@watson Hello Watson, I did all you asked and it still doesn't work..

The COM port is open and selected. When I try the hello world sketch I get the following error:

A fatal error occurred: Invalid head of packet ('5')
A fatal error occurred: Invalid head of packet ('5')

Thanks for any help.

@watson Hello Watson, I am using a MacOS machine. And idea why I am getting those errors? I get them even when I plug it in to an external battery. Do I have a bad one?

@ikapoc Were you able to resolve this problem? I have a brand new on I got from Amazon and I have the same issue.
MPU9250 ERROR
AK8963 ERROR
WiFi RSSI OK
SDCARD OK
ADC34:0800
ADC35: 0018(fluctucates)
ADC34: 0000

I am not able to upload any sketches to the device using my Arduino IDE. I am new to all of this.