Ga door naar hoofdinhoud

Repareer je spullen

Recht op reparatie


Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

622 Vragen Bekijk alle

Screen is blinking non stop

Hi all,

After I changed my battery I read it was needed to run a NVRAM and SMC.

Well I did that and after running NVRAM my laptop started blinking, but so much that is impossible to do anything. Does anyone know how to fix it?

Here is the video of it:


Beantwoord deze vraag Dit probleem heb ik ook

Is dit een goede vraag?

Score 0
Voeg een opmerking toe

1 Antwoord

Did you let the system charge the battery up? What does the onboard battery checker tell you? What is the color of the MagSafe charger LED Amber or Green?

Block Image

Did you do anything else like take the logic board out so you could clean the dust out? Did you use a small brush to scrub things down and then use vacuum or did you use a can of can’ed air to blow the debris out?

You did something else here which messed you up. The swap out of the battery shouldn’t have don’t anything.

Was dit antwoord nuttig?

Score 0


Hi Dan,

thank you for the reply.

MagSafe is green and battery checker shows all green.

I just removed the dust with my hands, the ones that were visible, no brushes and no vacuum or air. Should I do that?

What I see is that when I leave the mac off, after it cools down I turn on and the screen is not blinking, after some minutes it starts, and also while is is cold it is blinking a little, after I put the login and it loads the UI than it blinks intermittently.

thanks again Dan


@Augusto Arnold - Don't use a vacuum! Get a can of Can'ed air, use a soft paint brush to lightly scrub the logic board surfaces after taking it out following this guide: MacBook Pro 17" Unibody Logic Board Replacement make sure you follow proper ESD practices. I would clean off the old thermal paste and apply a fresh coat on both the CPU & GPU chips. Its important to not let the fresh thermal paste go past the black silicon chip its self! You don't want to covering anything on the green chip base, a little goes a long way! Fully clean the heat sink of any dust buildup as well.

Hopefully we can get this going again.


Thanks a lot Dan,

I will do what you said, to me seems that there is something with temperature of the GPU, as it starts ok when cold. I will try to find some instructions online on how to apply the thermal paste correctly.




@Augusto Arnold - Give this a read How to Apply Thermal Paste


Voeg een opmerking toe

Voeg je antwoord toe

Augusto Arnold zal eeuwig dankbaar zijn.

Afgelopen 24 uren: 0

Afgelopen 7 dagen: 0

Afgelopen 30 dagen: 0

Altijd: 23