Mobile hacking

                     

Hacking/Unlocking SIM card

By Abir Atarthy

Many of our readers  frequently asks me  how to unlock sim card? So here is this article for  them.

If you enjoy reading this  and find it is useful pls. do leave your comments. So let's get into the topic now.

What is simlock ?

A SIM  lock   is a capability built into GSM phones  by mobile phone manufacturers.  Network providers use this capability to restrict the use of these phones to  specific countries and network providers.

What sorts of lock are  there?

 1. Lock phone to  SIM card. 
If your phone is locked to the SIM you cannot use  any other SIM than the one you have: SIM broken makes phone useless. A SIM Card  Lock is a lock programmed into a mobile  phone which  only allows one company's SIM to be used in the phone. The reasoning behind this  is to keep your custom to that network. Simlocks are also referred to as SP  Locks or Network locks. Once your simlock is removed you can place any  (dependent on phone model) SIM card into it including foreign networks if you  take the phone abroad.



2. Lock phone to Operator (Network or Service  Provider). 
If your phone is locked to an operator, you can  use any SIM from this operator in your phone. You can switch between contract  and prepaid as you wish, but not to a different operator.



 3. Lock phone to CODE (Product Lock or Offer  Lock). 
If your phone is locked to a code, the phone  checks a special "password" (GID) on the SIM that must match your phone.  Providers often use different passwords for contract and prepaid.



So unlocking  is: Removing the locks on the phone so you can use the phone with any  compatible SIM Card. Unlocking will allow you to use other service providers'  SIM card. For example if you have an ABC GSM  phoneyou can only put in an ABC SIM card, but if you unlock you  can put in DEF XYZ, etc.



How can I verify whether my phone is SIM  Card Locked?

 If you place any  card other than the one that the phone accepts, then you will get a message such  as 'Incorrect Card', 'SIM Card not accepted', 'Enter Special Code', 'Enter NCK'  or similar.


  So unlocking is tampering with the  software?

 It can be, most  programs to unlock on the internet change some data in the phone software other  just make a log and calculate unlock code. You will have to type the unlock code  with special code in your phone to unlock it.


  Why should you upgrade your phone?


# To get rid of software  bugs
# To get new/extra functions
# To improve existing features



DOWNLOAD UNIVERSAL SIMLOCK REMOVER HERE

http://www.ziddu.com/download/2809072/usr-gsm-support.zip.html

How to unlock mobile  phone?

Why unlock a phone?

Unlocking is the opening  of a phone to allow it to use any network, and removing the restriction that the  original network placed on there. Several reasons for doing this are: Cheaper on  another network, the phone is  cheaper on a network but you don't want to use that network, the phone is moving  country or a person just want different networks open on their phone.
  There are a lot of phones on  the market today that cannot be unlocked yet, and there are a lot of people  scamming and making money from this. I hope to mainly cover the basics in this  article, if you have any questions that aren't covered, please comment me and  I'll get back to you.
  Also, please remember most phones cannot be  unlocked for free. A lot of time, dedication and work go into the development of  software to give you the freedom to escape your current network, so don't be  surprised if the only answer you get is, "See a professional to get this model  unlocked".

    Nokia
There are three  major groups for Nokia's as far as unlocking is concerned.


DCT3

 All DCT3 phones  can be unlocked remotely provided that the codes haven't previously attempted.  If they have, you'll need professional tools to get them unlocked, I recommend  paying a specialist to do it (much cheaper then buying the kit) if this is the  case.



  DCT4
All DCT4 phones  can be unlocked remotely provided that the codes haven't been previously  attempted. If they have, you'll need professional tools to get them unlocked, I  recommend paying a specialist to do it (much cheaper then buying the kit) if  this is the case.



  BB5
Most BB5 phones  have been cracked or are close to being cracked. There are no BB5 phones that  can be done by code, BB5 phones include:

  - Nokia 3250 5200 5300 5500 5700
- Nokia 6125 6126 6131 6136 6233 6234 6270 6280  6288 6500 Classic 6500 Slide 6630 6680 6681 6682
- Nokia 7370 7373 7390
- Nokia E50 E60 E61 E62 E65 E70
- Nokia N70 N71 N72 N73 N80 N90 N91 N92 N93 N95

  List gathered from various sources, if your model  isn't listed here and is fairly new, it's safe to assume it is BB5. If you are  still unsure, please post and ask, but make it clear you have looked at this  list . The current process is risky, involved, usually expensive and very  difficult for these models, still best to try through your operator. Please note  well that the unlock not only depend on the model number, but the version number  too. To get these phones unlocked, visit a local unlocking centre or contact the  guys at nokiafix.com for more details.



  Sony Ericsson
Most SE phones  can be unlocked, however I don't know of any code generators, so they must be  done via cable/software. I highly recommend taking these to professionals that  insure against damage, as even I get these wrong sometimes.

Major groups in Sony Ericsson are:
DB2010 - CID16
DB2010 - CID29
DB2010 - CID36
DB2010 - CID49
 DB2020
CID49 can be done without issues
CID51 may need to be re-flashed, hence data loss
CID52 can be problematic, but usually fine
CID53 same as CID52



  Motorola
All motorola's  that I know of can be done, however some are more complex then others. Motorola  codes are not generated using the IMEI, but they can be obtained using it. I  personally have access to a code record system for 2G handsets, however I cannot  generate them, and this is a paid service. Otherwise, feel free to post for more  information on unlocking yours. As a general rule though, codes are not free but  depending on your model there may be unlocking software available (again, not  necessily free).


  Samsung
Some Samsung's  can be unlocked using generic codes. However, these only seem to work on older  models, and can kill phones if not used properly. Otherwise, all other models  can only be done by professionals.

How To Unlock  Your Own Nokia Phone? 

  Typically when you purchase a cell  phone, the company that sold you the phone (ex: AT&T) 'locked' the phone before  you bought it, so you can only use it on their network. This means that you  can't use your phone on any other network, even if you change the SIM (which is  an abbreviation for Subscriber Identity Module) card. The SIM card is the little  piece of plastic that identifies your phone to the cellular network. Changing  your SIM card to have your phone work on another network is useful especially if  you want to travel to another country and want to buy a pre-paid SIM card so you  can have cell phone access without roaming charges. There are services that  offer to provide unlocking capabilities for a fee, but don't pay for them! You  can do it yourself for free, which is the perfect price. 

  Step by step to unlock : 

  1. Before trying anything else, contact your  service provider and ask for an unlock code. Usually, if you've been a customer  of theirs for some time, they will provide you with an unlock code for free.  This is, by far, the best way to get your phone unlocked. 
 2. Download software to generate the unlocking  code. Software is available on some websites for free. So google it.
 3. Find the Serial number of the cell phone, also  known as your IMEI number. This can be done by either removing the back of your  cell phone and looking underneath the battery, or simply by typing in *#06# into  your cell phone. It should be something like: 010082321439976/07951780736 
 4. Using the software you have downloaded, enter  in your Manufacturer (which is in this case Nokia), and sliding the card out.  Put the battery back in and power the phone on. 
 5. You will see a message "Insert SIM Card".  Enter all of the characters you see in your code, including the # symbols. To  get a 'p' press * 3 times, to get a '+' press the * key 2 times, to get a 'w'  press the * key 4 times. Disregard any spaces in the code. 
 6. n order to unlock your phone you generally  need to enter only one code. Start with the first one. If your phone is not  unlocked by typing the first code (MCC+MNC), use code "7" (Multilock) 
 7. Once you have finished  entering a code that works you should see a message that says "SIM is not  restricted" or "Restriction off" message depending on your model. If not, try  entering another code. Message "Cannot undo restrictions" means the phone is  "hard-locked" and cannot be unlocked by code.