How To Externally Format a MicroSD card
If you are unable to format your microSD card using the Amcrest Smart Home app you can also format it using the GUI format tool provided in the link below.
Note: A microSD adapter or USB microSD card reader will be required to read the MicroSD card on your computer. Mac users, click here.
Step 1: Download and load the GUI Format Tool.
Step 2: Insert your SD card into your computer and allow the program to read the card.
Note: Uncheck the Quick Format checkbox if you would like a full format of the SD card. Formatting the SD card will remove all information and data from the card and format the card to FAT32.
Step 3: Click Start in the FAT32 Format menu and allow the program to format the card. Click OK to continue.
Step 4: Allow the program to finish formatting the SD card. When finished, click the Close button to close the program.
The microSD card has now been properly formatted to FAT32. Remove the microSD card and insert it into your device.