HTC HD2 Windows Phone can be tweaked to use WiFi 802.11n networks instead of just the 802.11b or 802.11g support advertised. To switch higher-speed wireless, the tweak requires a registry hack but battery consumption of your windows mobile will increase significantly. This may be the possible reason HTC chose to disable WiFi n in their shipping firmware. If you need speed despite the higher battery consumption, then follow the simple steps below:

How to enable HTC HD2 Windows phone to use WiFi 802.11n
- Using a registry editor navigate to hklm/comm/bcmsddhcd1/parms on the HTC HD2
- Change the value of 11nModeDisable from 1 to 0
Note: Registry modification is not advisable as it might brick your phone, so attempt it at your own risk.
