Should you be experiencing issues with MMS on your Samsung Focus then this small fix may be just what you need. WPCentral Reader Seth has located a quick solution for his MMS problem, which occurred post-updating to Mango RTM (leaked ROM). He reported that the fix does indeed work and was tested on a Samsung Focus attached to AT&T.

Here are the steps one must take to greatness:

  1. Enter 40*047#3 in the diagnosis app.
  2. AutoSimSetting will be reported as now enabled, restart your device.

We're not currently aware of this fix working on the Omnia 7 handset or with unlocked devices. Let us know in the comments what outcome you get should you perform the above.

Source: XDA Developer Forum (post), thanks Seth for the tip!