Can you use a Nextel SIM card in a Boost Mobile phone if its a i835 Boost Mobile?

Sometimes it works, sometimes it doesn't. When it does work, not all services will work, ie. mms, sms, dc/cg. When it doesn't work, you'll put your Boost sim back in your Boost phone and half of the time you'll be locked out of it. Trust me. When it happens, I'm the one you'll be calling for help when you dial 611 and I'll have to transfer you to Equipment Research to fix your phone. It's not fun.

Here's a tip. When you put your Boost sim back in a Boost phone, it might say "Please Wait to Enter Special Code". This happens sometimes when your Boost chip has been in a Nextel phone. Wait for it to say "Enter Special Code Now". This can take up to 45 minutes. When it says to enter code now, turn your phone off for at least an hour, then turn it back on. It should be back to normal. If not, call Boost Customer Care and ask for Equipment Research.....

full article:http://www.phonearena.com/forums/upload/showthread.php?t=5393

I have a boost mobile phone the Motorola i335 I have switched the sim card into multiple other nextel devices and it works minus the exceptions stated above there. I can still receive text messages though I cant respond to them with the nextel phone. I did not encounter any problems putting my sim back into the boost phone. I think it makes a difference if you have an unlimited boost account or if you are using the paygo option??? Im not sure about that but I use the unlimited plan