This is factory (not patched) removable display firmware version 102.73. Note that you can only see the leading "1" from monitoring firmware; from the front display, it looks like U2 02 73.
WARNING: Only use this if your existing display firmware version starts with a "1"; I suspect that the leading "1" is important, and indicates a difference in display hardware.
Ignoring the above may result in BRICKING YOUR display, which will necessitate getting a new one. Apart from the expense, delay, and hassle, it will be difficult to obtain the exact right display model, as they are many with subtle differences.
This firmware release has a rare factory release note: "More increasing the reliability of communication of Pylontech version "C" Li batteries with the display and VM III / KING converters".
This removable display firmware is ONLY for the Axpert King or the Axpert VM III, though these are known by different names by different resellers.