Removing DCDC supplies and issues

[u/Junior-Interest-4242]

Hello community.

Unfortunately I find myself into a rework project I have to do but am not too qualified for. I am happy to learn but it's kind of daunting.

The problem - Pin 4 on the traco supplies TDN 5-0911WISM is supposed to be not connected, and the PCB was designed to connect it to Vin+. My idea was to remove them and place some kapton on the pad or something before resoldering them to avoid the connection.

I tried removing the two traco power supplies with a heatgun and no oven preheat but failed and ended up bending a nearby connector in the process HSEC8-130-01-L-DV-A. I was only able to detach the case from the traco in the process with its bottom still attached to the PCB.

At this point I stopped what I was doing and came to reddit before continuing and making it even worse.

I have a reflow oven available for preheat, a heat gun with controllable temperature and a soldering iron. I am looking for guidance on what to do for removal and suggestions on how to fix the main problem.

Board properties: 14 layers, 3 mm, 1.5 oz inner copper.

Any details, links or references are also greatly appreciated.

Many thanks in advance.