Cant Solder the gold flat points

[mollar]

Cant Solder the gold flat points.

I got all the rest. I got a few of the gold points and they are solid but i cant get the rest. Cant get anything to stick.

I already scrapped the coating off.


I dont understand why some will stick no problem and others wont at all.

Im getting a freekin headache doing these last ones

Ive read solder tips already

any ideas anyone?