trying to upgrade a new devo 8s I just got

trying to follow the most current utube video and when a hook it up and try to download the .dfu it gives me a red message saying not the correct format. I tried the newest 4.0 and even 3.0 just to see if maybe it would work and nothing. I bought this devo 8s as a stand alone and not part of a package so maybe it is old maybe new so not sure if I need to do something to it first before any of this works? Ive tried to goggle the message and nothing comes up to help with it so figured time to ask some one. sucks that walkera is pulling all this off the site and not supporting such a great product.

so no one has seen this message? big red letters right above the devo 8 message saying logged into it.

Hello,
I had this red message "This File Does not-have a correct format ..." because the .DFU-file was not unzipped. For information on the mine 4.0.1 version is 166KB. We need you to make sure it is well unzipped it may be the reason.

I had saw a few mods were logged in at the time I posted it is why I asked again. Will put up a screen shot here in a second and double check that it was unzipped correctly. It looked to be as when down loaded it was one file then after unzipping I believe it showed a couple then picked from a list and that was the only .dfu file available. I will check the bites on the file to compare. Answer back shortly and thanks as transferring from rc truck racing to this more open hobby of flying for my area at least anyway.

so made sure unzipped and says it is 109kb compressed then 156kb 31% ratio so maybe didnt open right? Getting info from the open page when I try to attach the file. While waiting for response will try to down load and unzip again see if changes. here is a screen snip of two screens. thanks

here is one more shot of the open screen after the unzip where I go to choose which file to attach to send to the tx.

so downloaded the file and right click the zip file and hit extract all files and that is how I got to the dfu file so what am I missing on it? Sorry hadnt had to mess with this stuff in a long time so probably something stupid on my part but in the second screen shot where it gives me the option to choose the dfu file isnt it already unzipped from the main file when in that screen? hope I am making sense here sorry if confusing in explanation of it. thanks

Yes, I think the files are not unzipped. Right-click in the folder and select Unzip.

I got it thanks for help. Feel stupid for missing something so basic. I had to use my rar winzip standalone rather then the open right out of download for some reason then opened all to desktop to make it easy and now all set up on tx. Since have you for quick question now that i am setup what is the best way to go about setting this all up? Down load the manual for my 8s and read through it all or is there some other link or hints and tips I should check into? I am flying two v120d02s an older one that wouldnt hook to this tx and the new style that I could bind to no problems. the old one was with a 2601 tx that was a pain to use compared to the 8s and why I did this so could use that one and maybe some blade models and my other airplanes in the future. One tx for it all is so nice and all of you that work on this should be thanked regularly for doing this for the hobby. if you have a paypal support account I am willing to contribute to it to help keep this going. Thanks for the help so far and any other advice to send me down the right roads into taking full advantage of this now hacked tx.
Joe