Mobile phone upgrade can be referred as the process where users can stay connected with the same network provider (eg T-Mobile, Vodafone, Orange, O2, 3G, Virgin etc). It is quite obvious that one changes the service if get good offer and deal. But, one can take the advantage of mobile phone upgrade process while remaining with the same service. Service provider feels that they are more benefited with their older users rather than to have new people. So, in order to convince their user to continue with them, they offer lucrative deals and gift packages. Users who are tied with the contract deal may get a new handset for free or some discount price offer. Mobile phone upgrade is advantageous for users because they can continue with their existing network with the same phone number. For this, users are required to extend their contract agreement with their network provider. Users may not get same phone number and value after changing to another network. Some great deals can also be found for such users who want to extend their pre-paid deal with their existing network service provider. Remain loyal with the current network and enjoy the benefits plus offer provided by them.