After back housing replacement, no vibration or home button.

I replaced the back housing, aswell as the screen on my iPhone 7. Once I put it all together, the connector that connects the charger flex cable and taptic motor flex cable to the motherboard was hard to put in, so I forced it in. Upon turning on, the home button does not work, however I know I did not damage my button or the flex cable so I checked the vibration. It does not work, so I assume that's why my home button doesn't work. Given then I forced the flex cable connector into the motherboard, and it does not click in well, I buy a new one and proceed to install it, this time perfectly with no complications. Vibration and home button still do not work. The connection on the motherboard itself seems to be perfectly fine, no damage. What could possibly be the issue?