Hi @Online_Manager ,
With regards to your posted question, would you mind to take a picture of the back shield of your AMB82-mini and share with us the purchase source for the board? Is there any debugging logs that you could provide so that we can assist you further?
You may also try to perform erase flash and upload your code again.
Setup docs: Ameba ARDUINO with AMB82-mini (RTL8735B) — Ameba Arduino AIoT Documentation v1.1 documentation
Thank you.