My ROM Dandroid2.52-GE-4.4-12072013-INTL.zip
I think it should work on others.
Since I was unable to load Qualcomm Diag Mode by *#7284#.

My workaround:
Qulacomm USB drivers should be installed on PC first. Native Sumsung drivers should be unistalled.

1. Install phoneutil.apk (attached)
2. Install QuickShortCutMaker
3. Run QuickShortCutMaker -> find PhoneUtil -> expand it and choose "com.sec.android.app.phoneutil.SerPortUartUsbMSM89 60" as a shortcut. Shortcut will be placed on Home Screen
4. Disconnect phone from PC.
5. Run Shortcut. Choose MODEM ->Qualcomm USB Settings -> DM+MODEM+ADB -> Ok.
6. Connect to PC.

I received 2 unknown devices:
Samsung_device. (CDC composite).
For these devices i manually chose QC serial driver:
Manual Driver Installation -> Chose preinstalled driver -> Ports (COM+LPT) -> Qualcomm Incorporated -> Qualcomm HS-USB Diagnostics 9004.
Do it for both unknown devices.

For MODEM - my opinion is also to use QC Modem driver (see pic)

After QXDM will work.