Repareer je spullen Gemeenschap Winkel

Reparatiehandleidingen, ondersteuning en informatie over het oplossen van problemen voor MacBook Air-modellen met een beeldscherm van 13 inch.

3719 Vragen Bekijk alle

Opties

What causes these strange objects to flash up on boot screen?

I noticed this happens ONLY when I start up this MB Air A1466 13" 2014 (BigSur)

It flashes up for a split second then is gone and everything is running smoothly otherwise. It is a clean install of BigSur.

I found this video https://www.youtube.com/watch?v=QYLOhbrn... but the MB Air series has built in RAM, but it is a similar grid of squares.

Block Image

Block Image

Block Image

Update (07/17/24)

@codywankenobi It is a fresh clean install on a MacBook Air 13" 2014 with BigSur and with all the latest software updates as that is all I have done to it, no other settings have been changed. I never noticed it before the install as it was reinstalled when it arrived here. @danj There are no SO-DIMM RAM or removable modules on MacBook airs. The. video I linked to was the nearest thing I could find to this issue and it was from a MacBook Pro 2012 I think. Is there any fix for this or should I just try another clean install? Because when it goes for sale it is not a good look....

I did change the resolution to 1280x800 or something, when I reset to defaults the shapes are no longer happening at boot!

Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

Is dit een goede vraag?

Ja Nee
Score 1
Voeg een opmerking toe

3 Antwoorden

Filteren op:
Meest nuttige Nieuwste Oudste
Gekozen oplossing

Opties

Has this only recently started to happen? This is usually from older systems or graphic drivers and happens during boot/startup due to the drivers being intialized and the screen registering/resetting itself to the correct configuration to make ensure everything is operating correctly. Make sure your drivers are also up to date as well as make sure the Graphic/Resolution settings are set correct so they dont exceed the refresh that of the gpu/or intergrated gpus specs.

Was dit antwoord nuttig?

Ja Nee
Score 2
Voeg een opmerking toe

Opties

@danj I have reset the display to the default setting as I did change it from the default to 1280x800 so I can read it better and now is all fine :) Odd that it does this if you change a resolution.... never seen it before.

Was dit antwoord nuttig?

Ja Nee
Score 2

1 Opmerking:

:) Sometimes it’s the simple things that can be the solution. Glad or hopefully I was able to help! I always smile when it’s a simple solution because I’ve been there thousands of times because I’m horrible about over thinking and learned over the years to keep it simple stupid (KISS) this has extended from managing restaurants to technology and vehicles.

Always start with cheapest and easiest method first when troubleshooting and then slowly start to invest time or money in the other more extreme probabilities.

Heck you’d be surprised how many people don’t understand that restarting something can fix it.

door

Voeg een opmerking toe

Opties

The 13” systems use the main RAM for its video buffer So there is a high dependence of good access and stable RAM.

I have found the SO-DIMM slots or the RAM modules are the issue. It can be as simple as dirt or tarnish on the module contacts, the socket warps from heat. Sometimes loosening the mount screws slightly can do wonders! The last issue is just bad or wrong spec’ed RAM modules.

Was dit antwoord nuttig?

Ja Nee
Score 0

8 opmerkingen:

@livfe - My answer was generic across any Mac system which uses main RAM as a video buffer when using the supported macOS.


Try cleaning the RAM chips pins using a stiff toothbrush and 90% isopropyl alcohol, then apply some flux and reheat the solder joints touching up with some solder using a hot air re-work system

door

@danj Yes, but this is regarding a 2014 MacBook Air....Is there a 'fix' for this?

door

@livfe - Cleaning and re-soldering the RAM chips or replacement if you can identify a bad chip. The tantalum capacitors within the RAM support logic could be bad or just tired.

door

@Dan ???? You want this person to literally do something that would cost more time and money for something that he is selling? And making a grand assumption without even seeing any of the capacitors on the board? Screen flickering is very broad and happens on a lot on older systems during boot, it could very well be a bad capacitor but if it’s not happening after it boots up it could really be anything from a cap to power supply, to drivers. I wouldn’t expect someone to really care that much or even notice it for a 75$ laptop at best. I’m just making an assumption but if this person is selling I doubt they have the flux or even tools to test every single capacitor and disassemble the whole thing to test every single cap or even worse introduce new problems like completely frying the screen but the cap was put on the wrong. It’s common with MacBooks, possibly a capacitor, will continue to work until it doesn’t and even then you could just hook it up to a secondary monitor.

door

And to suggest to re soldering the ram chips which is beyond beginner level which they wouldn’t be here asking for help if they had equipment or time

door

3 commentaren meer tonen

Voeg een opmerking toe

Voeg je antwoord toe

livfe zal eeuwig dankbaar zijn.
Weergavestatistieken:

Afgelopen 24 uren: 7

Afgelopen 7 dagen: 81

Afgelopen 30 dagen: 81

Altijd: 81