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I can't start my Doro 6520 Proprietary OS
Cause 1 of 6: Your SIM has been blocked permanently
If your SIM has been permanently blocked, you'll need a new SIM.
Solution: Contact customer services to have a new SIM sent to you.
If your SIM has been permanently blocked, you'll need a new SIM.
Solution: Contact customer services to have a new SIM sent to you.
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