Sorry, The specs are identical to the GT-S5830B i.e. GSM 850,900,1800, 2100 and UMTS:850 and 2100.
The problem is when I use a root method intended for the S5830B, it says Installing from SD card complete, but then whenever I try to use a program that requires root, or test the root functionality using an app, I get a message saying I don't have root persmissions. (Although I do see a super user icon in my regular phone menu)
Does it make a difference if i'm seeing the following message when entereing recovery mode: applying Multi CSC
Can't access to '/system/csc/TLP/system?
Maybe I have stuffed something up?