I need a ''special code'' to enter for my Motorola I730 Nextel cell phone I will be using Boost Mobile

Use the following steps to unlock your mobile....

1 - Switch ON your Motorola I730 with a NOT ACCEPTED SIM Card,
2 - Phone will display "Enter Special Code",
3 - You can now enter the Unlock Code.

And get the unlock code here theunlockarena.com

You will need contact Nextel to get the subsidy unlock code to use your phone internationally. They can walk you through how to enter the code in properly.

When you place a new or a existing SIM card from another phone provider into your mobile phone and it asks for a Security Code then :-
This phone is locked to the original mobile phone provider. You need to contact this mobile provider to ask for the unlock code (Security Code) for this phone. You need to provide proof of ownership etc and the phone's unique IMEI number which is located inside the phone under the battery. They use this number to generate the unlock code for your phone.
They should provide you with instructions on how to enter this code into the phone.
Once you unlock the phone, then you can insert a new SIM card in this phone or sign up with another phone provider using this phone.
You could ring the phone provider and ask for the unlock Security Code because you are going overseas and wish to use your phone with a prepaid SIM card from another country. This maybe a free service.
The other way to get your phone unlock is to use a phone unlocking company on the Internet, they usually charge a couple of Dollars for their services. Use Google and search for "Security unlocking code” companies in your area.
You can also try this WEB site :-
http://www.mobileunlockguide.com/mobile-phone/
The IMEI number is unique the each mobile phone.
The number is printed on the label under the battery.
You can also get the IMEI number by entering this on your phone
*#06# It will then display your IMEI number and you may also get a unique global serial number. Your IMEI number should be 15 digits

If you are attempting to use a T-Mobile SIM card in a Nextel Motorola i730 mobile phone it will NOT work.

T-Mobile phones operate off of a GSM network. The Nextel i730 operates on an iDEN network.

The phone you have can never be compatible with the network you are trying to use it on.

Hello, please open this link: http://www.wonderhowto.com/how-to/video/how-to-operate-the-motorola-nextel-i730-mobile-phone-250239/view/

On that page click on SIM card Portability under Phone Feature...

If you are unable to remove the SIM card... then try to use a Tweezers.

I called Boost support about the same issue and I was told that that particular phone and any other Ic series phone by motorola will not work with Boost Mobile. There was also a few other phones that will not work. Try calling thier support line and requesting the list of phones that won't work. Good luck.

you will need to use software to unlock it, not the IMEI
try here
http://multiplexelectronics.home.att.net/idenprov5.html

you cannot use a GSM sim card in a nextel / boost mobile phone, if you need it unlocked for iden service you can go here.

http://multiplexelectronics.home.att.net/software.html

if its locked with a passcode, when it asks for the code, hit the menu button, then enter all zeros, if it still does not work contact the site above for help

If this phone was originally a Boost phone, it is more then likley on the IDEN network, which is exclusive to Nextel/Boost. Once the new SIM from the company other then Nextel/Boost is put in the phone, it will ask for a special code- thus rendering the phone useless on the new network. IDEN is only used by Nextel/Boost and another company out of the South called southernlinc.

There is no actual "Special Code". The phone is programmed for one, but it won't work. If you can get to a Sprint Nextel repair center, ask them to use RSS to unlock the codeplug. Also note that many Nextel SIM cards will do this to a Boost phone.