[Galaxy A3, A5, A7, A8, A9 Android Development] jplitza:
Wow, fixing the in-call audio bug finally convinced me to upgrade. Thank you so much!

Almost everything seems to work. The interface stutters a bit at times, but that's okay.

More of a problem, I cannot activate NFC on my A500FU. From logcat, it seems as if on activation, it tries to update the NFC chipset's firmware, but after that, the service crashes:

08-18 16:05:50.256 7329 7845 I SecHAL : device_sleep: NFC can be going to sleep
08-18 16:05:51.171 7329 7351 E BrcmNfcNfa: nfc_ncif_cmd_timeout
08-18 16:05:51.171 7329 7351 I BrcmNfcNfa: nfa_dm_nfc_response_cback () NFC_GEN_ERROR_REVT(0x500d)
08-18 16:05:51.171 7329 7351 I BrcmNfcNfa: nfa_dm_nfc_response_cback () NFC_NFCC_TIMEOUT_REVT(0x500f)
08-18 16:05:51.171 7329 7351 I BrcmNfcNfa: flags:0x00000005
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: nfaDeviceManagementCallback: enter; event=0x6
08-18 16:05:51.171 7329 7351 E BrcmNfcJni: nfaDeviceManagementCallback: NFA_DM_NFCC_TIMEOUT_EVT; abort
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: nativeNfcTag_abortWaits
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: nfaDeviceManagementCallback: aborting sNfaEnableDisablePollingEvent
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: nfaDeviceManagementCallback: aborting sNfaEnableEvent
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: nfaDeviceManagementCallback: aborting sNfaDisableEvent
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: PowerSwitch::abort
08-18 16:05:51.171 7329 7351 I BrcmNfcNfa: NFA_Disable (graceful=0)
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: PowerSwitch::initialize: level=PS-UNKNOWN (0)
08-18 16:05:51.171 7329 7351 D NfcAdaptation: const CNfcParam *CNfcConfig::find(const char *) const found SCREEN_OFF_POWER_STATE=(0x3)
08-18 16:05:51.171 7329 7351 D BrcmNfcJni: PowerSwitch::initialize: desired screen-off state=3
08-18 16:05:51.171 7329 7351 E BrcmNfcJni: nfaDeviceManagementCallback: crash NFC service
08-18 16:05:51.172 7329 7351 F libc : Fatal signal 6 (SIGABRT), code -6 in tid 7351 (AsyncTask #1)
08-18 16:05:51.172 7329 7346 D BrcmNfcJni: PowerSwitch::setModeOn(activated=0x1) : mCurrActivity=0x1
08-18 16:05:51.172 7329 7346 D BrcmNfcJni: nfcManager_enableDiscovery: exit
08-18 16:05:51.173 236 236 W : debuggerd: handling request: pid=7329 uid=1027 gid=1027 tid=7351
08-18 16:05:51.206 7861 7861 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
08-18 16:05:51.206 7861 7861 F DEBUG : LineageOS Version: '14.1-20170817-UNOFFICIAL-a5ultexx'
08-18 16:05:51.206 7861 7861 F DEBUG : Build fingerprint: 'samsung/lineage_a5ultexx/a5ultexx:7.1.2/NJH47F/3e751b8df0:userdebug/test-keys'
08-18 16:05:51.206 7861 7861 F DEBUG : Revision: '0'
08-18 16:05:51.206 7861 7861 F DEBUG : ABI: 'arm'
08-18 16:05:51.207 7861 7861 F DEBUG : pid: 7329, tid: 7351, name: AsyncTask #1 >>> com.android.nfc <<<
08-18 16:05:51.207 7861 7861 F DEBUG : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
08-18 16:05:51.207 7861 7861 F DEBUG : r0 00000000 r1 00001cb7 r2 00000006 r3 00000008
08-18 16:05:51.207 7861 7861 F DEBUG : r4 981aa978 r5 00000006 r6 981aa920 r7 0000010c
08-18 16:05:51.207 7861 7861 F DEBUG : r8 a9b43697 r9 00270004 sl a9b43666 fp a9b51934
08-18 16:05:51.207 7861 7861 F DEBUG : ip 0000000b sp 981aa660 lr b14b3d07 pc b14b6564 cpsr 200f0010
08-18 16:05:51.223 7861 7861 F DEBUG :
08-18 16:05:51.223 7861 7861 F DEBUG : backtrace:
08-18 16:05:51.223 7861 7861 F DEBUG : #00 pc 0004a564 /system/lib/libc.so (tgkill+12)
08-18 16:05:51.223 7861 7861 F DEBUG : #01 pc 00047d03 /system/lib/libc.so (pthread_kill+34)
08-18 16:05:51.223 7861 7861 F DEBUG : #02 pc 0001d565 /system/lib/libc.so (raise+10)
08-18 16:05:51.223 7861 7861 F DEBUG : #03 pc 000190b1 /system/lib/libc.so (__libc_android_abort+34)
08-18 16:05:51.223 7861 7861 F DEBUG : #04 pc 00017118 /system/lib/libc.so (abort+4)
08-18 16:05:51.223 7861 7861 F DEBUG : #05 pc 0000f6bb /system/lib/libnfc_nci_jni.so
08-18 16:05:51.223 7861 7861 F DEBUG : #06 pc 0001a75c /system/lib/libnfc-nci.so
08-18 16:05:51.223 7861 7861 F DEBUG : #07 pc 000522e0 /system/lib/libnfc-nci.so (nfc_ncif_cmd_timeout+116)
08-18 16:05:51.223 7861 7861 F DEBUG : #08 pc 0005466c /system/lib/libnfc-nci.so (nfc_process_timer_evt+144)
08-18 16:05:51.223 7861 7861 F DEBUG : #09 pc 00054b80 /system/lib/libnfc-nci.so (nfc_task+340)
08-18 16:05:51.223 7861 7861 F DEBUG : #10 pc 0007641c /system/lib/libnfc-nci.so (gki_task_entry+40)
08-18 16:05:51.223 7861 7861 F DEBUG : #11 pc 000477d3 /system/lib/libc.so (_ZL15__pthread_startPv+22)
08-18 16:05:51.223 7861 7861 F DEBUG : #12 pc 00019afd /system/lib/libc.so (__start_thread+6)
08-18 16:05:52.137 7351 7351 W com.android.nfc: type=1701 audit(0.0:868): auid=4294967295 uid=1027 gid=1027 ses=4294967295 subj=u:r:nfc:s0 comm=4173796E635461736B202331 reason="memory violation" sig=6
08-18 16:05:52.152 1908 1927 I BootReceiver: Copying /data/tombstones/tombstone_07 to DropBox (SYSTEM_TOMBSTONE)
08-18 16:05:52.155 236 236 W : debuggerd: resuming target 7329
08-18 16:05:52.207 280 280 I ServiceManager: service 'nfc' died
08-18 16:05:52.209 1908 1920 I ActivityManager: Process com.android.nfc (pid 7329) has died
08-18 16:05:52.209 1908 1920 D ActivityManager: cleanUpApplicationRecord -- 7329
08-18 16:05:52.210 1908 1920 W ActivityManager: Re-adding persistent process ProcessRecord{2a6958 7329:com.android.nfc/1027}
08-18 16:05:52.221 1908 1920 I ActivityManager: Start proc 7866:com.android.nfc/1027 for restart com.android.nfc
08-18 16:05:52.231 1553 1553 I Zygote : Process 7329 exited due to signal (6)

Any ideas?