “SIM Network Unlock PIN Code”,
it means that your new Korea SIM card is not accepted and your phone is locked.
koreasim-sim-not-working-05

In case of iphone,
– “SIM not supported” or “SIM Not Valid ”
The SIM card that you currently have installed in this iPhone is from a service provider that is not supported under the activation policy that is currency assigned by the activation server. This is not a hardware issue with the iPhone. Please insert another SIM card from a supported service provider or request that this iPhone be unlocked by your service provider. Please contact Apple for more information.

koreasim-sim-not-working-06

it means that your new Korea SIM card is not accepted and your phone is locked.

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