Welcome to our store! Please pay attention to our important tips:

1.When you decide to place order form us, please read clearly as below,if you have any doubt just pls contact us first,we will try our best to solve your problem.

2.If you want to place bluk orders,please contact us and ask for quotations,we will give you the best whoelsale prices.

Dear friend

please don't upgrade the board ,you don't know how to upgrade correct version ,because if you upgrade wrong version ,the board maybe has not network ,or can't  identify SIM card ,maybe cause network can't be registered ,if the motherboard comes out any problem after you upgraded ,we will not responsible for it ( if you send back the board and pay the freight ,we can help you to solve it) ,thanks for understand

if you really want to upgrade the board ,you can tell me you need version ,we can help you to upgrade you want one.