Install Yeastar P520
Install SIM card
Note: Before installing the SIM card, make sure GSM/3G/4G LTE
module is inserted on Slot_1.
- Loosen the screws on the bottom of the device.
- Remove the upper cover.
- Follow the instructions to insert a SIM card on the GSM/3G/4G LTE module and
then insert the module to the Module Slot.
- Close the cover and fix the screws.
- Rotate the antenna into the Antenna Socket.