# After last update i need to reconfigure usb port **URL:** \ **Category:** General\ **Created:** [February 27, 2024, 3:26pm UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818 "2024-02-27T15:26:08Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Tarekastra](https://forum.realdash.net/letter_avatar_proxy/v4/letter/t/bb73d2/32.png) [@Tarekastra](https://forum.realdash.net/u/Tarekastra)\ **Post date:** [February 27, 2024, 3:26pm UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/1 "2024-02-27T15:26:09Z")
Jani, Today after updating to 2.3.7 , i start to have issue regarding port number. I must open garage and select realdash can and change the port number to start communicate with Aduino. Can you please check ? Regards ---
**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\ **Post date:** [March 4, 2024, 7:01am UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/2 "2024-03-04T07:01:09Z")
2.3.7 has an improved support for multiple simultaneous USB devices on Android. Send me a debug log: [How to send a debug log - General / Frequently Asked Questions - RealDash Forum](https://forum.realdash.net/t/how-to-send-a-debug-log/949) ---
**Author:** ![Tarekastra](https://forum.realdash.net/letter_avatar_proxy/v4/letter/t/bb73d2/32.png) [@Tarekastra](https://forum.realdash.net/u/Tarekastra)\ **Post date:** [March 8, 2024, 7:07pm UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/3 "2024-03-08T19:07:20Z")
Hi Jani, I have sent 3 debug files. Size around 110 k. Also, i have sent another one after configure the usb port so it can communicate with arduino. Regards ---
**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\ **Post date:** [March 11, 2024, 7:07am UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/4 "2024-03-11T07:07:04Z")
I see what the problem is. After the update, the USB device name must have a match when attempting to connect. You have ‘unnamed’ USB device, identified by its internal link, like: /dev/bus/usb/004/010 Problem with this name is that this link may change over the reboots when USB device hardware is allocated. You have a device with name /dev/bus/usb/004/010, and next boot name may be /dev/bus/usb/004/011, hence the device is not found when attempting to connect. We could add a failsafe, that device is selected by VID/PID if name does not match, but this will introduce another problem; when using multiple USB devices of same type. ---
**Author:** ![Tarekastra](https://forum.realdash.net/letter_avatar_proxy/v4/letter/t/bb73d2/32.png) [@Tarekastra](https://forum.realdash.net/u/Tarekastra)\ **Post date:** [March 11, 2024, 11:10am UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/5 "2024-03-11T11:10:08Z")
Thanks Jani, Could i go back to previous version? It doesn’t have this issue. Regards ---
**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\ **Post date:** [March 11, 2024, 3:57pm UTC](https://forum.realdash.net/t/after-last-update-i-need-to-reconfigure-usb-port/4818/6 "2024-03-11T15:57:29Z")
We do not store old versions. I can build you a test version instead. Send me an email to [contact@realdash.net](mailto:contact@realdash.net) for a download link.