[Q] HOX no speaker sound + too fast video reproduction on media playback -
I use a black HTC One X since April 2012. The current software version is 4.18.401.2, Android 4.2.2 with Sense 5.0.
It's both beautiful and powerful and the best phone I've ever had.
The only problem I am experiencing lately occurs upon media playback: There is no sound on the external speaker. As soon as I connect a headphone (and switch to wired headset w/o mic using SoundAbout - my headphone jack gave up some months ago) to the phone or a bluetooth speaker, the problem doesn't occur any more. Funny aspect: Playing Videos or MP3s (independent of the used player software) the video reproduction is much too fast and skips. Also, the track position indicators/time counters in music players forward much too fast.
Things I've tried:
reboot (w/o fastboot)
shut down and power on again
reset firmware (this worked initially, problem came back some days later)
I cannot send in my phone because I had to destroy the warranty sticker during a battery replacement I performed some time ago (HTC One X+ Battery). There is no correlation between this and the audio problem.