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A1237(original and 2008) uses 40-pin ZIF cable, and internally E-IDE signal.
A1304(2009) uses 24-pin LIF cable, and internally S-ATA signal.
It’s not only different cable, but also different disk drive. If you bought one, you physically cannot uses on otherwise.
Sorry to resurrect ancient question, but this might be helpful if someone trying in the furute.
Siht. I screw up the screw too. And then I realize there are 24 comments in this step. Now I make 25 of it. That little fcuking 3.9mm...
Anyway, so I drilled that striped screw head with 3mm tip, totally striped that screw so seperated rim, removed Airport supports, there still 1mm of screw steam thingy, got rid of that using small nipper, put new screw in.
Use very, I mean very sharp even your finger bleed when touch the edge of small screw driver. Regular #0 or #00 driver will distroy your screw head.
Just in case anybody doing resurrection these old things.
As post upside mensioned, there are difference HDD thingy between Early 2008(A1237) and Late 2008 + Mid 2009(both A1304). 1st gen A1237 uses 40pin ZIF connector and internal PATA(=E-IDE) protocol. 2nd gen A1304 uses 24pin LIF connector and internal SATA protocol. They don't compatible each other both cable and disk.
If you want to replace 1g A1237 HDD, you can just buy 1.8" 40pin ZIF HDD and replace it. No problem.
But if you try to replace 2g A1304 HDD, There is no way to buy 24pin LIF connector used HDD or SSD (with proper price, at least). And that's because LIF24 is specific design for some Apple devices. But LIF24 internally uses standard SATA pins. So you can jump from the LIF24 cable's pin header. It provides 3.3v, GND, SATA data A+, A-, B-, B+. If you going to use mSATA SSD or 1.8" SATA SSD, it just uses 3.3v only so jump LIF24 to mSATA should works. By any chance it needs 5v, there's always 5v in USB.
Beware different HDD using between Early 2008(A1237) and Late 2008 + Mid 2009(both A1304). 1st gen A1237 uses 40pin ZIF connector and internal PATA(=E-IDE) protocol. 2nd gen A1304 uses 24pin LIF connector and internal SATA protocol. They don't compatible each other both cable and disk.
Besides, LIF 24 is specific design for some Apple devices, so you barely can find compatible disks. But it uses SATA protocol so you can directly jump the SATA data (and power) pin from the original LIF 24 ribbon cable to any SATA HDD or SSD, that fits MacBook Air disk slot.
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