Tbh you need to verify the colour range of the file, I was under the impression the 5 had a wider colour gamut displayable, if so its perfectly possible the video has a wider gamut than the iPad can display, but the 5 displays it correctly.
If a true fault the 5 should show a magenta cast on a white display (ie the Hello screen on a new one), was that the case?
If a true fault the 5 should show a magenta cast on a white display (ie the Hello screen on a new one), was that the case?