The iPhone User Guide

The iPhone headphone socket has a little contact switch inside it that tells the iPhone to switch from external audio to headphones audio when plugged in. Sometimes this can get some dust or fluff underneath the contact and the iPhone or iPhone 3G can get jammed in headphones mode.

To cure this, one suggestion from Apple Technicians is to insert and retract the headphone jack a few times to dislodge the dust or fluff and clear the contacts in the iPhone.

Be gentle, you don’t want to break your iPhone or Headphones.

DISCLAIMER: We accept no responsibility if your big strong hands break your iPhone in the process.

Independent developer Bas Tossings has released a charming new iPhone game called Loopy Laboratory. While it’s not entirely perfect, after playing too many half-finished games and glorified tech demos, it was refreshing to finally see a game with some depth and character. One iTunes reviewer has described this as a remake of Chip’s Challenge/Tile World which it does seem to resemble though the developer says he was inspired by a number of older puzzle games which came together for this project.

The gameplay video shows a few of the early levels (3, 6, 7) and a later level (31). Note that the conveyor belt does not video tape well (grey moving walkway). [toucharcade]

Black Mamba Racer is a $3.99 2D overhead racer in which you skid and slide your way around 25 racing mission across 9 different tracks. While the graphics may look primitive, the gameplay is surprisingly fun and challenging. iTunes App Store