Hi there. I have 2 XB2B WF modules S6B. One, with the antenna has stuck and doesn't response. I tried to reprogramm it and nothing works. Module is alive and reprogramming is proceed but in end all settings set to last that i programmed. How do i know that? I programmed DIO 11 and 12 as PWM0 and 1 outputs and indicator LEDs on DEV board turns on again. Tried to reset, all available solutions in documentations, but nothing. Need help. Sorry for mistakes, don't know english well.