Most likely your NABI XD is not opperation on the latest software. If your screen is frozen you should perform a factory reset that can be found here -> https://www.nabitablet.com/support/products/nabi-xd/inst/i-need-to-perform-a-factory-reset-on-my-nabi-xd-115#overview
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Most likely your NABI XD is not opperation on the latest software. If your screen is frozen you should perform a "Factory Reset" that can be found here -> https://www.ifixit.com/Wiki/NABI_XD_Troubleshooting
Most likely your NABI XD is not opperation on the latest software. If your screen is frozen you should perform a factory reset that can be found here -> https://www.nabitablet.com/support/products/nabi-xd/inst/i-need-to-perform-a-factory-reset-on-my-nabi-xd-115#overview