First, are you sure you properly connected the device to wifi in the settings? Take a look at these steps to make sure. If you are connected, but still can't load any web pages, you should try resetting your router.

Oh no! The only way to solve this problem is to factory reset your device. Steps to perform the factory reset can be found here.

A few things can be wrong here. Your battery could be dead or your display could be broken. If its neither of these things, you may have to perform a factory reset. Refer to this link for help with any of these issues.