Solved: How to hard reset T-Mobile Pulse mini: Press the menu icon > Settings...

Restore factory default settings

Please note: All phone data will be deleted. Data on the SIM card is not deleted.

Find "Factory data reset"

* Press the menu icon.
* Press Settings.
* Press Privacy.
* Press Factory data reset.

Restore the factory default settings

* Press Reset phone.
* Press Erase everything.
* Wait a moment while the phone restores the factory default settings.
* Follow the instructions on the display to configure the phone and prepare it for use.