If you want to build your own thermal image camera you can do that on the cheap, you don't even need a raspberry Pi, just buy a GY-MCU90640 (double check that it has two lines of pins, the mportan ones are the RX and the TX pins) because that camera uses a serial port to transfer the information, and you can read it with a standard usb to ttl. It's very cheap and you can use it for basic tasks, I use to find shorts on electronics repairs

You have to use that python script and change the line to use usbTTY0 instead of serial0

https://github.com/vvkuryshev/GY-MCU90640-RPI-Python

Flashing the BIOS of computers that boot, but don't post, using a Bios flasher (ch341), has transform of something very rare to something quite common.

With very good results to resuscitate dead computers

If you order in aliexpress a thermal camera MLX90640 and you can't make it work with a raspberry pi, check that is not a GY-MLX90640.
For that you can use the serial port instead of the I2C port.
All the code and info is here:

https://github.com/vvkuryshev/GY-MCU90640-RPI-Python