Upgrading from KitKat to Nougat bridges a massive gap in mobile operating system history, offering critical performance and design enhancements:
Before attempting complex methods, check if the manufacturer ever released a later official version for your specific model. About Phone Software Update Check for Updates: Check for Updates Online Update
As a responsible blogger, you should note that there is no official path from Android 4.4.2 to 7.0. This post covers the custom ROM route (e.g., LineageOS 14.1).
Move the downloaded TWRP image into your PC's adb folder and rename it to twrp.img .
Once loaded, you will see the modern Android Nougat setup wizard, allowing you to log into your Google Account, restore your backed-up data, and experience upgraded features like native split-screen multitasking, revamped notifications, and expanded app compatibility. To ensure I tailor the next steps correctly, let me know: What is the of your device? Do you have access to a Windows, Mac, or Linux computer ? Share public link
If you flashed Magisk or SuperSU, install from the Play Store to verify root permissions.