Thanks for the pictures. They were very helpful.
The problem is with the jumpers. Please pay close attention to the instructions and pictures of the jumpers in the assembly manual.
You are supposed to only connect the 2 tiny pads together on each left and right side, but you have connected all 4 pads together with a wire. Please remove the wire you installed on both the high and low signal paths.
That will probably fix the no tremolo issue.
Good luck.
-Brach