I have a 1645 with A11, i see A09 seems to be better. How do i downgrade to A09?
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http://forum.notebookreview.com/dell-xps-studio-xps/450888-up-downgrading-your-1645-bios.html
Install A08 using the methods listed there. Then install A09 from Dell.com.
How to downgrade to A09?
Discussion in 'Dell XPS and Studio XPS' started by mystycs, Sep 30, 2010.