Getting an error message "please complete the action required by signal" during the installation of theSignal application. This happens at the point when I have to verify my phone number. I click OK to confirm my phone number and get a verification code, but the error message appears instead. I did uninstalled app few times, rebuted the phone, nothing helps. I cannot install application. I had it installed before the mandatory upgrade I was asked to do by the application. Please help!!!