12-25-2011 02:23:15 PM
my son got a new ipad for xmas. when he activated it, it asked if he had a current account, he said yes, now his Dad is trying to activate the old ipad and it said SIM is invalid, please use a different sim. any ideas? He did not take the SIM card out
12-25-2011 04:14:57 PM
Same exact thing happened to me when I went to activate Cellular Data on my wifes new ipad and chose existing account and logged in .... now mine says "SIM is invalid. Please use a different SIM".