NexusHD2-IceCreamSandwich is a HD2 ROM based on Nexus One's AOSP ICS ROM which is compiled from the source code.

• Include tytung's 2.6.32.15 ICS kernel beta 6.
• Include tytung's ICS ramdisk (initrd.gz).
• Include the required proprietary binaries files and the HD2-specific files (they are not in AOSP ICS) from my AOSP GB ROM (i.e. NexusHD2-Gingerbread).
• Please give credits to texasice (for N1 Android 4.0.1 ROM), ankuch (for EGL fix v6.1 and software video codec), rapmv78 (for newer EGL fix) and me (for Android 4.0.2 ROM, the kernel and other fixes) respectively if you reuse any of our works. Thanks. 

• ROM: NexusHD2-IceCreamSandwich_Beta7.zip | mirror | (Please don't mirror. Thanks.) | md5sum: 3D44361FC83C8ED1084A6E1CC8D311CD
• cLK kernel: NexusHD2-Kernel_2.6.32.15_tytung_ICS_Beta6-cLK-update.zip.
• MAGLDR kernel:NexusHD2-Kernel_2.6.32.15_tytung_ICS_Beta6-MAGLDR-update.zip. (This is included in the ROM in default.)

• Please use at least 200MB system partition and 2MB cache partition.
  • Please refer to ksubedi's HD2 NAND Toolkit and/or mskip's guide.
  • Cache partition (/dev/block/mtdblock4) is only used by CWM.
  • Cache partition size is not important because I use data partition (/dev/block/mtdblock5 is mounted as /data/cache) as cache space (/cache) when running Android.
  • If your HD2 has bad NAND blocks, you may need larger partitions.
• Full Wipe. (Only wipe Dalvik Cache while upgrading and wanting to retain the data.)
• Flash the ROM.
  • MAGLDR: Flash NexusHD2-IceCreamSandwich_Beta7.zip, then reboot.
  • 　 cLK　 : Flash NexusHD2-IceCreamSandwich_Beta7.zip and NexusHD2-Kernel_2.6.32.15_tytung_ICS_Beta6-cLK-update.zip, then reboot.

• Flash framework-res.apk_v401_without_softkeys.zip (Default in ROM.)
• Flash framework-res.apk_v401_with_softkeys.zip (You need to change ro.sf.lcd_density from default 240 to 200 or other values to fix the overlay of the softkeys and the keyboard.) (Or install ICS keyboard from the Market or get the apk here.)

• Phone Calls
• Audio (Credit to firesnatch and texasice.)
• SMS
• Data: 3G/HSDPA using PPP (PPP is stable than RMNET under ICS ROM currently.)
• Wi-Fi
• Bluetooth
• GPS and AGPS (Credit to tytung and qwerty_7564.)
• Touchscreen
• Vibration
• Charging
• All sensors
  • BMA150 3-axis Accelerometer
  • AK8973 3-axis Magnetic field sensor
  • AK8973 Orientation sensor
  • CM3602 Proximity sensor
  • CM3602 Light sensor
• Wired earphone/headphone (Credit to zivan56.)
• Data usage (i.e. Network Stats and Quota) (Credit to tytung.)
• Hardware Acceleration OpenGL (Credit to rapmv78 and so on.)
• Hardware Acceleration OpenMAX codecs (Credit to ankuch.)
• Software video codecs (Credit to ankuch.)
• Gallery
• YouTube
• WiFi signal strength icon in Status Bar. (Credit to the CM team.)

• USB Mass Storage (Install third-party apps, e.g. USB Mass Storage for ICS.) (The files in the SD card are sometimes out of sync between HD2 and Win7 after deleting a file. So use it at your own risk.)
• Camera (ICS Camera Driver Development)
• Native Screenshots (Run the command adb shell screenshot.)
• Native WiFi Tethering (Install third-party apps, e.g. wifi_tether_v3_1-beta7.apk.)
• Native USB Tethering
• Bluetooth in-call
• VPN