Decrypt Firmware Hikvision Decrypt E3S File Decypt _cfgUpgClass ipc_db.jffs2 LiteOS.bin Download Firmware E3S http://www.hikvisioneurope.com/portal/?dir=portal/Technical%20Materials/00%20%20Network%20Camera/00%20%20Product%20Firmware/E3S%20platform%281X23G0E%2C1X21%28E%29%29 Usage python2 dec_hik.py ./digicap.dav