- Usually, willingness to open the device
- getting a full boot text from the serial port
- this usually shows things like the current partition layout, what sector of the flash (in Hex) that the Kernel is booting from, etc.
- Images/info on the model number of the -
- CPU (and its speed, architecture, etc.)
- WiFi Chip(s) (make and model)
- Memory (and its size)
- Switch chip (if any)
- USB chip (if any)
- etc.
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