blueray

I recently changed the thermal paste and somehow messed up the ribbon cable for the Blue ray drive. I ordered a new one and tried it out, however the PS3 will not power on (no red light) when the blue ray drive is connected. When I remove the ribbon connecting to the Blueray drive it powers on...

I had to buy a new BD and I'm trying to remarry it on a FAT CECHK01 with firmware 4.87. The connector on the old daughterboard broke so I can't use it and install it on the new BD drive. OFW is 4.87 so The only CFW I can get on it is 4.87.2 Evilnat Cobra. All the others say file corrupted when...