Can i shut off the back light and or dim the

Your nextel/sprint k502 maybe 'Network Locked' and thusl not allow another network Sim to be used: if you are no nonger under contract, you maybe able to get a free NCK or NUK Network unlock code.

Your phone is locked to a mobile phone provider. You need to contact this mobile provider to ask for the unlock code (security code) for your 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 the phone.

The phone is attached to another account and the previous owner will have to contact Sprint to have the device removed from the line.

GOSTARIA DE SABER COMO TIRAR CODICO ESPECIAL DE NEXTEL

dial * 720 then hit the talk button. you will hear beeps confirming call forwarding is off. to call forward you dial *72 talk.

i had a similar problem that was a software problem with the phone. it was exchanged for a new phone.

You cannot use a Boost sim card in the phone, it HAS to be a powersource sim card. You may be able to purchase one of these at a Sprint Nextel Repair location, or via Customer Care Sales. Let me know how it goes, I do apologize for the incovience.
Justin
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would like to if any one nio how to unlock nextel ic502

can it be unlocked to work with boost?

I do apologize, but you cannot UNLOCK a motorola phone, Call MOTOROLA care, to see if there is anything other that you can do, but with the Nextel SIM card, it is basically made, NOT to be unlocked.
Thanks.
Justin
Please Rate me