Any idea where the SD card gets mounted? The internal storage shows up as `sdcard`, and programs like VLC, Kodi and FX file explorer don't see the device at all. But, the built I can access the external SD card from the in-built file explorer and File Commander. And I can play videos from these using VLC, but can't access them directly from VLC.
I also tried to exploring using command line, ADB and Termux. `/mnt/sdcard/`, `/sdcard/` and `/storage/self/primary/` or `/storage/emulated/0/` show internal storage.
Sometimes `/storage/emulated/` or `/storage/self/` say access denied depending on what app I use. But I don't see another folder there to indicate an external SD card has been mounted.
Also, like other's have mentioned, there is considerable battery drain even when the screen is locked suggesting sleep is working incorrectly, or something in the background is preventing the device from going into sleep mode.
I checked with adb and found the external SD card is mounted on
/mnt/media_rw
Under this folder you find a folder of hexadecimal eight letters that depends on your SD card.