You will need:
Storage tip: Copy these .zip files to an external SD card. If your phone has no SD slot, push the files via ADB after wiping the system. upgrade android 4.4.2 to 9.0
You are now in TWRP. Do not touch the screen unless you read carefully. You will need:
First boot takes 5–15 minutes. Do not interrupt it. If it loops back to recovery, you missed wiping System or the ROM is incompatible. Storage tip : Copy these
⚠️ Warning: This voids your warranty, can brick your device, and requires technical skill.