If you’ve lost the SIM ejector tool that comes with the iPhone, you can still open the iPhone SIM tray with some workarounds. Here’s how. If you frequently take international trips it probably means ...

The subscriber identity module -- SIM -- contains the information used to connect to your wireless carrier's network from your iPhone 4. If you are planning to resell your company's iPhones, you ...

We may earn a commission when you click links to retailers and purchase goods. More info. This is somewhat of a random tip, but since the issue just happened to the DL crew last week at Google I/O, we ...

All iPhones and iPads with cellular have a slot on their sides that houses the Subscriber Identity Module (SIM) card provided by your mobile carrier. The SIM card enables your device to access the ...

A SECRET red line on your iPhone can indicate if your phone has suffered water/liquid damage. The line is called Liquid Contact Indicator (LCI) and is visible from the inside of your SIM card tray.