Support Change to pal

I have update my nreal air.
Before update it supported pal.
Now after update only ntsc.
How can it support pal again?

Hi, the Air glass seems only to support NTSC, could you please tell me which version it is before updating? Then we can check if it is possible to revert back.

Hi, the version before updating was out of the box.
I don’t know the version number.
I only updated once.

Then it should not support Pal, the default refresh rate of the glass is 60, and it can be 72 under developer mode (in Nebula).