First things first, this is not something you did, it is a bug with the Dinc2, so your dad shouldn't get mad. You will need to read and follow these instructions on a computer because it involves shutting off your phone.
1. Power off the phone
2. Press and hold down the volume down button while pressing the power button.
3. You can release the power button when the screen comes on, but keep holding the volume button down. You will get to a white screen with multi-colored text.
This will boot you into the hboot screen. This is the only area you can get to the factory data reset since your settings are gone.
it will go through a short programimg function then will give you some options. One of those option should be "factory data reset". Using the volume button scroll down to the data reset option then press the power button to select it. If it asks you if you want to do the data reset select yes. After you do the reset, scroll to "reboot" or "reboot android". Once the phone reboots, you should have your settings back. You will have to go through the setup process again which is simply entering in your gmail account information. Your contacts should reload if they were backed up in your gmail account. All of the apps you have downloaded should start to re-download once you have completed the sign in process. If not, you can get them via the market. You will not have to repay for any paid apps you installed. Let us know if you have any questions, and also let us know how it goes. I'll check back later this afternoon, good luck!