A teacher is trying to update her activ-g and encountered the following problem-
I began do updates to the OPS on my Promethean Board. After a couple of updates, it has been frozen, even after shutting off the board, unplugging and everything. It is saying there is no SIM card. I am not sure if this is the reason for the issue, but I was able to access it previously and did not change any settings or take out a sim card.