I haven't setup my voicemail yet on my new Sprint HTC Hero.
Here's the problem I'm having:
I click on the Voicemail Icon, and there's a pop-up message that states:
^ Check for upgrade.
An upgrade is now available
When I tap on this "Upgrade" button, I get the following warning:
^ Install blocked
For security, your phone is set to block installation of applications not sourced in Android Market.
I get a warning message again when selecting to change the settings and checking the box allowing it to do so.
What is going on here?
I can't use, or setup, my voicemail?
I've gone ahead, changed the settings to allow the non-Android download, checked the box to change these settings (I should probably uncheck it now that the new voicemail has been downloaded), and now the voicemail is working.
I assume this was okay to do because it was probably an HTC voicemail software upgrade and that's why I had to accept the warning of downloading something "non-Android" at this time.
Also, should I go back into settings and change:
Menu --> Settings --> Applications (Manage Applications) --> Unknown Sources
Should I uncheck this box now?
It was unchecked before, but I checked it to download the voicemail upgrade.
I think the best thing to do is switch it back to the default so I get the warning about non-Android downloads
Correct? Concur? Agree?