Keyboard keys (QWERTYUIO) not working. Common problem ? Macbook Air 2003 A1466

[alex_kolarski]

The keys (qwertyuio) of my Macbook air 2003 A1466 suddenly stopped working.

I found several questions online about that and did not find any threads about that issue here:

Here is a list of other threads about the issue.

Macbook air 2011-mid keyboard keys Q W E R T Y U I O working sporadically

I have an issue where only QWERTYUIO keys are working sporadically or just not working. I have to press them a lot of times to start working and they work for a while and stop again. I have tried

apple.stackexchange.com

qwertyuio not working - Apple Community

discussions.apple.com

Macbook 'QWERTYUIO' keys not working.

Hi all, i wonder if you can help me. I woke up this morning to my qwertyui and o keys not working on my Macbook. Is there anything i can do to try and fix it or is it going to have go back to apple and be replaced....again? regards --marty

forums.macrumors.com

https://www.fixya.com/support/t23789779-keyboard_keys_q_w_e_r_t_y_u_o_not

SOLVED: Keyboard Intermittently Non Responsive - Top row of Qwerty only - MacBook Air 13" Mid 2011

The usual suspects for this crime is something was spilled into the keyboard: Liquid of some kind or food crumbs. I've seen staples as well as paper mess-up a key or two. The last possibility is the battery as sometimes they swell up pressing from the bottom. For crumbs: Use a can of can'ed...

www.ifixit.com

https://www.justanswer.com/computer/e9bxm-macbook-pro-13-inch-mid-2012-qwertyuio-keys.html

None of which have any meaningful answers.
It seems is it not caused by dust, etc because it is always the same keys.
Looks more to me like design defect or common problem that develops with time.

Have any of you encountered such issue and do you have some suggestions what can I try or look for ?

Best regards,
Alex

 

[2informaticos]

First of all, welcome to the forum!

I suppose you wanted to say 2013.
Is that 820-3437 board?

For Air machines, keyboard matrix is coded into trackpad board.
So partially non-working keys can't be a MLB problem.