Is this the correct motherboard for my Creality CR-10S Pro V2? When trying to solve the issue described in this post I followed the advice in the accepted answer and I found that the timing pulley holes for the Y axis (to &quot;secure&quot; the pulley to the motor shaft) were only half drilled (!!!). I suppose that everything worked fine (even without blind screws) for the first month (probably because the belt was extremely tight) but just a bit of wearing and it started to slip.
While I already replaced the pulley I also contacted the Creality technical support to obtain (at lest! funny...) a reassurance that it didn't possibly stressed the belt or the bearing balls. My experience with their technical support has been horrible and I am still waiting (after weeks) my answer (probably it's easier for them to try to ignore their sloppy assembly and QA) but they sent me a procedure to follow to &quot;debug&quot; any issue with my printer.
One of the pictures in that procedure is this:

To my surprise this is the motherboard I have:

Now I am puzzled. Which one is the correct motherboard for the Creality CR-10S Pro V2 (not the old version but the newer V2)?
Is this just [another] sloppy mistake from the technical support or I do have the wrong motherboard? Differences with V1 are not many then I suppose it could even work with the old one...
The board that's installed in your machine appears to be the Creality v2.4 / v2.4.1 board, which is the correct board for your printer.
It is distinguishable by the 30-pin ribbon connector, which is used to connect to the rest of the printer.
The board in the tech support pictures is the v2.5.2 &quot;silent board&quot;, designed for printers such as the non-Pro CR-10 series. It features two 10-pin connectors for the LCD screen.
It also uses individual connectors for all functions, so, contrary to the &quot;Pro&quot; boards, is also easily swappable with aftermarket boards.
A third type of board (e.g. v1.1.5) exists, mostly for the Ender 3 series of printers, which features only one 10-pin connector for the display.