yashsingh1/xdaforums huggingface dataset:
[Windows 10 Mobile Apps. and Games] JuanMR2:
Thanks for the quick reply. I did install the acersystemservice package and load the ndtk files. I should have specified that in my original post that you quoted, that those steps I followed were from the first post "I have read through the whole thread and I have deployed vcREG to my phone and followed steps 1,2 and 3 successfully"

I will try to figure out how to access the files needed via sftp. Thanks again
[Windows 10 Mobile Apps. and Games] vdflat:
Lumia 950 Dual Sim here.

Followed the instructions and installed vcREG and Interop Unlock. Did all the tweaks in registry I wanted. So far so good.

The thing is that after the installation, my phone does NOT start with the USB cable plugged in (connected to a PC or a charger).

The screen is just black and the phone vibrates from time to time when turned off and on cable. When I take it off the cable, it starts normally.

Now I'm not even able to flash a stock rom because the process involves restarting the phone with a cable plugged in.

I tried factory resetting the phone - still the same behavior.

Has anyone experienced this?

Thank you in advance.
[Windows 10 Mobile Apps. and Games] ark0n3:
any news on this? really interested!
[Windows 10 Mobile Apps. and Games] ngame:
What is your phone ?

Let me know in Private Message
[Windows 10 Mobile Apps. and Games] hooddy:
I have the same issue. How to gettin through this?
[Windows 10 Mobile Apps. and Games] j00j4nt200:
I got 0x80188302 error, and spent hours looking for newer version of iotool that doesn't exist. Instead I shoud read explantion for error: package alredy installed :) Unlocked now :)
[Windows 10 Mobile Apps. and Games] xbatibotx:
i have unlocked my 950. can i extract appx files using interop tools? or is there a way to extract appx files on my phone?
[Windows 10 Mobile Apps. and Games] Talon Pro:
You didn't follow the directions, why did you install an XAP on a Win10 device?

---------- Post added at 02:53 AM ---------- Previous post was at 02:51 AM ----------

Ok, we have an issue... It seems the 2018-09 update to 15254.530 broke this, because no matter how many times I try on different PC's, I get the 110 error and nothing happens.
[Windows 10 Mobile Apps. and Games] xbatibotx:
what i did was i edit the registry using interop.. HKLM\System\Platform\DeviceTargetingInfo

PhoneManufacturer.... and put this string value "ACERINC" on it.
[Windows 10 Mobile Apps. and Games] hooddy:
I almost dont remember what i deed. It was on Acer phone isuppose. Right now I have HP and all fine. Thoose Acer phone is really suxx hardware and its a pity. I really liked this phone.
[Windows 10 Mobile Apps. and Games] augustinionut:
Ntdksvc isnt starting on my lumia 950 xl.

So i hardreset the phone.
[Windows 10 Mobile Apps. and Games] dreamer8ful:
How to run that command as administrator?
[Windows 10 Mobile Apps. and Games] augustinionut:
Is not a command. Is a service.
[Windows 10 Mobile Apps. and Games] taimoorhusain:
FileSystem Access

Re-surfacing this. Your method seems to have worked for a few people, so I thought id ask. Ive got a 950 that I desparately need to get file system access to, for the same reason everyone is requesting it I suppose. The meesages.db file for winwazzap. I can hard reset, I can do whatever needs to be done, but I cant seem to get any of the methods to work. In the above, when I check the Interop Cap Unlock, it unchecks itself after a few seconds.

I did go the vcreg route before, but that didn't get me past step two. So i hard reset and trying the interop tools route now. Any help is much appreciated.
[Windows 10 Mobile Apps. and Games] kgr:
When I click Step 3 (after successfully completing 1 & 2) I get a error: Copyfile error: 2147942432

Any ideas on how to fix this or is it normal?

Edit: I don't have root access - do I need it?
[Windows 10 Mobile Apps. and Games] noaman-atassi:
NDTKSvc

Did everything as instructed,

Got the gears and copied the .DLL files,

pressed on step 3, rebooted the device,

When I check Unlock it does nothing, registry still uneditable and Interop still shows me that my phone isn't unlocked.
[Windows 10 Mobile Apps. and Games] _AndyAndy_:
I broke MTP access of my Lumia 950 XL and need a rollback.

First I imported the original keys from here:

https://xdaforums.com/windows-10-mobile/mtp-mtp-lumia-950-xl-t3463479

Then I deleted the four registry keys from TriggerInfo\0 via Putty/ssh.

Unfortunately no effect. What else should be reverted back?

Could someone with L950XL on current build share his registry entries from

HKLM\Software\microsoft\mtp

HKLM\System\ControlSet001\services\Mtp
[Windows 10 Mobile Apps. and Games] indyshergill:
Hoping someone can help. I've tried to follow instructions for 950xl, but when I copy the 2 dll files and try to open vcreg, it says it cannot locate the dll files. Any advice on what I'm doing wrong? Trying to migrate my mum from win 10 to android and she needs her WhatsApp db. Any help would be appreciated. Indy
[Windows 10 Mobile Apps. and Games] Quslavo:
Hi,

I followed all the instructions in the first post to unlock my Lumia 950 and everything seemed to work fine, except in the end the phone wasn't unlocked. So I did a hard reset to try again, this time using vcreg + interop tools but when trying to install acer.service.acersystemservice.spkg I get get error 0x8024a110 which should be ok but the phone doesn't restart with the gears UI, even after retrying the command or restarting manually. I tried again after another hard reset but the result is the same. Any suggestions?
[Windows 10 Mobile Apps. and Games] pijalaccount:
it look like windows 10 mobile in the end of life. i will share you only one tweak i have you cant found it on internet that can make your overall experience better with w10m espesially with 1gb ram device !

so here we go.

you need registry editor to do this. i recommed interop tools by gustav.

goto HKLM\SOFTWARE\Software\Microsoft\Windows\CurrentVersion\Explorer\PLM

change DWORD value to 0 three of them :

EndLaunchGraceOnLaunch

HungAppPolicy

RpcPolicy

then restart your device.

now every app just easily running in backgroud if you want to multitasking, windows didnt force it to suspend anymore, so no more resuming...

the trick to test is, open messaging>hit windows key>open messaging again>close messaging from multitask. now if you open messaging again you will notice the different.

your welcome?
[Windows 10 Mobile Apps. and Games] billqu01:
well done

well done.

Thanks.
[Windows 10 Mobile Apps. and Games] dagoban:
You are my HERO!!!

I've tried it for a full week now to get it working from here: https://www.winwazzapmigrator.com/faq/windows-how-extract-messagesdb

Of course I always clicked on mount root c: and it didn't show up as MTP anymore.

Now I used your method and it worked instantly, thanks a lot!!!
[Windows 10 Mobile Apps. and Games] Dwn17:
I did vcREG interop unlock for my Lumia 650 a while ago to inscrease virtual memory limit + longer than 5 minutes screen lock . In may I had a problem to download apps from Windows Store or even Windows Update.

It turned out, that registry was somehow locked I can't change anything that requires registry access. I tried to do vcreg unlock procedure again, but there was error at step 3 - Copyfile error: 2147942432

Hard reset solved this issue. I did interop unlock again, set virtual memory to 512 Mb and never used vcreg or interop tool again.

Now I have the same problem and I've got no idea why this is happening. I can't download any updates and even remember my wifi password (phone "forgets" it after reset). In vcREG I have again this strange Copyfile error: 2147942432

What can I do to sole this issue without hard reset my phone again?

Thanks in advance
[Windows 10 Mobile Apps. and Games] Toothless:
Hi! vcREG_1_7.xap (second attachments) not found :(
[Windows 10 Mobile Apps. and Games] augustinionut:
Here:
[Windows 10 Mobile Apps. and Games] Toothless:
Hi! If I reboot my device (Lumia 950), Interop/Cap Unlock becomes disabled.

It is a problem? I still applied the interop unlock on my device?
[Windows 10 Mobile Apps. and Games] augustinionut:
You installed acer service?
[Windows 10 Mobile Apps. and Games] Toothless:
Of course, I installed it. How do I check if the installation was successful?
[Windows 10 Mobile Apps. and Games] augustinionut:
You will see it running in running process: go from edge to 127.0.0.1
[Windows 10 Mobile Apps. and Games] Toothless:
On section "Apps manager" I see this process (see the attachment). I think that acer driver isn't running
[Windows 10 Mobile Apps. and Games] augustinionut:
I said running processes.
[Windows 10 Mobile Apps. and Games] Toothless:
Sorry for my ignorance, it's the first time that I unlock a Windows device.

In the section "Running processes" I see AcerSystemService.exe

Then? I have to worry about that Interop/Cap Unlock becomes disabled if I reboot my device?
[Windows 10 Mobile Apps. and Games] Toothless:
You are a hero for me too! Thanks a lot! ;)

I'm curious, how can I enable the "Mass Storage" mode to edit system files?
[Windows 10 Mobile Apps. and Games] Toothless:
What is the difference between the paths C:\ and U:\ ?
[Windows 10 Mobile Apps. and Games] augustinionut:
If you apllied the steps to unlock x50 devices, then all is right.
[Windows 10 Mobile Apps. and Games] queser.info:
Can this help to network unlock?
[Windows 10 Mobile Apps. and Games] Dwn17:
Hello,

I asked for help on separate topic, but no one seems to have solution. Maybe here someone will help me or at least give my some advice what to check to narrow down the problem.

I encounter this issue third time now and I'm not willing to make another hard reset to fix it since it's not permanent solution.

I use only vcreg (earlier I used also Interop Unlock but I didn't use it this time to make sure that it is not the cause of my problems) to make registry editable (just two entries - increase virtual memory and change screen saver to "never") on my Lumia 650. For few weeks phone works just fine, but after a while it suddenly doesn't save any major changes after reboot (no matter normal reset or soft reset) - wifi password is not saved, volume setting reverts to standard values, can't enable developer mode for good and most annoying can't update any app. Right now I'm even unable to install Interop Tools, so I have only vcreg.

Is seems like registry level access (or some keys) is locked.

I'm not sure, but I think, that this "lock-down" happens after my battery drains out completely and phone is shutdown then. After that kind of unexpected shutdown my SD card is checked for errors etc. Maybe this is the clue why this happens to me?

My question is how to restore phone functionality without hard reset again? Don't get me wrong - I can do it when there is no other way, but I don't want to do it every few weeks since it's very time consuming - specially installing apss and restoring messages (MMS can't even be restored without really BIG mambo jumbo with backup file on PC) . I have to make sure what causes this to avoid it and do not lock my phone again.

Any help or even suggestion how to prevent such situations would be much appreciated. Even the info what exactly vcreg does in each "step" (for example step 2 - changes registry key.... and copy files from..... to ....)

Maybe it is caused by Extras+info? How can I get rid of it just in case?

Thanks in Advance for your help.

Best Regards
[Windows 10 Mobile Apps. and Games] Luxon:
Howdy,

A problem I've faced with when fiddling with ACER service. Might come handy to anyone out there.

Q: I've got my Lumia 950 XL in the Windows Logo status after doing this:

C:\Program Files\Windows Kits\10\Tools\bin\i386>iutool -v -p "D:\Setup\Windows Phone\RootTool\ndtk_acer_services\acer.service.acersystemservice.spkg"

(IUTool Version: 13:54:04/Apr 29 2015)

Log file: C:\Users\F28D~1\AppData\Local\Temp\IUTool-{299338D7-E9AD-4D02-BD74-B341894FDEEF}.etl

[1] Started device 9544fce3811a6a157045a67a8e4c2599
[1] Transferring files started
[1] Transferring files complete: 1 file
[1] Update started

Is it because I did NOT copy NdtkSvc.dll and newndtksvc.dll to the Documents folder on the phone before installing the ACER service? Step 1 in the app said 1) Install the service...

A: No. For unknown reason the phone started experiencing boot problems after one of official updates. Once the phone reboots after a system update, it gets stuck on Windows logo. Solution here is to press the Power button on the phone and hold it up until the phone restarts. If the phone gets stuck on the logo again, you have to repeat that: press and hold the Power button until the phone restarts.

(It is suposed here over at Reddit the phone only freezes after the restart when you update the phone having it plugged into the power socket or a USB port. If the phone does not charge and you install the update while it runs on a battery, the phone won't freeze on the Windows Logo).

Same procedure helps here: restart the phone every time it gets stuck on Windows logo. When the phone starts, itool will continue to run endlessly... Seems like abruptly ending the itool process with Ctrl+C in command prompt didn't do anything wrong. At least editing registry worked for me.
[Windows 10 Mobile Apps. and Games] augustinionut:
Unlock and go to mass storage mode using wpinternals. Copy NdtkSvc.dll and newndtksvc.dll inside system.32.

:D

Be carefull to not erase or format anything !!!
[Windows 10 Mobile Apps. and Games] PenaPP:
Does the vcREG + interop unlock work on Lumia 950 nowadays? I have installed Acer Service quite some time ago, but if I try to run vcreg now, it always tells me "Error: NDTKSvc Not Loaded" even though I can see most of the assets from the acer.service.acersystemservice.spkg package in \Windows\system32 of the phone (I can't access \Windows\Packages though to check the rest). I am also not able to redeploy the Acer Service, because iutool tells me that I already have the package installed. Additionally according to Running process on Device Portal the "AcerSystemService.exe" is running :(

Phone General Info:

Brand / model	Nokia Lumia RM-1118_13880
Operating mode	Normal (Windows Phone OS)
Product code	059X5B7
Operator	000-88
Firmware version	01078.00053.16236.35026
[Windows 10 Mobile Apps. and Games] Luxon:
Hi, I can't tell for 950, but I've just ran the procedure on 950XL, and it seems to work. At least after clicking Apply in VCREG having the Live Interop/Capability Unlock selected the app says Success. Dunno how to properly test the success, but altering and adding new sensitive registry settings in like HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management key worked fine. So I am guessing, it worked. I've used VCREG to unlock the phone, then installed Interop Tools (Store) from Windows Store on the phone, then installed these Interop Tools (Store) libraries by using Windows Device Portal in browser. Note, when you install the unpacked

InteropTools.Providers.Registry.RegistryRTProvider.App_1.0.12.0_x86_x64_arm.appxbundle.zip and InteropTools.Providers.Registry.NDTKProvider.App_1.0.6.0_arm.appxbundle.zip, make sure to install each of them as an application and not as a dependency.
[Windows 10 Mobile Apps. and Games] PenaPP:
I somehow managed to get the WhatsApp data out of the phone after all, so thank you very much for this thread :)
[Windows 10 Mobile Apps. and Games] peppe1945:
download is deactivated

Hi,

I cannot download attached files.

Thank you.
[Windows 10 Mobile Apps. and Games] augustinionut:
Witch files?
[Windows 10 Mobile Apps. and Games] dc_gem:
Hi! I need

vcregUWP_1.7+dependencies.zip

but download doesn't work. Can someone help me?
[Windows 10 Mobile Apps. and Games] mullan83:
Whatsapp migration

That's my current challenge before Whatsapp stops working at the end of the month. Any advice would be appreciated.

Cheers.
[Windows 10 Mobile Apps. and Games] mullan83:
Hi

What does "properly" install interop tools mean? From the store or downloaded and extracted with dependencies/certificate using 8zip?

I have tried both but not seeing the option for "This device" when opening the app so I assume I have done something wrong.

Ultimately I am trying to migrate Whatsapp from Lumia 950XL to a new Android device. Any help would be appreciated.

Thanks.
[Windows 10 Mobile Apps. and Games] mullan83:
Done it!

Finally did it. Easy once you know how but a lot of work getting there the first time round. A single place with all the instructions and various downloads would be useful but it's all there if you look hard enough.

50000 whatsapp messages migrated to Android.
[Windows 10 Mobile Apps. and Games] GreenPhil:
I have the same Problem with the december patch (10.0.15254.600)

Brand / model	Nokia Lumia RM-1085-15247
Operating mode	Normal (Windows Phone OS)
Firmware version	01078.00053.16236.35033
[Windows 10 Mobile Apps. and Games] Lasithastudent:
Thank you for your efforts

Worked like a charm, thank you very much
[Windows 10 Mobile Apps. and Games] VISHAV JEET:
not able to install acer.spkg
[Windows 10 Mobile Apps. and Games] augustinionut:
Ok.
[Windows 10 Mobile Apps. and Games] dc_gem:
Thank you so much
[Windows 10 Mobile Apps. and Games] The-Z:
Stuck on Windows logo on reboot after iutool update - solved

Thank you for posting this. This came in quite helpful in my case.

It appears the issue is indeed caused by the phone charging whilst installing the update, something which started happening in Summer 2019 I believe.

Naturally, pushing an update via iutool requires the phone be connected by USB, so the phone gets stuck on the Windows logo after the gears screen disappears.

Once disconnected from USB, holding down the power button and allowing the phone to boot, it finally gets to the Almost done... stage. I'm just waiting for the apps to be processed so I can continue with the unlock process.

Note: I had to remove the Reddit link in my reply as new users can't post external URLs, this was extremely helpful as one comment explicitly mentions the freeze when using iutool - see /r/windowsphone/comments/d28nt8/today_is_patch_tuesday_make_sure_to_monitor_your/f0ojuxh/
[Windows 10 Mobile Apps. and Games] The-Z:
Restore Ndtksvc.dll on Lumia x50 devices

If you are trying to unlock a Lumia x50 device and happen to be stuck with either of the two situations:

vcReg stating "NDTKSvc Not Loaded"

Interop Tools > Interop Unlock > Restore NDTKSvc is set to Enabled

Here is a workaround:

Make sure you have installed acer.service.acersystemservice.spkg using a compatible version of iutool (search for WDK 1703 10.0.15063 or search for /r/windowsphone/comments/7y2qr9/iutoolsexe_does_anyone_have_this_elusive_file/duddu5y/)

Copy NdtkSvc.dll and newndtksvc.dll into your phone's Documents folder on internal storage (not the SD card!)

Open Interop Tools, then open the ≡ menu > Registry > Registry Browser

Go to HKEY_LOCAL_MACHINE\SOFTWARE\OEM\Nokia\NokiaSvcHost\Plugins\NsgExtA\NdtkSvc

Tap the Path entry and change the Registry Value Data to C:\Data\Users\Public\Documents\newndtkdsvc.dll

Reboot your device

Open vcReg10 and run step 2, reboot, step 3, reboot, Interop Unlock and Apply

I hope this helps!
[Windows 10 Mobile Apps. and Games] augustinionut:
I unlock bootloader, put the device in mass storage mode and copy ndtksvc.dll inside system32.
[Windows 10 Mobile Apps. and Games] Kyon90:
Hi, I'm stuck in the Step 2 with these errors:

vcReg stating "NDTKSvc Not Loaded"

Interop Tools > Interop Unlock > Restore NDTKSvc is set to Enabled

I have a Lumia 950 XL, downloaded vcREG and iutool. With iutool I have installed acer.service.acersystemservice.spkg because the phone rebooted with the gears. I put the files in the Documents folder but vcREG stating "NDTKSvc Not Loaded". WHY?!

I tried your workaround but it doesn't save the change in the Registry. The phone, connecting it to the PC, shows me all the system folders.

It is vital because I would like to install "App Data Manage Tool" ( https://xdaforums.com/windows-10-mo...s-and-games/app-app-data-manage-tool-t3443623 ) to make an unencrypted backup of Whatsapp.
[Windows 10 Mobile Apps. and Games] titi66200:
newndtksvc.dll and ndtksvc.dll are on your phone not on SD?
[Windows 10 Mobile Apps. and Games] dudenhöfer:
@ The-Z

Hi,

is the Letter d right? C:\Data\Users\Public\Documents\newndtk----> d <------svc.dll

---------- Post added at 05:41 PM ---------- Previous post was at 04:56 PM ----------

Hi,

is there a spelling mistake in "newndtkdsvc.dll" ?

Shouldn´t it be "newndtksvc.dll" without the second "d"?

Glück Auf!
[Windows 10 Mobile Apps. and Games] fil3s:
I'm having Massive issues applying interop with this app. I've tried above steps but to no avail. Surely there's an easier way to interop/unlock Lumia 950. :D

I have :

1. The dll's in Documents in int. Storage

2. Vreg v1.7 w10 appxbundle intstalled:crying:

The app refuses[/url] to bypass the Error ; NDTKSvc Not Loaded . I really wanna get this Vreg app to interop unlock my 950:D

Edit: retarded post . Ignore it.
[Windows 10 Mobile Apps. and Games] augustinionut:
Have you installed acer service?
[Windows 10 Mobile Apps. and Games] fil3s:
I think so I used iutool to install it, rebooted to gears then when phone started I went to vreg app and still have the above error

Os build is 15254.603
[Windows 10 Mobile Apps. and Games] augustinionut:
Do you know how to use WPinternals?
[Windows 10 Mobile Apps. and Games] fil3s:
I have used it to successfully unlock several device but idk if it will work or if it will brick my 950 n i won't be able to recover it. The ffu i have i got from lumiafirmware.com cause when i press 'Download all' (in wpinternals) it just fc's
[Windows 10 Mobile Apps. and Games] augustinionut:
Tell me how you use vc reg 1.7 to interop unlock phone. I bet that you are missing one important step.
[Windows 10 Mobile Apps. and Games] fil3s:
I did use a different iutool than was linked in this thread that i got from a friend:

https://1drv.ms/u/s!AsYe_nSa6Z4ij-oK_140VTGtl2NW-Q

I had developer mode on, device discovery, device portal and authentication off.

I plug my Lumia 950 into PC , went to extracted iutool folder, open PowerShell as admin. I run this command:

iutool -v -p C:/acer.service.acersystemservice.spkg

It failed but upon reboot i got the gears:silly:
[Windows 10 Mobile Apps. and Games] augustinionut:
And you see acerservice running, in portal-proceses?
[Windows 10 Mobile Apps. and Games] fil3s:
I'm not sure I'm not very savvy with windows phone :(

Would it be safe to downgrade, from WP image designer , and use my ffu i downloaded from lumiafirmware to unlock bootloader and root my 950? I've bricked several devices with that tool :(
[Windows 10 Mobile Apps. and Games] augustinionut:
Is not recommendable to update with the bootloader unlocked. You may try to unlock bootloader and apply root. The important is to not format or delete anything when in mass storage mode, even if windows ask you to.

Or, if you want only interopunlock, you may copy ntdksvc.dll and newntdksvc.dll inside mainos/ windows/system32.

And then use interoptool to interopunlock. do not click on full system access, it wil broke pc connection with phone.
[Windows 10 Mobile Apps. and Games] fil3s:
Well. Tried to unlock with Wpinternals annnd.. it's stuck in flash mode, not even wdrt will restore it. Last time this happened it was permanently bricked. Oh well. That is last time I'll use wpinternals.
[Windows 10 Mobile Apps. and Games] augustinionut:
Bad luck.
[Windows 10 Mobile Apps. and Games] fil3s:
After restarting PC wdtr failed but it successfully restored it. Last modification I'll try. I'm done :victory:
[Windows 10 Mobile Apps. and Games] fil3s:
Delete
[Windows 10 Mobile Apps. and Games] fil3s:
If I install the iutool from this thread and run in cmd as admin - where do i open the cmd??? Which location.
[Windows 10 Mobile Apps. and Games] augustinionut:
Any :D

You must target the files. Any file.