Sometimes we get laptops into our office that do not turn on. One day we had a Sony laptop that did not turn on. The repair was quite difficult but we got there in the end. When we opened the laptop and removed the motherboard we noticed there was liquid damage on the motherboard.
This customer spilt liquid on the laptop and did nothing about it for a month. One day she tried to turn it on and it did not turn on. Sometimes it did turn on but then would switch itself off.
We removed the motherboard and straight away we could see the liquid damage. The damage was all around a large power manager chipset. So we removed the 100 legged chipset for examination. We cleaned up the whole area.
We could see the damage had eaten into the motherboard. The way to remove a chip like this is to clean the board and then put some heat resistant tape on the motherboard to protect it from the intense heat of a hot gun. So We removed the chip using special flux and a hot gun.
After removing the 100 legged chip we could see the problems.
The motherboard had lost its copper footings. We soldered new solder onto the board so the chip would fit back nice to the board again when ready for refitting.
In the picture to your left you can see that leg number 6 is missing on the chip. We have placed the chip upside down as it was easier to clean.
How do you create a leg that has disintegrated?
We took some solder braid. This is copper wire that is thinner than a human hair. So our engineer took a strand of this coper wire and soldered a tiny strip around 2mm long straight onto the motherboard.
The motherboard at this point leeds to be perfectly clean. So again the board was cleaned and the copper leg was soldered in place. We soldered The leg into place. You can see this on the image number 3 on the left.
You can see the small wiring buried inside the motherboard. You can also see the leg we have created. We made it a little longer than needed as this leg needed to be bent up and connected to the chipset when we soldered it back into place.
Leg number 2 was also missing on the motherboard so we just added some solder into its place so the chip would stick to it again. The second leg looks a bit crazy but as long as the solder at pin 2 does not touch pin 1 everything will be fine.
Our engineer re soldered the chip back onto the motherboard. You can see where the copper wire that we placed underneath the chip now needs to be attached back onto the chip. To do this kind of work you need to be like a micro surgeon.
You need a stereo microscope. You also need great tools including a micro soldering iron. If you do not have these tools this type of work should never be attempted. While soldering the chip back into place a small orange capacitor broke off the board and was put back on again.
The big question is after spending all that time on this laptop would it boot up and work again?
Our engineers Have been repairing laptops for almost 20 years now. We know its going to work when we spend all this time on the laptop because we really do understand how motherboards work. The laptop was put back together and bingo !!
Another laptop fixed.
Our engineer spent 4 hours on this laptop and we charged the customer £75 for the repair.
We really do not mind spending so long to try to repair your laptop. We know the laptop may have been given to you by a loving partner. We also know that your files on the laptop are the most important thing to you.
In 2 decades we have had over 11,000 very happy customers and at the end of the day thats what really counts..