Samsung has just started pushing the official Android 4.1.2 Jelly Bean update for Metro PCS Samsung Galaxy S3 variants SCH-R530M. The latest 4.1.2 software build version is JZO54K.R530MVQAMB2 or with a new baseband of R530MVQAMB2. The 4.1.2 brings additional enhancement “camera 1.5” which makes a huge differences to the picture details and quality, all other stuff is for you to discover since changelog is not available. This update is push via OTA (over the air) and might also made available thru Kies, since we have been spotted this R530MVQAMB2 4.1.2 stock firmware in Samsung Kies server a few days ago. To check it out via OTA,just hit your device Settings>>About>>Check for Update.
If you already updated your Metro PCS Galaxy S3 devices to this Android 4.1.2 Jelly Bean, just do share to us how this update performs.