Commzero 3.494 super doctor 3 box firmware 1.51H news
 

New features:
1:[MTK] MT6253 auto UID decrypt supported
2:[MTK] Add a new identification method for Chip-UID-Protect
3:[MTK] MT6253 start command protocol improved
4:[SPD] Added new SC6600L-COM Boot
5:[SPD] New Speardtrum USB driver supported
6:New protect algorithm for all commzero private file types

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http://www.mtk-box.com/Downloads.asp