What's wrong with my MBA?

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hello,

i'm trying log mba, , i'm getting stymied.

here's situation:

1. computer isn't "chiming" when boot up.

2. when try log computer's admin account, computer accepts password, works few seconds, cursor turns "beach ball" , nothing happens afterward.

3. symptom "backlight" illuminates keyboard not functioning well.

according everymac.com, computer apple macbook air "core i5" 1.6 11" (mid-2011)

am, however, able log computer's safari-only "guest" account, i'm posting from.

can me problem?

thanks,
tde
 

boot internet recovery mode , run disk utility check errors. try resetting nvram or smc suspect hardware issues. take apple store , let them run tests.
 


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