Android ftp apps never work. It’s also a huge pain and borderline impossible on some distros to get mtp over usb cable to work and even when it does work it barely works. Most phones don’t have an sdcard slot so you can’t go that route either. And I’m definitely not using Google drive because they’ve on purpose tried to make it impossible to go any route other than that and fuck Google.

My solution? I made a php page with a file upload so I have to upload my files via php. It’s the only way. It’s still easier than using the USB cable if it actually worked though. Luckily there’s no way Google will ever find a way to patch this out. Transferring files to the phone involves putting my files in a folder with a php script that autopopulates download links onto a page so I can download them via browser.