Gyros no longer working

We now have a total of 9 Gyros that no longer work. The brain doesn’t recognize them at all. Even worse, the brain says that there is a missing motor in ports 9-12 when in reality the issue is the gyro on port 9 stopped being recognized, causing the brain to not notice the motors as well.

In RobotC we saw an error that said Gyro was in boot mode and in-operable"

Can it really be that 9 gyros all went dead?

Any ideas for how to get these gyros to function again?

Thanks,

Cris

Hey Cris,

Sorry about the troubles. The best thing to do if you have a device that is not working correctly is to unplug all other devices from the robot brain and plug one of the problematic devices into port 1. Then power on the brain and connect it to the PC via USB and run the VEXos Utility. If the device is stuck in boot mode the the Utility will detect it and show “?” icons on ports 1, 2 and 3. You can then right click on port 1 and select “Fix issue”. This will push the latest firmware to the device. Try this procedure for all the problematic devices. But remember that every time you plug in a new device you need to power cycle the brain so that the brain will recognize the new device. Hopefully this will fix your issues. But if you still have some devices that just are not recognized by the VEXos Utility, please contact our Technical support team.

Thanks
Levi

Hi crispierry,

We are sorry that you have encountered this issue. To resolve this issue, we will first check to ensure that all devices are running the latest version of VEXos. Please download and install the VEXos Utility to your Windows or Mac computer if you have not already done so.

Then disconnect all motors and sensors from your Robot Brain, except for one suspect Gyro Sensor at a time to Port 1 on the Robot Brain. Now connect your Robot Brain to the computer with the USB Cable, turn on the Robot Brain, and then open the VEXos Utility on your computer. If any of the Gyro Sensors are out of date, they will be highlighted in orange on the VEXos Utility on your computer. Pressing the Update button will update all items to the latest version of VEXos. After each Gyro Sensor is updated, please turn off the Robot Brain, swap the Gyro Sensor for the next one, then repeat the update process.

If this does not resolve your issue, please contact VEX Technical Support at support@vex.com or by calling +1-903-453-0802 so we can provide additional assistance.

Regards,

  • Art

Thanks - I was able to get 6 of the gyros to come back alive, as well as two tocuhLEDs. 3 gyros cannot be recognized at all (same as with 2 touchLEDs). But this at least gives our tea, 6 gyros to work with.

I really hope VEX does something to fix this and also sends out a notice to teams not to throw away their sensors/devices that appear dead. Send the bad ones back to vex. They don’t just all break like this all of a sudden and we’ve had it happen more than once with devices that are fine in the end. It seems that the bootloader or something similar on the device is getting bricked.

I managed to fix some motors and Touch LEDs in the past but now I have 4 TouchLED and 3 motors that are not even recognized?

All above did not fix the problem. I fixed this by “Reset all Settings” on the brain.

Then disconnect all motors and sensors from your Robot Brain, except for one suspect Gyro Sensor at a time to Port 1 on the Robot Brain. Now connect your Robot Brain to the computer with the USB Cable, turn on the Robot Brain, and then open the VEXos Utility on your computer. If any of the Gyro Sensors are out of date, they will be highlighted in orange on the VEXos Utility on your computer. Pressing the Update button will update all items to the latest version of VEXos. After each Gyro Sensor is updated, please turn off the Robot Brain, swap the Gyro Sensor for the next one, then repeat the update process.