1. blueade7's Avatar
    In order to attach my phone (Nokia 7.1 on Android Pie) to a DAC/headphone amp, I set my phone via developer options to "use USB as audio".
    I thought I'd changed it back to "use USB as charge", but perhaps I didn't. :-(
    Anyway, the phone has now run out of charge, and will not re-charge or turn back on. I'm now pretty stuck. The battery is non-removable and does not charge wirelessly.
    Any ideas?

    Alternatively it could just be a problem with the usb port. To help diagnose the cause of the problem - whether my fiddling around with the usb functionality or a hardware problem - can anyone answer whether the phone *should* charge anyway even if set to use USB as audio or midi?
    09-22-2019 04:34 PM
  2. belodion's Avatar

    Was that in the option called Select USB Configuration? In the phone I'm using now, that is set to MTP rather than Charging - presumably as a default setting since I've never had occasion to change the setting on this particular phone - and yet it charges normally, and Developer Options are switched on.
    blueade7 likes this.
    09-22-2019 06:01 PM
  3. blueade7's Avatar
    Problem solved. Unclear what problem was - perhaps frozen screen when powered off. Suddenly leapt back to life with 30 % charge.
    09-22-2019 06:01 PM
  4. blueade7's Avatar
    Thanks for your help. You're right - it charges regardless of USB function selection.
    belodion likes this.
    09-22-2019 06:02 PM
  5. belodion's Avatar
    I'm glad that all is well.
    kct1975 likes this.
    09-22-2019 06:03 PM

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