Unity3d Facebook SDK login with browser

Question

I am creating a game application using Unity3d tool. In that I shared some texts and photos in Facebook. So that I have used Facebook SDK(Prime31).

Case 1: Facebook app already installed

    If login the facebook from my app, the facebook application's login screen is opened.

Case 2: Facebook not installed

    If login the facebook from my app, the browser will open the facebook login screen.

My question: Is it possible to open the browser window for facebook login even the Facebook app already installed ?

Reason: If I use the case 2, the facebook login is success. But If I use the case 1, the facebook login is failed and it shows the "Invalid access token error". This is happened only in the "HTC" mobile devices. So I want to use case 2 even facebook app installed in the device.

If possible Can you give me the steps to do that?

Answer 1

You better ask them here instead of asking people on StackOverflow. Ask them on forum, PM or Email them on their page.

Answer 2

Only Facebook's SDK chooses how authentication occurs. We couldn't choose that one.

Finally I got this answer from Prime31 plugin forum.