Today I rooted my Optus PrePaid Samsung Galaxy Gio and also removed the Optus carrier locking. Quite a simple process – it was easier than I imagined.
First off you’ll require a few things:
- USB Cable originally supplied with the handset
- Java Developer Kit (no, not the runtime)
- Android SDK
- root gb updated.zip
- Samsung Galaxy Gio (wow, really?)
- Samsung Kies
- A smoking hawt fiance (well this isn’t really needed but it helps pass the time)
So we’ll start with rooting. You’ll need “root gb updated.zip”. If this link is broken, I have the file, so just post a comment and I’ll update the link.
- Copy “root gb updated.zip” to your SD card
- Turn off your phone
- Press and hold the home button and the power button
- When recovery mode loads, select” “Add update from SD card” then select “root gb updated.zip” as the update
- Reboot your phone and you now have the SuperUser app installed
Now we’ll remove carrier locking.
- Install the Java Developer Kit
- Install the Android SDK
- Run the Android SDK Manager and install the “Android SDK Platform-tools”
- Open the command prompt with administrator privileges
- Run the command:
cd “\Program Files (x86)\Android\android-sdk\platform-tools” - Connect your Samsung Galaxy Gio to the PC with the USB cable
- Run the ADB shell. This is a command prompt viewable on your PC which is executed on your phone. The command is:
adb shell - Once the ADB shell has loaded you’ll need to step up into rooted mode. Run the command “su”. After executing this, on the Samsung Galaxy Gio the SuperUser app will pop up requesting permission to grant superuser privileges
- Now we can start with the actual unlocking. Run the following commands:
mount –o remount rw /
mkdir /efs
mount –o nosuid,ro,nodev –t vfat /dev/block/stl5 /efs
cat /efs/mits/perso.txt - There will now be an 8 digit number that is not entirely made up of 0’s on your screen. This is your unique unlock code. Write it down.
- Turn off your phone and replace the SIM with a card that is locked out of your phone – ie. a SIM card from a different provider
- Enter in the unlock code you wrote down when requested
- Your phone is now rooted and unlocked
I’ll later blog about custom firmware because the Optus firmware is bloatware.
hi,
I cant root my phone phone modei is GT-S5660V android version 2.3.4 I tried root gb updated.zip and one click no luck. when i entering in to recovery mode the screen shows on down side appling multi-csc-
cant access to /system/csc/opp/system
thax
Have a look at http://forum.xda-developers.com/showpost.php?p=17332208&postcount=1013 which details how to root your model phone.
Hi,
would it be possible to go through the entire process with out having an optus sim in the phone first off? I don’t see the point in buying another sim when i’ve already got one
Yep – just do the whole thing with no SIM inserted until you have extracted the unlock code
Ok so i bought the phone from auspost, and didn’t buy a sim; haven’t turned it on yet – but any tips before i follow the steps? I don’t want to see this thing bricked in the first day of owning the phone. xD
Other than following the guide? Nope
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suresh, please see my blog post from today – http://www.criten.org/2011/11/root-unlock-the-samsung-galaxy-gio-gt-5660v/
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Bloody good guide to unlock, I have just unlocked two samsung galaxy 5 phones for my friend.
rooted my phone with this guide as for the unlock i didnt waste my time with cmd i usedgalaxy ace unlock apk for the code and it worked so i have now rooted and unlocked my gio thanx to this guide and the apk file
hi, THX for sharing, “root gb updated.zip” link is no longer aviable, could you email me yours? Thanx for all this.
Try http://min.us/mbijzNjS5v#1o as an alternative for “root gb updated.zip”
Le lien est mort :/! Pourrai tu poster le fichier stp ? Merci d’avance !
ENGLISH: The link is dead :/! Will you post the file please? Thank you in advance!
Merci – J’ai mis à jour le lien
ENGLISH: Thank you – I’ve updated the link
Hi There, i have a problem with my Gio GT-S5660 when trying to unlock.
Note: i have to renamed the root gb updated.zip file to update.zip file otherwise was giving an error “couldnt find .zip file” i renamed it and was updated.
now you havent mentioned here that when i need to run the “platform-tools”
” tools, by the time should the phone in normal mode or it should be in recovery mode ??
in normal mode if i run the shell command then it gives me an error saying permission denied if i run the first “mount” command.
any help guys !!!
Your phone needs to be booted up normally to run adb shell
Getting an error here, well not an error.
What I’m doing here is;
$ mount -o remount rw/
Usage: mount [-r] [-w] [-o option] [-t type] device directory
$mkdir /efs
mkdir failure for /efs, Read-only file system