A SIM Card is required to make calls and transfer data over a cellular network with the TC27.
Only use a nano SIM card.
For proper electrostatic discharge (ESD) precautions to avoid damaging the SIM card. Proper ESD precautions include, but not limited to, working on an ESD mat and ensuring that the user is properly grounded.
Pull the card holder out of the device.
Flip the card holder over.
Place the SIM card end, with contacts facing up, into the card holder.
Rotate the SIM card down.
Press the SIM card down into the card holder and ensure that it seats properly.
Flip the card holder over and re-install the card holder.
