If the error occurs only when scrolling through music files or setting a custom ringtone, your SD card or internal storage has a corrupt audio file.
If you use wired headphones or DACs:
For rooted users experiencing persistent Sonic Err: Sonic Err Android
3.5/5 – Promising but rough. If you love glitch art and don’t mind instability, it’s worth a free download. For reliable studio use, wait for updates. If the error occurs only when scrolling through
Open Sonic Err on a flagship Android device and you’ll find a gritty, industrial-looking UI. No fluff. No gradient gloss. Open Sonic Err on a flagship Android device
If you have tried all five fixes above and the Sonic Err Android message persists even in Safe Mode and after a full factory reset, you likely have a hardware failure. The most common physical causes include:
In this case, contact your phone’s manufacturer (Samsung, Google, OnePlus, Xiaomi) or visit a uBreakiFix location. Do not attempt to re-solder audio ICs at home.