Hello rezapb, take out the batteries, open up the robot check all the wires. search for rsv2 wire insulation pronlem.
Welcome to the forum
Freddy

Hi

I am not an expert so don't expect a technical answer. It seems to me that you have entered a diagnostic mode that requires some input from you and it may be that the computer chip will not reset itself untill you have run through the routine. The reason why I say this is that my robosapien V1 has two secret diagnostic modes and to run through these you have to press his various sensors ,move his arms up , out ,down etc only when you have run through the routine will the robot respond with a diagnostic completed message. Also shift 1 D suggests a diagnostic command .It might be worth contacting WOWWEE customer support(I hope you have better luck than me). Alternatively, try asking your question on WWW.iirobotics.com. or I would definately check if Jamie Samans has written a book on the ROBOSAPIEN V2. He wrote a brilliant and invaluable book called the Robosapien companion, which covers every aspect of the ROBOSAPIEN V1 from developement history through programing to diagnostic,dismantling,and modification. So if he has done one on the V2 BUY IT !!!. My final note is this, according to Mark Tilden the inventor and developer of these robots they were made to be very robust. Therefore I doubt wether the machine falling over backwards unless over a balcony would damage itself or loosen any wires. Good luck and I hope that you resolve your problem.

Kind regards wireless puppet