I am trying to activate a first gen iPad with WiFi and 3G. When I go to Settings, Cellular Data, and View Account to activate the iPad, I get an error message that says, "SIM is Invalid. Pleae use a different SIM."
There is a SIM PIN option, and when I click that it asks for the PIN. I don't have a PW for the SIM (the iPad was a slightly used gift, and none of the paperwork came with the iPad).
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