Upgrade Android 4.4.2 To 9.0 -

You must install TWRP (Team Win Recovery Project) for your specific device. Step-by-Step Upgrade Process

Before diving into the technicalities, let’s examine the benefits. upgrade android 4.4.2 to 9.0

Upgrading a device from Android 4.4.2 (KitKat) Android 9.0 (Pie) You must install TWRP (Team Win Recovery Project)

There are two primary methods to upgrade your device: upgrade android 4.4.2 to 9.0