Nokia 20 用户手册

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• Light indicators 1 and 2 are not in use.

• Light indicators 3, 4 and 5 indicate the state of the terminal. Refer to 

Table 1.

Table 1. Nokia 20 light indicators

-

-

-

Power is off.

Blinking

-

-

Power is on. The terminal is attempting to connect to the 
telephone network.

On

-

-

In  service.

On

-

On

Call in progress.

On

Blinking

-

There is an incoming call.

-

Blinking

-

Enter the PIN code.

Blinking

Blinking

-

Enter the PUK code.

On

On

On

The terminal has received an SMS message or voice mail.