Windows 10 Mobile Preview Build 10536.1004 Available Now

After quite a long wait, Microsoft is rolling out the latest Windows 10 mobile Preview build 10536.1004 to Windows Insiders this evening. Here’s a look.

After quite a long wait, Microsoft is rolling out the latest Windows 10 mobile Preview build 10536.1004 to Windows Insiders today. Gabe Aul made the announcement on Twitter late this afternoon.

The last update we saw was Preview build 10512, and it was a major improvement over the previous release, but of course it had its issues as all Preview builds do. Microsoft’s Gabe Aul reached out to Windows Insiders on Twitter last week to find out if the build should be released to the Fast ring, despite having a major bug with Store purchasing, the overall response from Insiders was a resounding yes! But unfortunately that build was nixed last Friday because of another issue discovered. Gabe said on Twitter ” I have some bad news folks. We discovered an issue late last night that would have caused builds *after* 10536 to not install over it.”

On Monday Microsoft announced that the new mobile build would be available on tomorrow, but as noted, it was actually rolled out late in the afternoon is available now.

Windows 10 Mobile Build 10536

The update is available now to Windows Insiders. Just go to Settings > Update & Security > Phone update > Check for updates. And you will need to go through two rounds of updates. First is to update to build 10536.100 and then to build 10536.1004

Windows 10 Phone Updates

The new build features fixes for bugs in the previous release that broke the Quiet Hours and mobile hotspot features. It also fixes an issue with a non-functioning Lock Screen that some users were having.

According to Microsoft’s Blogging Windows site, you should also see the following improvements:

  • Insider Hub is now included again!
  • Mobile hotspot functionality has been fixed.
  • Voice input has been updated to add support for Japanese and English (India) speech recognition.
  • Single hop updates are again available from Windows Phone 8.1 to Windows 10 Mobile Insider Preview for all devices.
  • Two-factor authentication is fixed when setting up a device for both text and phone authentication.
  • Start screen will successfully load instead of failing with “Loading …” displayed in a loop until device was rebooted. (We are still tracking down an issue were it may show “Loading …” for a few seconds.)
  • Quite HoursDo Not Disturb has been fixed.
  • Delay in showing date and time on Lock screen has been improved.
  • Pinch and zoom in Maps now works as expected.

It also includes an updated Photos app, a new one-handed mode that allows reaching items easier, and the Windows Feedback app returns.

photos app windows 10 mobile

Of course, there is also known issues in this build, which according to Microsoft include the following:

  • After rebooting your phone, you won’t see notifications, such as new messages, until you unlock your phone. After that, you should see notifications for new messages just fine.
  • “zStorage” appears in the Settings app under System and clicking on it causes the Settings app to crash.
  • Camera upload to OneDrive may not be enabled based on prior settings. To fix this, make sure you are running the latest version of OneDrive by opening the top left navigation bar, then settings on the right to verify that camera upload is turned on and you have the latest app (version 17.2).
  • Insiders will not be able to move from Slow to Fast rings temporarily; we are working on a fix but in the interim to move a device from Slow to Fast you will need to use the Windows Phone Recovery Tool to first start on Windows Phone 8.1 and opt directly into the Fast ring.
  • Additional languages for speech and keyboards won’t be available until tomorrow (9/15) and will error if you try to download. If you already have languages for speech and keyboards downloaded to your phone prior to upgrading, they will remain and available to use

Remember to make sure your phone is fully charged, you’re on Wi-Fi, and leave your phone plugged in while the update takes place. During the upgrade process, your phone will restart several times.

I am just now starting to download the updates to my Lumia 635, and after I eventually do get the bits downloaded, we’ll see how things go. Despite the delays in new builds, Microsoft seems to be close to the final release as the past few updates are only improving performance and patching security bugs.

If you’re a Windows 10 Mobile Insider, let us know how the update is going for you, any issues you encounter downloading the update and any solutions you have in the comment below.



  1. Joe L

    September 15, 2015 at 7:00 am

    Both updates loaded without any problems. Some of the things they didn’t fix at least on my HTC one m9 are the store not downloading two apps. RunMaster Pro, and Amazon. Not able to tap screen to wake the phone, and phone does not answer when I put it to my ear.
    I’ll write back after I’ve used it a bit.

  2. Mark

    September 15, 2015 at 11:47 am

    Massive problem with mine, woke me up at 3am to a black and white screen saying: Windows failed to start. It is stuck in a restart loop. Looks terminal. Its asking for a disc :s

  3. Brian Burgess

    September 15, 2015 at 12:34 pm

    Yeah, my update seriously took from the time I wrote this article last night, until just an hour ago…after several reboots, i just left it go all night…weird.

  4. Joe L

    September 15, 2015 at 7:47 pm

    Hi Mark.
    Sorry to hear your having that problem. The only thing I can think to do would be a reset, seeing that you have a blue screen.
    Did you fix it?

  5. Irfan

    September 16, 2015 at 10:22 am

    I am downloading the updates but from the last 48 hour its showing status 0%.i am already using window insider 10512.
    Guide me how to down load up dates at my Lumia 640xl.

  6. paulo

    September 16, 2015 at 12:12 pm

    My lumia 930 is not downloading the update even plugged on power and with wifi connectivity…

  7. Meyer

    September 16, 2015 at 2:45 pm

    Installed on Nokia 1520 without a problem. However, the store is not launching.

  8. John Winser

    September 17, 2015 at 6:42 am

    I am having same download issues,my lumia620 stops at various percentages an then says its installing updates and nothing changes from there.After sitting all night now phone wont even go past phone update heading. It wont even show that updates are needed. Also UpdateAdviser was a waste to d/l, when I used it ,it always said phone was up to date,even though phone was showing elsewhere that two updates were available???

  9. Joe L

    September 20, 2015 at 12:10 pm

    As I said above, I’m getting back with what my thoughts are with the new build. I’ve had a problem with several apps not loading and I tried everything to fix it. Finally I received a tip from a relative telling me,to do a reset. Settinds/system/about/reset. That was the best advise iVe had in a long time. It cleared up the problems with the store, and some issues with installed apps not running or being sluggish.
    I’m not suggesting you do this, but if you do make sure you back up everything first.
    I just wanted to relate my problems and how I was able to solve them, with some help of course.

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