Damaged chip on controller

[BreadSoup]

I recently mistakenly plugged in a smart port into the legacy field control port on my v5 controller and has made the controller impractical for competition use since it is unable to run autonomous and a few other things so I took the controller apart to see what was wrong and I found a cooked chip

I was wondering if someone could attempt to identify this chip and let me know what chip I could buy to unsolder and solder on a new one to use as a non competition controller we can use as a dedicated skills test controller or something at school

This is what the chip should look like

This is what my controller’s looks like

[BreadSoup]

1st photo of the port was a mistake just ignore it

[Gigahertz.t]

I don’t know the answer to your question, but be warned that modifying VEX electronics, even for well-intentioned repairs like this, is illegal. The only legal way to fix this is to ship it to VEX and ask them to repair it.

[BreadSoup]

I am fully aware of the consequences and understand the risk I think that the upsides of having a controller that works perfectly at school is much greater then the downsides of not being able to use it in a competition

[turbodog]

You could take a chance that standalone operation is normally open… and just remove the chip and see if it runs.

[BreadSoup]

You were correct I removed the U1 chip and it is now out of competition mode thank you

I am still wondering what the function of the chip was to possibly replace it someday just to have it

For now though this works I’ll update if I find any hiccups but I likely won’t thank you again

[jpearman]

@BreadSoup

I am still wondering what the function of the chip was

It’s a quad TVS diode protecting the competition control lines and controller from static. Best thing would be to find a RJ45 dust cover and block the port.

[turbodog]

Wow.

Sometimes I get lucky.

Congrats to you for removing the chip and not roasting the board in the process.