I’d like to find out about warranty exchange. At first, I thought the problem was the radio(s) but hours of testing indicate they’re both fine and it’s one of the f9p’s that’s dying.
We are sorry to hear that. You can send us an e-mail to firstname.lastname@example.org with a larger description and pictures of the boards, so we can send you the return instructions.
If the board is defective we will replace it. If the board was damaged / it was misconfigured, we will charge you for the repair cost (material + manhours + shipment).