O2Security Sales, Service and Warranty Support is provided by the following:

 

China:

+86-400-011-_8600
fangzhuqing@jstarsoft.com.cn

liuyikai@jstarsoft.com.cn

 

Taiwan:

+886-2-2598-_8845

Alvin.lin@itcheck.com.tw

oscar.huang@itcheck.com.tw

anthony.lin@itcheck.com.tw

 

USA:

o2s-post-support@o2micro.com.

 

South East Asia:

o2s-post-support@o2micro.com.