Replacing c:\sysdata\startup.mp4 file (which is a sepecific mp4 file and includes boot animation) with any file, causes hard-brick on Sony Ericsson P800, P900 and P910 devices.
Replacing c:\sysdata\startup.mp4 file (which is a sepecific mp4 file and includes boot animation) with any file, causes hard-brick on Sony Ericsson P800, P900 and P910 devices.