TV Globo has dropped Nagravision 2 now only uses Viaccess 2.6 this is why you cannot view now,
New transmission on 9 east 11938 H 27500 is also in Viaccess so you will not be able to view these until an update is released for your receiver or you subscribe.
TV Globo have switched off Nagravision2 Encryption, so the old Nagravision2 Key that has been in files for years is no good now. Channel is NO LONGER OPEN TO ANYONE. (Unless they have Official Card or Card Sharing or Possibly Non-Public EMU if such a thing exists!!!).
And TV Globo's other Encryption system Viaccess has not had any public EMU (Keys etc) released for it.