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SD Card
Nano SIM card slot
LCD 40-pin FPC
socket
Re-chargeable
battery 2-pin JST
connector
LTE/MCU
switch
GPIO/I2C/SPI/
3.3V/5V pins
Figure 5. NB-IoT Phone Bottom Side – Key Components
NB-IoT Phone 1.0
SWD
USB Micro-B
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On-board and UFL
LTE antenna
On-board and UFL
GNSS antenna
NB-IoT & GNSS
modem (BG96)
USB Boot
MCU
(SAMD21G18A)
MCU RESET
button
Re-chargeable battery LEDs
D7:CHARGING
D8:DONE
Modem LEDs
NET & STATUS
11
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