Ersky9x with Smartie Parts board in installed. I tried updating firmware, and lost ability to set failsafe in system, it also appears as though the sound in my radio has also disappeared. Radio used to report a loss of telemetry communication. DJT with D8R-xp on board. After updating TX and RX, tried to re flash and cannot re flash with either 18, or 27 ms firmware. Sure hope someone can help with my question.