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Sim card
With an AT&T galaxy s6 edge and have a t-mobile sim but it's coming up invalid sim card network locked sim card lock what does this mean
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ATTHelp
Community Support
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231.5K Messages
7 years ago
Hello @Nicole198306,
Excellent question! It will be my pleasure to help answer it!
When a phone displays a network lock error message, this means it is locked to the original carrier’s network. This means the phone can only be used on the network it was used on originally. In order to use it with another carrier, you will want to unlock your device. For AT&T devices, you can visit our Device Unlock Page and follow the on-screen instructions to submit the request.
I hope this helps!
Brett, AT&T Community Specialist
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