# Error occurred after updating the hardware accessories

**URL:** <https://forum.hello-robot.com/t/error-occurred-after-updating-the-hardware-accessories/1369>\
**Category:** Ask\
**Created:** [July 23, 2025, 4:23am UTC](https://forum.hello-robot.com/t/error-occurred-after-updating-the-hardware-accessories/1369 "2025-07-23T04:23:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Hotcat](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/hotcat/32/1008_2.png) [@Hotcat](https://forum.hello-robot.com/u/Hotcat)\
**Post date:** [July 23, 2025, 4:23am UTC](https://forum.hello-robot.com/t/error-occurred-after-updating-the-hardware-accessories/1369/1 "2025-07-23T04:23:21Z")

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We recently received a shipment from Hello Robot Inc. for the replacement of a broken rubber band on our Stretch RE-2 robot, along with additional hardware accessories for an upgrade. During the process of formatting the robot and installing a new operating system and firmware, we encountered the following issues.

 ![p-1](https://canada1.discourse-cdn.com/flex030/uploads/hello_robot2/original/2X/e/ed6c86131a383fdf2f2f45ab5b5feb6df395deed.png)

However, we encountered the same issue as described by the user below.

> [@Firmware update fail after upgrade to ubuntu 22.04/humble](https://forum.hello-robot.com/t/firmware-update-fail-after-upgrade-to-ubuntu-22-04-humble/813):
>
> When I upgraded a stretch2 to ubuntu 22.04 and humble, the install scripts worked fine but then in the next step the firmware update failed. the arm and left wheel seem to not be recognized and i am not sure that the devices are mapped correctly. This is the output from REx\_firmware\_updater.py --install Collecting information... [ERROR] [hello-motor-arm]: SerialException(2): could not open port /dev/hello-motor-arm: [Errno 2] No such file or directory: '/dev/hello-motor-arm' [WARNING] [hello-m…

Additionally, the following results were obtained after performing the same steps as outlined in the response to the previous question.

Please let us know what additional information we should provide.

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**Author:** ![bshah](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/bshah/32/55_2.png) [@bshah](https://forum.hello-robot.com/u/bshah)\
**Post date:** [July 23, 2025, 4:29am UTC](https://forum.hello-robot.com/t/error-occurred-after-updating-the-hardware-accessories/1369/2 "2025-07-23T04:29:38Z")

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Hi @Hotcat, are the issues you’re seeing here coming from the same robot as in the following thread?

> [@Issues After SE3 Hardware Upgrade: Arm Drops, Gripper Unresponsive, Possible Missing Stretch-RE2 Configuration Data](https://forum.hello-robot.com/t/issues-after-se3-hardware-upgrade-arm-drops-gripper-unresponsive-possible-missing-stretch-re2-configuration-data/1365):
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> We recently purchased the hardware upgrade accessory to convert our Stretch-RE2 robot to the SE3 configuration. As part of the process, we sent our robot to Hello Robot for the upgrade and repair. After receiving the robot back, we formatted and reinstalled the system from scratch. Initially, we encountered a persistent issue where the D405 camera was not recognized. After repeated troubleshooting, we discovered that the D405 cable was disconnected during return shipping. Once reconnected, the …

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<div class="post-metadata">

**Author:** ![Hotcat](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/hotcat/32/1008_2.png) [@Hotcat](https://forum.hello-robot.com/u/Hotcat)\
**Post date:** [July 23, 2025, 5:40am UTC](https://forum.hello-robot.com/t/error-occurred-after-updating-the-hardware-accessories/1369/3 "2025-07-23T05:40:05Z")

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> [@bshah](#):
>
> Hi @Hotcat, are the issues you’re seeing here coming from the same robot as in the following thread?

Yes, it’s the same robot. We’re currently working on upgrading the Stretch-RE2 version by adding some hardware accessories.