This page instructs you on how to reset a Castle ESC to factory settings and reflash the firmware.
Resetting the ESC can help when having issues, particularly after a failed update using the B-Link.

1. Download and Install Castle Link Classic to your Windows PC.
1. https://home.castlecreations.com/download-castle-link/

 

2. Open Castle Link Classic program.
   
   
3. Connect USB cable and Castle Link adapter to PC.
   
   
4. Connect the ESC's receiver lead to the 3-pins on Castle Link adapter.
1. Brown wire goes to negative "-" symbol etched into adapter's board.
   
   
5. Castle Link will automatically detect the ESC and connect.
1. You should have 2 green USB connection status boxes in the lower left.
6. 
   
   
7. In the lower right corner, Click the "Defaults" button.
   
   Note: You will need to readjust any settings that were modified from factory settings after defaulting.
   
   
8. Click the "Software" tab at the top of the program
   
   
   
9. Select the uppermost firmware version on the Available Firmware Versions List.
1. (Numbers may vary from screenshot)
10. 
    
    
11. Click the "Update Firmware" button.
    
    
    
12. Disconnect from Castle Link and reinstall ESC's receiver lead into receiver.
    
    Note: You will need to recalibrate the ESC to your radio.