Check Your iPhone 4’s Antenna Reception With Field Test Mode In iOS 4.1
Now you can put your iPhone into field test mode, which will allow to easily and precisely test your cell signal reception quality. You just need to follow these two easy steps: • First, upgrade your iPhone 4—or any iPhone—to iOS 4.1. • Dial 3001#12345# into your phone. Done. The signal bars will be replaced Read more about Check Your iPhone 4’s Antenna Reception With Field Test Mode In iOS 4.1[…]