Update Galaxy S Blaze 4G SGH-T769 to Android 4.1.2 Jelly Bean via CM10

Galaxy S Blaze 4G T769 (T-Mobile) can now be updated to Android 4.1.2 Jelly Bean but using a custom firmware, CM10. CyanogenMod team recently rolled out Android 4.1.2 Jelly Bean based custom ROM CM10.

Good news is, this highly customized and feature rich CM10 custom ROM now available for Galaxy S Blaze 4G SGH-T769. The best thing about CM10 ROM is, by flashing or installing CM10 ROM on your Android device you will enjoy a customized experience of Android 4.1.2 Jelly Bean even though your device yet to receive official Android 4.1.2 Jelly Bean and probably running on Android 4.0.4 ICS or Android 2.3.6 Gingerbread.

That mean, by installing CM10 ROM on your Galaxy S Blaze 4G T769 you can enjoy Android 4.1.2 Jelly Bean features along with various customization on it.

 CM10 not only offer a bloatware free, fast user experience but the included theme engine allow you to give an unique look.

 If you wish to try out this fantastic and attractive custom ROM CM10 then read through this page to know the step-by-step procedure of installing CM10 custom ROM on your Galaxy S Blaze 4G T769.
 
Before flashing this ROM you should know that it’s a custom firmware and still going through development phase.

 That’s why, it’s very likely that it may comes with some bugs and issues that may look annoying to you. However, we all know most developer of ROMs are usually proactive and we believe all known issues will be fixed along with the development.

Pre Requisites:

As there is always some risk involve while you install anything other than what you have presently. It’s always recommended to follow our pre-requisites to stay safe.

1. Backup your important data such as SMS, Call Log, Contacts, APN and MMS settings. You can follow our Android backup guide for this. Also, it’s good idea to backup your internal memory content to external SD card, specially when during following instruction you have to perform some type of wiping task.
2. If your device turn off during the installation process unless explicitly mentioned on this tutorial then it may experience a hard brick. That’s why always check battery percentage before following this tutorial. Usually, the smartphone should have 60% or more power when you flash a custom ROM or firmware and it will be fine on 30% or more if you going to root it. Learn How to Check Battery Percentage in Android Phones.
3. You should make sure, you have installed proper USB driver for Galaxy S Blaze 4G T769. Visit our USB Driver Download page. If you can access your mobile content in your PC when both are connected the your already have it.
4. USB Debugging mode should be turned of if it’s disabled otherwise you can’t transfer file using USB cable. Learn: How to Enable/Disable USB Transfer on Android Devices.
5. Another thing you should note that nearly all our tutorial is for carrier unlocked and bootloader unlocked devices. You shouldn’t try to install it on a locked device unless explicitly mentioned.

If you already read and followed everything that we mentioned above then you are all set to go the next step of this tutorial which ultimately help you to flash Android 4.1.2 Jelly Bean based CM10 ROM for Galaxy S Blaze 4G T769.

Next Step

Installation Instruction of Android 4.1.2 Jelly Bean Based CM10 ROM on Galaxy S Blaze 4G T769

Step 1: First of all download CM10 ROM for Galaxy S Blaze 4G T769 [Filename: cm-10-20130310-NIGHTLY-t769.zip] and Google Apps [Filename: gapps-jb-20121011-signed.zip]

Step 2: Now, connect your Galaxy S Blaze 4G T769 to PC using USB cable and then mount your storage first.

Step 3: Once you manage access f your phone SD card content from your computer, copy downloaded zip files to the SD card of your phone. Important: Don’t extract any file.

Step 4: Once you finish file transfer procedure, disconnect USB and then turn off your phone.

Step 5: Boot into recovery mode. To do so, press and hold Volume Up + Volume Down + Power button together and continue to hold all three until the screen flashes, then release Power button only and you should be on custom recovery. [you can then use volume buttons to scroll between recovery options and Power button to select as option]. You can also try this: Recovery Mode without Key Combination.

Step 6: As we mentioned earlier, it’s important to perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back. To perform a Nandroid backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup process done.

Step 7: It’s time to perform some wiping task to eliminate clash between new ROM and previous ROM. To do so, first select wipe data/factory reset, then select Yes on next screen to confirm your action. Wait few minutes till the data wiping process done. Now come back to CWM recovery main menu. Select wipe cache partition and after wiping cache partition process completed, select Wipe Dalvik Cache under advance option to perform Dalvik cache wiping. When all done, it’s safe to move into next step.

Step 8: Select install zip from sdcard, then select choose zip from sdcard. Now, locate the cm-10-20130310-NIGHTLY-t769.zip file that you copied earlier in Step 3 and select it by pressing Power button. Confirm installation on next screen and soon the ROM installation procedure start.

Step 9: Once the ROM installation process end, repeat the step 8 but choose gapps-jb-20121011-signed.zip instead of ROM zip to install the Google apps package.

Step 10: When all done, you should go back to the main recovery menu and select reboot system now to reboot the smartphone. The phone will then boot into this new ROM, however you should note the first boot usually take time usually about 5 minutes.

Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.
Congrats! Android 4.1.2 Jelly Bean based custom firmware CM10 is now installed and running on your Galaxy S Blaze 4G T769. Go to Settings –> About phone to verify this update. Share your update experience with us below in comment.