I am using three XM430-W350 servos plus one XL430-W250-T. I unfortunately set them to 3MBaud and cannot talk to them using my Arduino Mkr plus Dynamixel Shield anymore, so I ordered an U2D2 and power board, to be able to get them to work again. However scanning does not recognize them, and I have been able to recover one using the Recovery function after many many many attempts. I think this is due to me being on Mac, which only has USB-C ports, and using Apple’s USB-C to USB-A converter.
I have also tried a Dell USB-C to USB-A converter, a USB-C hub with USB-A ports, and a USB-C to MicroUSB cable; none of these even recognize switching power on the servos on. With the Apple converter, this works and it tries to flash, but reports “Flashing failed” all the time.
I know that the servos themselves power on because the LED switches on. Sometimes it stays on during and after the flashing process. Sometimes it does not switch on when I turn the power on, but after a couple of flashing attempts this usually works.
As a power source I am using a bench power supply, with 12V (have also tried a bit higher, up to 14V).
Help?