It looks like you're referencing an article or firmware update related to and using the phrase "extra quality" — possibly in the context of a firmware mod, patch, or custom release.
Insert the USB into the board, plug in the power, and watch the LED light flash until it stops. rr52c03a firmware extra quality
Even extra quality firmware can encounter environmental issues. Here is a troubleshooting quick reference: It looks like you're referencing an article or