I mean a different sub-model (I guess...). Mine is a GT-s5830 instead of a s5830. All of the ROM updates I found made reference to the latter only so, again, I

I mean a different sub-model (I guess...). Mine is a GT-s5830 instead of a s5830. All of the ROM updates I found made reference to the latter only so, again, I decided to not take any chances while it is my primary phone. By the time I buy a new phone, I'll sure update the old one and see how it goes.