Check the physical connection of the wired keyboard, re-plug or replace the USB port; 2. Replace the battery and re-pair the wireless keyboard; 3. Test the keyboard on other devices to determine the source of the fault; 4. Restart the device and check the system settings or drivers; 5. Troubleshoot physical problems caused by dust or liquid; finally confirm whether it is caused by auxiliary functions such as Sticky Keys. If all are invalid, the keyboard may be damaged and needs to be replaced.
If your keyboard isn't typing anything at all, it can be frustrating—especially if you're in the middle of something important. The good news is that this issue usually has a straightforward cause and fix. Here's what you should check, step by step:

? 1. Check Physical Connections (For Wired Keyboards)
If you're using a wired keyboard:
- Unplug and replug it into the USB port. Try a different USB port if possible.
- If using a USB hub, plug it directly into the computer instead.
- Look for visible damage to the cable or connector.
- Try the keyboard on another computer to see if it works. If it doesn't, the keyboard may be faulty.
? 2. Check Battery and Pairing (For Wireless Keyboards)
- Replace or recharge the batteries —a dead battery is the most common reason wireless keyboards stop working.
- Make sure the keyboard is turned on (look for a power switch or LED).
- Re-pair the keyboard:
- For Bluetooth: Go to Bluetooth settings , remove the device, and re-pair it.
- For RF/USB dongle models: Ensure the receiver is plugged in and try re-syncing using the pairing button (if available).
?? 3. Test in Another Device or OS Environment
- Plug or pair the keyboard with a different computer or device (like a tablet or phone).
- If it works there, the issue is with your original device.
- If it doesn't work anywhere, the keyboard is likely hardware-failed and may need replacement.
?? 4. Check for Software or System Issues
Even a good keyboard can seem dead if the system isn't recognizing it:

- Restart your computer —this fixes many temporary glitches.
- Check Device Manager (Windows):
- Press
Win X
→ Device Manager → Keyboards. - If you see a yellow triangle, right-click and choose Update driver or Uninstall device , then restart.
- Press
- On Mac:
- Go to Apple Menu > System Settings > Bluetooth (or Keyboard) and check connection status.
- Try resetting the NVRAM/PRAM (restart and hold
Option Command PR
for 20 seconds).
? 5. Look for Physical or Environmental Issues
- Spills or debris under keys can cause complete failure. Turn the keyboard upside down and shake gently.
- For laptops: Try an external USB keyboard . If that works, the built-in keyboard may need repair.
? One Last Thing: Filter Keys or Sticky Keys
Sometimes, accessibility features can make it seems like your keyboard isn't working:
- Press Shift five times quickly—this toggles Sticky Keys. If a popup appears, disable it.
- Go to Accessibility settings (on Windows or Mac) and make sure Filter Keys or Slow Keys are turned off.
If none of the above helps and the keyboard still won't type, it's likely a hardware failure . Consider replacing it—especially if it's an older or heavily used model.

Basically, start simple: unplug/replug, check batteries, restart, and test elsewhere. Most of the time, it's something small.
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