problem on game compilation for Android in Unity 5.0.0f4

Hello, I made a game in Unity 5.0.0f4, and by mistake I tried to open my resource files with Unity 4, (I have both versions installed in my PC), then a message appeared indicating it was migrating my project into Unity 4 version. I interrupted this process, killing it, then I opened my project with Unity 5.0.0f4, no messages were shown, everything appears to be fine. Then I made a little change to my code, just a change on a string message. I saved my scene and project, and compiled for android. Then problems started, I saw that player settings were automatically reset to original values, once I finished setting values, compilation completed, I saw that my game isn't the same anymore, effects I made, lights I used to have are gone. Some scripts are not working in Android. It's like quality settings were totally changed (which is easy to fix) but is more than that. When I run my game in PC, behave as is expected.

Please I need your help! thanks.