If you need to know the serial number for Apple's MagSafe Battery Pack, there are a few ways to check. The serial number may be useful for verifying authenticity. If you take the ‌MagSafe Battery ...

This tutorial helps you find out the ECID of your iPhone, which helps extracting SHSH keys needed to downgrade your device. Please backup your device with iTunes before performing the procedure below.

You'll need if you want Apple's support. Photo: Apple/Cult of Mac If you run into any issues with your new MagSafe Battery Pack, you may need to provide Apple Support with its serial number. There are ...