RAK11720 Won't accept new bootloader or firmware

WisBlock
1

System config:
Arduino IDE + RUI3
Windows 11
CH340G usb to serial module for the RAK11720

I made an error and forgot to add a delay for me to be able to send AT commands to reprogram my RAK11720. Followed the youtube guide posted by the staff for the recovery procedure. Keep getting a 0x00000 no response from the module error when trying to reflash or it sometimes just replies with the faulty program code would appreciate any help!

2

Welcome to RAK forum @Sanki ,

The UART bootloader of Ambiq was there to have a UART based recovery. In my personal experience, it works but not really stable. Guide is here.

If it doesn’t work in your setup, you will need Jlink to recovery your RAK11720.