We want your device to be up and running perfectly at all times. I certainly understand your frustration with the sim card locking multiple times per day. Let's get this fixed. As Ann154 has suggested, what is the make and model of your device? When did this issue start?
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If my response answered your question please click the "Correct Answer" button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!