I need to ask exactly what it is you would like to achieve? You've previously shown me a photograph of that BT52A and I'm sure I explained how the wires are connected.
Look at the incoming service feed cable, the thicker grey cable whose wires connect to the lower four terminals. From left to right the wires' insulation are coloured orange, white, green and black. The orange and white wires are pair number one. The green and black wires are pair number two.
Now look at the cable that goes through the wall into your hallway, the thinner cable whose wires are connect to the upper four terminals. From left to right the wires' insulation are coloured blue, orange, green and brown. The blue and orange wires are pair number one. The green and brown pair are number two.
Everything is connected correctly for two separate service feeds to the house. At some time in the past both were used. I cannot say, just by looking, which pair is currently active with your telephone and broadband service.
Making your own adjustments will not improve anything and has the potential to make things considerably worse.