Macbook Air Backlight Repair

Repairing Macbook Air with backlight issues caused by liquid damage

Macbook we have received this week was sent to us from interstate and had issues with its backlight. The customer called us early last week and described the issue he was facing.
We were well aware of what was happening by his explanations, hence we able to give him a quote for the repair over the phone. He felt confident in our abilities and cost for the repair and send his Macbook Air for us to repair here in Adelaide.

When the Macbook arrived we turned it on and we could see that there was a dim picture on the screen but no backlight. This Macbook Air needed a repair of the backlight circuit.

Check our other cases of Macbook Backlight Repairs

Apparently there was liquid damage on this Macbook and it was intense particularly around the screen connector and one of the voltage regulators.
We could even see how the LVDS screen connector’s power lines were burned out. We knew this will be a challenging Macbook Air Backlight Repair.

Heavy corrosion around screen cable on Macbook Air with no Backlight
Heavy corrosion around screen cable on Macbook Air with no Backlight

We do stuff differently here, rather than replacing the whole logic board we measure components and identify faulty chip on the logic board. We are not scared of doing a bit more extra work to reduce the cost to the customer as well as reduce the e-waste as our commitment to the planet.

Although, there is a fuse to protect from shorting screen connector damaging the backlight chip (little component marked with P). In this case, seemed like the short was intense and burned the backlight chip together with the fuse itself.

Do you need a Macbook Air Backlight Repair in Adelaide?

If you have iMac or MacBook causing troubles and need a Mac repair service in Adelaide, give us a call and we will advise for the best scenario to get your Mac repaired.

We at IT-Solve, specialize in computer and electronics repairs. And we will do our best to repair your Mac quickly without involving high costs and long queues in repair shops.

Call us now on 0469317177 or drop us an inquiry through our contact form or support @ it-solve.com.au – Our engineers will respond quickly to your inquiry.

Repairing LVDS connector pins and resoldering the components to treat corrosion
Repairing LVDS connector pins and resoldering the components to treat corrosion

We jump straight onto the repair, as it took couple days for the Macbook to arrive from interstate we knew that we had to fix it asap so the customer can have it back quickly.

First, we have started treating the heaviest part of the damage and start resoldering the components around the screen connector. As well as the screen connector itself – the dark spot on the photo.

Replacing burned fuse of Macbook Air with no Backlight on screen

After getting rid of the oxidation and replacing couple heavily corroded capacitors, we measured the fuse and it was also blown.
So we went ahead and replaced the fuse too.

Shorting screen connector of Macbook Air A1466

We knew that there was a big bang around the screen’s power lines, basing on the damage on the LVDS screen connector. But an unexpected short came from display’s connector which was also showing traces of short on the power line.

This would have increased the cost of the repair drastically, due to now we would have the cost of a new replacement screen too.
But we had a better idea, to try to repair the connector instead of replacing the screen.

This is what to expect if you need Macbook Backlight Repair Service in Adelaide

  1. Quote for the repair before any work is done, even over the phone.
  2. Free pick up from the client’s location in Adelaide. Or alternatively, drop in for a quick check while you wait.
  3. Confirming final cost and “Go” from the client.
  4. Repairing and ensuring everything works as expected.
  5. Returning repaired system back to the client. Or the client can pick it up from our workshop.

We discussed this issue with the customer and offered him either to try to repair it or replace the screen for an additional cost. He agreed to have it repaired instead as it would have saved him $600 for a new screen.

Repairing shorting pads on Macbook Air screen connector

Looking at the pads apparently, there was a heat generated in that area due to the short on the LVDS connector. This caused the isolation to melt between the pads and bottom of the connector which is ground.

As this metal ground was wide enough we could modify the connector to avoid them pads shorting. We also applied some Kapton tape there to avoid any future shorts.

Removed short on a Macbook Screen connector

Once screen connector pads were repaired, we could test if the short was gone and concentrate on the remaining of the Macbook Air Backlight Repair.

Testing repaired connector for short on Macbook Air with Backlight issues

Once, a major expense was avoided we continued with the rest of the issues.

Even with the repaired connector and replaced the fuse, the screen power lines were not producing enough voltage to turn on the backlight of the screen.

Macbook still had a dim picture on the screen and needed further repairs. Next stop on the schematic was to replace the backlight chip on this Macbook Air with no backlight.

BGA array LP8550 backlight chip on Macbook Air
BGA array LP8550 backlight chip on Macbook Air
Unsoldering Backlight chip on Macbook Air with Amtec flux
Unsoldering Backlight chip on Macbook Air with Amtec flux
Replacing LP8550 Backlight chip on Macbook Air A1466
Replacing LP8550 Backlight chip on Macbook Air A1466

The last step was to run the logic board on an ultrasonic cleaner. This to ensure there is no more residue around other components of the logic board.

In case you have a Macbook with black or dim screen and ned Macbook Air Backlight Repair always rely on professionals.
These are expensive computers and small mistake may cause you a fortune. Apple electronics are extremely sensitive to ESD and any mishandling may result in damaged logic board.

Successfully repaired Macbook with no backlight issue caused bvy liquid damage.

Please note: This is a showcase of our services, not a tutorial in any sense.  We wouldn't recommend following any of the steps of the article or video to repair your Device yourself! These are sensitive electronics and can get damaged unavoidably! You wouldn't want to be in a situation of your Apple Device worth a lot, being bricked.

Do you need Macbook Repair service in Adelaide?

If you have iMac or MacBook causing troubles and need Mac repair service in Adelaide, give us a call and we will advise for the best scenario to get your Mac repaired. We at IT-Solve, specialise in computer and electronics repairs. And will do our best to repair your Mac quickly without involving high cost or long queue in repair shops. Call us now on 0469317177 or drop us an enquiry through our contact form or support @ it-solve.com.au – Our engineers will respond quickly to your enquiry.