My iPhone has a wierd issue.

During my housing replacement for the iPhone X, I would have a wierd issue when I connect my wifi antenna to the motherboard, my iphone flashlight won't work, but when I disconnected the wifi antenna(by loosen the tri-wing screw of the iphone shield) , the flashlight would work again but at the cost of a poor range of the WiFi and Bluetooth.

PS: the power button still works though, but my flashlight isnt working.

Can someone explain me what I did do wrong during the repair, thank you very much.