Default System.IMG for GT-S7562

idk , if this could help , i have my phone GT-S7562 bootloop because i flashed Bravia Engine Uni MOD ,
and now i dont have any backup , just only my CWM , i know flashing New Firmware could help me out
but the problem is our Internet Connection are suffering from low download speed which causes me to download 500mb for Days! , and sometimes it fail's , now im looking for an easier way to have my phone revived back. so i was thinking if flashing System.IMG using Odin could help? if so , please upload the file for me , or give me some other suggestion.
(does flashable Build.prop works too?)
Thanks in advance