Foxwell NT644 reset Spanish Language from English and the function reduces?

Let’s firstly read several pictures of Foxwell NT644 function menu, after I received it from foxwellshop site, I couldn’t wait to power on and reset English to Spanish, well after that I find I have less function? Actually, it is normal, how to do? Go to last paragraph for answer.

NT644-spanish NT644-spanish-02 NT644-spanish-03

This is English language and function options


Then I contacted foxwell engineer at mail, they explained after I reset English to Spanish, the function will be added again, with my serial number, they helped me add back.