topic Re: FRDM-IMX93 - UUU encounters LIBUSB error in i.MX Processors

FRDM-IMX93 - UUU encounters LIBUSB error

dmarks_ls — Sun, 26 Oct 2025 00:37:12 GMT

Hi there,

I'm hoping this is a newbie problem that has a newbie solution. I'm trying to flash a FRDM-IMX93 board using the latest UUU (Release uuu_1.5.233), and whether I use a Windows 11 host or a Linux (Ubuntu 24.04.03 LTS) host, I always get a LIBUSB error immediately.

On my FRDM-IMX93, I have a chip marked "MIMX9352 CVVXMAB 1P87F SBBD2427F". Breaking down the part number, it's an IMX93 with industrial temp (C), 11x11 BGA (VV), no add'l info (X), 1.7 GHz (M), no special fuse (A), and silicon rev 2.0 (B). Based on other docs I've seen (e.g. Digi), xxxxxxB indicates step A1 silicon, while xxxxxxA would indicate step A0 silicon. Thus, I don't appear (hopefully) to have the issue of the latest UUU not supporting the early-rev A0 silicon.

I created my repo:

repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-walnascar -mimx-6.12.34-2.1.0.xml

I set up my build:

DISTRO=fsl-imx-xwayland MACHINE=imx93-11x11-lpddr4x-frdm source imx-setup-release.sh -b build

And I ran my build:

bitbake imx-image-multimedia

And three hours later, I had a successful build (just warnings about ftp.gnu.org mirrors and TMPDIR usage).

So I went into the images directory and tried to program the FRDM-IMX93 board. I flipped the DIP switches to 0001 (serial bootloader, Cortex-A55), and I verified that I had a connected board:

dmarks@Perseus:~/yocto/frdm-imx93/build/tmp/deploy/images/imx93-11x11-lpddr4x-frdm$ sudo uuu -lsusb uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.233-0-g79ce7d2 Connected Known USB Devices Path Chip Pro Vid Pid BcdVersion Serial_no ==================================================================== 1:12 MX93 SDPS: 0x1FC9 0x014E 0x0001 393792579FA24D4E

And I issued the UUU command to flash the device (with verbosity on), and got this:

dmarks@Perseus:~/yocto/frdm-imx93/build/tmp/deploy/images/imx93-11x11-lpddr4x-frdm$ sudo uuu -V -b sd u-boot-sd-2025.04-r0.bin uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.233-0-g79ce7d2 Build in config: Pctl Chip Vid Pid BcdVersion Serial_No ================================================== 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 SDPS: MX8ULP 0x1fc9 0x014a SDPS: MX8ULP 0x1fc9 0x014b SDPS: MX93 0x1fc9 0x014e SDPS: MX91 0x1fc9 0x0159 SDPS: MX95 0x1fc9 0x015d SDPS: MX95 0x1fc9 0x015c SDPS: MX943 0x1fc9 0x0027 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] SDPV: SPL1 0x1fc9 0x0151 [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 FBK: 0x1fc9 0x0153 FB: 0x0525 0xa4a5 FB: 0x18d1 0x0d02 FB: 0x3016 0x0001 FB: 0x1fc9 0x0152 FB: 0x0483 0x0afb Run built-in script: uuu_version 1.2.39 # @_flash.bin | bootloader # @_image [_flash.bin] | image burn to emmc, default is the same as bootloader # This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ SDP: boot -f u-boot-sd-2025.04-r0.bin # This command will be run when ROM support stream mode # i.MX8QXP, i.MX8QM SDPS: boot -f u-boot-sd-2025.04-r0.bin # These commands will be run when use SPL and will be skipped if no spl # SDPU will be deprecated. please use SDPV instead of SDPU # { SDPU: delay 1000 SDPU: write -f u-boot-sd-2025.04-r0.bin -offset 0x57c00 SDPU: jump # } # These commands will be run when use SPL and will be skipped if no spl # if (SPL support SDPV) # { SDPV: delay 1000 SDPV: write -f u-boot-sd-2025.04-r0.bin -skipspl SDPV: jump # } FB: ucmd setenv fastboot_dev mmc FB: ucmd setenv mmcdev ${sd_dev} FB: ucmd mmc dev ${sd_dev} FB: flash bootloader u-boot-sd-2025.04-r0.bin FB: Done Wait for Known USB Device Appear... New USB Device Attached at 1:12-393792579FA24D4E 1:12-393792579FA24D4E>Start Cmd:SDPS: boot -f u-boot-sd-2025.04-r0.bin 1:12-393792579FA24D4E>Fail HID(W): LIBUSB_ERROR_IO (-1)(0.006s)

Rebooting the FRDM board did nothing to change this. Also, switching to a Windows host did nothing to change this.

C:\>uuu -lsusb uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.233-0-g79ce7d2 Connected Known USB Devices Path Chip Pro Vid Pid BcdVersion Serial_no ==================================================================== 2:1111 MX93 SDPS: 0x1FC9 0x014E 0x0001 393792579FA24D4E C:\>uuu -b sd u-boot-sd-2025.04-r0.bin uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.233-0-g79ce7d2 Success 0 Failure 1 2:1111-39379 1/ 1 [HID(W): LIBUSB_ERROR_PIPE (-9) ] SDPS: boot -f u-boot-sd-2025.04-r0.bin

So, in summary, I'm 99% sure I have A1 silicon on my FRDM-IMX93, I built my image using the commands above on a supported Linux host, I've verified the presence of the serial downloader, but UUU just refuses to run on Linux or Windows, and the error message is rather unhelpful.

Ideas?

Dana M.

Re: FRDM-IMX93 - UUU encounters LIBUSB error

Harvey021 — Mon, 27 Oct 2025 08:10:09 GMT

Hi,

Have you tried to find a bootloader file like - imx-boot-imx93-11x11-lpddr4x-frdm-sd.bin-flash_singleboot?

if so, try the way: uuu -b sd imx-boot-imx93-11x11-lpddr4x-frdm-sd.bin-flash_singleboot

Regards

Harvey

Re: FRDM-IMX93 - UUU encounters LIBUSB error

dmarks_ls — Mon, 27 Oct 2025 15:52:40 GMT

OK, so that appeared to succeed (though it doesn't exit, it just loads and sits there):

C:\>uuu -b sd imx-boot-imx93-11x11-lpddr4x-frdm-sd.bin-flash_singleboot uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.233-0-g79ce7d2 Success 0 Failure 0 2:1111-39379 1/ 1 [=================100%=================] SDPS: boot -f imx-boot-imx93-11x11-lpddr4x-frdm-sd.bin-flash_singleboot

And I do see U-Boot come up on the debug port (log attached). So UUU is at least functional. It apparently doesn't matter whether I have an SD card inserted or not; presumably it's booting from internal RAM.

For this Yocto build and the FRDM-IMX93, what is the correct command line to fully reprogram the eMMC flash with U-Boot and a root filesystem image? (I've attached a directory listing of all of my Yocto build artifacts/images.)

Re: FRDM-IMX93 - UUU encounters LIBUSB error

Harvey021 — Tue, 28 Oct 2025 01:02:54 GMT

You can use the command line:

uuu -b emmc_all imx-boot-imx93-11x11-lpddr4x-frdm-sd.bin-flash_singleboot imx-image-multimedia-imx93-11x11-lpddr4x-frdm.rootfs-20251021183432.wic.zst

The UUU Guide with more details can help for you.

Regards

Harvey

Re: FRDM-IMX93 - UUU encounters LIBUSB error

dmarks_ls — Tue, 28 Oct 2025 21:27:08 GMT

Thank you, that command worked on my FRDM board. I was unclear as to what the correct U-Boot image was to use for the bootloader; I had mistakenly thought it was "u-boot-sd-2025.04-r0.bin". Appreciate the help.

Dana M.

Re: FRDM-IMX93 - UUU encounters LIBUSB error

Siddhesh_Nayak — Mon, 18 May 2026 17:28:27 GMT

Hi @Harvey021 ,

I have been attempting to flash a Yocto image for the i.MX93 FRDM board along with a custom recipe, but I’ve been unsuccessful so far.

To rule out any issues with my custom build, I tried using the demo images available on the NXP portal; however, I am encountering the same problem.

During the flashing process, I consistently see the following error:

2:3->Fail HID(W): LIBUSB_ERROR_TIMEOUT (-7) (20.02s)

I also followed the commands you suggested earlier as a potential solution, but I’m still unable to flash the image, and the process fails with the same timeout error.

C:\_ddm\Tools\UUU>uuu -V -b sd_all "C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot" "C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-image-full-imx93frdm.rootfs.wic.zst" uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.243-0-g230f1b1 Build in config: Pctl Chip Vid Pid BcdVersion Serial_No ================================================== 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 SDPS: MX8ULP 0x1fc9 0x014a SDPS: MX8ULP 0x1fc9 0x014b SDPS: MX93 0x1fc9 0x014e SDPS: MX91 0x1fc9 0x0159 SDPS: MX95 0x1fc9 0x015d SDPS: MX95 0x1fc9 0x015c SDPS: MX943 0x1fc9 0x0027 SDPS: MX952 0x1fc9 0x0028 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] SDPV: SPL1 0x1fc9 0x0151 [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 FBK: 0x1fc9 0x0153 FB: 0x0525 0xa4a5 FB: 0x18d1 0x0d02 FB: 0x3016 0x0001 FB: 0x1fc9 0x0152 FB: 0x0483 0x0afb Run built-in script: uuu_version 1.4.149 # @_flash.bin | bootloader, which can extract from wic image # @_image [_flash.bin] | wic image burn to emmc. # This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ SDP: boot -f C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot -scanlimited 0x800000 # This command will be run when ROM support stream mode # i.MX8QXP, i.MX8QM SDPS: boot -scanterm -f C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot -scanlimited 0x800000 # These commands will be run when use SPL and will be skipped if no spl # SDPU will be deprecated. please use SDPV instead of SDPU # { SDPU: delay 1000 SDPU: write -f C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot -offset 0x57c00 -scanlimited 0x800000 SDPU: jump -scanlimited 0x800000 # } # These commands will be run when use SPL and will be skipped if no spl # if (SPL support SDPV) # { SDPV: delay 1000 SDPV: write -f C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot -skipspl -scanterm -scanlimited 0x800000 SDPV: jump -scanlimited 0x800000 # } FB: ucmd setenv fastboot_dev mmc FB: ucmd setenv mmcdev ${sd_dev} FB: ucmd mmc dev ${sd_dev} FB: flash -raw2sparse all C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-image-full-imx93frdm.rootfs.wic.zst/* FB: flash -scanterm -scanlimited 0x800000 bootloader C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot FB: done Wait for Known USB Device Appear... New USB Device Attached at 2:3- 2:3->Start Cmd:SDPS: boot -scanterm -f C:\Users\nxf80713\Downloads\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\LF_v6.6.36-2.1.0_images_FRDM_3.0_i.MX93\imx-boot-imx93frdm-ecc.bin-flash_singleboot -scanlimited 0x800000 2:3->Fail HID(W): LIBUSB_ERROR_TIMEOUT (-7)(20.02s) libusb: warning [libusb_exit] device 1.29 still referenced libusb: warning [libusb_exit] device 2.10 still referenced libusb: warning [libusb_exit] device 2.0 still referenced libusb: warning [libusb_exit] device 2.31 still referenced libusb: warning [libusb_exit] device 2.33 still referenced libusb: warning [libusb_exit] device 2.34 still referenced libusb: warning [libusb_exit] device 1.28 still referenced libusb: warning [libusb_exit] device 1.0 still referenced