My phone was repaired by the authorized dealer in Sri Lanka due to a software malfunction.The service center had replaced the mother board as the solution.Now my phone has the 5.0 operating system.I need to Update the operating system to 6.0 version.But i can not do it because sony update center does not allow to update my phone in to latest version.It says that my phone has the latest version though it has a 5.0 version.
