Install W10 Mobile build 10240 on 930,640,640XL (links are back up) (Astoria)

BakedOnSomeSour

Senior Member
Sep 20, 2012
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This post is rather old. If your looking for windows 10 mobile on your device you can download the windows insider app here: https://www.microsoft.com/en-us/store/apps/windows-insider/9wzdncrfjbhk
Build 10240 was a leaked build with project Astoria. If you want the build you can download it but its pretty old.

When you first get to the home screen immediately turn on airplane mode. After that go into settings and check for an update. It should say no updates found. Now you can turn airplane mode off and download app updates. The reason you must do this is because the phone will try downloading a system update but never actually starts downloading. The pending update causes all the app updates to wait until the system update is done. But it wont ever be done.

DOWNLOADS:

Lumia 930 - https://mega.nz/#F!JwpyBSxA!HJSIJehG6RD8YMmOd8NOGw
Lumia 640- https://mega.nz/#F!JwpyBSxA!HJSIJehG6RD8YMmOd8NOGw
Lumia 640Xl- https://mega.nz/#F!JwpyBSxA!HJSIJehG6RD8YMmOd8NOGw

Windows Phone Image Designer for flashing ROM https://mega.nz/#!k5I0zZLB!cIt5bD_qYMVuhGcfcUA9694BacLd2k1t_skydyvmnvM


Before flashing make sure you have a backup ffu. Flashing this ffu will change your product type so to revert back to normal you need to have a retail ffu file for your phone. If youve used the recovery tool before you should have a retail ffu file in C:>ProgramData>Microsoft>Packages.

DISCLAIMER: I AM NOT RESPONSIBLE FOR ANY DAMAGE DONE TO YOUR PHONE.
WARNING: SOME PEOPLE HAVE BEEN GETTING A SECOND SIM ICON ON THEIR PHONES AFTER FLASHING THESE ROMS EVEN AFTER REVERTING BACK TO WINDOWS PHONE 8.1 USING THE WPRT OR A BACKUP FFU. THE ICON WILL NOT GO AWAY AND CURRENTLY THERE IS NOT A SOLUTION TO FIX IT. IT ONLY OCCURS ON SOME PHONES NOT ALL. YOU DO THIS AT YOUR OWN RISK



1. Download the ROM for your phone from the link above.
2.Download windows phone image designer from the link above.
3.Put your phone into UEFI mode by turning it off and then booting it while holding the VOLUME UP BUTTON. You should see a lightning bolt on your screen.
4.Plug your phone into your pc through Usb and open windows phone image designer. Select the x86 folder or the x64 folder depending on your version of windows.
5.Click on the Start.bat file and windows phone image designer will launch.
6.Once booted select "Flash a Windows Phone image onto your phone" and click next.
7. Your device should show up under flashable devices. Click on change and select the ROM you downloaded.
8. Hit "Flash" and wait for the program to finish flashing.
9. Once done your phone will reboot and you will have installed build 10240 on your device! 
 
Last edited:

oelapoel

Senior Member
Apr 29, 2006
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can you be more specific as in what way the "major improvements" are?

1. is store still slow and weird?
2. does slide down notification still weird, hit n miss kind a thing?
3. what about battery usage? improvement over 10166?
4. general stability, does it occasionally still restart? rarely but it happens i guess. and general responsiveness?

thanx for giving info :)
 

[email protected]

New member
Oct 17, 2014
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Could you upload more photo !!

As I know this version has android 4.4 inside . could you find any android message ? what different with old ver ?

I am 640xl and had downloaded it too , But I have not courage flash it . because people could not go back to normal if flash this version .
 

BakedOnSomeSour

Senior Member
Sep 20, 2012
174
35
0
can you be more specific as in what way the "major improvements" are?

1. is store still slow and weird?
2. does slide down notification still weird, hit n miss kind a thing?
3. what about battery usage? improvement over 10166?
4. general stability, does it occasionally still restart? rarely but it happens i guess. and general responsiveness?

thanx for giving info :)
1. The store is a lot more fluid and loads pages faster. Downloads now seem to be smooth and free from errors.
2.slide down notification seems fine. No having to swipe down twice.
3.Battery usage overall seems the same as my lumia 640 when it had wp8.1 on it.
4.The general stability is great! Touch is very responsive and there are barely any "loading" screens when an app is launched.
 
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BakedOnSomeSour

Senior Member
Sep 20, 2012
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As I know this version has android 4.4 inside . could you find any android message ? what different with old ver ?

I am 640xl and had downloaded it too , But I have not courage flash it . because people could not go back to normal if flash this version .
You can revert back to a normal build you just need the .ffu file for your phone. Everything really seems the same just a lot more smooth and faster.
 

BakedOnSomeSour

Senior Member
Sep 20, 2012
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Are you using the AT&T version or a dual sim variant. I have been trying to flash on my At&t 640 xl with no luck at all.
I used a Lumia 640 LTE from T-Mobile. Its not a dual sim version but the rom is for a dual sim 640. It still works because both use the same software. The download above is not for the 640XL. Get the download link for the 640 XL above

I used windows phone image designer to flash the rom. Put the phone in ffu mode and your all set.

If you have further questions please ask :)
 
Last edited:

mufflinftw

New member
Aug 9, 2015
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After i flashed my lumia 640 lte single sim I noticed the second sim icon. (makes sense cause I flashed the dual sim image)
But after flashing back to 8.1 with the original image the icon is still there.
any ideas why? :D
 
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BakedOnSomeSour

Senior Member
Sep 20, 2012
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That's odd. Even after flashingg the dual sim ROM I never see the icon. When you plug your phone into WPRT does it still detect your phone as a dual sim variant?

Sent from my Windows 10 using XDA Free mobile app
 

BakedOnSomeSour

Senior Member
Sep 20, 2012
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No the phone is detected as single sim lte in the wprt.
I also tried installing the firmware again with wprt but the second icon is still there.
Could you upload a screenshot of your phones start screen? I'm not quite sure what icon you are referring too. There doesn't seem to be an icon on my phone.

Sent from my Windows 10 using XDA Free mobile app
 

BakedOnSomeSour

Senior Member
Sep 20, 2012
174
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NP Baked, the other files will be up soon...I had to use my internet for work during the day today.
Sooo, any idea what this 'blocking bug' is that Gabe Aul mentioned? Have you noticed any bugs at all?
No bugs I've noticed at all. Unless they were talking about a bug that blocks further build updates. I guess I'll find out when I try and update this build when the next insider build is released.

Sent from my Windows 10 using XDA Free mobile app