# USB Exclusive Mode Crashes Symfonium App - Jelly Star Phone Fiio Tiny USB DAC

**URL:** <http://support.symfonium.app/t/usb-exclusive-mode-crashes-symfonium-app-jelly-star-phone-fiio-tiny-usb-dac/15148>\
**Category:** Support\
**Tags:** handled\
**Created:** [September 21, 2026, 10:27am UTC](http://support.symfonium.app/t/usb-exclusive-mode-crashes-symfonium-app-jelly-star-phone-fiio-tiny-usb-dac/15148 "2026-09-21T10:27:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Starhutch](http://support.symfonium.app/user_avatar/support.symfonium.app/starhutch/32/8248_2.png) [@Starhutch](http://support.symfonium.app/u/Starhutch)\
**Post date:** [September 21, 2026, 10:27am UTC](http://support.symfonium.app/t/usb-exclusive-mode-crashes-symfonium-app-jelly-star-phone-fiio-tiny-usb-dac/15148/1 "2026-09-21T10:27:06Z")

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### App version

Production

### Issue description

Symfonium Version 15.01

Submitting issue for the specific hardware feedback.

Jelly Star Android with Fiio Tiny USB DAC.

When Symfonium is given exclusive control through the app, audio will suddenly stop after an amount of time and Symfonium will crash.

turning off exclusive USB control will stop this. Logs submitted.

### Device type

Phone

### Media provider

Local device

### Steps to reproduce

-Open Symfonium

-Plug in USB DAC

-Play audio for an amount of time

-Symfonium crashes and music stops

### I searched existing issues first

on

### I understand that logs are mandatory

on

### Log upload name / description

Starhutch

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<div class="post-metadata">

**Author:** ![Tolriq](http://support.symfonium.app/user_avatar/support.symfonium.app/tolriq/32/726_2.png) [@Tolriq](http://support.symfonium.app/u/Tolriq)\
**Post date:** [September 21, 2026, 10:46am UTC](http://support.symfonium.app/t/usb-exclusive-mode-crashes-symfonium-app-jelly-star-phone-fiio-tiny-usb-dac/15148/2 "2026-09-21T10:46:05Z")

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The logs show Android stopping Symfonium while USB playback was still progressing normally, rather than recording an app crash.  
Did you manually force-stop or close Symfonium after the sound stopped? If not, please disable App Blocker/background cleanup for Symfonium and allow unrestricted background battery use, then retry USB exclusive playback. If it happens again, please note the exact time and whether the screen was off.

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<div class="post-metadata">

**Author:** ![Starhutch](http://support.symfonium.app/user_avatar/support.symfonium.app/starhutch/32/8248_2.png) [@Starhutch](http://support.symfonium.app/u/Starhutch)\
**Post date:** [September 21, 2026, 11:16am UTC](http://support.symfonium.app/t/usb-exclusive-mode-crashes-symfonium-app-jelly-star-phone-fiio-tiny-usb-dac/15148/3 "2026-09-21T11:16:38Z")

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Thanks for the reply!

The audio just stopped after about approx 20 mins . When I unlocked the phone, Symfonium was not open anymore.

I’ll keep trying it and repro’ing the logs.