I was going to surprise my grandfather by putting a new sound file on his Reading Crusader for a more updated sound, well i mixed up the sound files, the engine is a 3v and the new sound was a 5v, and now the train doesn't have any sound at all, and it doesn't start up, so i found a Reading 3v sound to match the engine and followed the directions and the loader software said I had a successful upload, but the engine did the same thing, it didn't start up and it didn't have any sound.
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