The format for optimal usage might be different based on the devices. To ensure the proper work of the card, please do the formatting before applying to the device.
Please identify that the video recording time is set to limit, instead of fixed time. If card format is FAT32, the recording would be stopped as 4GB of recording is reached because a single file cannot exceed 4GB. This problem may be solved as long as card format is changed to NTFS or exFAT if the two formats are supported by the machine.
Please verify that the write-protect lock of the card is off. If the problem persists, the memory card may be faulty. Please contact customer service personnel for assistance.
Please change another card reader to shoot machine trouble, if you still have questions please contact customer service for help. RMA@teamgroup.com.tw