I got an uArm metal a couple of days before. It worked fine at the beginning with the uArm client. Then i tried to upload the Calibration firmware to uArm by Arduino IDE. The upload seems good, but the uArm doesn’t work after I uploaded the firmware. It no longer moves. Then I tried to uploaded the standard firmware from this link : https://github.com/uArm-Developer/FirmataEEPROM/releases. The upload seems fine. The serial port seems fine too, because i saw the LED blinking when i manipulate the arm by uArm client, but the arm doesn’t move at all.
Now i am really confused that is my uArm broken?
How can I reset it to the out-of-box status? Is the initial calibration necessary?