HTC Inspire 4G text signature setting
ref: signature for HTC Inspire 4G, HTC Inspire 4G text signature
HTC Inspire 4G doesn’t support signature for text messages, if you still want to set signature, you are recommended to install a third party apps. Handcent is good to use.
After install Handcent on your device, let’s learn the way to set signature using Handcent: tap on Menu > Settings > Send message settings, after checking the Enable signature box, touch Personal signature option.