How to recover USB communication with HTCC-AB01 board

#1

Hello,
I was trying to connect HTCC-AB01 with Raspberry Pi via serial interface (using USB), and uploaded some sketch which probable disabled access to the board, so the port selection isn’t possible now and the board can’t be recognized from Arduino ID any more.
How can I make factory reset and recover the control from Arduino IDE over the board?
Br
NenSak

#2

You should have lost the bootloader and can only use the official ASR development tools for development.

#3

Thanks,
it means I can’t do anything on my own?!
regards

#4

Yes, it is recommended to buy the ESP32 series, even if you accidentally erase the FLASH, you can download it again.

#5

thank you! It’s good to know.
The point is that device is not broken, just left in dead loop I think.
br