Iphone SE 2020

Anyone else had an issue with the Iphone SE 2020 just shutting down completely. Ive taken it for repair several times as a result, the engineer said he's seen a number with the same issue. A multi plug inside the phone just comes away shutting it all down. Simple fix to push it back together but after a short time any knocks etc and it just comes away again. Some times it takes weeks some times days last time hours!! He seems to think the issue is with the connection onto the mother board. The plug can't be glued or packed in place the only long term option is apparently to replace the mother board but the clip system will be exactly the same as existing and there is no way to know if it's the plug or the socket that fails. Phone is just over a year old, new MB £300 roughly. Anyone any suggestions or ideas ?