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Once you finally see the LineageOS setup screen, you'll likely notice a peculiar issue: the keyboard doesn't seem to be working for text input. This is a known quirk of this specific build. The ROM uses a special app called "Pastiera" to manage the physical keyboard, but it isn't active during the initial setup.

You are now in the LineageOS Recovery menu (blue background).

: SELinux and encryption may be disabled in current unofficial builds. Installation Overview

Before you begin, it is essential to understand the risks.

This is not an official process. It requires modifying your device's core system software and carries inherent risks. It's essential that you understand the following before proceeding:

The BlackBerry KEY2 remains a cult classic, cherished for its tactile physical keyboard and sleek productivity-focused design. However, as official software support from TCL has ended, many users find themselves stuck on an outdated version of Android.

Reviving the Keyboard Icon: A Complete Guide to Installing LineageOS on the BlackBerry KEY2

Prerequisites and preparation

Note: You may need to use fastboot flash boot recovery-athena.img if the recovery partition is locked. Step 3: Install LineageOS via Sideload