P0.24 Row on right side of Corne not responding
Went through almost all of the troubleshooting:
Checked each diode with multimeter
Checked each hot swap switch with multimeter
Reflowed pin on PCB side
Reflowed pin on nice nano side
The only thing i haven't checked are the pads on the PCB, even if that failed wouldn't I need a new right side PCB anyway?
2 Replies
Nice troubleshooting so far! A whole row is driven by a single nice!nano pin, so focusing on P0.24 is right. You don’t necessarily need a new PCB—first confirm whether it’s a joint/trace issue vs. the MCU pin itself.
Try these quick checks:
- Use the Corne pinout to locate the P0.24 row on the right half: see Corne Wireless Troubleshooting & Pinouts.
- Power off. Continuity test from the nice!nano P0.24 header pin to that row’s nearest diode pad (pick any key on that row). If no continuity, the break is between the header pad and the row trace.
- Check for shorts from P0.24 to adjacent pins or GND (continuity/buzzer).
- Re-seat the nice!nano (especially if using no-solder or hotswap headers) and re-check the P0.24 joints on both the PCB and the nano.
- If you can, swap the two nice!nanos between halves. If the problem follows the nano, the MCU pin may be bad; if it stays with the half, it’s on the PCB side (joint/trace/pad).
About the pad: if the pad/trace is damaged, that’s when repair options depend on the extent of the damage. Before assuming replacement, confirm the continuity result above. If it’s indeed a broken pad/trace, email hello@typeractive.xyz and we’ll help with next steps.
Helpful refs:
- Corne Wireless Troubleshooting & Pinouts: https://docs.typeractive.xyz/build-guides/corne-wireless/troubleshooting
- Row(s) or Column(s) Not Working: https://docs.typeractive.xyz/troubleshooting/rows-columns-not-working
If you want, reply/tag me with a photo of the P0.24 header joints (both sides) and your continuity test points/results, and I’ll help you pinpoint it.
Troubleshooting & Pinouts | Typeractive.xyz Documentation
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Row(s) or Column(s) Not Working | Typeractive.xyz Documentation
Fix row(s) or column(s) not working on your keyboard.
if i swap the microcontrollers do i need to reflash them to the new sides for testing?
i swapped the controllers and reflashed them to their respective sides, and now on the left hand side the middle row is not working.
but now the entirety of the right hand side is also not working