Choose one of the methods below, FFU or Device update
FFU UPDATE
DEVICE UPDATE
- - Don't connect WiFi before you finish
- - Battery charged 50% or more
PART 1
- Flash Retail FFU Skip if you're on 10586
- Set Phone date to 5th May 2016
- Unlock bootloader ( PDF | YouTube)
PART 2
Push cabs below on stages not at once. 
For easy setup use the latest
                                        Universal Updater 2.7.6+
                                    
- (Stage 1) Push FlightSigncab
- Wait until system update..
- (Stage 2) Filter & Push 14320cabs
- Wait until system update..
- Done
(Do not push all/multiple cabs without filtering them
                                            for your device,
 if you are not sure how to; check Universal updater
                                            below)
1.Connect & Select Packages
- Connect your device, ensure connection is well
- Open the app, choose (1. Device)
- Then choose Offline update packages
- Universal Updater will ask to select packages folder
- Choose the Offline packages folder
2.Review Features
Required features enabled by default
- Universal Updater will display features list
- Ensure required features are enabled
- Press '0' to Confirm (If question appeared)
3.Filter & Push
By default (14320 Stages) will force filter mode
- Choose 1. Filter packages(If question appeared)
- Read packages details, ensure date set to (5th May 2016)
- Ensure WiFi is not connected
- If everything ready, choose 1. Push packages
4.Monitor Progress
Once iutool finished pushing packages, navigate to:
- Settings
- Update & Security
- Phone Update
And monitor the progress. 
If you received any error, check errors list
                                        below.
Usually (Stage 01) is short. 
But (Stage 02) will take time, 
so please
                                        wait and don't interrupt the process.
The update will add tools & test app (CPU-Z) at your files (Apps) folder.
- Apps\CMDInjector
- Apps\WUT Mini
- Apps\Arcadia\CPU-Z
To test Astoria, try to install CPU-Z
You can just click on it and install to test if the update working.
Keep in mind first installation will take time until Astoria initialize
Once update completed you can set the date back and enable WiFi.
This feature still experimental use it at your own responsibility
1st MassStorage
Switch to MassStorage using Developer Menu
- - Reboot your phone
- - Then hold Volume Down to show Developer Menu
- - Select MassStorage, press confirm button
2nd Enable RootAccess
- - [ Download] WPinternals-2.9.2 (ProjectA).zip
- - Start WPinternals (ProjectA)
- - Go to Enable root access
- - Click Unlock phone
- - Done, root access enabled
| Issue | Description | 
|---|---|
| Render issue | This issue may occur on Lumia 950s with Astoria 10570+
                                                    but for specific apps specificly with apps that use fullscreen mode may require to invoke bottom bar to keep it rendering Or use the app in landscape mode if possible | 
| WiFi Access | On Astoria 10570+ some apps may not able to detect WiFi state, and will report "WiFi not connected" | 
- If there was no progress at Phone Update after pushing cabs, re-open
                                            Phone Updatemenu after few seconds and check again. If nothing started, then try to push again.
| Error Code | Description | 
|---|---|
| 0x800b010a | Signature Verification Issue Solution: Enable flight signing | 
| 0x800b0101 | Incorrect Date and Time Solution: Change date | 
| 0x80188302 | Package already present on the image | 
| 0x80188305 | Duplicate packages found in update set | 
| 0x80188306 | File Collision or Not Found Solution: Ensure list matches InstalledPackages.csv | 
| 0x80188307 | Package DSM or contents are invalid Solution: Keep only one type in the folder (CBS or SPKG). Choose the correct package type | 
| 0x80188308 | Not enough space | 
| 0x800b0114 | Certificate has an invalid name Solution: Enable flight signing | 
| 0x80004005 | E_FAIL Solution: Reboot the phone and try again | 
| 0x802A0006 | Try with another PC |