Hey, i recently hardbricked by installing revolutionary rom on my sch-r530u and i thought the gt-i9300 was the same ( i know, i know, noob problems). I don't have a class 10 sd card and when i plug in the SG3 to my computer, i hear the noise when i usually plug in the phone like as if it were charging or something. But the only problem is that i can't turn it on. I can't access download mode or recovery. I don't know if there's a USB JIG for the SCH-R530U so i have no hopes right now. What should i do? i don't want to throw it away or send it to a JTAG service.