Troubleshooting Error Messages in the Classroom App for VEX GO

Using the VEX Classroom App is easy, but you may encounter minor issues from time to time. If there is a problem when connecting, updating, locating, or renaming a VEX GO Brain with the VEX Classroom App, an error message will appear. This article will help you identify the error message and describe what to do, so you can quickly resolve the issue and continue working with your robot.

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The following article will cover:


Error Message When Connecting to a GO Brain

You may encounter this error message when connecting a GO Brain with the VEX Classroom App. Use this section to identify the issue, and see how to resolve it.

VEX GO Brain fails to connect - Connection Error

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Description

  • Connection Error will display if a GO Brain is selected in the list, but fails to connect.
  • This could be caused by one of the following reasons:
    • GO Brain has been turned off while connecting.
    • GO Brain is out of Bluetooth range of the App.
    • GO Brain is connected to another device.

Solution

  • Make sure that the GO Brain is turned on, charged, and within Bluetooth range.
  • If it is connected to another device, disconnect the GO Brain from that device and reconnect with the Classroom App.

Error Messages When Updating Firmware on a GO Brain

You may encounter one of the following error messages when updating firmware on a GO Brain with the VEX Classroom App. Use this section to identify what is causing the error and how to resolve it.

Lost Bluetooth connection during an update - Update Failed

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Description

  • If the GO Brain powers off or loses connection by going out of Bluetooth range during the update process, this message will display.

Solution

  • Make sure that the GO Brain is turned on and in range, then select ‘Update’ and try again.
  • Stay close enough to be in Bluetooth range during the update.

Update failed due to App suspension - Update Failed

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Description

  • If you switch to another App, or your device locks during an update, you will get this message.

Solution

  • Unlock your device, open the Classroom App, and select ‘Update’ again.
  • Make sure to keep the Classroom App open during the update.

Update failed due to an unknown error - Update Failed

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Description

  • If your device or the GO Brain experiences an unknown problem during an update, this message will appear.

Solution

  • Power cycle the VEX GO Brain (turn it off and on again), then try the update again.

Battery level is too low to update - Low Battery

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Description

  • If you try to update a GO Brain, but the Battery level is too low, this message will display.

Solution

  • Charge the Battery, and retry the update once it is fully-charged.

If you would like additional information on updating VEX GO on your device see the Update VEX GO Using the VEX Classroom App Knowledge Base article.


Error Messages When “Updating All Devices”

There are two error messages that you may encounter when ‘Updating All Devices.’ The following section identifies what causes these errors, and describes how to resolve them while updating multiple devices simultaneously.

One or more GO Brains do not update due to low battery or being out of Bluetooth range- Update Failed

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Description

  • You will see this message if one of the following happens while bulk updating:
    • One or more of the GO Brains is out of Bluetooth range.
    • A Battery is too low to update on one or more of the GO Brains.
  • Note: The message will appear after the update, and will list only the GO Brains that failed to update. All other GO Brains updated successfully.

Solution

  • Make sure all the GO Brains listed are in Bluetooth range and fully charged.
  • Then, select ‘Update All Devices’ again. Be sure to stay in Bluetooth range during the update.

Update failed on all GO Brains due to App suspension - Update Failed

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Description

  • If you switch to another App or lock your device during a bulk update, you will get this message.
  • Note: App suspension will stop the update on all devices in a bulk update.

Solution

  • Re-open the Classroom App, select ‘Update All Devices’ again.
  • Be sure to keep the Classroom App open and do not lock your device during the update.

Error Message When Renaming a GO Brain

You may encounter this error message when renaming a GO Brain with the VEX Classroom App.

Classroom App fails to rename a GO Brain - Failed to Rename

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Description

  • This message will appear after typing in a new name if one of the following things happens while you are renaming:
    • GO Brain gets disconnected.
    • GO Brain goes out of Bluetooth range.
    • Your device locks during the renaming process.

Solution

  • Make sure you are in Bluetooth range and reconnect the GO Brain.
  • Then, try renaming again.

Error Message when Locating a GO Brain

You may encounter this error message when locating a GO Brain with the VEX Classroom App.

Classroom App fails to locate a GO Brain - Failed to Locate

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Description

  • This message will appear if the GO Brain gets disconnected or goes out of Bluetooth range while you are locating.
  • It will also appear if your device locks while you are locating.

Solution

  • Make sure you are in Bluetooth range and reconnect to the GO Brain.
  • Then, try locating again.

For general information on using the Classroom App, please see the Using the VEX Classroom App Knowledge Base article.

If you are unable to resolve your issue, please contact VEX support.