How To Get OPDA Certificate and Key for Symbian^3 – Nokia N8, C6-01, E7 and C7

Hi Nokia N8 Fans!!

This post would be useful for those people who are getting certificate errors during installation of Applications / Games and Themes on Symbian S60 3rd, 5th and Symbian^3 Devices including Nokia N8, Nokia C6-01, Nokia E7 and Nokia C7. Follow these simple and detailed steps to get rid of certificate errors for ever. You have to get your Certificate and key file against your smart phone’s IMEI number (*#06#) and sign your sis/sisx files with that certificate and key file. First you need to learn how to apply for your OPDA certificate and key file then you can use POT SIGN TOOL to sign sis/sisx files.

Detailed Tutorial


Click on the image to enlarge, if it is not clear.

Step 1:- Point your browser towards: http://cer.opda.cn/en/index.php?module=index
 It will open the website as shown below:

Click on Register at top right to register.
Step 2:- A registration form will open as shown below

Fill in the particulars as indicated above.

Step 3:- After the registration, wait for few moments, login form appears, you need to login again as shown below.

Now login with your login details.

Step 4:- Here you need to apply for the certificate and key file, see the screenshot below

Click on the Apply cer button as shown above.
Step 5:- Fill the form carefully as shown below

In the phone numer field fill it with 13 or 15 or 18 followed by any 9 digits.

Step 6:– Wait for sometime, almost 12 hours (Waiting time depends on the number fo certificate requests they have , it may vary). Check for the certificate and key file with this link MY CERTIFICATE AND KEY.
If they have developed your certificate and key files you can get them from the above link as shown below
Download the certificate and key files and sign your unsigned Application / Games / Themes on your PC or on your mobile. You can sign your unsigned sis/sisx files via POT SIGNING TOOL by OPDA.