thebiggasra.blogg.se - How to clean a macbook trackpad

All golden traces were intact and undamaged. The end that connects to the trackpad looked great. The keyboard cable looked clean and undamaged. I didn’t find any damage inside this connector either.Īfter inspecting all the connectors, I moved to the cables. Releasing this cable can be a little bit tricky because the connector is hidden under the cable.Īgain, unlock the connector first (red arrow) and pull the cable out. The last connector to inspect was for the keyboard cable. I removed the trackpad cable and set it aside for later. New trackpads for MacBook Air available here. If the see any water damage on this connector, it’s necessary to replace the trackpad.

I disconnected the cable from the trackpad and inspected the connector. I very carefully cleaned up the bluish residue on the connector pins using a soft toothbrush and 99% isopropyl alcohol. You’ll see on the last picture what it did to the cable. There was some light blue residue on the golden connectors. The locking tab can be easily damaged if you apply too much force.Īfter that I looked very closely into the connector and found some evidence of the water damage inside. In order to release the cable you’ll have to unlock the connector by lifting up the locking tab (red arrow) and after that pull the cable out.īe very gentle because it’s a fragile connector. I disconnected the trackpad cable from the logic board.

Yellow rectangular – connection between the trackpad cable and the logic board.

Green rectangular – connection between the circuit board and the cable.

Red rectangular- connection between the keyboard cable and the trackpad circuit board.

There are three connections in this chain:

If both stopped working at the same time (like in my case), you’ll have to take a closer look at the cables and connectors in the red-green-yellow chain.

If the trackpad acting weird (the pointer moves on its own, moves erratically, clicks by itself) but the keyboard still works, most likely it’s just a bad trackpad and replacing it with a new one will fix the issue.

If the trackpad still works, but the keyboard doesn’t, it’s either bad keyboard which has to be replaced or there is a failure in the chain somewhere between the red arrow and green arrow.

A signal from the keyboard travels into the trackpad (red arrow), after that it travels through the trackpad circuit board (green arrow) and eventually goes into the logic board though the trackpad cable (yellow arrow). In a Macbook Air the keyboard is not connected directly into the logic board. In order to troubleshoot a problem like that you have to understand how the signal goes from the keyboard and trackpad into the logic board. I didn’t find any water damage on the logic board. Pay attention during the reassembly process.

For removing the battery you will need a T5 Torx screwdriver.Īgain, three screws I marked with green circles are longer than two other screws.

Two screws I marked with green circles are longer than other eight screws.Īfter removing the bottom cover I disconnected and removed the battery to take a closer look at the trackpad area. For removing the bottom cover you will need a special P5 Pentalobe screwdriver. First of all, I removed the bottom cover to do visual inspection of the internal laptop components.