[Nexus 6 Q&A, Help & Troubleshooting] Azlun:
I use the Google shamu LRX22C release‘s files from sub folders of /system, including nfc naming and bcm naming.

I list below here for you to reference, attachment also included same text for better view.

My result is no good news,

since even I replace all such files from LRX22C,

it still keep NFC Service Stopped blocking my way to desktop.

all relative files in ROMs are all zip into View attachment bcm_nfc.zipin this post.

It is really another good Idea, for you to use 3rd source ROM *bcm*.*;*nfc*.* files to try the replacing.

I may out of you for a while, expecting any tryer to go beyond me.

LXG22vsLRX22C ，Tools:Beyond Compare

Filter： *bcm*.*;*nfc*.*

LEFT Folder：D:\BaiduYunDownload\NEXUS6\TWRP ROM\xProDumpflashable.zip\system

RIGHT Folder：D:\BaiduYunDownload\NEXUS6\SHAMU_LRX22C_release-keys_subsidy-default_CFC.xml\system

Match Files Size Modified Time

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app\NfcNci\lib\arm\libnfc_nci_jni.so 72 2015/4/14 18:46:16

etc\permissions\android.hardware.nfc.hce.xml 840 2015/4/14 18:46:22

etc\permissions\android.hardware.nfc.xml 873 2015/4/14 18:46:22

etc\wifi\bcmdhd.cal 4,917 2015/4/14 18:46:22

lib\libnfc_ndef.so 5,132 2015/4/14 18:46:26

vendor\firmware\bcm4354A2.hcd 53,409 2015/4/14 18:46:38

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LEFT Folder：D:\BaiduYunDownload\NEXUS6\TWRP ROM\xProDumpflashable.zip\system

LEFT Newer Files Size Modified Time

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RIGHT Folder：D:\BaiduYunDownload\NEXUS6\SHAMU_LRX22C_release-keys_subsidy-default_CFC.xml\system

RIGHT Newer Files Size Modified Time

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app\NfcNci\arm\NfcNci.odex 823,784 2015/4/14 18:46:16

698,204 2015/5/9 15:48:51

app\NfcNci\NfcNci.apk 185,789 2015/4/14 18:46:16

290,193 2015/5/9 15:48:51

etc\libnfc-brcm.conf 3,666 2015/4/14 18:46:22

11,752 2015/5/9 15:48:59

etc\libnfc-brcm-20795a10.conf 1,612 2015/4/14 18:46:22

3,720 2015/5/9 15:48:59

framework\arm\com.android.nfc_extras.odex 29,160 2015/4/14 18:46:24

29,176 2015/5/9 15:49:03

framework\com.android.nfc_extras.jar 309 2015/4/14 18:46:24

309 2015/5/9 15:49:04

lib\hw\nfc_nci.bcm2079x.default.so 273,132 2015/4/14 18:46:24

96,472 2015/5/9 15:49:05

lib\libnfc_nci_jni.so 438,620 2015/4/14 18:46:26

348,196 2015/5/9 15:49:09

lib\libnfc-nci.so 981,220 2015/4/14 18:46:26

472,544 2015/5/9 15:49:09

vendor\firmware\fw_bcmdhd.bin 627,092 2015/4/14 18:46:40

621,715 2015/5/9 15:49:21

vendor\firmware\fw_bcmdhd_apsta.bin 546,698 2015/4/14 18:46:40

539,806 2015/5/9 15:49:21

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LEFT Folder：D:\BaiduYunDownload\NEXUS6\TWRP ROM\xProDumpflashable.zip\system

LEFT ONLY Files Size Modified Time

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etc\firmware\BCM20795A1_001.002.012.0003.0078_Generic_I2C_NCD_Signed_configdata.ncd 28,192 2015/4/14 18:46:20

etc\permissions\com.android.nfc_extras.xml 810 2015/4/14 18:46:22

etc\permissions\com.broadcom.nfc.xml 154 2015/4/14 18:46:22

etc\permissions\com.vzw.nfc.xml 156 2015/4/14 18:46:22

framework\arm\com.broadcom.nfc.odex 53,736 2015/4/14 18:46:24

framework\arm\com.vzw.nfc.odex 16,872 2015/4/14 18:46:24

framework\com.broadcom.nfc.jar 309 2015/4/14 18:46:24

framework\com.vzw.nfc.jar 309 2015/4/14 18:46:24

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RIGHT Folder：D:\BaiduYunDownload\NEXUS6\SHAMU_LRX22C_release-keys_subsidy-default_CFC.xml\system

RIGHT ONLY Files Size Modified Time

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etc\nfcee_access.xml 10,525 2015/5/9 15:48:59

media\audio\ui\NFCFailure.ogg 31,870 2015/5/9 15:49:12

media\audio\ui\NFCInitiated.ogg 25,194 2015/5/9 15:49:12

media\audio\ui\NFCSuccess.ogg 27,201 2015/5/9 15:49:12

media\audio\ui\NFCTransferComplete.ogg 33,297 2015/5/9 15:49:12

media\audio\ui\NFCTransferInitiated.ogg 28,204 2015/5/9 15:49:12

vendor\firmware\bcm20795_firmware.ncd 27,540 2015/5/9 15:49:21