AT&T's policy was not to allow non-market apps, so they locked that setting in Android on their stock ROMs.  However, one of my friend's got an update on her Inspire which allowed this to be set by the user.  Check to see if there are any Android updates for that phone, but if not I don't know of any way to get around that setting in Android without a custom ROM that allows it to be set.

Andrew Warren-Love

On Tue, Sep 27, 2011 at 13:57, Shaunak Bhatt < ssbhatt@ncsu.[redacted] > wrote:

Yeah but the things is that I am not getting the option and I saw on one Internet forum that the AT&T blocks it so that user doesn't install malicious applications.

On Tue, Sep 27, 2011 at 1:51 PM, Jeffery Mewtamer < mewtamer@gmail.[redacted] > wrote:

On my Samsung Acclaim, I have to go to Settings > Applications and check the Unknown Sources Option in order to install non-Market apps. I would assume it would be similar with other Samsung phones running Android.

On Tue, Sep 27, 2011 at 1:40 PM, Shaunak Bhatt < ssbhatt@ncsu.[redacted] > wrote:

Hi all,

I have made an android application which basically can not work on SDK as it measures RSSI values and uses it for some other purpose. I am trying to install it on my friends AT&T galaxy phone but its not getting installed because it is not registered with android market place. Can anyone point me in the right direction.
Also i have tried removing the sim card and tried to install the app but still it is not working. Please Help.

--
Shaunak Bhatt
Graduate Student
MS in Computer Networking
North Carolina State University, Raleigh

--
Sincerely,

Jeffery Wright
President Emeritus, Nu Nu Chapter, Phi Theta Kappa.
Secretary, Student Government Association, College of the Albemarle.

--
Shaunak Bhatt
Graduate Student
MS in Computer Networking
North Carolina State University, Raleigh