I'm having the same problem with only one difference, and first of all, sorry for posting here but I got no answers in my forum and I'm desperate to solve this as I need my phone for everyday task. My problem is when I hit save the APN settings just don't save but if i left the mnc on 11 it does save... I'm out of ideas with this situation wondering if someone has a fix for this. Btw. im on CM 10.1 right now and I can confirm it has happened to me on Liquid smooth
Well I will see if this helps that happened to me once and was a kernel issue. If you are flashing a ROM tryiun flashing a kernel with a release date before the release date of the ROM. Because kernel with a release date after the ROM probably that's one of the issue.
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