How to change AT mode to normal mode in Bluetooth module HC-05.

Hello.

I have a little problem with Bluetooth module HC-05, I can't change AT mode to normal mode in Bluetooth module HC-05. I can notice it by the LED light when connecting to the Arduino. Can anyone tell me how to solve this problem?

P.S.Since I bought it, I had already in AT mode.

tanapatC:
P.S.Since I bought it, I had already in AT mode.

Incoherent.

The normal way to get out of AT mode is by momentarily interrupting the power. When power is restored, you desist from entering AT mode.