1697 center button "power" problem

[spitaleet]

Hello there!
Today iam working on a 1697 pcb with the follow problem: all buttons works perfectly, but, if a press the "center button! (big X ) its remain pressed forever.
 
I am testing with only the boards off, jumper with a  tweezers.
The button have 2.2v and gnd in the respectives pads, remain the same after press...

I see the problem in this test site (https://html5gamepad.com) , B16 remain 1.0 afer a press!

I replace the  MCU BOARD and same problem happens.

I replace  Q8,Q3, checked D27, R27 and R24.

I see a little oxidation in the U4 (thats scary me), on C45 side.

Any tips?!

[RDC]

Q3 only turns the LED on/off.

There is no U4 or C45 on the Button/Power board of the 1697 or 1698, you must have a 1708?

That HTML5 Tester doesn't even register my Guide button press, but it shows it's working on a Cronus Pro, so I'd wonder if it's the tester hat has the issue. Try it on something else and see how it acts.

[spitaleet]

Q3 only turns the LED on/off.

There is no U4 or C45 on the Button/Power board of the 1697 or 1698, you must have a 1708?

That HTML5 Tester doesn't even register my Guide button press, but it shows it's working on a Cronus Pro, so I'd wonder if it's the tester hat has the issue. Try it on something else and see how it acts.

You hit!

*Yes, my bad, model 1708.

*I dont know why but HTML5 bug with this controller ( i try another and dont have the same issue).

*The problem related is: only analogs works, and when a put in HTML5 deduce the guide button always pressed is the problem, after all, i plug the controller in the xbox one and work perfectly... (probably the initial problem is a temporally bug? or sync problem? never know)

But, you arrange the mess in my head!

Very ty man.