MBP 2019 13" 4x thunderbolt 3 ports (electrical ESC button)

a novice right here. I bought a PC restore equipment to open my titlure MBP machine to scrub underneath the trackpad. After success I closed it, every thing working nornal.

Discovered a lacking washer, opened once more to place again, and in reconnection of energy cable the tiny black plastic bit to lock it down snapped out, nonetheless bought the cable all the way in which in. In any other case, every thing effective.

However MBP will not work with out recharge wire plugged in and the battery does not register. Is that little black lock down piece on the ability cable logic board reciever actually the problem?
MBP now over clocks the followers and nothing takes lower than a minutes to proceed or resolve a perform. Battery does not register and can’t be situated by system.

Can this be fastened or am I taking a look at a brand new machine??