I Need to Hard Reset. What will happen if I do. Help.

[Davano]

I want to hard reset my phone cause i acciddntly downloaded the blasted zenzee CMYLXGO.cab that stops sms messenging. When I try to uninstall the blasted cab it wont uninstall. It says it does, but its still there when i reload. So I want to hard reset the phone. I want to know what will happen if i do.

I have an unlocked HTC Touch pro 2 sprint phone(that i got and i didnt flash or give it a rom) using Tmobile provider. Will I still be able to use my Tmobile Sim card with the phone and be able to use text and calls again without hassle if i do a hard reset or watever it is u do that can uninstall that cab file.