I just figured it out.
If you are using A2Uploader, do not take out the battery after editing allowed language, customize.xml.
Just unplug and start your phone without taking out the battery.
This worked for me.
I used over 1 hour for this because I did always take out the battery after I made changes with A2Uplaoder.. It probably resette the changes I did about the languages.
Try this and give me a feedback of how it did work.
Good Luck!