How to use 1.3 inch IPS screen (from MaixCube) on the MaixBit?

Hello, I’m trying to use the 1.3 inch IPS screen (from MaixCube) on the MaixBit but the screen doesn’t start.
It shows up as black.

I tried to do the following, as suggested in the documentation, but it doesn’t work.
lcd.init(type=2)

Any suggestion? Thanks!