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The Nextion response abnormally after upload program

I was try out the newly bought nextion NX2432T043. I have tried to upload the compiled demo program into Nextion. Then right after restart, The LCD is continue to blinking and the MCU is continuously sending 

0x08 0xff 0xff 0xff 0xff 

0x00 0x00 0x00 0xff 0xff 0xff

I have tried to upload the program again using SD. But, it seems only able to stop the MCU from send data but the program is not uploaded and the lcd is continuously to blinking.

what should i do now?

Does your supply have enough current?

1 person likes this

Please DO SUPPLY ENOUGH POWER to Nextion. 

Otherwise, it will be damaged easily under insufficient power supply condition. 

Thanks. I believe my USB to UART converter is failed to supply enough current. 

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