Quetion about IMEI/SIM Unlock

[ordo ab chao]

I've tried searching and have found no answer. Any help would be appreciated.

I recently SIM unlocked my phone after experiencing the "data crash" "Sim locked" problem that many others appear to be having. Before unlocking, I reverted back to the original shipping ROM. I'd still like to try different ROM's.
Will flashing to a custom/cooked ROM or an Official release ROM re-lock the phone?

[summiter]

I've tried searching and have found no answer. Any help would be appreciated.

I recently SIM unlocked my phone after experiencing the "data crash" "Sim locked" problem that many others appear to be having. Before unlocking, I reverted back to the original shipping ROM. I'd still like to try different ROM's.
Will flashing to a custom/cooked ROM or an Official release ROM re-lock the phone?

It will not.