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I am not good at English.
I'm sorry.

I'm using TinkerBoard2S.
The OS uses Android 11.
I use the mraa library to read the Uart value.
But sometimes this error appears.

JNI DETECTED ERROR IN APPLICATION: input is not valid Modified UTF-8: illegal continuation byte 0xf0(The value after byte changes every time)

Even if I try to modify the mraa library, I cannot modify it because it is read-only.
Can't I handle the value that is not converted to utf8 from TinkerBoard2S?

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hello @TreeCat

did you enable uart? it can be enabled by editing /boot/config.txt

what are the test steps and how did you read the values? perhaps we can try to reproduce the issue on our side

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