Marantec Digital 304/302 868.3MHz

Programming process:
Step 1: Clear code the new remote.
1, Press and hold the A+B buttons on the remote control at the same time.
2, LED blinks 3 times, then release the B button and press the B button 3 more times (A button stays pressed).LED blinks fast, release the A button.
3, Check: Press and hold any button, LED blinks 2 times then goes out, clear code successfully. Otherwise, clear code failed, please re-clear the code.
Step 2: Cloning.
1, Place the old and new remotes as close together as possible.
2, press and hold the button on the old remote control that needs to be cloned and then press and hold the button on the new remote control.
3, The LED on the new remote control blinks 2 times and then keeps blinking steadily. Button 1 cloned successfully.
4, Continue to clone other buttons (no need to clear the code).