Replacing a 2D model with smaller version

Hello,
I created a 2D character, imported him into Unity, created bones and an animation. Now I want to replace the character with the same character, but 10 x smaller. I scaled an image with other programs and now I have another file (layer names are the same, everything is the same, but smaller). How to replace it in Unity? I'd like to keep bones and the animation. Is it possible?
I tried to replace file in Assets, but the change doesn't work properly. Bone arrangement and body parts are completely deformed. I tried to Copy and Paste options in Skinning Editor, but when I paste to the new character with Mesh option turned on, many body parts appear with bones in crazy arrangement. When I paste to the new character with Mesh option turned off, then something theoretically happens, but I don't see any change.
Is there any way to replace the character with his smaller version keeping bones and animation?