When I increase volume above limit, the PA preference asks whether to disable warning, but no matter what option I pick the phone reboots and the setting doesn't save. I went in the Backup & Restore setting, all the preferences show up there except safe headset volume. I can only increase volume as long as I don't pick a preference for Safe Headset Volume but then there's no way to hide it and stays in the foreground.
Did a clean flash and also tried dirty flashing to make sure no corruption/rom issues. Searched the forum but didn't find any info. On 4.4RC1