This is a used, junk item. I have disassembled it before, but I haven't messed with the circuit board. I only used contact cleaner spray and cleaned it. I haven't done any soldering. Normal operation is possible, but the left analog stick is slightly unstable, especially upwards. Please understand this and purchase with no claims and no returns. Navy wireless controller, touch pad equipped, PS4 compatible - Color: Navy - Type: Wireless controller - Compatibility: PlayStation 4 - Features: Touchpad equipped - Button layout: D-pad, analog sticks, action buttons Contents for shipping: Controller body only No cable No box Lots of cushioning material Thank you for viewing.