Install MIUI 4 on Nexus One

Today I’ll share how to install MIUI 4 on Nexus one. MIUI 4 has got a great interface which is a cocktail of MIUI’s interface and the features of Android 4.0.3 Ice Cream Sandwich. Although MIUI 4 ICS 4.0.3 is in beta stage, but you can easily get a sneak-peak to this cool custom ROM using the following steps.

Things to know first :

• First, prepare your backup option. Blackrose must be installed on the Nexus One. This is a custom bootloader required for you to be able to load custom ROMs on your Nexus One. See this guide for installing Blackrose.
• Your Nexus One will also need a newer, updated Hboot (specifically, hboot_220-16-200.nb0). Download this Hboot file from here. Flash it to your Nexus One using the ADB commands “fastboot flash hboot hboot_220-16-200.nb0″ (without the quotes !) followed by “fastboot reboot-bootloader” (also without the quotes).
• Next, download the MIUIv4 Beta ROM file to your computer. Get the ROM here.
• Make a back up of all the important files on your phone such as bookmarks, contacts, SMS, and APNs (Internet settings).
• Make sure that your phone hast at least 50% battery power, because it might run out of battery during the process.
• Make sure we are not liable if your phone gets damaged or your phone loses data due to your following this guide.

Steps Involved :

1. First, transfer the ROM file that you have downloaded to the SD card of your Nexus One.
2. Now, turn your phone off and reboot into ClockworkMod Recovery. You can do this by holding down the Trackball and the Power button until the device boots into the bootloader mode.
3. In bootloader mode, press the Power button once. Scroll down to “Recovery” (by using the Volume keys) and press the Power button to select. This will take you to recovery mode. In recovery mode, back up your existing ROM by going to Back Up and Restore > Backup.
4. Clear all data on your phone. Go to “Wipe data / factory reset”.
5. Then, “Wipe Cache Partition”, and finally, “Wipe Dalvik Cache”.
6. Go back to the main recovery menu.
7. Choose “ Install Zip from SD card”.
8. Select “Choose zip from card”, and choose the file that you have transferred earlier.
9. Confirm installation by selecting “Yes — Install MIUI-GER_v4_2.1.6_N1_4.0.3_Signed.zip.zip”. The installation will take a few minutes.
10. Now, Reboot your phone.

Voila! You have successfully installed MIUI 4 on your Nexus One. Enjoy Ice Cream Sandwich with its cool features !
Good luck !