Android 4.4.2 KitKat was designed for efficiency on limited hardware. However, it lacks modern security patches, app compatibility, and features. Upgrading to Android 7.0 Nougat (via LineageOS or CyanogenMod ) offers: for multitasking. Improved Doze mode for better battery management. Data Saver functionality. Enhanced security updates. Prerequisites: Before You Begin
Select "Backup" and create a full Nandroid backup of your existing 4.4.2 system. android 442 update to 70 verified
If you find a video on YouTube with 500 views promising the update, but no XDA thread exists— do not flash it . You will brick your device. Android 4
After booting into Android 7.0, take the following steps to confirm that the update was successful and that your new OS is functioning properly. Improved Doze mode for better battery management
Select "Wipe" -> "Advanced Wipe," and select Dalvik/ART Cache, System, Data, and Cache.