Answer to: No sound from external speaker!Hi, I had once this problem. I disassembled the speaker enclosure and put some electronical cleaner (spray) in the speaker... After letting it dry, I reassembled the phone and all worked fine again.... Hope this will help you
Answer to: Why iPhone 4 doesn't vibrate?It is me again. It worked! It's incredible. I hit with my hand against the backside of my iPhone and it vibrates now. I would have never believed it, that you have to hit a device valued over 600€... LOL. In other words... You have to hit if you want something. LOVL
Answer to: Why iPhone 4 doesn't vibrate?I am new here and I have the Problem too. On a French forum I saw a strange thing but for several people it worked. With the hand, give a tap on the backside of your iPhone 4. I'm Not sure if it works as mine is covered and I will bring it back...