The 3g Mobile Hotspot was installed when I upgraded the OS on my Defy from T-Moble. The hot spot works well for my IPad2, but my laptop is asking for a security key. When I contacted T-Mobile, they tried to charge me but found their system does not recognize the 3g Mobile Hotspot being supported for their Defy. They could not give me a security key. Does anyone have a suggestion on how to get the key?