The SIM card or Subscriber Identity Module is a removable memory card inside your iPhone that stores information identifying the device on a cellular network. Follow these steps to remove or replace the SIM card on your iPhone:
1. Locate the SIM tray. On the original iPhone, iPhone 3G and iPhone 3GS the SIM tray is at the top of the device. On the iPhone 4 and later the Micro or Nano SIM tray is located in the center of the right side.
The iPhone 6s and iPhone 6s Plus come in three different models each. Apple has mostly consolidated the needed LTE wireless bands to make their products compatible with the latest network technologies. However, there are still differences between the frequencies supported with each model number.
Submitted by Fred Straker on
Apple has sourced A9 processors found in the iPhone 6s and iPhone 6s Plus from two different suppliers, both Samsung and TSMC. While the design and real-world performance are practically the same, each chip manufacturer is actually using a different die size. The Samsung version (APL0898) is arguably more advanced since it uses a 14-nanometer process, resulting in an A9 with a footprint of 3.78 square inches. By contrast, the TSMC chip (APL1022) takes up 4.11 square inches thanks to a 16-nanometer process. So why does any of this matter?
Configuration profiles are XML files which can be found on iOS devices under Settings -> General -> Profile. Each profile includes custom settings, which are normally distributed by companies or organizations to a large number of devices. Settings which can be defined by these configuration files include the following:
Stored iOS profiles on the iPhone, iPad or iPod touch can be deleted in a few easy steps. Note that deleting actively used configuration profiles can cause issues with Wi-Fi or VPN settings, Email, Exchange, Credentials and other configuration information within the profile.
