Hi, I just managed to backup firmware using BK7231 Easy UART flasher. I connected TX, RX, 3.3V, and GND to CP2102 USB bridge.
In attachment, 2MB dump.
Also, it showed an error as the device seems not in the list.
After a successful dump, it seems I got a problem: Whenever I connect both 3.3V and GND, the bridge USB interface resets as there seems to be a short circuit between the two lanes. In particular, I can measure 2kOhm between 3.3V and GND, and 8kOhm between 5.0V and GND. Not sure if these values are normal, but this prevents me from going on trying to flash OpenBeken firmware.
Edit: After a number of attempts, I got UART working again and flashed OpenBeken firmware successfully. Now I'm going to struggle with the configuration/template to have IR working.
I tried to send a command as I receive and nothing happens on devices. Tested an LED strip ON/OFF button (received Info:IR:IR IR_NEC 0xEF00 0x3 1) and an LG Soundbar vol+ button (Info:IR:IR IR_SamsungLG 0x2C2C 0x17 1). Sending Console command "IRSend IR_SamsungLG-2C2C-17-1" results in "ok" in the console but no effect. Am I missing something?