[Galaxy Note 3 Android Development] PeterGuru:
Root Call Blocker now working ...

Your information reminds me of what occasionally happened when up-dating Root Call Blocker (RCB) via Google Play. I often got the same behaviour, even before CM. However, about an hour ago I re-installed a clean version of RCB from Google Play, and then restored a previous backup within the app to restore all previous settings and blocked numbers. Lo and behold, it's all working well now.

Although I can't be sure, and it may only be with my device, I did notice something odd during subsequent tests. I added my in-laws' number to the block list and then made a call from their phone to my device. The block went perfectly. My phone did not ring, and the status bar immediately displayed a notification of the blocked call. On my in-laws' phone, there was never a ring ... just dead air. Perfect!

However, something a bid odd was still happening ...

When I opened the app to view the log of blocked calls, the one from my in-law's phone was listed (correct behaviour) even though I already removed the notification in the status bar. If I leave the in-app log intact, and then reboot the phone, the blocked-call icon reappears in my status bar once the reboot process is complete.

I think the restoration of the status bar icon may be part of the problem, although I can't be sure because I can't re-produce the problem from a few days ago. I only know that, when I initially flashed 20140304 four days ago, the blocked call icon reappeared in the status bar after rebooting (following the flash), and that's when I got the NO SERVICE issue.

I believe that this internal, in-app call-block notification somehow caused a conflict with the radio when flashing a CM up-date.

I have since disabled a feature within RCB, which may prevent the same thing from happening in the future. Then again, I can't be sure. The feature in question is "Persistent notification." When this is disabled, the blocked-call icon does not reappear in the status bar after a reboot, or after a CM flash/re-flash.

So far, after quite a number of tests, everything is working perfectly. Even though the "Persistent notification" feature is disabled, calls are still blocked, and the initial notification in the status bar still appears. It simply doesn't reappear after a reboot, flash, or re-flash.

For me, RCB is the perfect call-blocking app. It does exactly what I expect. It does not cause my phone to ring, not even briefly. It also does not automatically send the caller to voicemail, which is also what I don't want. Many/most other call-blocking apps either cause your phone to ring, even briefly or, if they do have the ability to completely stop your phone from ringing, they simply send the caller to voicemail. Both of these behaviours are not what I want. I simply want the following four things, and RCB does them perfectly:

1) I DO NOT want my phone to ring, not at all, not even for an instant.

2) I want my status bar to tell me that a call was blocked, including information about the blocked call.

3) I want the caller to never know their call is being blocked

4) I don't want to discover an unwanted message when checking voicemail.

I hope this helps.

Peter