To check for the latest official software without a computer: Open and select Settings . Scroll down and select About phone . Tap Updates and then Check for updates . 2. Manual Flashing (Stock ROM)
The method for installing firmware depends entirely on your model's chipset and operating system. Custom ROM for Alcatel Idol 4S | Windows Central Forum alcatel idol 4s firmware
This is the most important step. Installing the wrong will brick your device. There are three main variants: To check for the latest official software without