[SOLVED]A1278 820-2530 can not see hard drive

[razorwoods]

I've got a 2009 820-2530 A1278 MBP that doesn't see the hard drive. Normally when these come in and the hard drive is still good it's the 821-0814 interconnect cable that's gone bad. This is the first one I've seen where the drive is good and the interconnect cable is good but the system still doesn't see the hard drive. Can anyone point me in the right direction ?

 

[dukefawks]

HDD spinning up? If yes check for damaged FL4501/02, C4510,11,15,16.

 

[razorwoods]

FL4502 was dead on 3-4 , replaced and now system sees the drive again. Thank you for the quick help on this one.