Chosen Solution
My 13” Early 2015 MacBook Air stopped working. Not charging either. The symptom- it’ll turn on just fine when plugged in- and the io ribbon is disconnected. Once connected- the screen shuts off. The battery is also disconnected. I’ve tried several power supplies, I replaced the io board, the ribbon, cleaned a bit of corrosion from the bottom of the Logic board using deoxit, still nothing works.
I would replace both the I/O board and its cable. You likely have a sort in the board. This board has the audio DAC (Cirrus chip) MacBook Air 13" (Mid 2013-2017) I/O BoardMacBook Air 13" (Mid 2013-2017) I/O Board Cable Following this guide MacBook Air 13" Early 2015 I/O Board Replacement
