Thats an annoying problem with many of the chinese devices. Well, what you can do here is remove your internet enable SImcard and put some another sim, than go ahead with the said code . This time it should work if your mobile is compatible with any third party apps. As pugsly said, 80% of china mobiles wont allow any third party apps or games. You should also try this: How to install .NES games in China Mobile - Step by Step
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