Import original files to replace smart preview in Lightroom (mobile/ipad)

Indeed. This won't work on the mobile OS version. Only on the Mac/PC version of Lightroom Cloudy. It is not an officially documented feature and doesn't always work correctly.

This has not worked for me.

Importing to Lightroom Mobile on my Ipad.

I get the msg that the file was skipped because it is already in the library.

I have to delete the smart preview, I copy the devlop setting first and then paste them into the new imported raw file.

BIt of a PITA but it works.

The ideal situation would allow you to specify this in classic but I am not holding out hope. In the mean time add your vote here: https://community.adobe.com/t5/lightroom-classic-ideas/p-should-be-able-to-sync-full-raw-files-to-the-cloud-not-just-smart-previews/idi-p/12248616 

Clunky, but effective... thank you for the insight! I would love for Adobe to streamline the workflow at some point. A simple switch to enable you to choose whether to push the RAW file online or not, but for now, this will do.

You can do that by unsyncing them in  Classic and resyncing them in Classic. All edits should be intact after that but there should only be a smart preview. 

Thanks for the tip. How do you then remove the RAWs when you are done with them so only the Smart Previews remain? For me (and forgive my assumption, as I thought this might be what the OP was asking), I'm looking for a way to have the RAW images for my "active" projects available in the cloud and on all of my devices, but be able to remove them and just have the smart preview once I am done with that project so I don't waste online storage holding RAWs I don't need constant access to. If you have a way to do that, you'd be magic!

I do what Johan suggests all the time. This works well. 

 If you are using Lightroom Classic on your desktop to edit, RAW files won't sync to the cloud. That is a design decision by Adobe. If you want your RAW files in cloud/available on your mobile devices, you would need to switch to Lightroom system. That will move all of your files into Lightroom, which requires use of cloud storage to work.

 

There is currently no option to selectively sync RAWs based on collection/album. It is an all or nothing deal.

Please read my suggestion about how you can combine Lightroom and Lightroom Classic to achieve just that: selective raw originals in the cloud.

If you are using Lightroom Classic on your desktop to edit, RAW files won't sync to the cloud. That is a design decision by Adobe. If you want your RAW files in cloud/available on your mobile devices, you would need to switch to Lightroom system. That will move all of your files into Lightroom, which requires use of cloud storage to work.

There is currently no option to selectively sync RAWs based on collection/album. It is an all or nothing deal.

You do not have to delete the smart previews. Install Lightroom on your PC as well. If you want to replace a smart preview that was synced by Lightroom Classic, then import that photo in Lightroom. Import the original photo, do not make a copy. Lightroom will now be clever enough to understand that this is the original photo that belongs to the smart preview that is already online, and replace that smart preview while keeping the edits.