In this post I explain how to repair broken touchpad cable connector on laptop motherboard.
Let’s say you were fixing a laptop yourself and accidentally damaged the touchpad connector or any other similar connector. The problem is the touchpad connector soldered to the motherboard and it’s impossible to replace it with regular soldering tools. Also, these connectors are not sold separately which makes the replacement even more impossible.
Well, the connector is broken and cannot be replaced. Let’s try to repair it. We’ll do it using the same technique as for fixing the broken keyboard connector.
On the following picture you see a typical laptop touchpad connector. The connector has а white base (permanently attached to the motherboard) and locking tab (moving part).
In order to unlock the connector you lift up the left side of the locking tab. The locking tap opens up at a 90 degree angle and releases the touchpad cable. After that you pull the cable from the connector.
On the following picture you see a broken touchpad connector. I wasn’t careful enough and separated the locking tab from the connector base.
Unfortunately there is no way to attached broken tab back to the base.
Here’s how I fixed the broken connector.
Insert the touchpad cable back into the connector. The touchpad cable has contacts on the bottom side – the side which is facing the motherboard.
In order to work properly the cable contacts have to touch contacts inside the connector but it’s not happening when the locking tab is missing.
Find a small piece of plastic. It has to fit inside the connector and be thick enough to fit tightly between the four metal hinges and touchpad cable.
Insert this piece of plastic into the connector. At the same time make sure the touchpad cable also inserted into the connector.
On the following picture you see the touchpad cable seated tightly inside the connector.
The piece of plastic applies pressure on the touchpad cable and it makes good connection with contacts inside the connector. The touchpad works again!
Now you can secure the connection with sticky electrical tape.
This simple trick fixed my touchpad.
Here’s another type of touchpad connector.
The locking tab is broken and also separated from the connector base.
Position the broken tab the way it was plugged in before but do not push it into the connector yet.
Now insert the touchpad cable. In most cases it goes under the locking tab.
Push the cable all the way into the connector.
While holding the cable, push the locking tab into the connector.
Even though the locking tab is broken, it should secure the tochpad cable.
Again, apply some sticky electrical tape over the connection to secure it.
by laptoprepair101.com
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