I was thinking of using some glue THEN I noticed that if I move the cable plugged into the connector the pins move !!
There is no solder at all on the 2 pins on one side of the board

On the other side there is a ball of solder on the pin BUT it is NOT soldered to the pad on the board, the ball on the left moves freely if the power lead is moved, the blob on the right seems to be held in place for now by the flux.


All the larger discrete components which appear to be hand soldered all have bad solder joints or cold joints, for example the pins for the SMPS


Assuming I decide to use this board, I will have to remove all the solder blobs, apply flux and solder them properly.