Alot of custom themes are update.zip installations because its the easiest and fastest. Also installing a ROM also uses the update.zip method as well as extra packs that come with the ROM that are not preloaded onto their package. Here I will explain what you need to do a quick and easy update.zip installation.
First things first!!!! Make sure that whatever theme, or extra you are trying to install is compatible with the ROM and version you are using! This is a must if you do not read carefully you can brick your device or you will have to wipe everything on your device.
1. Make sure your device is ROOTed
2. You will either need SPRecovery or ClockWorkMod Recovery installed on your device. Once you install a ROM either program pretty much comes preloaded with the ROM file
3. Boot your device into Recovery mode – Here’s how
- Completely power down your device
- Before you press the power button to turn the device back on hold “X” on the keypad
- (If you are using an Ultimate Droid ROM, you can easily press the power off button on your device and it will have an option to Reboot the Phone into Recovery Mode.

Ultimate Droid Recovery Mode
Continue Reading if you are using SPRecovery:
- Now that you are in Recovery mode through SPRecovery the next steps are simple.
- On the D-PAD, scroll down to “Install”
- Choose “Allow Update.zip Installations“
- Next click on “Install Update.zip“
– It should take a few moments for the theme to install depending on how large the file is. –
- Once it says it is completed or finished on the D-Pad select “Reboot“
Continue Reading if you are using ClockWorkModRecovery:
- Now that you are in Recovery mode through ClockWorkRecovery the next steps are simple.
- On the D-Pad scroll down to “apply sdcard:update.zip“
- Next choose “Yes – Install /sdcard/update.zip“
– It should take a few moments for the theme to install depending on how large the file is. –
- Once it say it has been completed or finished use the Power button to go Back
- Click “Reboot System Now“
Your new Theme, ROM or Extra should now be installed successfully if not there is something wrong with your update.zip file or the way you installed. Please post a comment or try the above steps again.