Are your logic board and upper case not talking?
Replace a damaged upper case cable and restore function to your upper case again. This cable transmits that data from the power button, keyboard, and trackpad to your MacBook’s logic board
Note: There are two different types of cables for the MacBook. The older version uses a brown Foxconn cable and the newer version uses a silver cable. The cable must be replaced with a similar cable or your upper case will not function properly.
All 13.3″ MacBooks (excluding MacBook Unibody and MacBook Air)
Apple Part : 922-7991
Silver / Used, fully tested
Lifetime Warranty – This apple lab product is guaranteed to function as long as you have it.
# You can gate a brand new an original upper case cable from us.
# If you please want to set it in your macbook we will give you the best service.
# The cost will be finalized on “Face to Face” discussion.
# Service charge BDT 500/00.