[Q] "Mobile Network not Available" - Atrix 4G Q&A, Help & Troubleshooting

Hi all, it seems like I'm mucked something up on my phone because I'm just getting this message every time I try to make a call.
What I've done to try and fix it: double checked APN, set network operator, tried flashing back to stock through the automatic unlock tool (doesn't work..? it tries to open RSD lite and then the phone restarts back into CM 10.1), calling my carrier's support line (straighttalk, gave up after 2 hours on hold), so I'm coming to you guys.. anybody get this message before? What can I do?
Searching for it on the forums gives a whole host of different solutions from something to do with the kernel, a package that's carrier specific (not my carrier), checking apn, resetting the network operator, etc, I have no idea what to do. Any advice is welcome.
Thank you so much.

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Try flashing a diffferent radio. That would be my first suspect.

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ravilov said:
Try flashing a diffferent radio. That would be my first suspect.
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I'm currently baseband N_01.77.30P which is a little outdated I guess, I've found no less than 8 dead links for 36p but no active one, including from the answers thread. Anybody have a link handy?
Edit: http://atrix.tk/baseband/
Added this to the Atrix reboot thread too, so people can find stuff.
Thank you so much for the response.

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http://cleanimport.xda/index.php?threads/1583199/

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ravilov said:
http://cleanimport.xda/index.php?threads/1583199/
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Haha, thanks dude but that link is dead too. I posted where I found it here and in the atrix reboot thread.

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Flashed 36p, still no luck!
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soulseraph said:
Haha, thanks dude but that link is dead too. I posted where I found it here and in the atrix reboot thread.
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Oh sorry, that one has always been working, so I didn't really check it.
BTW it's not really dead, just suspended temporarily. I know it makes no difference to you at the moment since you needed the radio right now, I'm just saying.
Did you try going into the hidden service menu (*#*#4636#*#*) and see if there's any useful info there?
Other than that, I suppose your SIM card could also be a problem. Do you have (or can borrow) any other to try out?

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ravilov said:
Oh sorry, that one has always been working, so I didn't really check it.
BTW it's not really dead, just suspended temporarily. I know it makes no difference to you at the moment since you needed the radio right now, I'm just saying.
Did you try going into the hidden service menu (*#*#4636#*#*) and see if there's any useful info there?
Other than that, I suppose your SIM card could also be a problem. Do you have (or can borrow) any other to try out?
Click to expand...
Click to collapse
Just got a new sim card in the mail today, figured I'd try that before posting here. Same problem as the last one.
Out of curiosity I dialed 911 and it worked (oops.. hung up right away). I checked my imei to see if its blocked, it isn't.
(*#*#4636#*#*) says: No service and no phone number. LOL.
So I called up straight talk and it turns out they activated my phone incorrectly. 30 minutes on the phone later and I'm good to go.
Thanks again for all the help!