macbook air water damage repair and back light ic repair
MacBook air water damage repair and back light ic repair in Hamilton new Zealand
This was difficult repair we have done last week at Applefix Hamilton on macbook air water damage repair and back light ic repair . When we look at the water damaged area it does not look promising that if it can be fixed. See picture below.
Before cleaning the water damaged Macbook logic board we have to test it. So that we can concentrate on the water damaged area. if it is cleaned before any test you might not physically see which area is most effected. Upon testing we find out that processor and bios chip is not damaged and there are few shorts on the few places of the board. Next this is to clean the logic board in a good ultrasonic machine with right composition of logic board cleaning fluid at right temperature, Macbook air water damage repair and back light ic repair is not a DIY repair. It involves way more that using ultrasonic machines and re-flow machines. Because once the macbook logic board is cleaning you will still have short on the board . Which you can only figure out if you can read the schematic diagram and board view reading knowledge. So we cleaned the macbook logic board in ultrasonic machine.
MacBook air water damage repair and back light ic repair in Hamilton
Macbook water damaged logic board came out from ultrasonic machine shinning but it didn’t turn on as there was short on the board Checked and identified shorted lines on the logic board and there was short on the back light ic line. If there is a short on macbook back light ic line it doesn’t mean that ic is short you have to perform different methods to find out where the problem is? If you are interested in learning macbook logic board repair you can take short course at applefix read further here on the course layout.
We decided to clean the macbook logic board one more time in ultrasonic machine as the short was coming from back light ic. After liquid damage the liquid or water accumulate under ic and form a green corrosion which is conductive and create short. After one more clean we decided to re-flow the macbook logic board. Reflow is a process where you set the temperature cycle of re-flow oven so that any cold or broken solder joint on logic board restructured.
After re-flowing tested the Macbook board but same problem short on back light ic. So we decided to take the macbook back light ic and see what is underneath. Finally when back light ic is taken out there was this green corrosion was under the back light ic and it was creating the short and macbook was not turning on. see in the below picture
Look more closely in below picture
So the lesson we learned again that ultrasonic machines and re-flow oven cant do any help with removing corrosion under ic you have to remove clean the area and solder new one on. We cleaned the area and it became shiny again and ready to take new Macbook back light ic
solder back new macbook back light ic tested the power rails from back light ic , no short was found. read some more information on water damage repair here
Hurayyyy Macbook turns on normally it was successful Macbook water damage repair and back light ic repair.
If your Macbook is water or liquid damage
- DO NOT TURN ON,
- DO NOT TRY CHARGING,
- HOT CUPBOARD AND RICE REMEDY DOES NOT WORK
Bring it is ASAP longer you wait it will go dead permanently and stay away from cowboy repairers.
Bring it to AppleFix Hamilton 85/a Victoria street Hamilton new Zealand or call 078394188. If you don’t live in Hamilton you can send your device read instructions here