Hello Teddy,
Thank you so much for posting in Microsoft Community.
I appreciate you raising this concern to us, and I understand that you're having issues with your SD card on your Surface Go 4. You got me here: we'll isolate this issue together.
Here are some steps you can try to resolve the issue:
- Make sure the SD card is properly inserted into the SD card slot. Sometimes, the card may not be fully inserted, which can cause it to not be recognized.
- Restart your Surface Go 4. Sometimes, a simple restart can fix the issue. Press and hold the power button for 20 seconds and release once Windows Logo appears on screen.
- Run Surface Diagnostic Toolkit.
- Check if the SD card is recognized in Device Manager. Go to Device manager > expand Disk drives. See if the SD Card is there.
- If any case it is there, try reinstalling it by right clicking the SD card Driver and selecting Uninstall. Restart device afterwards.
- Try downloading latest driver and firmware for your Surface: Download Surface Go 4 Drivers and Firmware. from Official Microsoft Download Center
- Try using a different SD card to see if the issue is with the card itself.
If none of the above steps work, try resetting your Surface Go 4 to its default settings. This will erase all data on your device, so make sure to back up any important files before doing this. See this link: Restore or reset Surface for Windows - Microsoft Support
Please let me know how it goes and hope it helps!
Best regards,
Rolando S.