2. Fill in the registration form as shown in the image below
3. Once you've registered, log in and click on the large orange 'apply cer' button. Fill in your phone's details (you can find your IMEI number by typing in *#06#)
4. After a few hours or days, check back tohttp://cer.opda.cn/en/index.php??module=indexand in "My Certificate" you should have a green checkmark along with a download link for your .cer and .key files. Drag and drop those to your desktop.