Thanks.
You won’t be able to upgrade the unit until more space is made available.
You have only about 920MB free, and around 1.7GB is required.
So follow this guide → Tutorial: Sync 3.4 NON-NAV APIM: Failure to Update to Newer Version Sync 3.4 , you need to install the small voice package to see how much space you end up with after that…
Once you make enough room, you will be able to upgrade.
Which language do you require to be installed on the unit?.