How to Unlock BSNL USB Modem [Tutorial]

Many of you people thinking about how to unlock your bsnl 3g modem ? well i have a very easy solution for you guys.ok so ready ? here we go….
When i put an idea sim it will show like this…


Finally, I managed to unlock BSNL 3G data card without installing a third party application or reverse-engineering the original dialer application. 
1st you connect the netsetter device to PC and install the software provided by BSNL

after installation remove the modem and close the application. then follow this steps.

• The trick it to change only a single registry value. Please note, you are dealing with windows registry, so be careful. Locate the following registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Linktop3G

On the right-pan, change the Engineer key to 0 and it’s done. Create new connection profile for your preferred operator, make it as default and connect..Done!!!..

IF you are not familer   with windows registry edit 

follow this step

in xp/windows vista / windows 7

press “window button (between ctrl and Alt)” plus ‘R’ button at same time…

then a small windows opened like below.. 

type regedit on it and hit enter

then a window will open

follow these step’s

expand the HKEY_LOCAL_MACHINE by pressing the + button beside on it..

find the Linktop 3G and click on it then on the right side of the pannel some Hex words are displayed like the figure..

then double click on the ‘engineer’

then change the value 1 to 0 (like figure changed)

then press ‘ok’

Done close the entire registry window and plug in your 3g modem with any sim..

then you should add new sim internet setting on –>connection–>add..

Setting For All Network Operators:

>> MTNL 3G

Postpaid: APN: mtnl3g

Prepaid APN: pps3g

>> AircelAPN: aircelgprs

Access Number: *99***1#

>> IdeaAPN: internetAccess Number: *99***#

>> Tata DocomoAPN: TATA.DOCOMO.INTERNETAccess Number: *99#

Network Mode: WCDMA Proffered

>> AirtelAPN: airtelgprs.com

Access Number: *99# 

>> BSNL 3GAPN: bsnlnet

Access Number: *99# 

>> RelianceAPN: rcomnet

Access Number: *99#

Please Comment if you have any problem!