Radio ? unlocked ?

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Hi im new here and i have a qtek - Wizzard (WIZA100) and im wanna put on it wm6 and try diferents versions of it BUT...

atfer read some post i see my wizard if G4 cuz startup screen with tree "0" (000)
and looks like its pretty hard to unlock it... i already check some post of that..

I know i need to see if my wizzard if unlocked.
But how i can know that? how i know if it is unlocked or locked?

Another question:

What is radio? what is the work of that ?how to disable it ? cuz in a post to unlock says disable! but what it is ?

What is Ext rom??? what is the work of that ? for what ??

If someone can tall all about those plz !

If u can tell any other thing to help ! thx

man u need to do some serious searching in the forum, thats alot of info ur asking for and all of it lies in these very forums....this is where I started http://wiki.xda-developers.com/index...ame=HTC_Wizard and I havent had to ask 1 question yet because this forum is very thorough if u take the time to look.

i keep reading and dont find where i will know hwta Radio means ? and detail stuff ai just unlock my ExtROM but dunno what ill do with that!
btw tell me how to know if my device its blocked!!! or not!

Thx ! i already brick and make it back to life my wizzard its now with wm6 cross editiong thx