Zte MF286R Manual page 6

Indicator
3G/4G
SIG
NOTE:
The phone function needs the network support.
State
Red
Blue Blinking
Blue Solid
Green Blinking
Green Solid
Blue on
Off
4
Description
The device is turned on but not
registered to the mobile network.
No (U)SIM card is inserted or
there is no network service
available.
The device is connected to the
LTE network and data is being
transferred.
The device is registered to the
LTE network.
The device is connected to the
2G/3G network and data is being
transferred.
The device is registered to the
2G/3G network.
Signal level panel. Strength is
from weak to strong.
There is no signal or no (U)SIM
card is inserted.