Samsung just released some new SGS3 roms for Asia and Europe, XXALF6, XXALF5 and ZSALF1, built in the mid June. sources claimed smart stay and smoothness are fine tuned


I9300ZSALF1 firmware details:
pda: ZSALF1
csc: OZSALF1 (open, Hong Kong, Taiwan)
modem: XXLEF
updated: 2012-06-15

I9300XXALF5 firmware details:
pda: XXALF5
csc: EURALE3 (Europe)
modem: XXLF5
updated: 2012-06-13

I9300XXALF6 firmware details:
pda: XXALF6
csc: OLBALE6 (open, South East Asia)
modem: DXLEA
updated: 2012-06-14


download links:
I9300ZSALF1
I9300XXALF5
I9300XXALF6