If you are experiencing problems with the Sleep mode on your Dell computer then it could be related to the basic input/output system or BIOS. You can follow the steps below to update the BIOS:

  1. Go to Dell.com/Support.
  2. Enter System Service Tag
  3. Select Drivers & Downloads
  4. Choose the correct Operating System
  5. In the Category drop-down box, select BIOS
  6. Pick the latest version
  7. Download and save the file
  8. Double Click the icon and follow the instructions to complete the installation.

Now your system will reboot and perform a BIOS update. If the sleep mode is still showing errors contact dell technical support number for assistance.

 

Read More:- Dell helpline number