Change the IP address on the backup server to match that of the original server or add a network interface card with the IP address of the original server.
修改备份服务器上的IP地址以匹配原始服务器的IP地址，或者添加一个网络接口卡，使用原始服务器的IP地址。
If a network fails, the camera acts as a backup solution by recording video to the SD card;
如果网络出现故障，作为备用方案，摄像头则会将视频录制到SD卡中；
BACKUP the handset (preferably to memory card), then do the update.
请先备份手机内容再使用此更新。
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