UUU CONSOLE: sudo ./uuu/uuu -v custom_script-mek.auto uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.43-8-g3711e0b Build in config: Pctl Chip Vid Pid BcdVersion ================================================== SDPS: MX8QXP 0x1fc9 0x012f [0x0002..0xffff] SDPS: MX8QM 0x1fc9 0x0129 [0x0002..0xffff] SDPS: MX8DXL 0x1fc9 0x0147 SDPS: MX28 0x15a2 0x004f SDPS: MX815 0x1fc9 0x013e SDPS: MX865 0x1fc9 0x0146 SDP: MX7D 0x15a2 0x0076 SDP: MX6Q 0x15a2 0x0054 SDP: MX6D 0x15a2 0x0061 SDP: MX6SL 0x15a2 0x0063 SDP: MX6SX 0x15a2 0x0071 SDP: MX6UL 0x15a2 0x007d SDP: MX6ULL 0x15a2 0x0080 SDP: MX6SLL 0x1fc9 0x0128 SDP: MX7ULP 0x1fc9 0x0126 SDP: MXRT106X 0x1fc9 0x0135 SDP: MX8MM 0x1fc9 0x0134 SDP: MX8MQ 0x1fc9 0x012b SDPU: SPL 0x0525 0xb4a4 [0x0000..0x04ff] SDPV: SPL1 0x0525 0xb4a4 [0x0500..0x9998] SDPU: SPL 0x0525 0xb4a4 [0x9999..0x9999] SDPU: SPL 0x3016 0x1001 [0x0000..0x04ff] SDPV: SPL1 0x3016 0x1001 [0x0500..0x9998] FBK: 0x066f 0x9afe FBK: 0x066f 0x9bff FB: 0x0525 0xa4a5 FB: 0x18d1 0x0d02 FB: 0x3016 0x0001 Wait for Known USB Device Appear... New USB Device Attached at 1:4 1:4>Start Cmd:FB: ucmd setenv fastboot_dev mmc 1:4>Okay (0.004s) 1:4>Start Cmd:FB: ucmd setenv mmcdev ${emmc_dev} 1:4>Okay (0.004s) 1:4>Start Cmd:FB: ucmd mmc dev ${emmc_dev} 1:4>Okay (0.179s) 1:4>Start Cmd:FB: flash bootloader flash_mmc_mek.bin 0x400000001:4>Okay (0.241s) 1:4>Start Cmd:FB: ucmd setenv fastboot_buffer ${loadaddr} 1:4>Okay (0.004s) 1:4>Start Cmd:FB: download -f test_app_priv.bin 1:4>Okay (0.039s) 1:4>Start Cmd:FB[-t 20000]: ucmd fatwrite mmc ${emmc_dev}:1 ${fastboot_buffer} test_app_priv.bin ${fastboot_bytes} 1:4>Fail (0.006s) ================================================================================================================= Uboot CONSOLE: => printenv emmc_dev loadaddr fastboot_bytes emmc_ack emmc_dev=0 loadaddr=0x80280000 ## Error: "fastboot_bytes" not defined ## Error: "emmc_ack" not defined => version U-Boot 2020.04 (Dec 06 2021 - 22:59:54 -0500) aarch64-none-elf-gcc (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10)) 9.2.1 20191025 GNU ld (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10)) 2.33.1.20191209