[Woodcote]

Hi, I used this thread to fix my lock last week.The pin is located on the other side of the lock (not the side where the screws are, but on the internal side of the door - like the instructions say "turn yourself through 90 degrees, sit on the sill and look down the small gap inside the door (torch req') where the lock opening is." (I tried to take a pic to update this post, but the pin is tiny.)

Also, the tool is important, a simple screw driver/flat blade does not work as the top part of the door gets in the way. The 'tool' I used was an L-shaped bracket, which fitted down the gap and can then be leveraged to push the pin back into the lock

 

[Woodcote]

The pin in the picture sticks out more than mine does (and did)- it may be technique, are you pushing the'tool' so the pin goes in straight? Also your 'tool' does not look very strong, does it flex when you use it (therefore you cannot apply enough force to push the pin back in)?