No live camera view to android tablet from Mavic Air

I have the original Mavic Air drone - it’s just under 2 years old. I purchased a 10" android tablet (brand: Using the DJI GO 4 app, this controls the aircraft flight perfectly, but there is no live camera view. The gimbal control works, as do all the other functions. In the past I have used a Samsung Galaxy A20e phone, which has no problems with the live camera view. The aircraft firmware is fully up to date. Any help much appreciated, since I purchased the tablet specifically for flying the drone.