ceriada wrote:
Guten Abend, mein Sohn hat mir über ebay ein iPhone 4s geschenkt. Aber meine Freude ist etwas gedämpft, weil ich ohne dass ich den Lautsprecher einschalte nichts höre. Ist das ein häufiger Fehler, hat das schon Jemand gehabt und was soll ich tun?
Google
Good evening, my son has given me via ebay an iPhone 4s. But my joy is somewhat muted because I do not hear without I turn on the speakers. Is this a common mistake that has already had somebody and what should I do?
There are several threads on sound problems with the 4s.
Some 'solutions' seem to be mechanical, as in removing obstructions from the speaker.
Look at some of these threads, ceriada
iPhone 4s sound problem!?
If you can't hear a person on a call or voicemail or if the sound quality is poor on iPhone - Apple Support
If your voice is too faint or sounds unclear using iPhone, or iPod touch - Apple Support
If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support