# Dynamixels (AX-12A) no longer detected after id change

I have 8 dynamixels that are connected together. Everything worked fine until I changed all their ids to 200,201,202, ... To change their ids, I used this python library. Now, none of my motors are detected. I tried testing one motor at a time and I have the same results for all motors.

I tried running factory_reset.py from DynamixelSDK and the script returned:

Succeeded to open the port

Succeeded to change the baudrate Now the controller baudrate is : 1000000

[ID:001] Try factoryreset :

Aborted

[TxRxResult] There is no status packet!

Any idea why I have this error, and how I can fix this? Thank you.

• you did not say how you changed the IDs – jsotola Dec 29 '19 at 22:31