Hi Carol D'Artagnan,
Thank you for reaching out to Microsoft Q&A forum. I understand how disruptive it is when the keyboard backlight stops working and an important key like Delete no longer responds, even though it's only a few months old.
Please follow the steps below to help confirm whether this is a software or hardware issue:
Step 1: Confirm keyboard connectivity using LED indicators
With the keyboard attached to the Surface, press the Caps Lock key and then the Fn key.
- If the LED lights do not turn on or off, the keyboard is likely not receiving power. This indicates a hardware issue, and the next step is to submit a service order for a replacement keyboard.
- If the LED lights do turn on and off, the keyboard is receiving power and the issue is more likely related to Windows or software.
Step 2: Verify keyboard functionality in UEFI
Turn off the Surface and wait about 10 seconds.
- Press and hold the Volume Up button.
- While holding Volume Up, press and release the Power button.
- When the Surface logo appears, continue holding Volume Up.
- Release Volume Up when the UEFI screen appears.
Step 3: Test keys in the UEFI screen
Use the Up and Down Arrow keys to move through the menu on the left side.
- If the arrow keys do not respond, this confirms a keyboard hardware failure and replacement is recommended.
- If the arrow keys do respond, the keyboard hardware is working and the issue is likely related to Windows settings, drivers, or firmware.
If a hardware issue is confirmed, please contact Microsoft Surface Support to submit a service order for a keyboard replacement under warranty.
Please keep me posted on how it goes and feel free to reach out if you need any further assistance. I'm here to help.
If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.