1. Kindly choose a proper SD card according to the user manual, and make sure the SD card is U3 rating or above and made by well-known manufacturers.
2. Kindly format the SD card on the computer first and then choose ""FAT32(Default)"" on the File system, and choose ""32 kilobytes"" on Allocation unit size.
3. Kindly contact customer service for the firmware update instructions if suggestions do not help with your issue by sending emails to our email address: cs@akasotech.com