[Windows Phone 7 General] Jay_uk1185:
Hey Guys,

I have been a long time viewer of XDA and found it incredible useful for both Android and WP7 communities.

I have just updated my Samsung Omnia 7 to the 7720 (RTM) build of Mango after the official Zune 4.8 came out. This meant that it took lots of trial and error and basically mashing instructions from a few different tutorials to get the build running.

As I can't find much reference for people who are trying to do this post-4.8 i thought it would be helpful to post what worked for me. I will try my best to link to the original threads for the steps and downloads I used and I take zero credit for the hard work done by those who wrote these tools and scripts.

(MODS: As this is my first post I couldn't put this in the Dev/Hacking forum, if up to scratch and necessary could you move it there?)

So here we go:

You will need:

WP7 Handset running NoDo

MicroUSB Cable

Windows 7 or Vista PC

Patience

A couple of hours to spare

Please note that as per every other tutorial of this kind, you are doing this to your own phone... don't blame me if things go bad!

This method of updating will remove your Chevron Unlock - if your a homebrew fan then i would look for other tut's or wait for official update!

1: Download this "Mango for All 0.3" from here

2: Extract the folders in the zip file to C:/takeonetomango .

3: Download "7720.rar" from here (originally found in this thread)

4: Extract the contents of 7720.rar to C:/ (VERY IMPORTANT! - you should end up with C:/RCtoRTM, C:/Zune etc).

5: If you currently have Zune and the Windows Phone Support tool - UNINSTALL THEM.

6: Open C:/Zune and run "Startzunelocal.exe" to install the (now old) Zune 4.8 Beta.

7: Open C:/Zune/Update and install "UpdateWP.exe" from either the x86 or x64 folder depending on which windows you use. (This is something of an idiot test. If you don't know which you should choose - stop here. Put the down your phone, uninstall Zune and put the official zune back - you should wait for the official mango update as this can seriously damage your phone.)

Explanation: So far, all the tools used to provision the phone and force the updates rely on the version of Zune and the WP Support Tool to match. Since the Zune 4.8 was officially released, there isn't a matching Support tool, which will cause all these bat files to fail their checks. This is why we will be rolling back to the old 4.8 beta a couple of times, just to please those checks.

8: Now you should have Zune Beta and the supplied UpdateWP installed. Now navigate to C:/takesonetomango. Plug in your phone and quit zune (you may need to wait a few minutes for the windows device driver to install). DO NOT UPDATE ZUNE AT THIS POINT. QUIT ZUNE.

9: With your phone plugged in and zune no longer running, right click "Update.bat" and run as Administrator

10: Follow the steps that appear in the command prompt. This will now do a backup of your phone and move it to a safe place (this is because you will need to go back to NoDo to get the official Mango update).

11: Go and put the kettle on. This is now going to take a while depending on how much stuff you have on your phone.

12:When the backup is done, it will move this backup to a safe place. Press any key to start that and finish drinking your coffee.

13: Once the backup is moved the command prompt will now do the interesting stuff. Its going to "Provision your phone" to trick Zune into thinking your a developer. Follow the instructions and be VERY PATIENT.

14: Once its all done, it will launch Zune. Stop any Sync'ing and go straight to check the phone for updates.

15: It should now say an Update is available and welcome to the Mango ISV beta. Hit Update now. You must update to the latest Zune first - this is fine - go for it.

16: When zune has updated, plug the phone back in and check for updates again. Now it will install the Mango 7712 (beta 2) update. Your phone will restart a couple times, be patient and wait until it has done TWO updates to your phone. Another coffee would be good.

CONGRATULATIONS! You now have Mango on your phone. However its not the latest RTM that you have been hearing about. So lets go install that -

17: With your phone unplugged, uninstall Zune again. And make sure you uninstall the "Windows Phone Support Tool" if it shows up in the program removal list.

18: Now go back to C:/Zune and install that old version again.

19: Now install "UpdateWP.exe" from the correct folder in C:/Zune/Update

20: Plug in your phone. Wait for the device driver to install again.

21: If Zune launches, quit Zune.

22: Go to C:/RCtoRTM and run "ISVto7720.bat" as an Administrator

23: This will take quite a while. All those other files in there are actually the RTM update itself. This one doesn't come over Zune, we only went back to the old zune to satisfy the checks in ISVto7720.bat.

24: After you have drank a few more cups of coffee your phone will have rebooted and installed the RTM release.

At this point you will need to unplug your phone and start playing with it. My apps and files and all settings etc stayed in place so yours should too.

Whilst playing with the new features on there you will want to launch zune and get it to update itself to the official 4.8 again otherwise the phone won't sync with it.

It's important to keep the C:/takesonetomango folder as there is a handy file called "Restore.bat" which will use the backup created earlier to put NoDO back on your phone as Microsoft says you will not be able to get the official release unless NoDO is on your phone.

Hope you find this useful. If I have linked to something and not given credit to the original author please let me know and I will change the credit.

Enjoy :)

Tips:

1. If you have any problems with errors for "prov.cab" users have reported that sometimes rebooting can sort it, otherwise edit the update.bat file with the explicit path to prov.cab. Thanks to everyone in the thread who suggested this to help others!