Overview of the file system

XBee Smart Modem firmware versions ending in 0B (for example, 1130B, 100B, 3100B) and later include support for storing files on an internal 1 MB SPI flash.

CAUTION! You need to format the file system if upgrading a device that originally shipped with older firmware. You can use XCTU, AT commands or MicroPython for that initial format or to erase existing content at any time.

Note To use XCTU with file system, you need XCTU 6.4.0 or newer.

See ATFS FORMAT confirm and ensure that the format is complete.