Hello,
this is my setup:
Android box, running android 6.0.1, with internal 16gb ram and 128gb sdcard(external card but formatted as internal.
PC windows 8.1.
Everything is connected via WiFi.
Is it possible to access the 128gb card from my pc? I have managed to access the 16gb default storage but no luck getting to the 128gb one.
You may want to see if servers ultimate will work
https://play.google.com/store/apps/details?id=com.icecoldapps.serversultimate
See sidebar for official devices of the sub
You could try Air-Share also...
https://play.google.com/store/apps/details?id=com.blackspruce.gloo&hl=en
Wifi File Explorer works well, I've used to to transfer the entire mame romset (23GB of small files) to my forge tv as well as other files afer ES file explorers samba transfers and others kept crapping out partway through, start the app up on your android tv and you and access your files through a web browser interface with drag and drop file transfers to your android TV.
Edit: link to play store https://play.google.com/store/apps/details?id=com.dooblou.WiFiFileExplorerPRO
Maybe with ES File Explorer or something. I dunno, we don't deal with Android boxes in here, only devices that run the Android TV operating system.