How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ernest Agyare Your Own Question
Ernest Agyare
Ernest Agyare, Computer Hardware Engineer
Category: Mac
Satisfied Customers: 90
Type Your Mac Question Here...
Ernest Agyare is online now
A new question is answered every 9 seconds

After power failure due to lightning I tried to turn the Mac

This answer was rated:

After power failure due to lightning I tried to turn the Mac on and got sound but no screen!
What now ?

ErnestAgyare :

hello my name is XXXXX XXXXX i will be glad to assist you

ErnestAgyare :

did you have you macbook plugged in a surge protector or directly to the wall

ErnestAgyare :

first please try to do a reset

ErnestAgyare :

pram reset

ErnestAgyare :

Reset PRAM by holding Command+Option+P+R upon boot-up until it chimes twice.

Shut down the computer and this time, reset the NVRAM by holding Command+Option+O+F. Enter the command reset-nvram and press enter/return, then type reset-all and press enter/return.

ErnestAgyare :

are you there

Customer: Yes,I was plugged into a surge protector,but can't reset pram--- will not chime twice on reboot!
ErnestAgyare :

may i give you my honest opinion from seeing this when i use to work at the apple store?

Customer: Yes, please give me your honest answer!
ErnestAgyare :

logic board is toast or GPU (graphic component) from the lightning

Ernest Agyare and other Mac Specialists are ready to help you

Related Mac Questions