One UI 9 Update Linked to Android Auto Stuttering and Disconnects on Some Galaxy Phones
The problem can disrupt in-car phone-to-infotainment connections, creating safety and usability risks until Samsung issues a patch.
Overview
- Users have reported stuttering audio and complete Android Auto connection failures after installing Samsung’s Android 17-based One UI 9 on certain Galaxy models.
- Reports have appeared across Reddit, Samsung community forums, and Google product forums, showing a consistent pattern of similar symptoms from multiple users.
- An independent user test by Android Authority reproduced the issue on a Galaxy S24 Ultra running One UI 9 while a Galaxy S25 Edge on One UI 8.5 showed no problems, which points to the update as a likely cause.
- Drivers affected say the faults interfere with navigation and calls, which can reduce the usefulness of in-car systems and raise safety concerns during everyday use.
- Samsung has not issued a public statement or released a fix, and past OEM interface updates suggest a targeted software patch will be needed to resolve device- or build-specific regressions.