need firmware for this ds flashcart
or a flasher like you can use to mod flashcards to run the ntrboot it's a dstt clone but can't handle original firmware of dstt, and if wrong firmware is flashed it will not be repairable.You'll still need a DS < 1.4.5 firmware to flash the card and upgrade it.
The sticker says : http://r4dsll.com/it's the www.ndsill.net edition right? (can't see it for the sticker is blurry)
Your card is a ndsill.net flash card or a "R4i NDSiLL"
for more info see: https://gbatemp.net/threads/unnamed-r4i-cart.323770/