MacBook won't sleep when lid is down

izuzf92

Commendable
Jan 1, 2017
1
0
1,510
Recently I changed the thermal paste on my MacBook. This did require me to remove the logic board. The process went well and the MacBook is now cooling properly.
One problem though, the MacBook won't sleep when I put the lid down. I've resettled the smc and pram without success.
Any ideas?

MacBook late 2011, a1278