In today's video I will show you how to retrieve the iCloud e-mail address from an iPhone using a backup. This method is pretty useful if you bought one one eBay and its locked but activated, or not erased, it will help you to contact the owner and discuss with him; Please keep in mind that you should not publish owner e-mail anywhere.
The method works this way, you make a backup of the device, then you need to locate the account database as shown in the video. You will need to extract it to be able to read it using a SQLite browser. although the output data looks chunky, you will be able to find what you need, as shown in the video.