[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] curtis333c:
I have finally gotten Mango 7720 installed on my HD2 after 2days of trying, I was continuously getting sim card errors; plus the software encrypted my card so now nothing can read it. I installed Mango 7720 but only used Zune to update once. Here is how I did it, it’s very simple just follow these steps.

You must have these software programs to START:

(Radio 2.15.50...) installed, Magldr1.13, Zune Downloaded and Install the latest version, : HD2-7720fix Extract to a Folder and extract WP7 Update Cab Sender to another folder: Download Mango 7720 actual CAB Files: the V2 ROM HD2_Updatable_XBmod_Yuki_v2_native Extract to a folder DeviceProvisioning.cab

Okay here goes the most important Parts… to prevent Sim Card Error do not use a sim card when installing V2 ROM HD2_Updatable_XBmod_Yuki_v2_. Do not use NO sim card when updating until update 7392. After the phone boots up with update 7392 installed. Put in sim card and go to setting and in setting go to about phone and reset phone. The phone will even use your locked sim card for this point. After phone restart with sim card continue to update to the next update which is 7392-7403 and 7403 has finished installing please do this next ---- Download this package HD2-7720fix.rar. If needed install updateWP from the folder "update tool". (Choose the version you need between x86 or x64) Download and decompress WP7 Update Cab Sender.zip in a folder, it will be your tool to send all custom packages, backup and restore. Download DeviceProvisioning.cab and put it in this folder. Launch WP7 Update Cab Sender.bat and choose S to send this package to device- The device will apply this update after this process. If you get an installation error, that’s fine take out battery and restart phone. Once your phone restarts, plug it into your computer to use Zune to for this one and only update using Zune. This update is a major one and it will take about 2 hours so be patient!!!! Your phone will work flawlessly after this update. PLEASE FOLLOW THESE INSTRUCTION BELOW

1. of course, u need magldr installed 2. enable to use last 24 mb of nand from magldr

3. clear sdmbr from magldr menu 4. flash v2 rom from yuki/xbmod thread

note: if u have any other wp7 already installed, dont bother goin back to stock. just flash v2 over it.

5. download the "official update cab" from post 3 (bottom) of the yuki/xbmod thread and extract in a folder

note: in the procedure that i followed, i didn't need 2 of the rar files in the zip. these are: 7392-7401.rar and 7661-7720.zip.

6. download "WP7 Update Cab Sender.zip" from post from post 3 (bottom) of the yuki/xbmod thread and extract in another folder.

note: if u use xp then probably u need to download "wp7_cabsender_winxpfix.zip" and extract the contents in the extracted "WP7 Update Cab Sender"

7. download "HD2-7720fix.rar", extract in a seperate folder. install update tool form that folder (version that matches u'r os - x64/x86).

phase 2: the fun part (actual update)

note 1: the basic is that in every step that follows, u put the extracted cabs from a particular update rar file (or zip in 1 case) in the "WP7 Update Cab Sender" folder, send the cabs to the device, when done (u'll know when) delete the cabs from this folder. continue in this way untill all updates are done. u can find all update files in the "official cab updates" folder.

note 2: although u have the updates downloaded, the update procedure requires net connection just to start the procedure. actually nothing is downloaded. i guess it just routin checks if pc is connected to the internet since that's the standard procedure.

note 3: u should set date/time settings to auto.

1. extract the cab from 7008.rar file into the "WP7 Update Cab Sender" folder. run the bat file (WP7 Update Cab Sender.bat) in the folder. press "s" to send it to the device. it will prepare the update, restart phone, install update, restart phone and tell u that the update has been done. if error occurs it will let u know about it after restart.

2. following step 1, install all updates till those from the 7403.rar (install all cabs in the update folder, there r multiple cabs). follow the order of updates. but remember, DONT use 7392-7401.rar.

note: no need to restart/reset or even disconnect the phone after an update is complete. just move on to the next update. just make sure the date in the calendar tile is displayed right. if not adjust the date.

3. installed 7403 update and booted successfully?? congrats. now