Understanding the hardware is the first step before modifying firmware: Huawei Y6 Pro 2019 (MRD-LX2) Chipset: MediaTek MT6761 Helio A22. Base OS: Android 9.0 (Pie) with EMUI 9.0/9.1. Memory: Typically 2GB or 3GB RAM and 32GB internal storage. Why You Might Need MRD-LX2 Firmware