If the touchscreen, network, or camera of a Huawei Y3II LUA-L23 mobile does not work after flashing the firmware, it indicates that the drivers or firmware components are installed incorrectly. In such a situation, the DA file is used to reflash specific sections, overwriting the partitions in a precise and secure manner. This process can only be performed by experts because a slight mistake can cause the mobile to be hard bricked.
Sometimes region-locked firmware is installed on Huawei Y3II LUA-L23 mobile due to which the mobile does not work on local network. In such a case, with the help of DA Auth File, regional partitions can be removed or changed so that the mobile works with any SIM. This process is also called carrier unlock or region patching and it is also possible only when DA file is provided.