iPhone 5s keyboard click suddenly became loud

Hi,

Firstly i would like to say sorry if there's a similar topic before.

Just purchased an iphone 5s yesterday and i noticed there's a strange loud sound with the keyboard click when i was typing. I was in the middle of a conversation in whatsapp, and when i typed in some letters, the keyboard click tends to be quite loud and then back to normal again. i noticed that it will turn loud if i type in some letters and receive a message at the same time and then the clicking volume back to normal again.

What causes this btw? Thank you very much for your help and thoughts!

Exactly.

Tested out with some on my friends iphone and it came out with same problem. I wonder why because i havent encountered this problem with the previous model.

Is it? that's not cool though. I hope that apple with fix this on the next update.

It is because when you're typing (clicking), and at the same time there's a message is being send or receive, the speaker will automatically snap and resulting in a louder click.

If there is no message received, you keyboard click will be normal.