Multibrackets 7350022733985 Dépliant
Cut off the power of motorized projection screen
Press button "DOWN" of wall receiver and go through the power. Never leave
button "DOWN" until for 5~6 seconds.
Leave button "DOWN" and press button"UP" once.
Press any key of remote control against wall receive. You will hear a sound
"KA". Congratulations, your remote control works again.
Remote & Wall Receiver