Remote will not unlock doors.

[Ianbrown]

Hi all. My 2014 Yaris’s key fob will not lock or unlock the doors. Have changed the battery, checked terminals of push buttons in the fob are all good. Have checked all fuses and gone through the remote set up with opening and closing the door and key in the ignition switch. Nothing has worked.
Please can anyone help with this one please. Thanks. Ian.

[Billiam]

Have you tried flipping the new battery? Perhaps it's in upside down.