Pakistan formally rejects Su-35 as Russia denies AESA radar.
According to our sources Pakistan Air Force wanted an improved And customized version of Su-35 according to their operational requirements but Russia denied the integration of an AESA radar over existing platforms in favor of newly built Su-57 fifth generation fighter aircraft.
Also Pakistan Air Force required a more complicated and better EW/ECM system , But they rejected the deal after Russians didn’t agree to provide crucial technology.
An expected sale of Su-35 Fighter aircraft’s was being discussed between Pakistan & Russia since 2015.
http://advancepakistan.com/2017/08/19/271/
@Zarvan