# Thor attempted to re-flash the firmware using a USB drive error **URL:** \ **Category:** Jetson Thor\ **Tags:** usb, firmware-tools\ **Created:** [January 16, 2026, 4:04am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740 "2026-01-16T04:04:06Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![2359942348](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@2359942348](https://forums.developer.nvidia.com/u/2359942348)\ **Post date:** [January 16, 2026, 4:04am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/1 "2026-01-16T04:04:06Z")
The following error occurred when thor attempted to re-flash the firmware using a USB drive: EFI stub: Booting Linux Kernel.. EFI stub: Loaded initrd from LINUX\_EFI INITRD\_MEDIA\_GUID device path EFI stub: Measured initrd data into PCR 9 EFI stub: Using DTB from configuration table EFI stub: Exiting boot seruices… ---
**Author:** ![whitesscott](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@whitesscott](https://forums.developer.nvidia.com/u/whitesscott)\ **Post date:** [January 16, 2026, 5:08am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/3 "2026-01-16T05:08:10Z")
This might be a possible solution. [Re-enable USB stick installation](https://docs.nvidia.com/jetson/agx-thor-devkit/user-guide/latest/twa_display_handoff.html) 1. Turn on the Jetson AGX Thor Developer Kit by pressing the power button (the middle button in the row). 2. While on the NVIDIA logo screen (when a display is attached) or the pre-boot options screen (in headless mode), hit Esc key repeatedly to enter into the UEFI setup menu. 3. Select Device Manager by hitting ↑ (up) and ↓ (down) keys, and press Enter key. 4. Select NVIDIA Configuration by hitting ↑ (up) and ↓ (down) keys, and press Enter key. 5. Select Boot Configuration by hitting ↑ (up) and ↓ (down) keys, and press Enter key 6. Scroll to the next screen by hitting ↓ (down) key repeatedly and select SOC Display Hand-Off Mode, then press Enter key. 7. Change the mode to Auto by hitting ↓ (down) key and press Enter key. (The original setting should have been Never) 8. Continue to select the next item SOC Display Hand-Off Method and set to efifb by hitting ↓ (down) key and press Enter key. Please be sure to change both items. 6 & 7 SOC Display Hand-Off Mode 8 SOC Display Hand-Off Method 1. Press F10 key to save the changes. Press y key to confirm the change. 2. Press Esc key multiple times to exit to the top menu of UEFI setup menu. 3. Select Reset by hitting ↑ (up) and ↓ (down) keys, and press Enter key. ---
**Author:** ![2359942348](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@2359942348](https://forums.developer.nvidia.com/u/2359942348)\ **Post date:** [January 16, 2026, 5:45am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/4 "2026-01-16T05:45:51Z")
I’m sorry to tell you that I have already modified the two parameters you mentioned, but the same problem still occurs after resetting. ---
**Author:** ![2359942348](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@2359942348](https://forums.developer.nvidia.com/u/2359942348)\ **Post date:** [January 16, 2026, 6:18am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/5 "2026-01-16T06:18:22Z")
![20260116-141748](https://global.discourse-cdn.com/nvidia/original/4X/2/9/2/29275506fde011bebc205d55e47beac285aa286c.jpeg) ![20260116-141756](https://global.discourse-cdn.com/nvidia/original/4X/1/2/5/125a97ba8e688c2697e86742f07585f3a2c18b9e.jpeg) ---
**Author:** ![kayccc](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/kayccc/32/14043_2.png) [@kayccc](https://forums.developer.nvidia.com/u/kayccc)\ **Post date:** [February 4, 2026, 6:10am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/7 "2026-02-04T06:10:11Z")
Is this still an issue to support? Any result can be shared? ---
**Author:** ![KevinFFF](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/kevinfff/32/15508_2.png) [@KevinFFF](https://forums.developer.nvidia.com/u/KevinFFF)\ **Post date:** [February 4, 2026, 6:50am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/9 "2026-02-04T06:50:41Z")
Hi 2359942348, Are you using the devkit or custom board for Thor? What’s the Jetpack version in use? The current log from the image you shared looks good to me. Please share the full log as file here for further check. ---
**Author:** ![coldbeans](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@coldbeans](https://forums.developer.nvidia.com/u/coldbeans)\ **Post date:** [March 1, 2026, 10:15pm UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/11 "2026-03-01T22:15:51Z")
Hi, I am experiencing the same issue. Is there any update on this? I have tried flashing both r38.4 and r38.2 but saw no success. ---
**Author:** ![KevinFFF](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/kevinfff/32/15508_2.png) [@KevinFFF](https://forums.developer.nvidia.com/u/KevinFFF)\ **Post date:** [March 3, 2026, 8:32am UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/12 "2026-03-03T08:32:44Z")
Hi coldbeans, Are you using the devkit or custom board for Thor? Could you share the full logs(both flash log and serial console log) for further check? ---
**Author:** ![coldbeans](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@coldbeans](https://forums.developer.nvidia.com/u/coldbeans)\ **Post date:** [March 3, 2026, 1:41pm UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/13 "2026-03-03T13:41:36Z")
Hi, thank you for the reply. I managed to solve the issue on my end by instead flashing with the [SDK manager.](https://docs.nvidia.com/sdk-manager/install-with-sdkm-jetson/index.html) The thor didn’t get detected automatically, and I had to enter [force recovery mode](https://docs.nvidia.com/jetson/agx-thor-devkit/user-guide/latest/hardware_layout.html) for it to work. Hopefully this can helps. ---
**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\ **Post date:** [March 17, 2026, 1:41pm UTC](https://forums.developer.nvidia.com/t/thor-attempted-to-re-flash-the-firmware-using-a-usb-drive-error/357740/14 "2026-03-17T13:41:48Z")
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