Need Rom for S6 CLone(G920f) with 6571a/6589

HI, im owning a s6 clone and got it bricked. it bootloops and i already tried wiping it in recovery..

i opened the backcover, theres a 6571a on the chip. mtkdroid tool says its a 6589_e_lca..

i would love you to death and beyond if you could gather me a rom, i tried every single one around i could find. i bought this s6 clone in privat, i dont know where its from im afraid. if you need any further infos, please tell me!