Wiring 2 gang 2 way light switch

[jamesab]

Hi, I've recently swapped my landing light switch (one at the bottom of the stairs, there is another at the top which I haven't touched) but I've only just noticed that the upper switch does not work and I've now deleted the pictures I took!

The problem switch is 2 gang and controls the landing light and hallway light.

Can someone help me with wiring from the attached photos?

Pic 1 is the upper switch which has not been touched - to clarify red/yellow in L1 and black/blue in L2

 

[Taylortwocities]

When you delete photos on a phone they go into a separate ‘recently deleted’ library. Usually they stay there for 30 days.
So you should be able to get them back.

 

[jamesab]

When you delete photos on a phone they go into a separate deleted library. Usually they stay there for 30 days.
So you should be able to get Ty eg m back.

Tried that, sadly, they're gone

 

[EFLImpudence]

Remove the link.

Hall light switch - Red/Black cable - Red in COMMON, Black in 1WAY

Landing light switch - Red/Blue/Yellow cable - Red in COMMON, Blue in 1WAY, Yellow in 2WAY.

 

[jamesab]

Remove the link.

Hall light switch - Red/Black cable - Red in COMMON, Black in 1WAY

Landing light switch - Red/Blue/Yellow cable - Red in COMMON, Blue in 1WAY, Yellow in 2WAY.

That's the badger! Thanks a lot!