[Xperia Z3 Compact Q&A, Help & Troubleshooting] Gairtial:
Getting issues with modem from logcat:

<6>[ 224.145049] pil-q6v5-mss fc880000.qcom,mss: mba: loading from 0x0d100000 to 0x0d13a000
<4>[ 224.151677] ------------[ cut here ]------------
<4>[ 224.155406] WARNING: at kernel/irq/manage.c:428 enable_irq+0x60/0x74()
<4>[ 224.161837] Unbalanced enable for IRQ 413
<6>[ 224.165888] Modules linked in:
<6>[ 224.165915] [<c010bf04>] (unwind_backtrace+0x0/0x11c) from [<c0194c58>] (warn_slowpath_common+0x4c/0x64)
<6>[ 224.165932] [<c0194c58>] (warn_slowpath_common+0x4c/0x64) from [<c0194c9c>] (warn_slowpath_fmt+0x2c/0x3c)
<6>[ 224.165950] [<c0194c9c>] (warn_slowpath_fmt+0x2c/0x3c) from [<c01f3d7c>] (enable_irq+0x60/0x74)
<6>[ 224.165972] [<c01f3d7c>] (enable_irq+0x60/0x74) from [<c01312fc>] (pil_boot+0x7d8/0x9cc)
<6>[ 224.165990] [<c01312fc>] (pil_boot+0x7d8/0x9cc) from [<c013374c>] (mss_start+0x24/0x5c)
<6>[ 224.166009] [<c013374c>] (mss_start+0x24/0x5c) from [<c0162fc8>] (subsystem_get+0x94/0x168)
<6>[ 224.166030] [<c0162fc8>] (subsystem_get+0x94/0x168) from [<c0145094>] (msm_ipc_load_default_node+0x30/0x6c)
<6>[ 224.166047] [<c0145094>] (msm_ipc_load_default_node+0x30/0x6c) from [<c014a428>] (msm_ipc_router_ioctl+0xf0/0x2b8)
<6>[ 224.166065] [<c014a428>] (msm_ipc_router_ioctl+0xf0/0x2b8) from [<c0764cc8>] (sock_ioctl+0x228/0x278)
<6>[ 224.166086] [<c0764cc8>] (sock_ioctl+0x228/0x278) from [<c0263074>] (vfs_ioctl+0x28/0x3c)
<6>[ 224.166103] [<c0263074>] (vfs_ioctl+0x28/0x3c) from [<c0263ab8>] (do_vfs_ioctl+0x484/0x574)
<6>[ 224.166119] [<c0263ab8>] (do_vfs_ioctl+0x484/0x574) from [<c0263bf0>] (sys_ioctl+0x48/0x74)
<6>[ 224.166138] [<c0263bf0>] (sys_ioctl+0x48/0x74) from [<c0105ea0>] (ret_fast_syscall+0x0/0x30)
<4>[ 224.166149] ---[ end trace 1ffe67af4bf01ba1 ]---
<3>[ 224.205132] pil-q6v5-mss fc880000.qcom,mss: PBL returned unexpected status -284491765
<3>[ 224.212540] pil-q6v5-mss fc880000.qcom,mss: mba: Failed to bring out of reset
<3>[ 224.219243] modem_notifier_cb: sysmon_send_event error -19
<3>[ 224.224639] M-Notify: General: 5
<3>[ 224.227804] msm_ipc_load_default_node: Failed to load modem

I reported this over in the kernel thread http://xdaforums.com/showpost.php?p=57625416&postcount=23 it appears everything is still broken.

Also Wifi kills the whole system:

I/WifiHAL ( 652): Initialized Wifi HAL Successfully; vendor cmd = 103
D/wifi ( 652): Did set static halHandle = 0xafa4e040
D/wifi ( 652): halHandle = 0xafa4e040, mVM = 0xb505c280, mCls = 0x300ec6
E/wifi ( 652): getStaticLongField sWifiHalHandle 0xa06f381c
D/wifi ( 652): array field set
W/Adreno-EGL( 198): <qeglDrvAPI_eglDupNativeFenceFDANDROID:6527>: EGL_BAD_PARAMETER
W/SurfaceFlinger( 198): captureScreen: failed to dup sync khr object
E/audio_a2dp_hw( 241): adev_set_parameters: ERROR: set param called even when stream out is null
F/libc ( 652): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x4300001 in tid 1595 (WifiStateMachin)
I/WifiNative-HAL( 652): Waiting for HAL events mWifiHalHandle=-1348149184
D/wifi ( 652): waitForHalEvents called, vm = 0xb505c280, obj = 0x300ec6, env = 0xafd22320
E/wifi ( 652): getStaticLongField sWifiHalHandle 0x9aa39b1c
I/DEBUG ( 238): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 238): Build fingerprint: 'Sony/aosp_d5803/aries:5.0.2/LRX22G/root12250659:userdebug/test-keys'
I/DEBUG ( 238): Revision: '0'
I/DEBUG ( 238): ABI: 'arm'
I/DEBUG ( 238): pid: 652, tid: 1595, name: WifiStateMachin >>> system_server <<<
I/DEBUG ( 238): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x4300001
I/DEBUG ( 238): r0 04300001 r1 b3f279f8 r2 b3f1a885 r3 ffffffa8
I/DEBUG ( 238): r4 00000000 r5 04300001 r6 00000000 r7 b3f27dcc
I/DEBUG ( 238): r8 b3f1a885 r9 a1e4b400 sl 00000001 fp 130337c0
I/DEBUG ( 238): ip b3f27f20 sp a06f3820 lr b3f1dd4d pc b3f1dd4c cpsr 600d0030
I/DEBUG ( 238):
I/DEBUG ( 238): backtrace:
I/DEBUG ( 238): #00 pc 00007d4c /system/lib/libwifi-service.so (getWifiHandle(wifi_interface_info*)+5)
I/DEBUG ( 238): #01 pc 00007d53 /system/lib/libwifi-service.so (getHalInfo(wifi_interface_info*)+2)
I/DEBUG ( 238): #02 pc 0000b37d /system/lib/libwifi-service.so (wifi_get_link_stats+28)
I/DEBUG ( 238): #03 pc 0000421d /system/lib/libwifi-service.so
I/DEBUG ( 238): #04 pc 0003623d /data/dalvik-cache/arm/system@framework@wifi-service.jar@classes.dex
E/Sensors ( 4229): sns_smr_util.c(104):Unable to initialize service 256 with QCCI, timed out (10000 ms)
E/Sensors ( 4229): sns_sam_mr.c(1016):Unable to initialize service 0 with QCCI
E/Sensors ( 4229): sns_sam_mr.c(1111):Unable to acquire service handle 0
E/Sensors ( 4229): mag_cal.c(1603):mag_cal_sam_init: Unknown UUID(1) 00000000-0000-0000
E/Sensors ( 4229): mag_cal.c(1608):mag_cal_sam_init: Unknown UUID(2) 0000-000000000000
E/Sensors ( 4229): sns_sam.c(4432):Failed to register algorithm service 16 with SAM
I/DEBUG ( 238):
I/DEBUG ( 238): Tombstone written to: /data/tombstones/tombstone_01
I/ServiceManager( 196): service 'connectivity' died
I/ServiceManager( 196): service 'servicediscovery' died
W/Sensors ( 2552): sensorservice died [0xacc5e0c0]
I/ServiceManager( 196): service 'updatelock' died
I/ServiceManager( 196): service 'notification' died
I/ServiceManager( 196): service 'devicestoragemonitor' died
I/ServiceManager( 196): service 'location' died
I/ServiceManager( 196): service 'country_detector' died
I/ServiceManager( 196): service 'search' died
I/ServiceManager( 196): service 'dropbox' died