first lighting mod, having issues

[94383Z71]

 So as I've bee working on swapping parts around and such, I've noticed that there's almost a baseplate of solder that glues to the board and you solder to that. Well I've had several of mine come off when working on different components. Is there anything I can do to fix this or do I need a new board? 

This is the first time I've really done more than disassembly and paintwork. I have alot of soldering experince, just not on these. Any help is appreciated. Thanks!

[Famas]

first off you havent really explained what your modding and some pictures would be great

[94383Z71]

Oh, my bad. In particular, it's happened on the ring of light and on the left thumbstick, since I had to put a new one on.

Its on their solder points where they join to the board itself, and you can basically see the composite material of the board and you can't get solder to adhere to it and get good connection. I'll try to get a pic.

[FOOKz™]

Once a solder trace gets pulled off its near impossible to put them back on. The best thing you can do for now is scratching the green stuff off and soldering to the copper still attached to the board. Even then its very tricky to do.

[Modded Matt]

as fookz said this is a tough one. follow the trace to the via (small hole), scrame the green down to the copper carefully and solder there.