How to update Windows Phone 8.1 to Windows Mobile 10

Windows Phone 8.1 store was closed on December 16 2019 which means that you no longer can download apps for this operating system or update it to Windows Mobile 10 using the upgrade advisor app.

The upgrade advisor app was the official way install Windows Mobile 10 in supported phones but when you try to connect to the store using a Windows Phone device to download it, you will see the following message:

There has been a problem completing your request. Try again later. This error code may be helpful: 805a0190

This was a common error on Windows Phone devices and there are a lot of tutorials in the internet explaining how to fix it however none of them will work since the operating system was discontinued.

The only way to get your phone updated is by downloading the Over-the-cable Updater tool for Windows Phone 8.1 and Windows Mobile 10, you can get it form here or form here.

How to install Windows Mobile 10

Once you download the over-the-cable tool do the following:

Important! A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

  1. Before starting this process make sure your phone has more than 40% of battery
  2. Connect your phone to your computer using a USB cable
  3. On your Desktop create a folder with the name Win10Update
  4. Execute the OtcUpdaterZip.exe
  5. Accept the terms by clicking Yes
  6. Extract the files to the folder you have created in your desktop as shown in the following image
  7. Open the Win10Update folder on your desktop
  8. Open the otcupdater.exe
  9. The tool will detect the phone and will extract the update. This process may take several minutes, wait until you get the message to disconnect your phone
    update Windows Phone 8.1 to Windows Mobile 10
  10. To monitor the installation of the Windows Mobile 10 go to Settings and then Phone Update
  11. The phone will restart and will do the installation, this process will take a few minutes do not turn off your phone
  12. The phone will restart one more time and will proceed with the installation and migrate your data

Even though this mobile operating system is deprecated most of the available devices are still good feature phones and most of them can still be used with Continium (if manually installed) that provides a desktop experience from your mobile.

The entire update process takes about 30 minutes and will leave your phone on the latest version of the iconic Windows Mobile.

Infographic vector created by fullvector – www.freepik.com


15 Responses to “How to update Windows Phone 8.1 to Windows Mobile 10”

  1. Anonymous

    January 5, 2021

    An error occurred while making the HTTP request to https://fe2.update.microsoft.com/v6/ClientWebService/client.asmx. T
    This message keeps on showing

    Reply
    • João Ferreira

      January 21, 2021

      Can you please let me know in which step has this message appeared?

      Reply
      • after ‘checking for updates’.

        Reply
        • João Ferreira

          February 15, 2021

          A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

          Reply
      • FREDADO

        February 7, 2021

        it keeps on appearing as soon as it starts checking for updates on otcupdator and am tired of doing things which arent happening……………

        Reply
        • João Ferreira

          February 15, 2021

          A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

          Reply
      • AnotherAnonymous

        February 14, 2021

        Having the same issue.
        Device is recognized.
        “Getting logs from device”
        “Checking for updates”
        -> Error about connecting to https://fe2.update.microsoft. com/v6/ClientWebService/client.asmx

        Reply
        • João Ferreira

          February 15, 2021

          A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

          Reply
    • AndryR

      January 27, 2021

      Same error for me – and when entering fe2.update link, it shows 404 error.
      I think the link is no longer available so there’s no other way to upgrade

      Reply
      • João Ferreira

        February 15, 2021

        A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

        Reply
    • cszolee

      February 10, 2021

      Same here. Apparently Windows Phone is completely dead. It’s a brick.
      Fun fact: on 8.1 I cant even access the Store, or add my MS Account to the phone.

      OtcUpdater 8.2.1.0

      Waiting for next device. Please connect a device via USB. Press q to quit.

      4f26a3ba86afbd09098761b42f6b4918: Lumia 640 Dual SIM(RM-1077_1018) 8.10.15148.160
      Hiba a(z) https://fe2.update.microsoft.com/v6/ClientWebService/client.asmx felé irányuló HTTP-kérelem közben. Ez azért
      (this is Hungarian btw).

      This used to work, but not available anymore (and Store does not work anyway). So we’re f.cked it seems.
      https://www.microsoft.com/hu-hu/p/upgrade-advisor/9nblggh0f5g4?activetab=pivot:overviewtab

      Reply
      • João Ferreira

        February 15, 2021

        A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

        Reply
  2. helpful

    January 21, 2021

    This is really helpful

    Reply
  3. Anonymous

    February 3, 2021

    An error occurred while making the HTTP request to https://fe2.update.microsoft.com/v6/ClientWebService/client.asmx. T
    This message keeps on showing. It shows after checking for updates

    Reply
    • João Ferreira

      February 15, 2021

      A few things have changed since this post was originally posted which is preventing the phones from updating using the OTC update tool. This problem is described in a Microsoft forum with a possible solution to fix it, have a look here.

      Reply

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