Will my unlocked Blackberry Storm become locked again if I update device sofware?

[BondaJamesBond]

I've recently purchased an unlocked Blackberry Storm formerly from Verizon. I'm considering to update device software, so I want to know if it's safe to do so, or it become locked again

 

[BlkBear]

No, once the Subsidy Unlock has be done, it does not get "undone".