This topic covers the most common error messages you may come across while installing apps on your os9 phone and how you can solve the problem.
You cannot install os6, os7, os9 apps on os9.
Yep, there is nothing you can do about that one. So Get OS9 apps.



You cannot install majority of applications.
Cert expired
cert error contact the supplier.
required application request not granted.

HowProblem.com 2012