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Configuration
Mobile network type LEDs
The mobile network type LEDs are located near the SIM card slot.
They display which type of Internet connection is currently active.
Action
3G LED turned on
4G LED turned on
3G blinking
4G blinking
All LEDs blinking at the same time
every 500 ms
All LEDs turn on and off in a
sequence one after the other
Mobile signal strength indication LEDs
The mobile signal strength indication LEDs are located near the SIM card slot.
The number of lit up LEDs represents a different mobile signal strength (RSSI) value in dBm.
No. Of Lit Up LEDs
0
1
2
3
ALD-16690
Description
Device is connected to a 3G network.
Device is connected to a 4G network.
Device is connected to a 3G network but hasn't received an IP address.
Device is connected to a 4G network but hasn't received an IP address.
No SIM card or incorrect PIN.
The device is attempting to connect to a mobile network operator.
Signal Strength Value
≤ -111 dBm
-110 dBm to -82 dBm
-81 dBm to -52 dBm
≥ -51 dBm
159
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