 Hey, guys, this is Kevin. Today, I'm going to work on a full-tongue S. And we're going to fix this problem, which is you have a file, and it will fail to open file. It'll start with one file, then all of the file will be looked like this, and your printer is useless. So first thing to try is, of course, it's power off and power on the printer. And the second thing to try is delete all the files from your USB drive and receive. If that doesn't work, number three is use a different USB stick. And number four is reinstall the full-tongue workshop. And make sure you have the latest version. And number five, we're going to do a firmware update. So we go to nycubic.com, and go to support, and the software drivers and videos, and the full-tongue S. Scroll down. You're going to see the newest version of firmware. And then click this download button. If you click here, nothing will happen. Just click download, and compress and put those two files on your USB drive. Plug in the USB drive, and you're going to see the file just like a regular file. Then you'll go to click the 502 bin. And it looks like you'll go printing, but it will ask you to update the firmware or not. Just OK, and it's going to update it. And it's going to restart once it's done. And normally, turn it off and turn it on one more time after it restarted. Just make sure. And number six, if the firmware doesn't work, what we can do is select the thumb drive and format it. Just right-click and say Format. Number seven, number seven is the formatting the thumb drive doesn't work, as you're going to select different cluster size. Just right-click on the thumb drive, say Format. And under the 32, you're going to see allocation unit size. And click, just give another size. I hope those solved your problem. I got your printer back printing again. If you like this video, please subscribe and click Like. So we can get motivated and make more videos, something like that. Cheers.