If you find certificate error when installing application to your mobile just get OPDA certificate free for your mobile.
1. Register your account. It will take 1-2 min. for registration click here.
2. Login to your account with user name and password.
3. Click on APPLY CER.
4.Feel forum and submit application
5. After 5-6 hrs. login to opda site and you will find your OPDA certificate and key are generated. download it and save to your mobile.
6.Then download free signer for signing your application.
