[HD2 Windows Phone 7 Development] sweetdoc:
ok i will post a noob friendly guide as the one in front is bit technical.... will come back in a moment. videos will not be possible as its a long process and i just finished it...cant go back...

first download the rom from first page link. v2 is preffered with radio 5.51 t. for both t and euro hd2. radio 5.51 t is inside the rom, so you dont have to worry about it.

also download the latest zune software from ms site and install it.

1.. you start from either having wp7 any version, windows 6.5 or android on your mobile

2.. if you have windows 6.5 then you must make sure that hard spl 2.08 or higher is installed on it. this can be seen by holding volume button down and doing a reset. for more information see this http://xdaforums.com/showthread.php?t=611433 link. skip step 3. go to 4

3. if you have wp7 or android, you have to first install a stock rom. i usually install energy rom. here is the link..http://xdaforums.com/showthread.php?t=591784 to download...when device is off, keep pressing volume down button and press power button once. you will be in tricolor screen. attach the cable to pc and when the ; serial; changes to 'usb' start flashing the windows 6.5 rom from starting rom update utility as administrator..the rom will be flashed..let it start and boot properly.

4.. now you need to install radio 2.15.50.14....link is here..http://xdaforums.com/showthread.php?t=611787. intall it the same way you flashed the rom.

5. now download maglder 1.3 http://xdaforums.com/showthread.php?t=893618.install it the same way by going into bootloader..(the tricolor screen).

6. now when your phone restarts, it will be in the magloader menu. go down to last option and power it down.

7. insert the sd card. better format it first. make sure its the one which is supported by wp7 otherwise you get frequent freezes and restarts. i use sandisk class 2 8 gb.

8. switch on the phone and go to magloader menu by holding the power button. select services (10) by volume down key and press green button. in services menu select option 4, uselast24nand. you will go back to main menu and again select service and then option 5. clearsd MBR. confirm selection. now you will again be in main menu and this time select option 5 that is usb flasher. connect usb cable.

9. now go to the v2 rom that you downloaded from first page. run DWI and flash the rom. once finished set the time and date. no need to sign in with windows lives and no need to entering the ms code. you have flashed 7004 rom.

10. start the zune program it will detect you hd2, no need to changing its name to hd7. it will check for updates and ask you to whether update, press ok. it will first download the 7008 update and then your phone will automatically restart. then it will install the update on your phone which will show a laptop and your phone connected to each other with cable and a transfer bar at the top will show you the progress. once completed your phone will restart automatically and then zune will again search for updates and will show that you need to update to 7392. press ok and the same processs of 10/10 steps of downloading, restarting and installing will again start duing which time you have to do nothing just wait. updating to 7392 is a bit longer than 7008 so be patient. may be 20 minutes. so once its finished the zune will inform you that your phone is updated and you can use it now. you are at NODO now.

11. now choice is with you. if you want to wait for official release of mango 7720 then start using your phone by entering your live id and serial number that you took from ms for activation. it wont be long for them to release it. may be today, may be tomorrow. rumours are all over. BUT IF YOU WANT TO HAVE IT NOW THEN GO TO STEP 12.

12. download three files first. 1,hd2 7720 fix.rar, 2, WP7 Update Cab Sender.zip and 3.deviceprovisioning.cab. you can see the links in second post by xbmod on first page. now unzip the first two files but not the deviceprovisioning.cab file.

13. now go to hd2 7720fix file which you just extracted and inside hd2 7720 there are two files. go to update tool and click on x64 or x86 to install the program according to your windows of computer. once done, copy the deviceprovisioning file (once again without unziping) to WP7 update cab sender. AT THIS POINT MAKE SURE YOUR ZUNE IS NOT RUNNING, AND YOUR PHONE CONNECTED TO PC.now double click on the wp7 update cab sender and you will see dos windows opening. press s and it will send the cab file to your phone, which will automatically restart and again the same progress bar againt dark backgroung and phone and pc connected with a cable, will show on your phone screen. once completed again it will restart automatically. check the date and time and then connect to zune. it will again show update so update to 7403 the same way you did earlier.

14. when the phone restarts and connected to zune again, zune will show another update 7712. update it the same way, you did earlier updates. BUT THIS TIME BE CAUTIONED THAT THIS UPDATE IS BIG AND TAKE A LOT OF TIME TO DOWNLOAD, AND HOUR OR SO , THEN INSTALLATION EVEN TAKES MORE TIME..A TOTAL OF 2 HOUR FOR THIS INSTALLATION.

15. Once you are done with 7712 update, now you will again refer to the same file you already downloaded, hd2 7720 fix. inside this there is a file mango RTM. copy all the files from here and paste them to wp7 update cab sender. MAKE SURE YOU HAVE DELETED THE PREVIOUS CAB FILE (deviceprovisioning.cab) from here. ALSO MAKE SURE THAT ZUNE IS NOT RUNNING AND DEVICE IS CONNECTED TO PC. again run the tool by double clicking and the same dos window will pop up. press s to send all the files to phone and these will be installed the same way you saw the previous installs. once the phone restarts and the dos window shows that update complete, then close that window.

16. now your phone has updated to 7720 which you can check from settings and about. since a hard reset is recommended, switch off the phone when the magloader screen pops up and you see go go go 123456 press volume up and down buttons the same time and when it shows that data will be washed, press volume down button and the phone will be hard reseted.

17. once rebooted now you can set you phone, enter the activation code, windows live id.

18. before installing any xap files, atleast download one software from marketplace..

i m human so i might have done some mistakes while writting all this down. your correction in this regard is appreciated... i will request a link of this thread in first page from yuki and xbmod if they approve what i wrote.