What do I do if the recording can't be stopped

1. Please confirm the firmware version update to date.
2. Please switch other storage devices accomplish the request below:
    (1). We would recommend a steady 10 MB/s writing speed storage device
    (2). NTFS format in MBR partition table is required
    (3). USB hubs, card readers, FAT format, NAS or HDDs over 2 TB capacity are not supported