4.3 Project Value. It is not too difficult find information about mobile phones vulnerabilities and methods to data recovery, but on the contrary, it is complicated find information about data recovery using professional manners (digital forensic methods).

4.4 Project Interest. The methods and techniques that will be described in this project can be used as guide for digital forensic students, or can also be used to improve the knowledge of digital forensic professionals.

5. METHODOLOGY

The methodology used in this research will be divided in different phases, in order to offer a better perspective and understanding with respect to this research.
The list of devices used during the investigation is:

Nokia C5-00. It was chosen for this research …show more content…
Kernel Version: 3.0.31-2168382

iPhone 2. It was chosen this mobile phone because is one of the first iPhones on the market, and it was necessary to make a comparison of iOS features between an old device model and a new one.
Technical Characteristics:

iPhone 4. It was chosen because is relatively a new device, being iPhone one of the most popular mobile phones. Similarly to the iPhone 2, it was necessary to establish a comparison between 2 iOS devices.
Technical Characteristics: . Model: Apple iPhone 4S . Platform: iOS . Software version: 8.3

Phase 1. Data Gatheting. As a previous step to start this research, it was necessary to configure all devices with the factory settings; it means that not information will be available before the data acquisition.
Once the devices have been restored to the factory settings, it was be necessary to add contacts, make and receive phone calls, download and install new software, connect to different WIFI networks, and browse on internet; It was shared information with other users, deleted and modified data, connected to an e-mail server, and it was tried hide information (using specific memory partitions). Every device selected to this study has the “factory settings”