This is observed using straight out of the box v2022.09.0 on NXP IMX8MP Eval kit: --------- $ sudo ../drimx8/scripts/imx/imx-usb-loader ../drimx8/images/barebox-nxp-imx8mp-evk.img [sudo] password for hcl: found i.MX8MP USB device [1fc9:0146] 4 in err=-9, last_trans=0 00 00 00 00 status failed ———— Stripping off the header gap (32K) allows the binary to load using the standard NXP uuu (Ubuntu 22.04) utility,. This further raises the question: Why have a header gap at all? The makes sense for SD card loading, but not for eMMC boot partitions where ROM expects code to start at 0. Maybe better just use a seek to put the code at the relevant position on the SD card? For instance, I am using the Rauc boot loader slot update mechanism expecting no gap thus requiring me to shave of 32k prior to shipping. Comments?? Hans Christian