I recently picked up the Corsair Galleon 100 SD, Corsair’s new mechanical gaming keyboard with integrated Stream Deck LCD keys. I covered the full setup and first impressions in my earlier review. On paper, it’s a compelling product: Cherry MX-style switches, per-key RGB, and Stream Deck functionality built right into the keyboard. In practice, mine shipped with a defect that made it nearly unusable for serious work.

Firmware Fix (April 2026)

On April 6, 2026, reader Paul B posted in the comments that Corsair had quietly published a public beta firmware (v1.4.73) for the Galleon 100 SD. The release notes specifically mention the left Shift / Caps Lock issue.

This is a manual firmware update. Unlike the normal auto-detect flow in the Corsair Firmware Update Utility, you need to download the firmware file from Corsair’s support page and upload it yourself. Here is the process:

1. Download the beta firmware .bin file from Corsair’s Galleon 100 SD Beta Firmware page.
2. Go to the Corsair Firmware Update Utility in Chrome and connect your Galleon 100 SD.
3. Click Manual Update (not the normal Update button).
4. Select the downloaded .bin file.
5. Click Update and wait. The process takes about 2 minutes and involves two steps: uploading the firmware, then flashing it to the device. Do not close the browser or unplug the keyboard.
6. You should see a green “Update successful” confirmation when it is done.

After installing the update, I tested the keyboard extensively and the left Shift / Caps Lock issue has not reappeared. This is on the same replacement unit that was still triggering the defect as recently as April 5. The firmware update appears to have resolved it.

Important notes:

• This is labeled as public beta firmware. Corsair has not promoted it to a stable release yet.
• My testing is limited to one unit over a short period. If the issue returns, I will update this post.
• If the firmware update does not fix the problem on your unit, the RMA / return path is still available.

The Problem

Most every time I pressed the left Shift key, Caps Lock would activate. You can imagine how quickly that derails any kind of productive typing, coding, or gaming. Tab and other keys in the row seem to also be somewhat affected.

What I Tried

Before filing a return, I wanted to rule out every possible software and driver explanation. Here’s everything I tested:

1. Keyboard Tester — Pressing left Shift clearly showed Caps Lock firing alongside it. No ambiguity.
2. Windows On-Screen Keyboard — Same result. The OS was receiving a Caps Lock signal every time left Shift was pressed.
3. iCUE software — Updated to the latest version and reset the keyboard profile. No change.
4. Disabled Caps Lock — Tried remapping Caps Lock to disabled/no action in key remapping. The defect persisted — Caps Lock still toggled on frequently on a left Shift press.
5. Reassigned keys — Attempted various key reassignments. No lasting effect on the behavior.
6. Full keyboard reset — Factory reset the keyboard to default settings. Still broken.

The screenshot above shows both Shift and Caps Lock registering simultaneously from a single left Shift press. This confirmed it’s a hardware-level issue, not a driver or configuration problem.

I’m Not the Only One

A quick search turned up other users on Reddit reporting the exact same behavior on the Galleon 100 SD. Left Shift triggering Caps Lock appears to be a defect affecting at least some units in this product line.

The Support Experience

Corsair’s and Elgato (since Corair owns them now) support process routes you through an AI chatbot:

The bot correctly identified that the device likely needed a warranty exchange, but the flow required filling out a multi-step form inline in the chat window: name, contact info, shipping address, part number, serial number, photo uploads, and a copy of your invoice.

The photo upload process deserves special mention: uploads reportedly take up to 30 seconds per file, must be done one at a time, and the only confirmation that an upload is still in progress is the absence of an error message. Not exactly confidence-inspiring UX.

That said, the form did eventually go through and generate a support ticket. We’ll see how the replacement process goes.

Workaround: Disable Caps Lock Entirely in Windows

If you’re dealing with this issue and haven’t tried the firmware update yet, start there. If you need a temporary workaround while waiting, you can disable Caps Lock at the OS level. Note that this doesn’t fix the underlying defect; it just prevents Caps Lock from toggling.

Option A: Microsoft PowerToys (Easiest)

Install PowerToys from the Microsoft Store or GitHub. Open Settings, go to Keyboard Manager → Remap a key, and set Caps Lock to Disable. Done.

The catch: PowerToys has to be running for the remap to work, and it won’t apply at the Windows login screen.

Option B: Registry Scancode Map (System-Level)

For a system-level fix that works everywhere, including the login screen, with no background app required:

1. Open Registry Editor and navigate to:
   HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlKeyboard Layout
2. Create a new Binary Value named Scancode Map
3. Set the value data to:
   00 00 00 00 00 00 00 00 02 00 00 00 00 00 3A 00 00 00 00 00
4. Reboot to apply.

This maps the Caps Lock scancode (0x3A) to nothing. To undo it later, just delete the Scancode Map value and reboot.

Alternative Keyboards Worth Considering

If you’re returning yours or just shopping for alternatives, here are a few solid options in the premium mechanical keyboard space:

• Corsair K100 RGB — Corsair’s own flagship. No Stream Deck integration, but rock-solid build quality and proven reliability.
• Razer BlackWidow V4 — Full-size with dedicated macro keys and Razer’s Synapse software for customization.
• SteelSeries Apex Pro — Magnetic switches with per-key actuation point adjustment and a built-in OLED display.

If the Stream Deck LCD keys are the main draw, consider pairing a standalone Stream Deck with a dedicated mechanical gaming keyboard. You get the same functionality without the single-point-of-failure risk.

Bottom Line

If your Galleon 100 SD has the left Shift / Caps Lock defect, try the beta firmware update (v1.4.73 first. It resolved the issue on my unit after weeks of frustration and a failed RMA replacement.

If the firmware update doesn’t fix it for you, Corsair’s warranty support is available. Return it or open a ticket. The workarounds above (PowerToys or Registry) can keep you productive in the meantime.

Part Number: CH-912A31I-NA

If you’ve tried the firmware update, drop a comment below and let others know whether it worked on your unit. The more data points we have, the better.