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50WJPT Fiber no longer connecting to computer. USB Error

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2023-04-13

Hey, I’ve been a CO2 laser user now for just over a year, and recently received my 50WJPT Fiber… All was going great until today. Long story short, a customer happened to somehow disconnect the USB cable, or step on it, or something as the laser was running a project as he was leaving. I went back to the machine and just assumed it was complete and went to load the next project and Lightburn said that the Laser was disconnected… So, I unplugged the USB and reconnected it and I got the following error:

 

Windows has stopped this device because it has reported problems. (Code 43)
A request for the USB device descriptor failed.

 

Having seen that before with the CO2, I re-ran the setup to reinstall the drivers and that didn’t work. I removed the cables in question and replaced with different ones, and that didn’t work… I uninstalled, reinstalled Lightburn, uninstalled the drivers, ran windows update, restarted a million times and that didn’t work… So, I opened up the laser, and plugged a USB-Printer cable directly to the controller board, and that didn’t work… So now I’m 100% stumped. I’ve tried every USB port on this computer, I’ve tried absolutely everything I can think of and I cannot get the machine to speak to the computer. I don’t have a laptop to try so I’m gonna have to figure this out, but I need some assistance I think…

Can anyone point me in the right direction?

 

thanks in advance
C

    • Liam

      2023-04-14
      I also had problems with a stable USB connection at the beginning. The connection was constantly being re-established and then severed again shortly afterwards. Cables and plugs brought no solution. Then I opened the laser housing - but first unplugged it - . I then reinstalled the controller board galvanically separated from the bracket. To do this, I reinstalled the controller with plastic screws and spacers so that there is no conductive connection between the controller and the bracket. That solved the problem in my case.
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