[Galaxy i7500] Easy guide for updating to Galaxo!

Easy guide to updating to Galaxo! by “DaSchmarotzer

As of May 29, the files are now for Galaxo! The recovery is still 4.6.3, the latest as of right now.

Ladies and gentlemen, here’s a complete idiot’s guide to updating to Galaxo! It seems long and complicated, but it really isn’t. I was using the JC6 firmware on my phone before updating to Galaxo, but you don’t need any specific firmware. You don’t ever need to use an external SD card during this process.


**I suggest downloading and saving every folder directly on your desktop, so everything is easy to find.**

STEP 1 (ADB drivers):

You need to install the ADB drivers, which mean Android Debug Bridge. You’ll need those to operate the Android SDK correctly. You don’t understand what I’m saying? No worries, just follow the tutorial, and if you have a problem, post your question saying what went wrong and what happened.

Download the drivers here: MEGAUPLOAD – The leading online storage and file delivery service

I’m using Windows 7 (32 bits), so maybe the steps aren’t exactly the same for other versions of Windows.

Open your Galaxy, go into the Settings, select Applications, then Development, then tick USB debugging. Now plug it into your computer. Open up the device manager.

You should see an unknown device with a yellow exclamation mark. Right-click it and select update drivers.

Select Browse my computer.

Select Let me pick from a list of device drivers on my computer.

If you see a list of devices and you have to pick one, don’t select any and just click next again. Then, click “Have Disk”. Browse to the “usb_driver” folder, then select the x86 folder (which means 32-bits) and in it select “android_usb.inf”. If you have a 64 bits version of Windows, instead of going into the x86 folder, get the “android_usb.inf” that is in the amd64 folder.

Your device should now have the required drivers. More on that later, but for now just stick to the guide. If none of the three “android_usb.inf” seem to be working, you should try this one, it might solve your problem.

STEP 2 (Placing the Recovery, Update and .tar files):

You’re going to need those files:

The Android SDK: Download the Android SDK | Android Developers

This Donut firmware (JC6): MEGAUPLOAD – The leading online storage and file delivery service (used to restore Google Apps, don’t worry I7500L users, it’s the same for everyone)

The custom recovery (4.6.3): http://www.drakaz.com/FILES/GALAXY/?file=RECOVERY_4.6.3.zip (used to apply the update, among other stuff)

Galaxo http://www.drakaz.com/FILES/GALAXY/?file=Galaxo_V1.6.3.3.zip

I suggest saving all of those to the same place, to avoid confusion.
Start by placing the “android-sdk-windows” folder to the root of your C drive. The place doesn’t really matter, but you’ll have to type the path into a command prompt later, so if you follow my example, place it in the root of your C drive.

Extract “RECOVERY_4.6.3.zip”. You now have “recovery.img” and “RECTOOLS.tar.gz”. Take “recovery.img” and place it in the “tools” folder of the “android-sdk-windows” folder, which should now be located right into your C drive.

Now, rename “Galaxo_V1.6.3.3.zip” to “update.zip”. (Warning, you might have a problem if you don’t see the file extension. If you don’t, open a Windows Explorer window, press alt to see the menu, select Tools, then Folder Options, select the View tab, and untick the “Hide extension for known file types”.)

Then, extract “SAMSUNG.tar” from “I7500XEJC6.zip”.

Mount your phone, you’re going to be placing stuff on it.

Take “update.zip”, “SAMSUNG.tar” and “RECTOOLS.tar.gz” (the last one was in RECOVERY_4.6.3.zip), and place them on the internal SD card of your phone. I placed the three of those in no folders, directly on the phone, just in case. Alright!

STEP 3 (Recovery and update):

Power off your phone. It should still be connected via USB.

Open a Command Prompt (search for “cmd” in the start menu, and click on “cmd.exe”).

Type “cd C:\android-sdk-windows\tools”, of course without the “ ”. If you didn’t put the Android SDK on the root of your C drive, you’ll have to modify this line and put the actual path. Press enter.

Now type “fastboot flash recovery recovery.img” without pressing enter just yet.

Boot your phone into fastboot mode, do so by pressing and holding both the Call button (bottom left) and Power button (bottom right) at the same time, until you see on the phone that you are in fastboot mode. You’ll have about 15 seconds to press enter on the command prompt on the computer. If it works, you’ll see something else than “waiting for device” appear in the command prompt.

Fastboot on the phone (picture took by Chronodekar and his brother, thanks!):

When I tried to do so, it wouldn’t do anything. It would wait for the device, then my Galaxy would boot normally. To solve this, open the device manager on your computer and turn the Galaxy off again. You are going to boot into fastboot mode again, but you’ll have about 15 seconds to check the device manager (open it beforehand), and see if there’s a new device that needs drivers. My was something like Android 1.0 (with a yellow exclamation mark, meaning that there are no drivers). You’ll do the exact same thing as you did with the ADB driver, using the exact same driver (right click the unknown device, update the driver, select from a list, next, Have disk, Browser, then find the same “android_usb.inf”. Check the beginning of the guide if you don’t remember what to do.) You’ll need to do this during the 15 seconds the Android 1.0 will appear, so you have to be quick.

During the process, on the phone (picture took by Chronodekar and his bro):

Success (command prompt):

If it worked, well great, now power off your phone again. Boot it again, but this time in recovery mode. Do so by holding the “Lower volume button”, the Call button and the power button. If it works, you’ll see a green menu with lots of choices. You’re almost done.

Go down and select “Nandroid backup”. It will take a short while but it sure is worth it. You’ll have to press the Home button to confirm, just follow the instructions on-screen.

Now, select “Wipe data/Factory reset”. It’s going to erase all your applications and settings, but it shouldn’t touch anything saved on your SD card (such as pictures, music, saves, etc). It’s important to do so, else the phone will not work properly.

After that, select Apply sdcard:update.zip. It will install Galaxo. Right after that, select Restore G.Apps, which will restore the Google Applications on your phone. I might recommend to wipe again at this point, it helped some people gain stability, but it seems pointless to me. Anyway, it only takes a few minutes and you’re not losing anything (you already did a wipe).

You can now reboot and enjoy Galaxo!

**You want to update to from 1.6.3, or Just download the new Galaxo ROM (the link is in the tutorial), rename it to “update.zip”, put it on your phone, boot into recovery and select “Apply sdcard:update.zip”, then don’t forget to restore Google apps, and that’s it!**

If the phone gets stuck on the Android screen, wait for about 10 minutes, and then if it’s still stuck, pull out the battery and boot again. If it still doesn’t work, you can try again, or boot into recovery and try to apply the sdcard:update.zip again and restoring the Google apps without rebooting between, and trying another wipe after that.


Have questions, comments? Post them here!

You want to thank me? Screw me, donate some money to DRAKAZ! He did all the hard stuff!

Related posts:

  1. [Galaxy i7500] simple rooting guide (without Galaxo/Galaxhero roms)
  2. [Galaxy i7500] Howto install/flash Galaxo Rom on the Samsung Galaxy 7500
  3. [Galaxy i7500] HOWTO Flash/update Samsung Galaxy 7500 mit Odin Multi Downloader


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  5. Anonymous says:

    Nach dieser Information hatte ich gesucht, vielen Dank!

  6. whosayzwhat says:

    tx for this great tutorial….. but had to stop after: “Mount your phone, you’re going to be placing stuff on it”
    I did try over and over 5 times but my phone is not appearing anywhere :(
    using windows7

    Tx anyhow

  7. iAndroid says:

    awesome walkthru…made it super easy…thanks a ton…!!

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  9. Shahul says:

    Hi bros can u plz explain clearly coz ive got my i7500 Galaxy and its running 1.6 Donut plz tell what should i do coz i cant understand coz im using windows Xp Sp2 so some steps are not possible .So plz give me more detailed briefly about how can I install / upgrade to 2.1 eclair or 2.2 froyo . Plz bro Im in so complicated situation.

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  12. sam says:

    i boot into recovery and there is only 1 option ..!!  plus i dont have recovery (4.XX) i have 0.1

  13. sam says:

    now i have done it .. so how to overclock?

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