  The RENO experiment recently reported the disappearance of reactor electron
antineutrinos consistent with neutrino oscillations, with a significance of 4.9
standard deviations. The published ratio of observed to expected number of
antineutrinos in the far detector is R=0.920 +-0.009(stat.) +-0.014(syst.) and
corresponds to sin^2 2theta13 = 0.113 +-0.013(stat.) +-0.019(syst), using a
rate-only analysis. In this letter we reanalyze the data and we find a ratio
R=0.903 +-0.01(stat.), leading to sin^2 2theta13 = 0.135. Moreover we show that
the sin^2 2theta13 measurement still depend of the prompt high energy bound
beyond 4 MeV, contrarily to the expectation based on neutrino oscillation.
