I've had this MacBook Air for 5 years and have always cleaned it with a pampers sensitive wipe then with black polishing cloth.
two nights ago I did this and after the keyboard wouldn't work it's typing strange mathematical symbols and the M key doesn't work at all. I've plugged in a USB keyboard which works fine. Left laptop in the airing cupboard the first night. Then yesterday I screwed off back panel and dryed keyboard with hair dryer on cold. Then left on windowsill with radiator on and window open.
this morning it still doesn't work. Any suggestions as I'm quite confident this should work again
two nights ago I did this and after the keyboard wouldn't work it's typing strange mathematical symbols and the M key doesn't work at all. I've plugged in a USB keyboard which works fine. Left laptop in the airing cupboard the first night. Then yesterday I screwed off back panel and dryed keyboard with hair dryer on cold. Then left on windowsill with radiator on and window open.
this morning it still doesn't work. Any suggestions as I'm quite confident this should work again