The Flir One Pro for Android can be opened by removing the two T5 Torx screws, accessible after the rubber corner bumpers are pulled out. Then remove the two Philips screws holding the USB connector backing plate and lift off the plastic cover over the camera (release a couple of plastic clips). The battery connector can be removed by lifting up the edge opposite to the wires. The battery has 3 wires so it may not be easy to find a replacement.
There are actually 4 screws holding the hubcap on. To get to the 4th screw, you need to loosen the top cover by removing all its screws. Note different lengths of screws.
I 've found this repair to be very difficult if one wants to remove the digitizer and frame together as one piece undamaged. Some of the metal clips are very difficult to disengage for some reason, making it difficult to pry the frame out. In addition, many replacement digitizers are not strongly bonded to their frames (Apple uses a special adhesive?) and lift off over time.