Please read with concentration * I do not take responsibility for the wrong application of these steps in any way We know how to upgrade the Android system to the latest version. As we know, some devices enjoy a period of receiving updates from the manufacturer, which may extend up to two years from the date of issuing the phone. After two years, the support of the device will stop and the receiving of updates will stop and over time the phone may become somewhat slow . During these two years, the updates received from the company are called (official updates) or (aeronautical updates). When the user wants to update his phone after the support period has elapsed, the informal method of updating is followed by a modified ROM installation. what is it
