Nokia Lumia 900

Step 1 of 6

Install Zune

Go to www.zune.net on your computer.
Find the download section on the web page to download Zune.
Download and install Zune on your computer.

Step 2 of 6

Connect phone and computer

Connect the data cable to the phone socket at the top of your phone and to your computer's USB port.

Step 3 of 6

Update phone software

Start the program Zune on your computer.
Depending on your settings in Zune, the program may suggest to update your phone automatically.

Step 4 of 6

Update phone software

To start the update manually:
Select SETTINGS.

Step 5 of 6

Update phone software

Select PHONE.

Step 6 of 6

Update phone software

Select UPDATE.
Follow the instructions on the display to update your phone's software.