I was given an HP Pavilion 15 laptop that was believed to be in need of a hard drive. I installed a drive I had on hand, but, afterward, the PC would not power on (it did before it was taken apart for the replacement). It did not take long to figure out that the cable connecting the power button to the board had gotten ripped in the process. As I am not comfortable with soldering, I purchased a replacement power button (HP DA0U83PB6E0) and installed it. However, the machine still appears to have no power. The light on the power button does not come on. There is no sound. I have tried hooking it up to the charger just in case, but without success. No light comes on when charger is connected.
As stated previously, it powered on before the hard drive was installed (and the power button cable was ripped), so I am presuming the motherboard itself is still good. Are there any other parts / disconnected cables (aside from the battery and power button) that could cause this behavior, or did I possibly make a mistake during my install of the power button? What steps might I perform to troubleshoot the issue?