Rear View Mirror Problem

My rear view mirror was lose so unclipped it and tightened up the bracket, tried to put the mirror back but wont go back,
theres a latch spring but for the life of me cannot get it to go back, how do you get it back ?

Thanks for any help

Lots of perseverance.
I did exactly the same and it took me 30 minutes of pushing shoving levering and fiddling before I got it to clip back on.
They are designed to breakaway in a crash but not to fall off during rough off road driving so the spring clip arrangement is very stiff. You could try a small dab of vaseline to help it clip back in.

Do you locate the bottom fixed clip in first and give it a belt ? I will put some Vaseline on

I got it back in, I checked Defender 90 CD manual I had which says locate the bottom lug 1st, would not go in, if you locate the spring catch 1st and press upwards to compress the spring lug, and then push forward it snaps into position.

Cheers