For parts procurement or visual identification of the board's layout, you can view the unit on marketplaces like eBay.
The most practical change is the on the updated schematic. The old 10-pin header (J1) confusion has been resolved: rm28525 schematic diagram updated
This is where most failures occur.
You might find older, hand-drawn, or low-resolution scans of the RM28525 online. However, the term "updated" in our keyword signifies three major improvements in the latest revision (Rev 2.2 or Rev 3.0): For parts procurement or visual identification of the