Since this forum has moved to a subdomain and was replaced with another forum software most of the attachment won't work anymore. Here's a fix that you can try in order to still download a file. If you go to the Latest firmware thread and for example scroll down to the section that says "For RVOSD G6 with Rvlink:" you'll see working links below ("View attachment..."). Now, right (or command + ) click this link and select "Copy link address" from your browser's context menu. Open up a texteditor and paste the link. You'll be see something like this: http://forum.rangevideo.com/index.php?attachments/3066/ This link actually does work and hence is our entry to other attachments. Now do the same on the link a few lines above where it says "Main board: M6.06_H6.00_d001.hex, Release date: 20/October/2014" - this link won't work Copy this link and paste it below the first link in your texteditor and you'll get something like this: http://www.rangevideo.com/forum/attachment.php?attachmentid=2830&d=1413831407 From this link simply take the value of "attachmentid" which is 2830 and replace the trailing number of your first pasted link with this one, so it looks like this: http://forum.rangevideo.com/index.php?attachments/2830/ Et voilá you can download the firmware for RVOSD G6 without RVLINK. Hope this helps.