Ga door naar hoofdinhoud

Model A1502 / 2.6 GHz (Turbo Boost up to 3.1 GHz) or 2.8 GHz (Turbo Boost up to 3.3 GHz) dual-core Intel Core i7 processor with 4MB shared L3 cache.

494 Vragen Bekijk alle

Start up issues- flickering screen.

My computer just started flickering between the passcode screen and the start up screen when i open it from sleeping (closed). I can force it to shut down by holding the power button and then restart it, it boots up fine.

I haven’t been able to find this particular issue in searches and am hoping someone here might know what is happening and what i need to do to repair.

I am now only able to use it when connected to the power-cord- i gave s new battery coming to replace the current one. (Not sure if this could be related to the flickering)

Thanks in advance for all help.

Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

Is dit een goede vraag?

Score 1
Voeg een opmerking toe

2 Antwoorden

Gekozen oplossing

I'm not sure if the poor condition battery is related to the flickering issue. If it only occurs after waking from sleep if might have to do with your sleep/wake settings. It would be a good idea to try restoring the default settings. You could also try an SMC reset or NVRAM reset. As a last resort you could try reinstalling the OS. Good luck!

Was dit antwoord nuttig?

Score 1
Voeg een opmerking toe

Given the systems age it’s likely the battery is just too old. Install this gem of an App to check your batteries health CoconutBattery

Was dit antwoord nuttig?

Score 1

3 opmerkingen:

I actually already installed that after looking through other forum questions. This battery is showing 0 health.

door

@daphnevega - Bingo! You need a new battery.

The flickering is do to the backlight doesn't have power stabilization logic so as the MagSafe contacts break contact due to dirt the system will flicker when dependent on AC power. Also note some actions will require more power than the MagSafe charger can offer so even with a clean MagSafe the power demand of the CPU can disrupt the backlight power needs.

door

Thanks, Dan- I am glad to get some consensus that it is the battery- that I am already prepared to replace. I love this laptop and am hoping for a few more good years out of it. :)

door

Voeg een opmerking toe

Voeg je antwoord toe

Daphne Vega zal eeuwig dankbaar zijn.
Weergavestatistieken:

Afgelopen 24 uren: 0

Afgelopen 7 dagen: 0

Afgelopen 30 dagen: 3

Altijd: 68