It worked!!
Thanks, Catire!!
In fact I didnt use this link to download the firmware, it was too slow. I used this instead:
http://goo.gl/3NKdEX
Downloaded the firmware, flash it with RKBatchTool. The language is chinese, but you can set it to English using the manual (
http://goo.gl/XH0eIs ) to navigate in the chinese menu.
I agree with you. The first post is too dangerours (even murderous!!). Should be changed.