Pues si , gracias al maestro Dejan Kaljevic ya se pueden liberar desde casa y de forma totalmente gratuita varios modelos BB5 sean del operador que sean.

Los modelos en cuestión son todos los que incorporan la CPU RAP3G v2.x y son estos:

6630
6680
6681
N70
N71
N90
Es necesario el cable DKU-5 y la aplicación contenida en BB5.zip que os adjunto a continuación.

Las instrucciones os las pongo en inglés porque no las he podido encontrar en español:


Cita:
******* CONECTION ******


For this program you need Fbus cable like DK5, CA43 or similar conected to ports from COM1 to COM9.
First unpack zip fiole and strat install.bat

In file "c:\bb5_unlocker\logs\bb5_unlocker.cfg" with any text editor change your COM port setings!


******* USING ********

Program can be started successfully only if is COM port in file "c:\bb5_unlocker\logs\bb5_unlocker.cfg" adjusted properly.



READ PHONE:
***********
Reading info data from phone and making BACKUP file for that phone( Field 308,1).

IMPORTANT DO NOT delete or modify that file because can save your *** if something goes wrong.


WR BACKUP:
***********
With that function can write backup file with Field 308,1 if exist in BACKUP folder.

MAKE LOG:
***********

Function for making log file . With that log file BB5_calc.exe calculating codes for unlock.
Working with BB5 phones with RAP3G v.2.x (6630,6680,6681,6682,n70,n90).
IMPORTANT phone must be without Sim card.


SP UNLOCK:
***********
Making unlock with codes calculated by BB5_calc.exe.



SP UNLOCK PROCEDURE


Connect cable to PC and be shure com port is adjusted properly
Start BB5logunlocker.exe
Connect phone and switch on without Sim card.
press button READ PHONE and wait until get the message DONE.
If is everything correct you will see info from phone on screen.
Pres button make log and wait until get mesage done.
Log file is in folder LOGS.
Start BB5_calc.exe to make for you PSW file in folder PSW
Press button SP UNLOCK and unlock your phone.

That is all folks



If you got unlock codes from your provider and you used all yours 3 attempts
to enter code via keypad then do the following:
into dir "c:\bb5_unlocker\psw" create a file "aaaaaaaaaaaaaaa_BB5.psw" where is "aaaaaaaaaaaaaaa" enter your phones imei
then in that created file enter in the files start "#pw+bbbbbbbbbbbbbbb+c#" where is "bbbbbbbbbbbbbbb"
enter your unlock code and where is "c" enter your logs level number (1-7).
save the file and use "SP UNLOCK" function


sacado de otro foro solo informaros
saludos