I too am in the same boat as you and from what I can gather after read snippets here and there is to
flash back to original firmware then update your console via live ,then read and save new FW , then reflash with LT-1.9 when available = best protection available ATM .
You Dvd key will not change ..so you can skip the probe ...but you still will need to read and save your new updated firmware in jungleflash for future reff.
Remember Dummy.bin is not the same as OFW so you need to spoof the info from your Dummy to original .......if you have your full original firmware dump ,then just refash, update,re-read and save,then flash LT-1.9.
I only have a dummy.bin file (most peeps will be in this same boat) from my sons liteon flash so I think it`s just a case of
1: Load dummy.bin file via source in Jungleflash, load original firmware in target and hit, spoof source to target, save this file and flash back to liteon.
2: Update via live.
3: Read my new firmware via jungle flash and save in a safe place.
4:Flash back liteon with LT-1.9
5:Cross your fingers and hope for the best ..when the next ban wave arrives....
Best Regards
Rigger66