鈴聲太小聲.......................................求救

leo 2010-01-06 00:07 | Acer
鈴聲太小聲，尤其是導航.我是用papago X3.結果聲音好小.我原有papagoR15+倚天X800...還有Garmin-Asus M20都很大聲..獨獨為何這台這麼小聲啊.......................................求救