Replace the SIM cover and secure with the SIM door screws.
Important
The SIM door must be in place before you attempt to power on the IBR600C. The IBR600C will not power on with the SIM door removed.
Replace the SIM cover and secure with the SIM door screws.
The SIM door must be in place before you attempt to power on the IBR600C. The IBR600C will not power on with the SIM door removed.