Please my motorola i335 was a boost mobile cell phone. I will like to change it to another network.for example MTN. So that if I put an MTN sim card, it will connect. That is decode from Boost mobile.

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The message you are receiving 'Insert SIM' is due to the SIM card not being registered. (ie., it was registered at one time but is not now.) As such, it cannot receive network information. And, your phone sees this SIM as nothing more than a piece of paper stuck in the SIM card slot.

A single SIM card is not used to activate - and then reactivate - an account. To get service on the phone, a new SIM card will need to be purchased.

If you're in doubt as to whether your phone will recognize a SIM, take your phone to one of your cellular provider's stores and let them test it.

You can't. Iden phones are only compatible with the iden network. They aren't gsm based phones. Iden is a totally separate network all by it's self.

So it's physically impossible to use an iden phone on a gsm signal

Yes you can use it, but, you need a boost sim card.  Nextel phones work fine on Boost (same network) but you need a boost sim.  You can get them cheaply on ebay, often with the $5 dollar credit for under $10.00.  Otherwise go to a local phone store and get a boost starter kit.  They are made so you can start service with a boost or nextel phone.

>>Expert
>>Motorola Phones
>>Boost Mobile

I activate phones for Boost Mobile.

I'm sorry to tell you, but an ic902 can never be unlocked to work properly on any other system - to include the Boost system. Here's why. The ic902 is a hybrid phone. That is, it uses two different cellular systems to operate. Specifically, voice calls on the ic902 are placed over the Sprint CDMA network and Push-to-Talk (PTT) calls are transmitted over Nextel's iDEN network.

Boost Mobile calling (both, voice and PTT) uses the iDEN network from Nextel. Thus, the ic902's radio transmitter (which is CDMA) cannot make calls on the Boost ( iDEN ) system.

Moreover, if you plan to use Boost Mobile, I STRONGLY suggest that you NOT purchase a Nextel phone and have it unlocked to use for Boost.

Although Nextel and Boost phones seem the same - they are not. If you look at the model number of Nextel phones most of them end in a zero. (ie., i850, i870 etc.) where Boost Mobile Phones end with the number five. (ie., i855, i875, etc.) This is because the transmitters in the phones are set to different frequencies for different purposes (like for texting.)

If you go to eBay for example, those who sell unlocked Nextel phones to use for Boost (if they're honest) will inform potential buyers in their eBay listings that their unlocked Nextel phone will not (text, for example) on the Boost network. These unlocked Nextel phones will have limitations when used on Boost.

To prevent problems down the road, ALWAYS purchase a Boost phone to use on the Boost network.

If this information has been helpful, please give me a big thumbs up when you rate my answer.

if you want to use your phone on a service like t-mobile or cingular, it wont work, you can only unlock it for iden, like boost mobile, nextel.
you can unlock it your self by going here
http://multiplexelectronics.home.att.net/software.html

>>>>Expert
>>>>Motorola Phones
>>>>Boost Mobile

I activate phones for Boost Mobile.

I'm sorry to tell you, but an ic902 can never be unlocked to work properly on any other system - to include the Boost system. Here's why. The ic902 is a hybrid phone. That is, it uses two different cellular systems to operate. Specifically, voice calls on the ic902 are placed over the Sprint CDMA network and Push-to-Talk (PTT) calls are transmitted over Nextel's iDEN network.

Boost Mobile calling (both, voice and PTT) uses the iDEN network from Nextel. Thus, the ic902's radio transmitter (which is CDMA) cannot make calls on the Boost ( iDEN ) system.

Moreover, if you plan to use Boost Mobile, I STRONGLY suggest that you NOT purchase a Nextel phone and have it unlocked to use for Boost.

Although Nextel and Boost phones seem the same - they are not. If you look at the model number of Nextel phones most of them end in a zero. (ie., i850, i870 etc.) where Boost Mobile Phones end with the number five. (ie., i855, i875, etc.) This is because the transmitters in the phones are set to different frequencies for different purposes (like for texting.)

If you go to eBay for example, those who sell unlocked Nextel phones to use for Boost (if they're honest) will inform potential buyers in their eBay listings that their unlocked Nextel phone will not (text, for example) on the Boost network. These unlocked Nextel phones will have limitations when used on Boost.

To prevent problems down the road, ALWAYS purchase a Boost phone to use on the Boost network.

If this information has been helpful, please give me a big thumbs up when you rate my answer.

i dont get service at my home but my sister who also has a boost phone gets service. i have a i335 and she has a white phone she paid 29.99 for. i called boost and they told me that i have to try to see if it is the phone or sim card. how can i check to see if there is something set up wrong or if the transmitter needs to be changed?

if it says sim pin blocked you will need another sim card, go on ebay and get a 5.00 starter kit with IMEI for like 4.50

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.

hi what i found was that wen i put the other SIM card in (Vodacom, Mtn) and then went to menu, settings, network, network setup and then said available networks it would come up with three choices Cell C Vodacom MTN. Depending on the SIM card you put in choose the correct network (Vodacom SIM card would choose Vodacom) That fixed my problem hope it fixes yours bye!