3 of 5
BACKNEXT
Proximity sensor: The cheeky hang-up
Proximity sensor: The cheeky hang-up
The iPhone has had a storied history of dropped calls. First, it was AT&T's fault. Then it was the death grip. Now -- it's your cheek?

Every iPhone has come equipped with a proximity sensor that detects when you put the phone to your ear. In theory, when you use the iPhone as a phone (imagine that!), the screen shuts off so that you don't accidentally select any of the on-screen options that could disrupt a call, like "mute," "hold" or "end."

But users have complained that the sensor in the iPhone 4 doesn't work properly, causing the device to accidentally drop calls or dial numbers mid-conversation. There are nearly 2,000 posts about the issue on an online forum that users created on Apple's website.

The glitch brings to mind the "butt calls" from the days of candy-bar-shaped cell phones. Remember when a friend would forget to lock his keypad, and he'd call you unknowingly from the back seat of his pants? Ah, memories ...

Apple said it is working on a software update to address the sensor issues.

NEXT: White iPhone 4: MIA
Last updated July 16 2010: 3:08 PM ET
More Galleries
Cool cars from the 2015 Geneva Motor Show These are some of the stand-out cars and trucks on display at the 2015 Geneva Motor Show. More
Yahoo: 20 years of hits and flops The company that once was Google turns 20. We look back at the many, many brands it has cycled through. Remember Geocities? Broadcast.com? More
10 big dot-com flops Remember Pets.com? The Nasdaq is roaring back towards its all-time high. Here are some of the biggest dot-com busts from the last time the Nasdaq topped 5,000. More

Special Offer