what i can do when buy this tool

i have best tool and download test copy of this tool

but i never work on Chinese mobiles / tablets

what i can do on this tool ?

how to know if it rda/spd/mtk

how to know what flash file must flash it

i never see any flash file for any tablet name on any support

i can got 2 or more tablet have same name but there not same
and more than 100 type of china mobile call Samsung note 4 SM-N910F but no one like other

so how to know that i must flash it if that hung on Samsung logo
and what if that close on pin

i don’t like to buy and don’t know how to use