[Windows 10 Mobile] Talon Pro:
I did get a reboot notice that i didnt see before. However, i wonder if i may have misunderstood part of your post before and placed NVI files in another folder, maybe under Multivariant? IMS still unreg'd though. Even i i placed them elsewhere, why would it reg IMS once and then not again?

03:10:10.792 NVUPD: Nokia Security NV updater service started.
03:10:10.839 Label: Running on pure eno-sw image.
03:10:10.854 Label: This device was paneled with version 18.2040.213.379
03:10:10.854 Label: This device was labeled with version 18.2040.213.379
03:10:10.854 NVUPD: Version Security LabelSW (mfg) 18.2040.213.402.
03:10:10.854 NVUPD: Starting NV updater service.
03:10:10.932 Registry: Accessing registry value failed: Software\OEM\Nokia\NVIUpdater\ForcedUpdate: 2
03:10:11.554 NviSource: Added static NVI source: DPP: 4 Path: -
03:10:11.554 NviSource: Added static NVI source: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_update.nvi
03:10:11.554 NviSource: Added static NVI source: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_full.nvi
03:10:11.554 Registry: Checking for SCRTN trigger...
03:10:11.554 Registry: Accessing registry value failed: Software\OEM\Nokia\NVIUpdater\ExecuteSCRTN: 2
03:10:11.570 Registry: Current variant: '14789', latest updated variant: '14789'
03:10:11.570 Registry: Variant has not changed.
03:10:11.570 NviSource: Added dynamic NVI source: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\Nokia\Multivariant\14789\NVI\modem_configuration_update.nvi
03:10:11.570 Registry: Acquiring update ticket...
03:10:11.570 NviSource: Preparing to read DPP item 4.
03:10:11.570 NviSource: Determining file NVI version...
03:10:11.632 NviSource: DPP: 4 Path: - Ver: 124:19.14373.0.1 > 124:214.15203.0.6115 ?
03:10:11.632 NviSource: Preparing to read file C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_update.nvi.
03:10:11.632 NviSource: Determining file NVI version...
03:10:11.679 NviSource: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_update.nvi Ver: 124:215.15203.0.6115 > 124:214.15203.0.6115 ?
03:10:11.679 NviSource: Marked for update.
03:10:11.679 NviSource: Preparing to read file C:\Programs\CommonFiles\OEM\Public\Nokia\Multivariant\14789\NVI\modem_configuration_update.nvi.
03:10:11.679 NviSource: Determining file NVI version...
03:10:11.726 NviSource: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\Nokia\Multivariant\14789\NVI\modem_configuration_update.nvi Ver: 124:214.15203.0.6115 > 124:214.15203.0.6115 ?
03:10:11.726 NviSource: Update mask: 80000002 Latest version: 124:215.15203.0.6115
03:10:11.726 NviSource: Preparing to read file C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_update.nvi.
03:10:11.742 NviSource: Updating: DPP: -1 Path: C:\Programs\CommonFiles\OEM\Public\NVI\modem_configuration_update.nvi
03:10:11.742 Registry: Accessing registry value failed: Software\OEM\Nokia\NVIUpdater\ConfigAccessMode: 2
03:10:11.742 NviSource: Changing CAM to 1
03:10:12.882 NviSource: Unlocking SPC
03:10:12.898 NviSource: Starting to parse NVI...
03:10:12.898 JsonParser: Incoming JSON:
03:10:12.914 JsonParser: {"jsonrpc": "2.0", "method": "WriteNVData", "params": {"MessageVersion": 0, "ID": 400, "SubscriptionId": 0, "NVData": [1]}, "id": 0}

<snipped>

03:10:20.452 JsonParser: Processing method: 'WriteEFSData'
03:10:20.452 Label: Running on pure eno-sw image.
03:10:20.468 JsonParser: Outgoing JSON:
03:10:20.468 JsonParser: {
03:10:20.468 JsonParser: "id" : 0,
03:10:20.468 JsonParser: "jsonrpc" : "2.0",
03:10:20.468 JsonParser: "result" : null
03:10:20.468 JsonParser: }
03:10:20.468 NviSource: A total of 394 request(s) processed, 0 of them failed.
03:10:20.483 NviSource: No fatal failures -> update as good as it gets.
03:10:20.483 NviSource: Update done.
03:10:20.483 Registry: Writing NVI version to registry: 124:215.15203.0.6115
03:10:20.483 NviSource: Changing CAM to 0
03:10:21.532 NviSource: NeededUpdates after update process: 00000000
03:10:21.532 Registry: Accessing registry value failed: Software\OEM\Nokia\NVIUpdater\TestImage: 2
03:10:21.532 Registry: Accessing registry value failed: Software\Microsoft\Shell\RetailDemo\OobeWrite\Enabled: 2
03:10:21.547 Registry: Writing NVI version to registry NVI info: 124:215.15203.0.6115
03:10:21.547 Registry: Releasing update ticket...
03:10:41.605 RpcServices: About to launch reboot UI