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can someone please tell me after the model number like LU64 what the 3.0 is for and the 4.0 where do you find those numbers and what do they mean.
super newbie please be aware super newbie. Thanks for the patience and understanding.

3.0 + 4.0 is the system menu mate you can find out what number your on by going to the settings and its on the top right of the screen
 
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