Disable AIM and basic display settings

After upgrading the firmware, start Megatune2.25 from the firmware's directory.

If the serial settings are correct Megatune said "Connected" in the bottom right corner.

* Disable AIM

**In Settings menu / Display Demo

***Set all bitmask to 255

* Basic display settings

**In Settings menu / Display settings

***Set Display Dim Time to 1 and Display Bright Time to D. That will cause the maximum light.

***The Units settings are to how the instrument shows the measured values.

***AIM: Aim input, set to Disabled

* Display modes

**In Settings menu / Display Mode

***There are eight different display modes, called slots. In this menu you can assign what to show in each slot. You can step forward in the display slots by pressing the button on the instrument. The default is Slot 1.