Fix for firmware upgrade on Dell XPS 15

Firmware update from 01.00.07 to 1.2.0 is not permitted. The system is configured to block firmware updates to previous revisions

Sound familiar? I couldn’t install any Dell firmware updates for my XPS 15 due to a rogue prefix ‘0’ in the default factory firmware version ‘01.00.07’ causing┬áthe Dell BIOS update tool to think it’s downgrading itself. ­čśÉ

Here’s how to fix it.

  1. Restart your computer
  2. From the DELL logo press the ESC key until the BIOS Settings prompt shows
  3. Open the Maintenance > Firmware Downgrade tab
  4. Remove the check on Do not allow firmware downgrade
  5. Click Apply and then exit BIOS
  6. Run the firmware upgrade

That’s it!

Resolve Bluetooth connection issues on Dell XPS 15

My Dell XPS 15 and Nexus 5 just don’t get along. Updating to the latest Bluetooth drivers for the Broadcom-enabled embedded chipset resolved this.

Here’s how to update your Broadcom-based Bluetooth drivers in Windows 10:

  1. Visit the Bluetooth section of the Broadcom website
  2. Expand the WIDCOMM® Bluetooth Windows® Software for Windows 10 & 8, 64-Bit section
  3. Click on the Download button to the left of the WIDCOMM® Bluetooth Windows® Software for Windows 10 & 8, 64-Bit header
  4. Open the downloaded ZIP archive (e.g. BTW_12.0.1.940_win8_10_x64.zip)
  5. Run Setup.exe within the Retail Package directory of the ZIP archive
  6. You may be prompted by Windows SmartScreen, click the More info link and the Run Anyway button within this dialog
  7. Click the Upgrade option within the WIDCOMM Bluetooth Software dialog
  8. Restart the computer when prompted

That’s it. ­čÖé