Connect your device to the PC while still in TWRP. Your PC should recognize the internal storage.
Upgrading a device from Android 4.4.2 KitKat to Android 9.0 Pie is a significant jump (spanning five major Android iterations: 5.0 Lollipop, 6.0 Marshmallow, 7.0 Nougat, 8.0 Oreo, and 9.0 Pie). This leap brings immense improvements in security, functionality, and app compatibility.
Upgrading a device from Android 4.4.2 (KitKat) to Android 9.0 (Pie) represents a massive leap in mobile technology. KitKat was released in 2013, while Pie arrived in 2018. Attempting this upgrade requires moving past five major generations of the Android operating system.
The upgrading process requires completely wiping your device's internal storage. upgrade android 4.4.2 to 9.0
Before we dive into the upgrade process, let's quickly discuss why you should consider upgrading to Android 9.0. Here are some compelling reasons:
Set up Android Debug Bridge (ADB) on your computer. Phase B: Flashing a Custom Recovery (TWRP)
If an update is available, follow the prompts to download and install it. Connect your device to the PC while still in TWRP
: Custom ROMs may have bugs, such as the camera or GPS not working perfectly.
Every manufacturer is different.
The bootloader is the low‑level software that starts up your phone. It must be unlocked before any custom system software can be installed. Unlocking methods vary by manufacturer: Attempting this upgrade requires moving past five major
If the device gets stuck on the boot animation for more than 20 minutes, boot back into TWRP, perform another factory reset (wipe Data/Cache), and re-flash the ROM.
Most devices require you to unlock the bootloader to allow third-party software installation. This is usually done via in your settings. B. Install TWRP Recovery