iPhone 4 - No Sound, Bad Hardware?

Great phone no issues here!

I had a very similar problem. My phone was working perfectly for a week then I had about 30 minutes of static in the audio and then there was no audio. I couldn't get sound out of the bottom speaker, the ear speaker, or headphones. The people at Apple said that hadn't heard of this happening before, but replaced my phone.

Wife just got her new iphone 4 today. Phone (sound) worked fine at first but now NO SOUND from ear piece or speaker. I can get sound using a headset though.

When you adjust the volume does it say headphones on the screen even when the headphones are not plugged in? I have had this happen. Plug the headphones in and unplug and see if that fixes it. You may need to do this a few times.

No. It says ringer when I adjust the volume. Then says (headphones) when the headphones are plugged in.

I have just bought my iPhone 4 today, set it all up, then noticed no sound.

The earpiece works on calls etc, as do the headphones, but the loud speakers do not work at all.

It does not say headphones on the volume control (though i have had this problem on my iPhone 2G in the past) it seems the audio is always a problem for me! Had the audio flex cable go on my MBA a couple of months ago too!

Have tried a reset on the phone, and a restore through iTunes. Still same problem.

Tried the OP suggestion of tapping/shaking, still nothing.

Has anyone else had this issue and found a fix?

As an FYI for those using plural with the speaker, the iPhone includes a single external speaker. The opposite grill that appears the same is the microphone.

If no change after restoring with iTunes as a new iPhone or not from a backup, this means there is a hardware problem which there is no fix for except an exchange under warranty.

Following on from this my previous post, I went to bed and was awoken this morning to the sound of my iPhone ringing with an incoming call. After this, everything worked fine for 30 minutes, and now, once again, no sound at all.

I also spoke to Apple yesterday, and they have already advised me the best I can do is take it back to where I purchased, and ask for an exchange.

nip848 wrote:
Following on from this my previous post, I went to bed and was awoken this morning to the sound of my iPhone ringing with an incoming call. After this, everything worked fine for 30 minutes, and now, once again, no sound at all.

I also spoke to Apple yesterday, and they have already advised me the best I can do is take it back to where I purchased, and ask for an exchange.

So they won't fix it? I've got the same exact problem...the sound goes in and out unpredictably - kind of a major problem when it's your only phone. Sometimes when I leave it lying flat for a while the sound will go back. Not sure if it's leaving it flat or just random chance though.

Message was edited by: drunner2

If your iPhone has a hardware problem, the iPhone includes a one year warranty. If determined to be a hardware problem, your iPhone won't be fixed, it will be exchanged under warranty. If you live in the U.S., you can call AppleCare or make an appointment at an Apple store if there is one nearby.

I got the same issue here. I bought the iPhone4 from Smartone in Hong Kong last Saturday, the sim card activated this morning and noticed that there is no sound for all incoming calls, games, music from speaker, yet it works on headphones. Called Smartone and they refused to replace a new phone for me, have to bring to the repair center tomorrow, so annoying.

Ok.. went to the service center and replaced a new one. happy now!

Same problem here... just got my iPhone 4 today in the mail, spent 1 hr syncing and activating it only to find out it has no audio at all.

No Ring tones (vibrate works)
No iPod audio
No App audio
No Phone call audio (in or out, they can't hear me either)
No Headphone audio

Tried rebooting 3 times
Tried hard reset twice
No difference

Looks like I'm heading to the Apple store... it's pretty shocking that they ship a unit that is completely deaf/mute straight out of the box... where is the QC?

Same here!!! After one week I got my new iPhone4, it suddenly has no sound when you pick up the phone unless you use speaker phone, and no sound from ipod.

It seems there are so many similar cases, what is Apple doing? Sucking up all the money and doesn't care about the quality of its product?!

Hopefully I can exchange to a new one.

This is my first time use Apple product, disappointed!