It has been a whole year since Miui announced that they would be suspending official support for the Vibrant, and nothing has changed. On October 22, 2012 I announced in a notice (which can be found below) that I would be no longer updating this guide "as of the moment". However, I would like it to be known that it is now more like 'as of forever'. Please, if you wish to get the latest ROM(s) for your phone you should head check out my Vibrant Bible thread: http://forum.xda-developers.com/show....php?t=1982728. This guide is now depreciated.
Sadly Miui is no longer supporting the Samsung Vibrant. That means no more Gingerbread updates nor will there be any official Miui v4 coming our way. It's rather disappointing, however if you wish, you can still find a download for Miui.us's Gingerbread v2.3.30 rom (last official Miui rom released for the Vibrant) in step 5 of the guide below. If you have a craving for some Miui v4 love, there is a port by 360° Productions that can be found here or here. As of the moment, this guide will no longer be updated...
Table of Contents:
Post #1- Flashing the MIUI Rom (Easily)
Post #2- More Information (Tips, tricks, etc.)
Post #3- Custom Kernels/Modems/Themes for MIUI
FLASHING THE MIUI ROM (EASILY)
In this guide I will show you how to revert to stock (2.1 Eclair), flash CWR (by flashing the Overstock Kernel via ODIN), then flash MIUI. The process may seems long in word format but once you have done it a few times it's a very quick process... Now to the detailed instructions...
(If rooted) Backup All Apps + Data with Titanium Backup, but try to avoid restoring system apps as they are typically to blame for bugs.
(If not rooted) Backup your apps with AppBrain. I have never used this app personally. However, from what I hear it is an excellent app for backing up apps for non-root users.
Backup your contacts (I suggest backing it to the SD Card)
Use "SMS Backup +" for saving/restoring text messages
(If rooted) Do a Nandroid Backup in CWR
As a precaution you may back up all the contents of the SD card to your PC. However, this isn't necessary
To do a completely clean install you can reformat you SD card by going into the Menu > Settings and unmount and format both internal and external SD cards. Just make sure you made a backup of important documents and files before reformatting.
2. FLASH BACK TO STOCK (2.1 Eclair)
First, download the files and program below:
ODIN (MD5: E012B512C1579C3AF7A38A27FD905B86)
PIT FILE (MD5: 1D927B36D2FA807A22E64FC86B445130)
TAR FILE (MD5: 632730F6B637F53E5B10E5CBC8B966A7)
After downloading it is suggested you use hashtab to verify the MD5.
After that move the files to your desktop.
3. DOWNLOAD MODE
NOTE - Do not remove the USB cable from the phone while ODIN is running as this may cause your phone to brick. If you removed the USB to early and now your phone is presenting you with a "Phone.. ! ..Computer" image when booting then go down to the "More Information" section in this guide for the fix.
Open ODIN on your computer
Plug in the USB Cable to the computer
Remove the battery from the phone.
Plug USB into Phone
Hold down BOTH volume buttons and while holding both, insert the battery.
Two to three seconds later your phone will be in Download Mode.
*Again, do not remove connection while ODIN is running.*
Go back to ODIN on your PC. There should be a yellow box under ID COM, saying something like COM 5. If not try downloading and installing these Samsung Drivers.
Click the PIT button and select the PIT file from desktop
Click the PDA button and select the TAR file from desktop
Re-partition is checked!
Click Start. Unless ODIN hangs, you should see a progress bar start soon after. The process takes a few minutes and you told ODIN to reboot once done so when your phone boots up, you are on stock JFD.
5. DOWNLOAD THE MIUI ROM
Click here to get MIUI v2.3.30 from MIUI.us for the Vibrant.
If you want something with a little more pizzazz then stock MIUI check out some of 360° Production's variants:hashtab to verify the MD5. Then place the file on your internal SD card, the one that is 12GB and should have a folder called "DCIM."
You do not need to rename the ROM.
6. GET CWR
Download the file below:
Once downloaded move it to the desktop, then load ODIN
Repeat step 3 to get into Download Mode
In ODIN Un-check Re-Partition and Auto Reboot (F. Reset Time should be checked)
Click the PDA button and select the Overstock Kernel from the desktop
Click start. Once it has finished (passed) remove the USB cable from the phone and do a battery pull
7. FLASH THE MIUI ROM
Hold both volume buttons and power. Release power once the Vibrant logo is up.
In CWR: Do a Wipe Data/Factory Reset, Wipe Cache Partition, & Wipe Dalvik Cache (advanced menu)
Go to “install zip from sd card”, select zip from sd... Go and find the MIUI ROM you put on the sd card and flash it.
It should start flashing and then enter a bootloop (Vibrant [Splash Screen] > Galaxy S Cyanogen(MOD) > CWR > Repeat). After it does this loop a few times do a battery pull.
Reboot into recovery, which will now be blue (Hold both volume buttons and power. Release power once the Vibrant logo is up).
Go to “install zip from sd card”, select zip from sd... Go and find the MIUI ROM you put on the sd card and flash it again.
This time it should successively install.
Go to "advanced", and select "Fix Permissions". Once it has finished fixing permissions go down and hit "++Go Back++"
Reboot your device.
Do not touch the phone for 5-10 minutes after it has booted... Do Absolutely Nothing! This helps clear any possible bugs.
8. RESTORE (OPTIONAL)
After going through the MIUI setup menu and have come to the home screen you're going to want to restore. (If you flashed the Lithium, Prime, or SGSII MIUI variants then you are first going to want to go into your "Themes" app and Re-apply the theme marked "Current".) Now, to restore you are going to go to the Market, Sign-in, Approve terms, Re-install Titanium Backup and/or AppBrain. Restore all Missing Apps+Data. I highly suggest you do not restore any system apps. After that restore anything else you have. (i.e. text messages) and reboot again.