Lightroom mobile disconnected files

Hi people, I've experienced a disaster last night.

I'm using lightroom mobile since a while and all my photos were stored in the internal storage of my phone. Last night I got a micro SD card, placed it in the phone and switched the storage option to the new micro SD card. Lightroom copied all files onto the card, everything went fine and my 2600 photos were still accessible by lightroom afterwards. 

I then started importing more photos, from my camera to lightroom via an otg card reader when at some point, something went wrong (I ignore what) and my micro SD just disappeared. I noticed it when I couldn't import photos in lightroom anymore, the app was showing zero photos and my heart sunk. I unmounted my camera's card, restarted my phone, opened lightroom and it started pulling photos from the cloud. It recovered only 700 photos.

But as the card was still showing to be full of 37gb of files, I dug into it and found my photos, in many subfolders. I also found folders called xmp.develop containing hundreds of files (if I understood right, my developments for each photo)

So my problem now is : how to have lightroom read those folders to pull back all those photos and developments into the app, as they're right there, ready to be used.

BTW, I can't access my micro SD card from the lightroom app, it only reads my phone's local storage. But I can access my micro SD from my phone's file manager.

Thanks in advance to anyone who wants to help!