[dkg4ever]

if i switch my phones os from tmobile to att will my bb pearl 8100 lock again. I have no idea what i did with the unlock code either? Or is it even worth it?

[jackm3]

be sure to remove the vendor.xml file, and you shouldnt have any problems. Im using an ATT 8310 on the TMobile network...and I upgraded to 4.5 ATT file. No problems

[Heresy]

No it will not be locked again. As jack said make sure you delete the vendor .xml file. Link in my sig for proper upgrade/downgrade instructions.

[jeffh]

Unlocking is a one-time, irreversible event. You can't accidently relock it.

[jackm3]

I can understand why dkg4ever asked, tho.... some motorola "monsterpacks" can lock your phone back..... Its a valid concern

[jeffh]

It may be a valid concern for phones other than BlackBerries, but for BlackBerries, unlocking is a one-time, irreversible event.

[andyahs]

I can understand why dkg4ever asked, tho.... some motorola "monsterpacks" can lock your phone back..... Its a valid concern

Yet another reason to love our BB's..........

[dkg4ever]

thanx guys you've helped a bunch...

[Snouwsie]

I am really interested in buying a Blackberry Strom. I live in the UAE, and they haven't released it here yet. But they're selling unlocked ones so that it can work on any service provider. Does that mean that I could still update the software and it won't lock again?

[danielx]

Yes it won't as long as u make sure u delete the vendor xml file before u upgrade

Posted from my CrackBerry at wapforums.crackberry.com

[blueovalracer]

OK, so I need to delete vendor.xml. How do I do that? Going to buy one for use on AT&T. Any functionality not going to work?

[jeffh]

danielx's advice is incorrect. The vendor.xml file has nothing to do with the locked / unlocked status of your phone. It is only necessary to delete the vendor.xml file from your PC if you are installing an OS from a carrier other than your own. As is stated above, unlocking is a one-time, irreversible event.

[jeff.parent]

So what you are saying is if I have unlocked my att BB and use it on att's network with an att os I don't need to remove the vendor.xml?

Posted from my CrackBerry at wapforums.crackberry.com

[jeffh]

That is correct. You do not need to delete the vendor.xml. It won't hurt anything if you do, but it is not necessary.