Yea that would do it too. For some reason with CM10, whenever you reboot your device or on first boot you need to changed the radios to LTE/CDMA/EvDo. I had to do the same thing as well. Have no idea why that makes a difference but that has been a bug since early builds.
Do you have any idea why I get random call quality issues where the speaker is so loud it distorts to the point where its hard to hear?....I know they had issues with the speaker being loud but I thought with M1 they took care of it.
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