1. Click Extract Here on archive: C510 layout_main - without logo.rar and move file (layout_main.xml) to Desktop.
2. Start A2uploader.
3. Turn off your phone.
4. Click button File System Tool on A2uploader.
5. Hold "C" from phone keyboard and put USB cable in same time.
And open TPA > SYSTEM > LAYOUT










6. Afeter deleting just drag & drop layout_main.xml from Desktop to same directory (TPA > SYSTEM > LAYOUT) and press Shutdown FS manager.
7. Disconnect USB cable and turn on your phone - now you haven't logo