Thank you for your response.
I just checked the trim settings and it looks fine.
When I push the throttle all the way up, the throttle position shown on the screen is at the top of the left square.
When i push it all the way down, the throttle position shown on the screen is at the bottom of the left square.
Likewise for the middle position.
I have been flying in Acro mode and it is showing as on, the 3D flight mode is not selected.
Is there anything else that I can check? Thank you.