EPROM Replacement and Programming
WARNING: This page does not describe the selected car, but rather 136 other vehicles, including the 2008 BMW 760Li, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW X5, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
Larger updates have too many changes to fit in the update portion of the EPROM. An update with this many changes requires an EPROM replacement and reprogramming procedure.
The EPROM is removed and replaced with a new basic state EPROM. The latest software is programmed into the new EPROM providing a data set that has the latest available software.