Specification Microsoft Lumia 640 Dual SIM |
Secret codes Microsoft Lumia 640 Dual SIM |
Hard reset Microsoft Lumia 640 Dual SIM |
Root Microsoft Lumia 640 Dual SIM |
OS: Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 CPU: Quad-core 1.2 GHz Cortex-A7 Display: 5" inc Camera: 8 MP,
Single |
Thomas Nilan Smartphone Expert | |
Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones. |