Could be any number of reasons, apple has had troubles in the past when they don't put any resin under graphics chips. I believe there are some ipads and iphones with this problem currently which will hopefully be corrected by apple soon. Not saying that is your problem but it is something to look into.
Can you please upload a picture of screen? we would like to see what you seen
由 Buddhika Mahesh 完成的
Could be any number of reasons, apple has had troubles in the past when they don't put any resin under graphics chips. I believe there are some ipads and iphones with this problem currently which will hopefully be corrected by apple soon. Not saying that is your problem but it is something to look into.
由 Shelton Pinson 完成的
There are two backlight circuits on the ipad air, sounds like one is out.
由 Allan Hill 完成的