As mentioned by others…..overall I think it has to do with the type of OS the software was written for. Linux was one mentioned …and you are trying on a windows OS? perhaps needing as mentioned, a driver.
Im not an expert, and I have only read back 10 or so pages of this massive thread

but just going off what ive observed so far, my windows PC does have a driver installed that is allowing the tricorder to connect and be recognized thru the COM3 port. I think the next step to get some sort of access to the software will require a program that can essentially "login" to the tricorder. I think ive gone as far as I can go with my limited expertise.
I have also tried multiple video and picture formats via the SD card slot and usb-c port, with no success. This doesnt supprise me tho. After perusing thru TWC blog and reading Chris's comments on the subject, I knew it was a long shot.
Just to give a little background: Im in Canada and ive had my tricorder since the end of May. As far as the hardware goes, It is an excellent working prop replica. Im also surprised and impressed with the software and user interface. With all the different tricorder-like functions and the logs and archives etc. I think it is a great collectable and im very happy with it.
And thats it. Good job TWC! 10 out of 10 from me. End of review.
Now... In a perfect world where I get everything I want in life... I wish this would have had similar real-world functionality like the phaser remote and bluetooth communicator. It would have been nice if I could load it up with TOS episodes and have it play them while its sitting there on its display stand. I know thats not what this prop should be doing. Its a tricorder not an ipod. Yes I can already do this and watch Star Trek on my phone, or better yet on my giant TV where it belongs, but the 12 year old inside me cant help wanting to watch it on this thing. And 12 year old me thinks this is a missed opportunity, simply because it seems like a natural pairing with the landing party set. It should have had an IR receiver hidden somewhere so the phaser could be used to play, pause, and cycle thru the episodes, control volume etc. and it should have had a bluetooth transmitter so the communicator could be used as an external speaker. Heck, with an unlimited budget they could have given us a medical scanner that was a secret USB thumb drive, so we could load up our stuff on it and then docking it in its cradle in the lower compartment would also connect it for file transfer or whatever.
But alas... In the real world where im sure all of what I want is either to expensive, or breaks the copyright agreement or whatever million other reasons in the sack, what I ended up with still exceeded my expectations and this rant is by no means a complaint about how great I think this thing really is.
But i still want my trek on it, so if someone does hack in to it and give it video player functionallity, I will be first in line to install that "jailbreak" software patch. Even if it cant read data from the usb or sd ports, someone should be able to say... replace the City on the Edge of Forever newsreel clip with the actual episode reduced in file size to fit on whatever internal drive is available
One last thing: I was disappointed when I first learned the tricorder wouldnt have a hard case like the phaser and communicator, but I was able to find a case on TEMU that works great, and even interlocks (sorta) with the other cases.