hi everyone, i just got myself a 2nd hand macbook Air mid 2013 2 days ago. after clean install from 10.8 to meverick and i straight perform updates(some MBA firmware update) from appstore.during the process i didn't charge my MBA.

after updated, it perform a restart. but after the restart, my MBA is not booting anymore. i can hear the fan "zip.................zip" but it just wont boot up.

any1 face this problem? so what am i suppose to do?

previous owner claims that the MBA was bought on April at Dubai. because when i wanna check the warranty, this MBA was not registered yet and i cant register now, it require "proof of purchase" even though i put the date on April 2014. can i email apple to register this MBA?

i don't think u can upgrade MBA's ram coz it was soldering on the board. as for the HDD/SSD, yes u can replace with after market SSD. check here