try to follow these instructions:
1) dismount wheel from bike and take away both tube and tyre (or tubeless tyre - it depends on bicycle)
2) mount wheel back
3) take a soft-tip pen or marker (make sure you use one that can be erased from metal after you finish repairing)
4) turn your bike upside down and place marker fixing it with one hand near the rear wheel fork as close to the rim as it is possible but not touching it
5) start spinning the wheel (one full circle is enough)
6) in the marked section of rim (where your pen left marks) loosen spokes (with wire tightener) that go to the same flange of the hub and tighten spokes that go to the opposite flange (la collerette) of hub. The spoke you had to loosen the most is in the center of the mark left by pencil (1-3 turns - depends on how bad the wheel is uncentered). While the spokes near the ends of the line need to be loosen only (0,5-1 turn)
7) After finished abrade spokes edges that stick out and can potentially pierce the tube (use the file (la lime) or broach file.)
!!!remember that when tightening spokes instead of loosening tube and tyre (or tubeless tyre - it depends on bicycle) must be taken away or the edge of spoke will pierce your tube through!! After finished abrade spokes edges that stick out and canpotentially pierce the tube (use the file (la lime) or broach file.)!!!