Default help plz plz samsung s3 sch-r530u

hi brothers

i have samsung s3 sch-r530u android 4.3 data interne 3G t not work so i flash by cmw old rom 4.1.1 but now network not working and camera and sound plz help i dont want data internt i want mobile work i try that roms but not work

KIES_HOME_R530UVXAMD4_R530UUSCMD4_1131058_REV00_us er_low_ship.tar.md5

and this
KIES_HOME_R530UVXAMB1_R530UUSCMB1_915896_REV00_use r_low_ship.tar.md5

and try that modem also

plz help i do everything but not work