If you want the Ice Cream Sandwich Features and also want the beautiful user interface of MIUI ROM then you will be happy to know that there’s already a MIUI 4 update in our Samsung Captivate called Dr. Miui v4. Thanks to nygfan760 who ported the drZMIUIv4 Rom for Galaxy S i9000.

If you want to try the Dr. MIUI v4, just follow the simple steps below.

Note:

• Make sure that your phone battery is charge at least 60%
• Backup your phone data into your computer.
• Turn on USB Debugging, on your homescreen tap Menu> Settings> Application> Development. Then, make sure that USB debugging is checked.

Requirements:

• Samsung Captivate SGH-i897 (rooted and Clockworkmod recovery installed)
• USB Data Cable
• Computer

1. First, download the miuiportugal_I9000_2.2.24_AIO_Signed.zip on your computer.
2. Then, connect your device to the computer using your USB Data Cable.
3. Next, copy the zip file you downloaded earlier to the root directory of your SD card.
4. Disconnect your phone to the computer.
5. turn off your phone.
6. Go to Clockworkmod recovery: press and hold the Volume up + Volume down + Power button.
7. Once you’re in the recovery, do a nandroid backup by selecting backup> backup and restore> then backup to start saving your old ROM. (This will make a full backup of your existing ROM, and save it to the SD card. You can restore from this backup, if something gets messed up with the installation.)
8. Now do a full wipe by selecting Mount and Storage then wipe the following:
   • Format System
   • Format Data
   • Format Cache
   • Go back to main menu and select advance then wipe dalvik-cache.
9. From the main menu select install zip from Sd card> choose zip from Sd card> then select the miuiportugal_I9000_2.2.24_AIO_Signed.zip to start flashing the Dr. MIUI 4 ROM.
10. Finally, go back to main menu and select Reboot system now.

Congratulations, you have successfully updated your Samsung Captivate Firmware to Dr. MIUI v4. Cheers!