HERE IS THE STOCK FIRMWARE OF CLONE S3 MINI BY NEEDROM.
NOTEO AT YOUR OWN RISK. DOWNLOAD S3 MINI MT6575 FIRMWARE. DESCRIPTION
ROM S3 Mini i8190 MT6575 - ROM Android 4.1.1
Official ROM S3 Mini i8190 MT6575 version: T803_V1_20130325_Dual_sim
BEST OF LUCK.....
BR
REHAN SHAIKH.