Notice:
This note is for all 2013 version cameras. The version below contains a "x", for example x.7.15, that means 1.7.15, 2.7.15, or 3.7.15.

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x.7.19 (1.7.19, 2.7.19 and 3.7.19)
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1. Fix motion detection alarm sensitivity unsaved problem.
2. Improve the surface and resolve the bugs for no snaphot for vistors
3. Fix BUG of save the <null> password for Non-admin user
4. Support VLC video player
5. Remove the Device Model from About page
6. Add Arabic language support
7. Update French, English, Japanese language
8. Fix error desciption of vertical and horizontal reversal
9. Save horizontal reversal image afte rebooting

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From x.7.15 to x.7.17
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1. Added front power indicator LED manually turn-off functionality
2. Resolved email alert malfunction when applying all of the 4 recipient email addresses
3. Resolved bug when using 21.cn assender email address
4. Resolved unsigned plug-in issue
5. Improved alarm schedule
6. Added powerline frequency witch function