Does the Samsung Galaxy S2 support DC-HSDPA I have a Samsung Galaxy S2 running Cyanogenmod 10.1.3 which equates to Android 4.2.2. 

I would like to know if my phone will support DC-HSDPA or not? Will it just work?

Is there anything I would need to do in order for it to support DC-HSDPA like upgrade the RIL or is it just not capable at the hardware level?
After some testing over the weekend with a service provider who provides DC-HSDPA I can confirm that the Samsung Galaxy S2 does not support the protocol.