HTC HD7 microSD Replacement Possible
we heard at the time that the storage memory would be located inside the device and would not be replaceable. This has turned out to be true in some cases, but some devices like the HTC HD7 use a microSD card internally. This prompted the unwired to test and see if the HTC HD7 would accept a different memory card.
What the team did was take out the original Class 2 8GB microSD card and replace it with a class 6 microSD card of the same capacity. After a bit of trouble and a few hard resets, the new and faster memory card actually worked as it should and still does without any problems.