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Your mobile phone is SIM locked to Swisscom

Possible cause 8 of 10:

If your mobile phone is SIM locked to Swisscom and you try to use a SIM card from another service provider, the display will tell you that your SIM card is invalid.


To use a SIM card from another service provider, you'll need to unlock your mobile phone. To unlock your mobile phone, certain conditions need to be met, this may not be free of charge.


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