Troubleshooting Connecting to Web-based VEXcode GO – VEX Library

If you are having trouble connecting to your VEX GO Brain using web-based VEXcode GO (codego.vex.com), there are several steps you can take to solve the problem.

VEXcode GO Cannot Find My VEX GO Brain

Bluetooth connection dialogue box that was unable to connect to a GO Brain. The dialogue box has a message that reads codego.vex.com wants to pair but no compatible devices found. Below there is a Cancel button and a greyed out Pair button.

Problem:

No VEX GO Brains are found when trying to connect to web-based VEXcode GO.

Possible Solution Steps:

GO Battery with its connection cable plugged into the Battery Port on a GO Brain.

Ensure the VEX GO Battery is connected to the VEX GO Brain, and that the Battery is charged.

Diagram of a hand pressing down on the Brain's power button to turn it on. The button will glow green when it is turned on.

Ensure that the VEX GO Brain is powered on, and in range of your device. The button on top of the Brain will turn green when powered on.

The VEX GO Brain must be in Bluetooth range (within approximately 30 feet) of the device you are attempting to connect to.

Ensure the Brain is not currently in update mode. A Brain that is updating will blink green and red while it is updating. It will return to solid green once the update is complete. This process is shown in this animation.

Note: the update length has been shortened for the animation. An actual firmware update may take up to 2 minutes.

The VEX GO Battery Level Is Too Low to Update the VEX GO Brain

VEXcode GO Low Battery prompt, that reads The battery is too low to update the brain, charge and connect again to retry. The prompt has an OK button below.

Problem:

Your VEX GO Brain cannot connect because the firmware is out of date and needs to be updated. However, the Battery level is too low to do so.

Possible Solution:

Battery charging using a USB-C cable plugged into its charging port.

Charge the VEX GO Battery. Then, attempt to connect your VEX GO Brain to VEXcode GO.

Ensure that the charged Battery is connected to the Brain, and that the Brain is powered on before attempting to connect.

Connection to VEX GO Brain Was Lost

VEXcode GO Connection Lost prompt, that reads Communication to the VEX GO Brain was lost. Please power cycle the VEX GO Brain and reconnect to VEXcode GO. The prompt has an OK button below.

Problem:

Your VEX GO Brain lost connection to web-based VEXcode GO. A lost connection could be caused by the VEX GO Brain being carried out of range, the VEX GO Battery being dead, a disconnected wire between the VEX GO Brain and Battery, or the Brain needing to be power cycled.

Possible Solution Steps:

Diagram of a tablet and a GO Brain with a dotted line between them to indicate the Bluetooth range.

If your VEX GO Brain is out of range, bring it back into range of your device.

These articles from the VEX Library provide guidance on how to troubleshoot a wireless connection via Bluetooth to your device.

Battery charging using a USB-C cable plugged into its charging port.

If your VEX GO Battery is dead, charge the battery. Then power the VEX GO Brain on to reconnect.

GO Battery with its connection cable plugged into the Battery Port on a GO Brain.

If your VEX GO Battery is unplugged from the VEX GO Brain, replace the plug and ensure they are connected.

Diagram of a hand pressing down on the Brain's power button to turn it on. The button will glow green when it is turned on.

If your Battery is charged, and the Brain and Battery are connected to one another and in range, then power cycle the VEX GO Brain. Press and hold the button for 5 seconds, to cause the Brain to turn off. Then press the button to turn it back on.

Unable to Update Out of Date Firmware Using the Web-Based VEXcode GO

VEXcode GO Unable to Update Firmware prompt, that reads Your VEX GO Brain's firmware is out of date and needs to be updated via the VEX Classroom app before using VEXcode GO. Visit the following Help article for assistance with updating your firmware. The prompt has an Open Help button and a Close button below.

Problem:

The VEX GO Brain needs updated firmware in order to connect, but is unable to update.

Possible Solution

VEX Classroom App icon.

Use the VEX Classroom App to update your firmware. Select the “Open Help” button to go to this article for details on how to update VEX GO using the VEX Classroom App.

If you are still having trouble connecting your VEX GO Brain to VEXcode GO, see these VEX Library articles to troubleshoot your Bluetooth connection on your device.

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