Samsung Galaxy gt-i9515 Power Button Jumper/Ways

Hi everyone

I have Samsung Galaxy gt-i9515 that took a hit recently and the power button no longer work, I tried replacing it 5 times non of the buttons work despite that the traces on PCB look fine, and despite testing the button Along with a multi-meter,

I could stat the phone using a USB cable in download mode then restart and it works fine but I want a working power button Please to be helped!