I need to send my LG Android back to manufacturer since it is not holding charge how do I clone my phone?

[AC Question]

I need to send my LG Android back to manufacturer since it is not holding charge how do I clone my phone?

How do i clone my phone to pc and obtain pics, texts, recordings and notes?
android LG Flex 2

It is not holding a charge so I can't transfer through gmail.

I need to send back to manufacturer