R4 cartidridge or flashcart help

Alright i have tried reading the instructions and many of the tutorials but i can't really understand them. Would someone be able to tell me what to do from where i am right now. NOTHING is on my flashcart right now. I have backups so my original games will work if no one responds to this thread. Can someone please tell me what to do from here? You know like give me the files that will make the newer games work step by step?(I kinda tried the common errors thing but i wasn't sure where to put the latest firmware)

Oh no.
You got an R4!?
Try to return it to where you purchased it, and get something else.
Anything else. Except the N5.
R4 is horrible.

You put the firmware on your SD card.www.linfoxdomain.com/nintendo/ds will have the firmware files for your card. Just download, extract, and put the files and folders on your MicroSD card.