Simxperience Button-Box HUB DISASSEMBLY (With Steering Wheel already Removed)

Click the pictures for a larger version.

TOOLS REQUIRED 

 
STEP 1 - Remove 3x 4mm Hex Screws - this will detach the locking hub

STEP 2 - Flip the button box carefully and disconnect the connector by squeezing it at the long edges.

STEP 3 - Remove the 7x T-10 Torx Screws (You can use a 2mm hex as a stop-gap option if you do not have a T-10 torx tool.  Be careful and do not over-tighten as it will strip the torx screw head)

 STEP 4 Remove the plastic backing cover

STEP 5 - Interchange the buttons.  

In the green circles are the button connectors on the PCB.  Each button has two wires - the red wire on each button connects to the top pin in the picture shown, and the black wire goes to the bottom pin.  

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You can trace the button wires back to each button.  The wire and connector and pins below show the UPSHIFT PADDLE button.

If you wanted to, you could swap this with another button and re-map it in your game.