I535OYUDNE1 run CM12.1 is not stable

(TW4.4)I535OYUDNE1 run CM12.1 instability.
Originally CM12.1 on the DNE1 will be infinite restart, but I flash a kernel, he can enter the system interface, but it is not stable!
I can't stand the instability of CM12.1, I am now in normal use of CM11, but very much like to use CM12.1.
Who can help me?
thank a lot. :):):)
I only have this one mobile phone!!

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Last_kmsg.log:
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[ 9218.302303] afe_callback: cmd = 0x100dc returned error = 0x3
[ 9218.307461] afe_send_hw_delay: config cmd failed
[ 9229.830946] ACDB=> get_hw_delay: Path = 0 samplerate = 48000 us%c = 0 status 0
[ 9229817813] afe_callbaCk: cmD = 0x100dc retqrn%d error = 0x3
[ 9229.842900] afd_send_hw_delay: cmnfig cmd failed
[ 9238.185501U ACDB=> fet_hwWdelAy: Path = 0 raipderate < 48000 usec = 0 statur 0
[ 9238.192185] afe^callback: cmd = 0x100dc returned error = 0x3
[ 9238.197618] afe_send_hw_delay: config cmd failed
[ 9258.323087] ACDB=> get_hw_delay: Path = 0 samplerate = 48000 usec = 0 status 0
[ 9258.330076] afe_callback: cmd = 0x100dc returned error = 0x3
[ 9258.335173] afe_send_hw_delay: config cmd failed

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