Help removing FRP from T280 Tablet

Hi guys

I need help removing the FRP from a T280 tablet

Ive tried different cables and a different computer – still the same problem!!

The tablet does pick up on the computer – as I can go into the file manager from the computer

Here is the log

Operation: Reset FRP
Selected model: SM-T280
Software version: 26.9

Waiting ADB device… timeout
Phone not found
First activate ADB
Done with Samsung Tool PRO v.26.9