I have a 2012 13" MBP (non retina) that had water spilled on the counter that pooled around it and some seeped into the bottom (don't ask how). I have taken it apart, cleaned it with alcohol, baked it to ensure it is dry and now almost everything works.
The odd thing is that the keyboard and trackpad will work during system boot to, say, reset PRAM or boot into safe mode or select any other combination; however, when the system boots into the OS (or recovery mode, etc) the keyboard and trackpad stop working all together. I can connect an external mouse and keyboard and it works fine...I installed a fresh HDD with a fresh copy of Yosemite and still have the same symptoms.
I doubt it's a hardware related issue since they both work on startup, but for the life of me I can't locate the issue that prevents them from working. I have turned off BT, reset PRAM and SMC, reset by holding power button in for a long time after shut down, all with the same results.
I also replaced the top case (new keyboard/trackpad) and have the same results....
What's interesting is if I keep pressing caps lock while the system is booting (press once per second) the keyboard and mouse will work after boot, but then stop after a minute...which is some progress I guess. I am going to try and reinstall the OS one more time and see if that makes a difference....I have reached the end of google and am out of ideas....anyone have any thoughts they would like to share? I may also make an appt with the apple store and see if the geniuses can get me pointed in the right direction (or they may just say replace the logic board).
The odd thing is that the keyboard and trackpad will work during system boot to, say, reset PRAM or boot into safe mode or select any other combination; however, when the system boots into the OS (or recovery mode, etc) the keyboard and trackpad stop working all together. I can connect an external mouse and keyboard and it works fine...I installed a fresh HDD with a fresh copy of Yosemite and still have the same symptoms.
I doubt it's a hardware related issue since they both work on startup, but for the life of me I can't locate the issue that prevents them from working. I have turned off BT, reset PRAM and SMC, reset by holding power button in for a long time after shut down, all with the same results.
I also replaced the top case (new keyboard/trackpad) and have the same results....
What's interesting is if I keep pressing caps lock while the system is booting (press once per second) the keyboard and mouse will work after boot, but then stop after a minute...which is some progress I guess. I am going to try and reinstall the OS one more time and see if that makes a difference....I have reached the end of google and am out of ideas....anyone have any thoughts they would like to share? I may also make an appt with the apple store and see if the geniuses can get me pointed in the right direction (or they may just say replace the logic board).
