clamping

I have some frets that are lifting. They're often partially lifting in the middle or at one end. But they don't seem to move when you try to press them down. I've tried hammering them with a fret hammer and that doesn't seem to do anything either. On a different bass with the same issue, I tried...

Hey everyone, I bought a second hand Ashton bass guitar, for about 90$. But when I brought it home It turned out to have a neck bow, which you will see in the picture. I contacted a lot of luthiers and they all offered very high prices. I don't have the necessary tools or any kind of experience...

So, my truss rod nut is maxed out on my Classic 60's Fender Jazz Bass. The neck is still a bit bowed, and would need some washers + lubrication (I'm planning on using vaseline) to function properly. I have never done this operation before, so I have one question: Is it ok to remove the neck...