Game Input MultipleXer

http://www.switch-science.com/catalog/865/

I do not understand the detailed thing, but the firmware renews it in Filp

According to the design (http://doc.switch-science.com/schematic/32u4-bb.pdf) the atmega PD2/RX and PD3/TX pins are respectively D0 and D1 pins.

This is contradictory with the fact that it worked with GIMX 1.02, because it needed the PD2/RX pin to be correctly wired.

If you have an ohmmeter, you should try to check what pins of the board correspond to PD2 and PD3. You can locate PD2 and PD3 thanks to the datasheet (page 3).

I measured it in a tester

The result
TX=D3 RX=D2

I confirmed the conduction

I didn't see it first, but you probably typed a wrong command:

http://kie.nu/1rXM

You should have replaced "COM12" and "PS3_FarCry3.xml" with your own values.

I changed COM to 12 and input a command
http://kie.nu/1s9K

What should I do?

The message "Detected USB adapter: none." means that the serial connection timed out (nothing was received within 1 second).

What are the voltages between GND and D2, and between GND and D3?

D3=3.0v D2=2.7v

What is the voltage between GND and VCC? (on the atmega32u4 board)

GND-VCC=2.14v

I think the atmega32u4 board is defective: the power supply should be 5V.
The fact it is much lower than 5V explains why the data cannot be transmitted from the atmega32u4 to the serial adapter.