Cortex does not want to work :(

[JMS95]

Hello,

Once more, I need the forums help. The cortex I am using is giving me some problems. When I turn it on, the lights stay red, I thought it was the battery that was dead, but when I changed it, nothing happened. Even when I charged all the batteries. I have tried conecting the cortex to the joystick and computer using the doble USB cable and when I do, the joystick also flashes as if the battery is dead, and the computer does not recognize the cortex, so I cant even try and download the programs or master code. My team mates told me that it was hit by accident while pumping air to the reservoir. But since I was not present during the accident, I dont know if this is the cause of my troubles.

Is it the end for my cortex? Is it fixable?? Should I get a new cortex???

[e-LEMON-ators_5119z]

i have 2 cortexs for my team, one of them is exactly the same as the problem you describe …

i have tried everything and i cant fix it, if you find a fix please msg me with it …

[fretless_kb]

Did either of you find this reference and try this?

http://www.robotc.net/support/vex/WebHelpCortex/index.htm#page=robotc_interface/master_firmware/vex/VEX_2.0_Cortex_-_Download_Master_Firmware.htm

Cheers Kb

[JMS95]

Did either of you find this reference and try this?

http://www.robotc.net/support/vex/WebHelpCortex/index.htm#page=robotc_interface/master_firmware/vex/VEX_2.0_Cortex_-_Download_Master_Firmware.htm

Cheers Kb

I havent, so i will try it when I get home.

[e-LEMON-ators_5119z]

yes i tried this when i first had the problem, but no change

thanks

[JMS95]

Did either of you find this reference and try this?

http://www.robotc.net/support/vex/WebHelpCortex/index.htm#page=robotc_interface/master_firmware/vex/VEX_2.0_Cortex_-_Download_Master_Firmware.htm

Cheers Kb

I think I made progress. I turned the cortex on while holding the configuration button, and when I tried to download the master code to the cortex, its asking me for an access code. What should I do?

[fretless_kb]

That’s a new one to me, The Pin should put the Cortex in Boot loader mode and the master F/W should just load, no access code should be required.

I never did see a reference to your programming platform. are you using Easy C or Robot C? and What Version?

There’s also a utility here called The VEXnet Firmware Upgrade Utility :
https://vexforum.com/wiki/index.php/Software_Downloads

Which might restore your Cortex from the state it is in.

Keep us informed as too the state of things and we will try to help.

Cheers Kb

[jpearman]

I think I made progress. I turned the cortex on while holding the configuration button, and when I tried to download the master code to the cortex, its asking me for an access code. What should I do?

Call VEX tech support. There is some type of “code” that can only be programmed by VEX, something to do with the WiFi and making sure every cortex is unique I think.

[JMS95]

That’s a new one to me, The Pin should put the Cortex in Boot loader mode and the master F/W should just load, no access code should be required.

I never did see a reference to your programming platform. are you using Easy C or Robot C? and What Version?

There’s also a utility here called The VEXnet Firmware Upgrade Utility :
https://vexforum.com/wiki/index.php/Software_Downloads

Which might restore your Cortex from the state it is in.

Keep us informed as too the state of things and we will try to help.

Cheers Kb

I am using the latest version of EasyC. I’m gonna call tech support to provide me the codes that I need. Thanks for all the help!

[JMS95]

Call VEX tech support. There is some type of “code” that can only be programmed by VEX, something to do with the WiFi and making sure every cortex is unique I think.

Will do! Do they accept calls in holidays? Im asking since Monday is Presidents day and I dont want to end up in the voice mail to get charged for a long distance call.