I don't know what damage this bluetooth AZERTY KYBD that was given to me had (probably liquid), but the : WXCVBN, and left command keys were not working. Hung it out to dry, punched a little harder on these lower keys, and, especially, '''carefully cleaned the flatcable at the receptor end with isopropanol (IPA). '''bold text'' Lo and behold, coming to you from this KYBD! Good luck to you! Hammer away, I'dsay.
Sorry for my late post, but I've come across this in the course of other research. Someone asked me the exact same question about the exact same component some days ago, but with a better picture. If I'm not mistaken, this component is identified on the silk screen as "J6", being "jumper # 6". Indeed it seems to be a simple wire bridge with a ferrite core meant as RFI screening. Measure its resistance, on- or off-circuit: it will measure about 0 Ohms in both directions. Definitely not a diode. What the leaking white putty is, I don't know, however. Not the cause of a malfunctioning PSU in my book...
As a rule with iFixit repairs, for years I've been printing the guides, applying scotch magic tape near each picture (which allows me to reutilise the paper prints in the future), neatly putting the appropriate screw next to their picture and taping them down with scotch magic tape.
Even if I have to wait for spare parts, this allows me to neatly file the guide + screws in a copy safe and a binder (or in a cardboard filing box together with the rest of the parts) for later reassembly. Hardly any mistake possible...
With all due respect, step # 19 and 20 pics shows the ZIF socket on the trackpad board, not the Mac logic board, I think...
See step #17 which seems to be correct. There is an inconsistency in the guide.
Just to be sure...
As a rule with iFixit repairs, for years I've been printing the guides, applying scotch magic tape near each picture (which allows me to reutilise the paper prints in the future), neatly putting the appropriate screw next to their picture and taping them down with scotch magic tape.
Even if I have to wait for spare parts, this allows me to neatly file the guide + screws in a copy safe and a binder (or in a cardboard filing box together with the rest of the parts) for later reassembly. Hardly any mistake possible...