Problems with radio in micro:bit

[t-789]

Hello!

Recently, I develop two program on micro:bit. One using MakeCode, one use Mind+. I want to use micro:bit's built-in radio to make two device communicate. I wrote a simple program to test it. Under ideal condition, I'll get the uuid of a nfc card, But I get messy code instead. I tried many ways, wanted MakeCode's device get the message, but it can't work. Can you tell me how to do it in the right way?

This is MakeCode code.

This is Mind+ code.