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Check if you have any option in Settings (maybe Settings->Storage) to keep OTG connected in sleep mode. If you don't find anything related to that, it means there's some bug with the ROM. Maybe you can try this app: USB Autosleeper This app doesn't allow the phone to sleep when USB is connected. Whenever you connect OTG, run that app and do whatever you ...


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If your android smartphone does not provide enough to power up USB-OTG, you can get a OTG Y-cable from amazon for $7. You may need to install custom rom if your stock android does not support USB-OTG


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Android DOES support USB sound cards over android 5.0, or, if you have a sony, the Z series (Z2 and up), they support it since 4.4. I use my phone with a cheap chinese device, but tried a Xonar U3, and a creative Play!. However I never tried the audio recording through these cards.


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The power the USB port outputs depends on your hardware. If a standard USB OTG adapter does not provide power to the USB device, your phone or tablet may not support USB OTG. It's possible to make your own USB OTG cable with an external power source. You would basically connect the power providing wires in the USB cable to a 5V power adapter, and keep the ...


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I'm not sure this is entirely correct on Android, but on Linux, lsusb -v tells a lot about USB devices, including their maximum current output. If you can get usbutils on Android, that might tell you.


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If the stock music app is confined to internal storage [sdcard] and can access any directory in /sdcard that contains media you can try a bind mount between the [media containing directory] in your otg-device and a specified new directory in /sdcard mkdir /sdcard/more-tunes su chmod 755 /sdcard/more-tunes mount -o bind /path-to-otg-device/tunes ...


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Head into settings, about device, then tap the build number 7 times. From there, head back and you will see a menu called developer options. Tap it, and tap enable USB debugging. Accept the warning, and you are done.



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