this is a straight forward step by step tut
i take no responsibilities if u brick and take no credit for it
all credit do to all that make this happened
also do research before you do anything, i always do it before any upgrade or mod to any device being cellphone or any kind of electronics THE SEARCH BUTTON IS JUST LIKE GOOGLE IT WILL BE YOURE BEST FRIEND, and after a lot of searching then post youre questions so the comunity can help!
the back up is created at
C:\Users\YOURE USER NAME\AppData\Local\Microsoft\Windows Phone Update
and it will be a folder with a large sequence of alfa numeric name
i advice to copy this to other location because when you upgrade or downgrade the zune software it delets this file
also in this tread is more indeepth on wp7 backup
if you cant see appdata folder try this:
1) Open Windows Explorer (Start\All Programs\ Accessories)
2) In Windows Explorer go to Computer\"driveletter"\users\"username"
3) With "username" highlighted, click "Organize" (top left of Windows Explorer window) and then select "Folder and Search Options"
4) Check the "Show All Folders" box in the General tab
5) Go to the "View" tab
6) Click the "Show hidden files, folders, and drives" radio button
if you already updated or downgraded zune software sorry but you will have to reflash youre wp7 with a stock or unbranded rom and start over, i did cause i wanted to have mango unlocked to load sideapps
to restore last state you have to download windows 7 backup tool 1.6 or 1.5,
1.5 was the only one that worked for me
to do the backup just open app click restore and make sure youre backup file is in
C:\Users\YOURE USER NAME\AppData\Local\Microsoft\Windows Phone Update directory
you must have zune software prior version 4.8 for this to work with provision.exe so it will do a full backup, if you use zune 4.8 it wont do a full backup. YOU BEEN WARNED
1.download and unpack the files www.mediafire.com/?5zclb0ou8zdll
2.install file WPSupportTool-x86.msi for 32 bit or WPSupportTool-amd64.msi for 64 bit
3.run Provision.exe, it will make backup of youre phone and it will run all files to prepare youre phone for mango update
4.when it finishes close provision app and run StartZuneLocal.exe to install zune 4.8, after it finishes connect phone and follow instructions and all done welcome to MANGO!
if theres an error please post it so i can edit the post for future members
saludos a todos desde puerto rico!