I am using 661_09gg.Q2686H 1925236 100506 11:13 core firmware, and I can’t tell how it happened, but the module went into a weird state:
After turning on / reset I am able to send one (exactly one!) AT command from the PC over UART 1. And only if it is sent quickly without delay between characters. If I type in, the module will only echo the first character and then no more.
If I turn off and on again, and then do a AT+WOPEN=1, the application will run, but also I will only be able to input one command to the application. But the application continues to run without problems - excecpt that there is no inbound UART 1 communication possible!
Did anybody also experience this problem, or is it just me? How can I fix this (don’t tell me to reflash the core firmware - I know that will do it… but it would be only possible by removing the module from the device which I prefer not to do many times…)