Flash then Unlock or Unlock then Flash

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http://forum.xda-developers.com – Which would be the best to do first guy, flash a SIM locked Orange 920 with debranded software then get the SIM unlocked removed or wait for the unlock code to come through, unlock the phone then flash new firmware? The reason I ask is I know it will take a few days for the code to come through and I've heard stories of NCS being shut down. I've flashed my 800 and 820 and I know that flashing does NOT remove the SIM lock. Any advice would be really helpful! Thanks! (HowTos)