[Xperia SP Q&A, Help & Troubleshooting] infernalpostcard:
EDIT: I got mobile data working. WIFI still isn't working for me though.

I have been using CM 11 on my device for a while without any major issues. However, just recently I installed a SaberMod variant of CM 12.1 (from this thread) and can't get internet connectivity since. Due to the rules of this site I'm not allowed to post in the relevant thread though, that's why I'm posting here.

My questions: How can I diagnose the source of this issue? Where can I can get help? Do you have any ideas or quick fixes?

I have added a log snippet below.

W/thermanager( 4878): failed to attach resource "cpu1" [sysfs], ignoring
E/thermanager( 4878): failed to parse threshold mitigations
E/thermanager( 4878): failed to parse thresholds
E/thermanager( 4878): failed to parse configuration sections
D/WifiService( 2587): setWifiEnabled: true pid=3617, uid=1000
E/WifiService( 2587): Invoking mWifiStateMachine.setWifiEnabled
E/WifiStateMachine( 2587): setting operational mode to 1
E/WifiStateMachine( 2587): InitialState !CMD_START_SUPPLICANT 0 0
D/ALSADevice( 2195): route: devices 0x2 in mode 0
D/ALSADevice( 2195): No valid input device: 0
D/alsa_ucm( 2195): snd_use_case_set(): uc_mgr 0xb8270388 identifier _enadev value Speaker
D/ALSADevice( 2195): switchDevice: mCurTxUCMDevivce None mCurRxDevDevice Speaker
D/alsa_ucm( 2195): snd_use_case_set(): uc_mgr 0xb8270388 identifier _verb value HiFi Lowlatency
D/alsa_ucm( 2195): Set mixer controls for Speaker enable 1
D/alsa_ucm( 2195): acdb_id 263 cap 1 enable 1
D/alsa_ucm( 2195): Setting mixer control: SLIM_0_RX Channels, value: Two
D/alsa_ucm( 2195): Setting mixer control: RX3 MIX1 INP1, value: RX1
D/alsa_ucm( 2195): Setting mixer control: RX3 MIX1 INP2, value: RX2
D/alsa_ucm( 2195): Setting mixer control: LINEOUT1 Volume, value: 100
D/alsa_ucm( 2195): Setting mixer control: RX3 Digital Volume, value: 71
D/alsa_ucm( 2195): Set mixer controls for HiFi Lowlatency enable 1
D/alsa_ucm( 2195): Setting mixer control: SLIMBUS_0_RX Audio Mixer MultiMedia5, value: 1
D/ALSADevice( 2195): close: handle 0xb82b4e90 h 0x0
D/ALSADevice( 2195): open: handle 0xb82b4e90, format 0x2
D/ALSADevice( 2195): Device value returned is hw:0,14
D/ALSADevice( 2195): handle->format: 0x2
D/ALSADevice( 2195): setHardwareParams: reqBuffSize 1024 channels 2 sampleRate 48000
D/ALSADevice( 2195): setHardwareParams: buffer_size 2048, period_size 1024, period_cnt 2
E/WifiStateMachine( 2587): Failed to load driver
E/WifiStateMachine( 2587): InitialState !CMD_SET_OPERATIONAL_MODE 1 0
E/WifiStateMachine( 2587): DefaultState !CMD_SET_OPERATIONAL_MODE 1 0
E/WifiStateMachine( 2587): InitialState !CMD_START_DRIVER 0 0
E/WifiStateMachine( 2587): DefaultState !CMD_START_DRIVER 0 0
E/WifiStateMachine( 2587): InitialState !CMD_SET_HIGH_PERF_MODE 0 0
E/WifiStateMachine( 2587): DefaultState !CMD_SET_HIGH_PERF_MODE 0 0
E/WifiStateMachine( 2587): setSuspendOptimizations: 2 true
E/WifiStateMachine( 2587): mSuspendOptNeedsDisabled 4
W/thermanager( 4889): failed to attach resource "cpu1" [sysfs], ignoring
E/thermanager( 4889): failed to parse threshold mitigations
E/thermanager( 4889): failed to parse thresholds
E/thermanager( 4889): failed to parse configuration sections
D/ALSADevice( 2195): standby: handle 0xb82b4e90 h 0x0
D/alsa_ucm( 2195): snd_use_case_set(): uc_mgr 0xb8270388 identifier _verb value Inactive
D/alsa_ucm( 2195): Set mixer controls for HiFi Lowlatency enable 0
D/alsa_ucm( 2195): Setting mixer control: SLIMBUS_0_RX Audio Mixer MultiMedia5, value: 0
D/alsa_ucm( 2195): snd_use_case_set(): uc_mgr 0xb8270388 identifier _disdev value Speaker
D/alsa_ucm( 2195): Set mixer controls for Speaker enable 0
D/alsa_ucm( 2195): Setting mixer control: RX3 MIX1 INP1, value: ZERO
D/alsa_ucm( 2195): Setting mixer control: RX3 MIX1 INP2, value: ZERO
D/alsa_ucm( 2195): Setting mixer control: LINEOUT1 Volume, value: 0
D/AudioUsbALSA( 2195): exitPlaybackThread, mproxypfdPlayback: -1
D/AudioUsbALSA( 2195): closeDevice handle 0x0
D/AudioUsbALSA( 2195): closeDevice handle 0x0
W/thermanager( 4891): failed to attach resource "cpu1" [sysfs], ignoring
E/thermanager( 4891): failed to parse threshold mitigations
E/thermanager( 4891): failed to parse thresholds
E/thermanager( 4891): failed to parse configuration sections
I/MediaFocusControl( 2587): AudioFocus abandonAudioFocus() from [email]android.media.AudioManager@3c7ccf7ecom.cyanogenmod.eleven.MusicP[/email]laybackService$5@1d0ecdf
I/HeadsetService( 3411): Audio session removed: 18
I/MediaFocusControl( 2587): AudioFocus abandonAudioFocus() from [email]android.media.AudioManager@3c7ccf7ecom.cyanogenmod.eleven.MusicP[/email]laybackService$5@1d0ecdf
I/ActivityManager( 2587): Killing 3895:com.android.dialer/u0a8 (adj 15): empty #17
W/thermanager( 4902): failed to attach resource "cpu1" [sysfs], ignoring
E/thermanager( 4902): failed to parse threshold mitigations
E/thermanager( 4902): failed to parse thresholds
E/thermanager( 4902): failed to parse configuration sections
V/lights.huashan( 2587): LEDs : 255 255 0 - delayOn : 0, delayOff : 0 - Flash : 0 - Update : 0/0 - Brightness : 255 - LEDs Mode : 1 - Mode : 2 (Not. 1 / Bat. 2)
W/thermanager( 4905): failed to attach resource "cpu1" [sysfs], ignoring
E/thermanager( 4905): failed to parse threshold mitigations
E/thermanager( 4905): failed to parse thresholds
E/thermanager( 4905): failed to parse configuration sections