Can't upload the default flight controller

[zldzksk1]

Hello guys,

I am having a trouble to upload the default flight controller. Whenever I tried uploading, I got this error msg:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x57

I checked the Bluetooth chip is flashing red light, but if I click upload, it turn into yellow-ish green color, and I got the error msg.

Anyone can help me with this?

[robolink_leila]

@zldzksk1
Please verify the following:

• A valid port has been selected (If on Windows, it cannot be COM1) under Tools>Port
• The Rokit SmartInventor Board V2 is selected under Tools>Board
• You are using the USB cable that came with the kit (or any other data USB that is not charge-only)
• Dip switch 1 is up while switches 2 and 3 are down (This is upload mode)

If you have any questions about what these mean let me know!