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ConnectCore wi-i.mx53 module is internally bootstrapped to boot from FLASH. Additional external circuitry is required only if other user-selectable @boot options are required.The CCWMX53 module has... https://www.digi.com/support/knowledge-base/bootstrapping-options-on-connectcore-wi-i-mx53-mod Jul 06, 2017
If U-Boot in flash fails to boot @ NO output is being observed on the serial port during Power up, you can try recovery using a MicroSD Card or SD Card.For the recovery you need:*JSK Development bo... https://www.digi.com/support/knowledge-base/how-to-recover-a-connectcore-wi-i-mx53-module-usin Jul 06, 2017
KRACK Patch Status for affected Digi products@ Product Family/ProductPatch statusLocation of PatchCellularDigi Transport WR41November, 2017https://www.digi.com/support/productdetail?pid=5500@typ... https://www.digi.com/support/knowledge-base/krack-patch-status Dec 05, 2017
Pre programmed U-Boot on i.MX modules offers Ethernet = tftp, USB (memory stick), maybe slow serial upload, or µSD/SD/MMC card to program your customer U-Boot and operating system firmware into the... https://www.digi.com/support/knowledge-base/how-to-program-custom-firmware-from-microsd-sd-mmc Jul 06, 2017