(Huawei update.app unpacking tool. The unpacked file name is inconsistent with the common ROM! File14.mbn, file16.mbn, and file20.mbn are all system.img files; Appsboothd.mbn. is recovery.img; Splash.raw565 is boot img。 Extract files: 1. Install Linux_ Reader_ 69809。 2. Run the installed DiskInternals_ Linux_ Reader。 3. system file extraction. Set file14.mbn, file16.mbn, file20.mbn in the output folder. Drag to DiskInternals_ Linux_ In the Reader window, click Next -- select the path to be stored, and then continue to Next, and finally Finish)