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Computer wont recognize the NXT
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Computer wont recognize the NXT
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Rookie
Joined: Mon Oct 10, 2011 4:46 pm Posts: 15 
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 Computer wont recognize the NXTI have RobotC for Mindstorms my computer is Win7 64bit
whenever I plug in the NXT it says USB Device not recognized ANd then i go to RobotC and it says
And nothing the NXT is on I have downloaded a multitude of drivers and nothing Can anyone help? Also in the Device manager the Device status is,
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| Mon Oct 10, 2011 4:55 pm |
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Guru  Joined: Sun Nov 15, 2009 5:46 am Posts: 1023
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Re: Computer wont recognize the NXT Problem code 43 (0x2B) is: "Windows has stopped this device because it has reported problems. (Code 43)"
It means the NXT driver has reported a failure. If a driver is well written, it should log an event entry in the system event log detailing the failure. You can access the system event log by: - click start - right click "Computer", select "Manage". - On the left pane, expand "Event Viewer -> Windows Logs -> System" - Scroll down the list and look for a red "!" Error with the Source being the NXT driver. - If you just reproduced the failure, you don't need to scroll down far. Disclaimer: I have no idea if the NXT driver will write anything to the system event log. But if it does, that's where you look for it. |
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| Mon Oct 10, 2011 5:33 pm |
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Guru Joined: Sun Nov 15, 2009 5:46 am Posts: 1023
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Re: Computer wont recognize the NXT BTW, make sure you have the latest NXT driver installed. It doesn't hurt to re-install it just to make sure. Also, read this thread about NXT driver crashing.
viewtopic.php?f=52&t=3469 I am not saying you have hit this problem but if you re-install the NXT driver, you need to be careful how to install it "properly". |
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| Mon Oct 10, 2011 5:36 pm |
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Rookie
Joined: Mon Oct 10, 2011 4:46 pm Posts: 15
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Re: Computer wont recognize the NXT Just did both those things to no avail
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| Mon Oct 10, 2011 5:59 pm |
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Guru Joined: Sun Nov 15, 2009 5:46 am Posts: 1023
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Re: Computer wont recognize the NXT I assume you still have the problem code 43? If so, did you check the system event log?
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| Mon Oct 10, 2011 6:04 pm |
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Rookie
Joined: Mon Oct 10, 2011 4:46 pm Posts: 15
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Re: Computer wont recognize the NXT i did and nothing
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| Mon Oct 10, 2011 6:10 pm |
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Moderator   Joined: Wed Mar 05, 2008 8:14 am Posts: 2864 Location: Rotterdam, The Netherlands
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Re: Computer wont recognize the NXT Are the batteries in your NXT fully charged? Also try it with another cable.
- Xander _________________ | Some people, when confronted with a problem, think, "I know, I'll use threads," | and then two they hav erpoblesms. (@nedbat) | My Blog: I'd Rather Be Building Robots | ROBOTC 3rd Party Driver Suite: [Project Page] |
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| Tue Oct 11, 2011 1:41 am |
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Site Admin  Joined: Wed Jan 24, 2007 10:42 am Posts: 537
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Re: Computer wont recognize the NXT This could be a number of things... out of date USB drivers (are you using the 1.20 ones from our website?), incorrect permissions (is this a school computer that may be locked down/not an administrator), another application preventing the USB from being recognized, a bad USB cable (like Xander mentioned).
The fact that windows is reporting "Windows has stopped this device because it has reported problems." alarms me that you may need to contact LEGO regarding this one. |
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| Tue Oct 11, 2011 9:20 am |
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Guru Joined: Sun Nov 15, 2009 5:46 am Posts: 1023
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Re: Computer wont recognize the NXT I have seen a bad USB hub can do that do in case you are connecting through a USB hub.
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| Tue Oct 11, 2011 1:40 pm |
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Rookie
Joined: Mon Oct 10, 2011 4:46 pm Posts: 15
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Re: Computer wont recognize the NXT took care of it the hardware usb drivers were automatically rolled back by our school districts lock down software got the admin to simply remove the software and vol-la it worked
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| Tue Oct 11, 2011 2:48 pm |
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