I used to be able to change the network mode using the diagnosis app using WP 8.1.1 on developer preview. To do this I type *#0011# in the diagnosis app and then press back -> 1 -> 7 -> 2 and then select the network mode from here.
However, I changed my phone csc to ATO to update to the latest firmware. Now, the diagnosis app does not work for me. Pressing the buttons in *#0011# part of the diagnosis app show no response.
So, anyone knows how to change the network mode to force only 3G connection.
However, I changed my phone csc to ATO to update to the latest firmware. Now, the diagnosis app does not work for me. Pressing the buttons in *#0011# part of the diagnosis app show no response.
So, anyone knows how to change the network mode to force only 3G connection.