For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Thanks for your reply
here is the working Bios File link
https://www.4shared.com/file/ke0hsur8fi/820-3437-B-Good.html
and here is the Password for not working macbook air : C1MNQ370G086
Hello everyone
I got a macbook air 820-3437-B with some liquid damage around U6100 and U1900, when you connect it to the charger the fans spin and green/orange light turn on and it light up USB mouse i tried to clean all the corrosion around U6100 and replaced U1900 but no luck then i replaced...