Windows 10 Mobile Build 14356 review on Lumia 640 is here. Yesterday, our lovely Gabe Aul setteped down from Windows Insider Program Leader and new Microsoft’s employee Dona Sarkar took the leadership from Gabe Aul. With the entry of our new head, Dona released a new build 14356 for Windows 10 Mobile devices in the fast ring. Microsoft took a long time to release a new update for Windows 10 Mobile Insider Preview Devices.

Windows 10 Mobile Build 14356 Review 3

Windows 10 Mobile Build 14356 (from Windows Redstone branch) is currently available for download in the fast ring only for Windows Insider, not the public. Windows 10 Mobile Build 14356 brings numerous changes and slew of bug fixes. However, there are few known issues but the issues aren’t annoying at all.

The latest Windows 10 Mobile build 14356 for mobile brings several new features and improvements over previous Mobile Build 14342. The speed is also improved with mobile build 14356 and apps are also opening a bit faster.


Windows 10 Mobile Build 14322 review

Windows 10 Mobile build 14356 installed very smoothly on Lumia 640, there were no hiccups and major issues. The update downloaded and installed very faster compared to previous Insider Builds.

Preparing to installation process completed in 15 minutes. We recommend you to charge your phone to at least 50-60% to avoid any possible problems. After preparing to installaltion process completed, spinning gears started and it took 15 minutes to show Windows Logo.

The migration process was also faster, it took just 15-20 minutes. It is worth mentioning that the time installation process depends on the phone.

New features and improvements

Windows 10 Mobile Build 14356 released from Windows Redstone Development branch and it does comes with new features and improvements.

Mobile Build 14356 adds Cortana improvements. Finally with mobile build 14356, your PC will show notifcations from your Windows 10 Mobile or Android phone. When you will dismiss notfications from the phone, it will also get dismissed on your PC.

  • Get notifications from your phone to your PC: Cortana will now surface your phone notifications and critical alerts, including messages from messaging services, SMS or social media as well as missed calls from any Windows 10 phone or Android device to your PC, so you never miss a beat while staying focused on your PC.

Windows 10 Mobile Build 14356 brings an exlcusive feature, now with Cortana you can tranfer/send photos from Phone to your PC by giving Cortana a command “send this photo to my PC” and it will send the photo to your PC easlily.

  • Send a photo from your phone to PC: If you need to quickly transfer a photo from your phone to your PC wirelessly – just ask Cortana “send this photo to my PC” and see what happens. This feature is currently exclusive to Windows 10 phones.

Another improvement in Windows 10 Mobile Build 14356 is for our digital assiatant, Cortana. There is a new animation when asking Cortana using your voice.


  • New listening animation: When you tap the mic icon in Cortana, there is a new animation that shows Cortana is listening to you as you speak.

Hidden changes

Windows 10 Mobile Build 14356 includes some hidden changes, which is not officilaly announced in the blog post.

Windows 10 Mobile Build 14356

There are UI refinements in settings, now the background is darker and other tweaks. Also, settings open very faster and smoothly without any glitches.

Microsoft Edge also includes some tweaks. You can check the changes in the screenshot below:

Windows 10 Mobile Build 14356 Review 4


Windows 10 Mobile Build 14356 works very fast as of now there are no issues. I haven’t done hard reset yet and the phone is still running fast.

You will notice loading and resumuing screen when opening certain apps which aren’t compatible with Windows 10 Mobile. Also, when opening the messaging app, you will notice a long delay and the delay ends with a short loading screen.

Windows 10 Mobile Build 14352

As stated in the review of Windows 10 Mobile Build 14342 the major freezing bug in Windows 10 Mobile Build 14356 is still present, you can watch the bug in action by clicking here. For those who don’t know, when you turn off your phone and turn it on again. After the phone turned on, when you pull down the action center, and click on the mobile data toggle, it will make the phone freeze, and soft reset is the only available solution.

Sometimes you will get an error when taking the screenshot and you will also not able to open any emails from Outlook Mail, the only available solution is soft reset.

  • Windows Store [Very Slow, Buggy]
  • Microsoft Edge [Buggy]
  • Windows Camera [Fast]
  • People App [Slow]
  • Calendar [Good]
  • Outlook [Fast]
  • Maps [Smooth]
  • Settings Menu [Slow]
  • Messaging [Slow]
  • Twitter [Still Buggy]
  • OneDrive [Smooth]
  • WhatsApp [Slow]
  • Facebook [Little fast]
  • Skype [Smooth]
  • OneNote [Fast]
  • Word [Fast]

Windows 10 Mobile Build 14356 fixes several issues, including action center arranging bug and battery related problems. You can check the list of bug fixes below:

  • We fixed an issue that was resulting in high battery usage when using the Microsoft Health app.
  • We fixed an issue where the 75-85% battery icon was not very accurate, and made it look like you had more battery left than you actually did.
  • We updated the UI for rearranging Quick Actions in the Settings app to now show a visual confirmation of readiness on press and hold, and to show the other Quick Actions reflowing while you’re dragging the Quick Action to its new spot.
  • The Settings app will no longer crash when you are re-arranging Quick Actions resulting in the loss of Quick Action slots.
  • We fixed an issue that caused the Brightness Quick Action to appear missing.
  • We updated thumbnail generation logic to now only create the small thumbnail automatically after taking a picture, and create a larger thumbnail on demand. This saves SD card space for people who take a very large number of photos.
  • We have made improvements to the Glance screen. We fixed an issue that resulted in the Glance screen clock occasionally not being up to date. The Glance screen will now “Always show Glance screen when charging” as the default behavior. And we fixed an issue resulting in Glace screen possibly showing an unexpected and extremely large badge count.
  • We fixed an issue where the Alarms & Clock app might not update corresponding to a time zone change, resulting in an alarm going off at the wrong time.
  • We fixed an issue where the Camera app wouldn’t launch from the hardware key for certain devices if the Flashlight Quick Action was active.
  • We decreased the size of icons used in notifications from 64×64 to 48×48 – maintaining the visibility, while improving the use of space in the Action Center.
  • We fixed an issue where the solid black rectangle of the keyboard could sometimes be seen for a second after entering your pin on the Lock screen to unlock your device.
  • We fixed a few issues causing the keyboard not to come up with various UWP apps like the Messaging app, Microsoft Edge, and Cortana.
  • We fixed an issue where diversity emoji might show up as two characters (emoji and diversity modifier) in certain apps, including Messaging.
  • We updated backup logic to also include Start tile transparency percent, so that backups created from Build 14356 onwards will restore preferred transparency.
  • We fixed an issue that resulted in PCs failing to connect to the phone’s mobile hotspot with the error “Can’t set up network”.
  • We have updated app names on Live tiles to now reflect Ease of Access’ Text Scaling setting.
  • We fixed an issue resulting in the Brightness Quick Action not doing anything on certain devices after setting brightness to “automatic” in the Settings app.
  • We fixed an issue that resulted in Groove crashing when swiping to open the hamburger menu.
  • We fixed an issue that resulted in the Settings app sometimes freezing for a bit when moving a very large number of apps to a SD card.
  • We fixed an issue that resulted in Continuum having extremely fast scrolling inertia with certain TVs.
  • Fixed an issue where Glance screen might show stale badge counters for a few seconds immediately after Glance appeared
  • We have updated the Mobile Hotspot settings page to give clearer error messaging when setting up a hotspot fails due to no SIM being connected.
  • We fixed an issue that could result in Reminders not showing up at the correct time after upgrading.
  • We fixed an issue that would result in Cortana not showing any results if you started the mic and didn’t say anything, and then typed out the query.
  • We improved the reliability of Cortana listening after tapping the mic button.
  • We improved the refresh time of Wi-Fi data usage breakdown under Settings > Network and wireless > Data usage so it will more quickly update to reflect your usage when you open the page.
  • We fixed an issue where the navigation bar buttons for certain devices might be mapped incorrectly when the phone was locked leading to press and hold on back button invoking one-handed mode, and press and hold on Windows button invoking search.
  • We fixed an issue that resulted in not being able to turn off Bluetooth above the Lock screen without entering your pin.
  • We fixed an issue where certain apps, such as WhatsApp, were not displaying a detailed status on the Lock screen.
  • We fixed an issue where certain games developed for Windows Phone 8.1 might not scale correctly after the navigation bar had been hidden and would result in a black bar at the bottom of the screen on devices like the Lumia 535.

Known issues

Here are some known issues available with Windows 10 Mobile Build 14356:

  • We are continuing to investigate battery life issues impacting certain devices. We have fixed a few bugs that improve battery life but we have more work to do here.
  • We are investigating data issues with some Dual-SIM devices where cellular data doesn’t work correctly with a second SIM. Several issues relating to cellular data with Dual-SIM devices have been reported by Insiders with the last two Mobile builds and we’re investigating these reports.
  • In some cases, the new Cortana features highlighted above may not work. Restarting your phone should fix the issue and get the features working.
  • After installing this build, you may notice your Quick Actions icons are not in the same order. This is a side effect of the fixes/changes we made to Action Center. To re-arrange your icons to your preferred order, just go to Settings > System > Notifications & actions > (Quick actions) and touch, hold, and then drag to re-arrange icons to whatever position you want. Remember: the four items in the top row are what will show as your immediately viewable Quick Actions.


Windows 10 Mobile Build 14356 Review

Windows 10 Mobile Build 14356 is way better than any previous Windows Redstone Updates. There are UI glithces when opening and closing some apps. You will also face some loading and resumuing screen but it’s still better than previous Insider Builds.

I don’t recommend you to install Redstone Build on your daily driver as the phone will misbehave with you a lot. Let us know your expeince with new mobile build 14356 in the comments below.