34Figure 4-24.1.3 LogoutThere are two ways for you to log out.One is from menu option:In the main menu, click shutdown button, you can see an interface is shown asbelow. See 3 2 6 H 3 2 6 H Figure 4-3.Figure 4-3There are several options for you. See 3 2 7 H 3 2 7 H Figure 4-4.Figure 4-4The other ways is to press power button on the front panel for at least 3 seconds,system will stop all operations. Then you can click the power button in the rearpanel to turn off the DVR.4.1.4 Auto Resume after Power FailureThe system can automatically backup video and resume previous working statusafter power failure.4.1.5 Replace Button BatteryPlease make sure to use the same battery model if possible.We recommend replace battery regularly (such as one-year) to guarantee systemtime accuracy.4.2 Recording Operation