Wednesday, August 17, 2011

Installing Cyanogen Mod 7 on Galaxy S GT-I9000

What is CyanogenMod?

CyanogenMod is an aftermarket firmware for a number of cell phones based on the open-source Android operating system. It offers features not found in the official Android based firmwares of vendors of these cell phones.

Some of the features provided by this firmware are as follows,
This firmware also supports Voodoo Sound App!

To check all the features provided by this firmware check the CyanogenMod siteOfficial CyanogenMod site!.

Today, I'll be explaining you how to install Cyanogen Mod 7 on Samsung Galaxy S GT-I9000.

Prerequisites for installing CM7,
  1. For installing CM7 you need to be on Froyo base, with safe bootloaders. You can install the Froyo baseXXJPY(2.2.1) with hardcore's SpeedMod kernel from here.
  2. Download the latest from here.
  3. Transfer the zip file downloaded in previous step to the root of your internal SD-card of Samsung Galaxy S.
Follow the steps in order to do a clean install of CM7 on your Samsung Galaxy S,
  • Assuming that you are already on the safe Froyo base, turn off the device by pressing power button, wait till the device vibrates. This is the acknowledgement that the device has been successfully turned off.
  • Now, enter Recovery Menupower button + home button + volume up button.
  • Go to Mounts and Storage, use volume keys to navigate through the menu. Perform the following things,
    • format /system
    • format /cache
    • format /data
  • Return to Recovery Main Menu.
  • Select Install zip from sdcard.
  • Select you downloaded before in step 2 of prerequisites.
  • Select yes, to confirm your action.
  • It will perform a efs backup, install CM7 kernel and reboot.
  • Phone will automatically install the update.
  • Wait until your phone is fully booted.
The last step may take some time, it is perfectly normal.

Congratulations on successfully installing CyanogenMod 7 on your Samsung Galaxy S!

(OPTIONAL)If you need Google apps like Android Market, GTalk, GMail, Google Maps, etc. you need to install Google Apps from here.


About phone:


  1. hi, thanks for the good update, i am going to try this.... any one else...

  2. @Karthik
    I'm glad u liked the post!
    Do give it a try its worth it!
    If you have any issues while installing do let me know.
    I'll help you resolve them.

  3. Do we really need to downgrade to Froyo first? I'm already on Stock Gingerbread.

    If yes, how would we know when Gingerbread's Bootloader is gonna be "Safe", if ever...

  4. Yes! Its a must to downgrade to safe froyo bootloader. CM7 Team recommends froyo bootloader, although I have tried flashing CM7 directly from stock Gingerbread and it works just fine!
    If you face issues just reboot in recovery mode and clear data and cache.
    I would still recommend going through the above mentioned procedure to avoid any problems...

  5. There are certain bootloaders which restrict you from flashing custom firrnwares, these are called locked bootloaders. Safe bootloaders are the ones that have no restrictions!


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