I just bought a Grand, can you suggest me some custom ROMs?
you will need to root or un root your Samsung Galaxy Grand Quattro. We have a very easy to follow tutorial to let you root or unroot your phone with a simple step method here
You must have a look at the user reviews,there hasn't been any negative review about it and the firmware is stock based so not much bug must be there and so dual SIM,camera problem must not be there.
The camera app bug can be avoided to ignored by using third party app such as Camera 360 if it exists in this ROM too.
CM 10.1 is fast, but duel sim is not working.
im curnty using cm10.1. and lots of functions r not avilable in it.
only gud thin is it very fast than any rom.400 mb ram will be free evry time.
and it is the good rom for gaming. galary app is very bad. camera is not good. basicaly it look like micromax canvas.
Bro CyanogenMod 10.1 ROM not on Dual SIM.
There was a bug
Best Custom ROM’s for Samsung Galaxy Grand
[GUIDE/ROOT/CWM-TOUCH] Samsung galaxy grand Duos GT-i9082