Wendy, if all you've done is push the pinhole reset button, you haven't done a factory reset.
Make sure the device is fully charged.
Remove any SD cards.
Hold the power button down for 15 seconds to ensure the device is off.
Hold down the Home button, and turn the device on while holding Home down.
You should see the "disco lights" (rapidly flashing white light, some colours) followed by a factory restart.
If this doesn't work, leave it a short while, then try again from the beginning.
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