Hi msfujino, I got it solved after buying a clone of ST-link v2 and connecting 3.3V supply from wio e5 to st-link v2. Then changed mode to connect under reset and connected accordingly and was able to flash the Lorawan end node hex file onto the board. Also got the deveui, appeui, dev addr in my arduino serial monitor at 115200 baud rate, everything’s fine now. Thanks for trying to help.