ZSEMB1 for Galaxy S3 is released a few days ago. for some reasons, ZSEMA1 was pulled out by Samsung in Hong Kong. insiders claimed ZSEMA1 was buggy and may cause problems like sudden reboot

firmware details:
pda: ZSEMB1
csc: OZSEMB1 (Hong Kong, Taiwan)
date: 2 Feb 2013


download link:
link 1 (by sammobile)