I need to have an user's manual that is easy to understand and teach me how to operate this ...

Trying to operate the unit is complicated and the instruction that comes with the unit is so brief that it is hard to understand. I tried to chat on line with a representative and he/she is rude and unhelpful. I need to have an user's manual that is easy to understand and teach me how to operate this system. Where can I get it? The user manual that I am looking for must be in English, the one that comes with the unit is mostly in Chinese.

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