Entire Column not working / no connections

[edogast]

Hello there,

Keyboard: Redragon Kumara K552 (outemu hotswap)
Problem: Entire X row does not work. Here are the pictures https://imgur.com/a/P1RXpmD
I watched a few youtube videos about bridging and I tried to connect "X" to "Z" and "C" but it didn't work. I saw a youtuber connect it to a transistor that is right next to the key, but mine doesn't have any transistor to connect to. Can someone help me? where would I need to bridge?

Thank you for your time.

[wjrii]

1. Everyone's budget and interests are different, but evaluate how much time and effort a $35 TKL is worth to you.  Also, not to put too fine a point on it, but did you have a liquid spill?

2. Is it the X row or X column?

3. If it's the entire column (and I think so, based on the screenshot of the mapping tool?), connecting to Z or C is unlikely to be the issue.  The issue is more likely somewhere between X and one or more of D, E, 3, or F3, or the microcontroller.  Look up how a "keyboard matrix" works and try follow the traces under the PCB's solder mask to better diagnose where the issue lies.

4. You may also want to re-flow the pins you've already re-soldered.  I'm no great expert at soldering, but that means I can tell you when I've had them go blobby like that, those are the ones more likely to have "cold" joints, where one side wasn't quite hot enough so all the solder balled up around one of the connections and may not actually be making electrical contact, despite the large amount of solder present.

[edogast]

Update: I tried to mess around and the keys do register when I press it, but it presses the keys next to it instead.
So when I press "X" it registers as "Z" and "C" being pressed both together at once. Does anyone know what this means?

 
1. No, not a liquid spill, The "x" button just suddenly stopped working. At first I changed the switch (since it's hot-swap) and it still didn't work. So I removed the hot-swap thing and just try to solder the switch directly to the PCB. Still doesn't work.

2. X COLUMN

3. It's like a very complicated maze.

4. Yeah, wish I could buy those high quality soldering iron stations one day.

1. Everyone's budget and interests are different, but evaluate how much time and effort a $35 TKL is worth to you.  Also, not to put too fine a point on it, but did you have a liquid spill?

2. Is it the X row or X column?

3. If it's the entire column (and I think so, based on the screenshot of the mapping tool?), connecting to Z or C is unlikely to be the issue.  The issue is more likely somewhere between X and one or more of D, E, 3, or F3, or the microcontroller.  Look up how a "keyboard matrix" works and try follow the traces under the PCB's solder mask to better diagnose where the issue lies.

4. You may also want to re-flow the pins you've already re-soldered.  I'm no great expert at soldering, but that means I can tell you when I've had them go blobby like that, those are the ones more likely to have "cold" joints, where one side wasn't quite hot enough so all the solder balled up around one of the connections and may not actually be making electrical contact, despite the large amount of solder present.