For users looking to restore their device, the stock firmware is essential for fixing software issues like being stuck on the logo (bootloop), system errors, or a completely "dead" device. This device is the 3G version of the Y3II, powered by the MediaTek MT6582 chipset. Firmware Details Model: Huawei Y3II (LUA-U22) CPU: MediaTek MT6582 Android Version: 5.1 Lollipop Typical File Size: ~950 MB to 1.3 GB Flashing Guide (Step-by-Step)