3.3V and GND permanently shorted on opencr

How to fix opencr short circuit on 3.3V and gnd pin. The MCU very hot when opencr connect with usb

Opencr can’t be used

ROBOTIS does not recommend user repair or service of OpenCR hardware, but if you would like to repair your board yourself the PCB documentation is available on the OpenCR GitHub repository.

If you would like your hardware repaired by ROBOTIS, you can submit an RMA request to your region’s ROBOTIS retailer.

When submitting your items for RMA service please be advised: in the event that the units are not covered under warranty you will be responsible for the cost of shipping + repairs (labor/components) before ROBOTIS may return the RMA units.

To proceed with RMA service fill out the the appropriate form from the list above to open a request with your region’s RMA team. In addition, you may find the troubleshooting self-checklist useful to assist in filling out the RMA request form.