When the wireless keyboard is not working, first check the battery and power supply to confirm that the power supply is normal; then troubleshoot the connection problems to ensure that the Bluetooth or USB receiver connection is stable; then check the driver and system settings, update or reset if necessary; and finally troubleshoot hardware failures or environmental interference. 1. Check whether the battery is powered and try to replace or charge. 2. Make sure that the Bluetooth is paired or the USB receiver is plugged in to avoid interference. 3. Update drivers, system patches, or reset system settings. 4. Clean the keyboard, stay away from interference sources, or use software to diagnose hardware status.

The wireless keyboard does not work is a common problem, especially after using it for a while. In fact, most of the time, there is no big problem, the key is to check it step by step. The key is to confirm whether it is a battery, connection, driver or hardware issue first.

1. Check the battery and power supply

The most common problem with wireless keyboards is that they are out of power. Although it seems simple, many people's first reaction is that there is something wrong with the computer setup, and instead ignores the most basic power supply situation.

• Check whether the keyboard has indicator lights, such as Bluetooth connection lights or Num Locks. If there is no response, it is likely that there is no power.
• If it is a rechargeable keyboard, plug in the charging cable to try to see if the screen can be turned on or there is a prompt sound.
• If you are using an ordinary battery, it is recommended to try a new one directly, so as not to save trouble and repeatedly test the old battery.

Sometimes even if it looks a little electric, but not enough voltage can cause the keyboard to be intermittent or completely fail.

2. Confirm whether the connection method is normal

Wireless keyboards are usually connected via Bluetooth or USB receivers, and you may encounter connection problems in both ways.

If it is a Bluetooth keyboard:

• Make sure the computer's Bluetooth function is turned on and paired successfully.
• You can try "Forgot your device" and repair it.
• Check whether there is any interference from other Bluetooth devices, such as mouse, headphones, etc.

If it is a 2.4G USB receiver:

• Plug into another USB port, especially the interface behind the desktop may have a better signal.
• Make sure the receiver is not loose or is covered with dust and poor contact.
• Try to test whether the keyboard and receiver work properly on another computer.

Some keyboards support multi-device switching, and may mistakenly switch to other devices. Remember to check whether the toggle switch or keys are correct.

3. Driver and system setup issues

Sometimes operating system updates or driver exceptions can also cause peripherals to be unrecognized.

• Open Device Manager and see if there is a yellow exclamation mark. If so, it may be a driver problem.
• You can try right-clicking to uninstall the device, then unplug the receiver or restart Bluetooth to allow the system to re-identify.
• Update the system patches, and sometimes the official will push updates to repair peripheral compatibility.

If you are a Mac user, you can go to "System Preferences > Keyboard" to see if your keyboard is recognized, or try resetting NVRAM (hold Option Command PR when restarting).

4. Hardware failure or interference problem

If none of the previous steps solve the problem, it may be that the hardware problem or the surrounding environment is too serious.

• Check whether there are any problems such as dust in the keyboard, liquid leakage, etc., especially the mechanical keyboard is more likely to be affected.
• Stay away from routers, microwave ovens, mobile phones and other devices that are prone to electromagnetic interference.
• If possible, change the receiver or test it.

Some brands of keyboards also come with a diagnostic mode, such as Logitech can detect connection status and battery power through Logitech Options software.

Basically these methods are all, and most wireless keyboard problems can be solved through the above steps. It doesn't have to be done all of them, but it's more efficient to check them in order.

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