- This is a fast, stable, and clean ROM:
- compiled from the source code of the Google's AOSP Gingerbread 2.3.7 (GWK74 / Android 2.3.7)
- optimized for HTC HD2
- and released on Nov. 10, 2012 by tytung.
- Use the latest android-2.3.7_r1 source code.
- Having a tag name means it is well-tested and stable.
- Kernel: tytung_gb_r16
- Support Wi-Fi Calling, Wi-Fi IEEE 802.1x/EAP, native Wi-Fi Tethering, native USB Tethering, real Wi-Fi/Bluetooth MAC address, Low-power mode Bluetooth, UTF-8, CIFS, Yaffs, Ext2/3/4, NILFS, ReiserFS, BTRFS, and the official HTC extended battery.
Screenshots for old v3.2a:



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Information
===========
This is compiled from AOSP Gingerbread for Passion (i.e. Nexus One)
and has some modifications as follows.
- block ads (replaced hosts)
- add utility and root permission (added busybox, su and Superuser.apk)
- add 720p video playback (replaced libOmxVdec.so)
- fix camera (replaced libOmxVidEnc.so and modified source code)
- fix camcorder (replaced with new cam libs and some .so files)
- add HSDPA icon (modified SystemUI.apk from source code)
- add Battery % icon (modified framework-res.apk)
- add Headset icon (modified framework-res.apk from source code)
- add Reboot menu (modified framework-res.apk, framework.jar and android.policy.jar from source code)
- add "Download any file type" support for Browser (modified DownloadProvider.apk from source code)
- fix USB Mass Storage and USB Tethering (modified vold and services.jar from source code)
- fix LED Notification (modified services.jar from source code)
- add "X" boot animation and ringtones from Nexus One Gingerbread
- add Nexus S Live Wallpaper
- add the latest Google Apps (Maps, Gmail, Market, etc.)
- add FM Radio (modified a lots of stuff from source code)
- add other necessary modifications to make it working on HD2
- remove Japanese and Chinese IMEs (removed OpenWnn.apk and PinyinIME.apk), etc.
- Use CWM (ClockworkMod) Recovery, providing the native Android update.zip installation and Nandroid backup and restore, to backup and/or update your system easily and safely.
- It's about 3~5mA battery consumption on standby when turning on WiFi, Bluetooth, GPS, and Auto Sync settings.
Working
===========
Everything is working.
- Phone
- 3G/HSDPA (RMNET is fast and stable for MAGLDR. Or PPP for cLK.)
- Wi-Fi (Support IEEE 802.1x/EAP authentication and Ad-Hoc Wi-Fi.)
- Bluetooth (Support low power mode.) (Thanks to Trilu and Charansingh)
- GPS with AGPS support
- Network Location
- 720p Video Playback (H.264 up to 720p with hardware decoding)
- Camera (5MP)
- Camcorder (800x480, H.263 and variable 30fps with hardware encoding) (Courtesy of Gpc)
- LED Notification (Courtesy of Gpc)
- USB Mass Storage
- USB Tethering (Use build-in "USB tethering" feature directly or install Wired Tether 1.4.apk.)
- WiFi Tethering (Use build-in "Portable Wi-Fi hotspot" feature directly or install Wireless Tether 2.0.7.apk.)
- FM Radio
Tips
===========
This ROM is better than NexusHD2-Froyo now.
- You can find all earlier ROMs in my complete backup website. http://nexushd2android.tytung.com/nexushd2-gingerbread/releases
- MAGLDR 1.13 issue: automatically boot into Android while charging. (Detail)
- Two-way Call Recording using CallRecorder. (Tested on the latest free version: CallRecorder_v.1.0.27_alpha_build03.apk)
- Bluetooth PAN (Personal Area Network) using android-wifi-tether. (Tested on wireless_tether_2_0_7.apk)
- Enhance your speaker volume by installing Volume+ v1.7.x.
- How to keep data when migrating from V3.x SD build to V3.x NAND ROM.
Installations
===========
You should have either MAGLDR 1.13 or cLK 1.4.0.1 bootloader on device.
- CWM (ClockworkMod) Recovery Version via SD card (Flash update.zip)
- Installing CWM_Recovery_for_NexusHD2 (135MB system and 2MB cache) to create a space-efficient NAND partition layout designed specifically for NexusHD2 series is highly recommended if coming from another ROM.
- For Android installation you need to enter CWM Recovery.
- CWM: backup and restore => Backup you current ROM first. (optional but recommended)
- CWM: wipe data/factory reset if coming from another ROM or wanting to have a clean installation. (optional but recommended)
- CWM: install zip from sdcard: navigate to NexusHD2-Gingerbread_V3.3a-(Android-2.3.7).zip to finish the Android installation.
Installation Guide for MAGLDR 1.13:
- Flash MAGLDR
- Download MAGLDR 1.13 (606 KB)
- Enter SPL by holding VOL DOWN key while booting the phone. (Make sure you have HSPL.)
- Run ROMUpdateUtility.exe to flash MAGLDR 1.13 (magldr.nbh).
- Flash ClockworkMod Recovery
- Download MAGLDR_CWM_Recovery_v3.2.0.0_for_NexusHD2_135M.zip (5.0 MB)
- Enter MAGLDR 1.13 by holding power key while booting the phone, and then select "USB Flasher" via "VolUp" and "VolDown". Confirm key is green "Call" button.
- Run DAF.exe to flash ClockworkMod Recovery 3.2.0.0 (recovery_3.2.0.0_leo.img).
- Flash Android ROM
- Enter ClockworkMod Recovery when you're on MAGLDR 1.13 (hold "Power" button during boot) and select "AD Recovery" or "Boot AD SD" (if ever copied CWM's initrd.gz and zImage to SD).
- Flash NexusHD2-Gingerbread_V3.3a-(Android-2.3.7).zip (92.08 MB)
Installation Guide for cLK 1.4.0.1:
- Flash cLK
- Download cLK_1.4.0.1_bootloader_for_NexusHD2_135M.zip (646 KB) and Google_usb_driver_r4.zip (8.3 MB)
- Enter SPL by holding VOL DOWN key while booting the phone. (Make sure you have HSPL.)
- Run CustomRUU.exe to flash cLK 1.4.0.1 (RUU_signed_cLK_1.4.0.1_system_135_cache_2.nbh).
- Flash ClockworkMod Recovery
- Download cLK_CWM_Recovery_v3.2.0.0.zip (5.0 MB)
- Enter fastboot mode by holding back key (left arrow) while booting the phone.
- Run fastboot_install_recovery.bat to flash ClockworkMod Recovery 3.2.0.0 (recovery_3.2.0.0_leo.img).
- Flash Android ROM
- Enter ClockworkMod Recovery by holding home key while booting the phone.
- Flash NexusHD2-Gingerbread_V3.3a-(Android-2.3.7).zip (92.08 MB)
Extra:
- Flash some add-ons below if needed.
- Flash dtapps2sd-2.7.5.2-signed.zip for Apps2SD+. (2.59 MB)
- Optional. Flash it only when you install too many apps and the internal memory (i.e. data partition) is out of space.
- If you ever enabled Apps2SD+, you need to flash it every time when upgrading the ROM.
- Reboot
Add-ons:
This section is reserved for everyone.
If you can provide any new features via a flashable update.zip for CWM Recovery, I will place your name here.
The description is a must when you provide a file.
I don't test each add-on myself, please backup your current system before installing any of them.
- Jan. 11: dtapps2sd-2.7.5.2-signed.zip (Apps2SD+) (Credit to tkirton) (Added screenshots for ClockworkMod Recovery and A2SD+.)
- Mar. 24: A2SDKillerV11_GB.zip and more (Data2SD support) (Credits to Sibere, and thanks to hdnebat)
- Apr. 03: CM7_GB233_Mms.apk_update.zip (MMS blurry pics fix for T-Mobile US users) (Credit to CM7)
- Apr. 09: MIUI_Camera_v15_update.zip (Widescreen camera) (Credit to MIUI)
- Sep. 03: Chinese and Japanese IMEs
- Nov. 05: Gingerbread237-No_battery_percent_icon_update.zip (Credit to tytung)
- Nov. 10: RTL_farsi_arabic_support_NexusHD2_V3.2a_ByTamer-signed.zip for NAND or NativeSD (RTL plus Farsi and Arabic Patch for GB2.3.7) (Credits to Madmack and Ayman. And thanks timoz73 and gilbert32 for making it for my AOSP 2.3.7.)
Uninstallation
===========
You should flash stock official Windows Mobile 6.5 ROM.
Credits:
========
Cotulla, TYTung, Hastarin, Markinus, NetRipper, Dcordes, Letama, Rajko, Gauner, Diem, Dan1j3l, RaiderX303, Pongster, Gpc, Cedesmith, Arne, Trilu, Charansingh, Seadersn, Arif-ali, Mdebeljuh, Jdivic, etc.
Please consider making a donation to Cotulla for his great MAGLDR.
Please consider making a donation to Cedesmith for his great cLK.
And if you appreciate my work and want to buy me a drink, please consider making a donation too.

Thank you.