Originally Posted by Brent.Wall

I tested the 4610 on the IPO a couple of months ago. Out of the box (with v1.99 firmware), all of the functions, including the display, worked as expected. The only problem I noticed was an occasional studder dialtone when using the speakerphone. Thinking that the more recent firmware may resolve this problem, I upgraded the 4610 to v2.0 firmware. This indeed seemed to fix the studder dialtone problem but rendered the display inoperable. You can see the boot messages but the display is blank once the phone boots.

I can't back-version it because I cannot find version 1.99 of the firmware.