Install Official CM 10.1.2 Stable ROM build based on Android 4.2.2 Jelly Bean for T-Mobile Samsung Galaxy Note

Flash CM 10.2 Stable Android 4.3 for Samsung Galaxy S2

CyanogenMod team finished the work on the CM 10.1.2 Stable build and has released the custom ROM now for the T-Mobile Samsung Galaxy Note phone. Use the instructions that I have listed in this post in order to learn how to successfully update your phablet with the latest stable version of CM 10.1.2. Use this tutorial only if you’re an advanced Android user who wants to test one of the best custom ROMs currently available for their phones.

If you want to successfully install the new CyanogenMod 10.1.2 for your device, then you will first need to take a look at the preparation guide below:

  • Use this post with the T-Mobile variant of the Samsung Galaxy Note device.
  • Do not attempt to flash the files you find here on any other Android device, as that will brick it.
  • Your TMO Galaxy Note should be rooted and it should feature a custom Recovery image such as CWM or TWRP. Also, it should be factory unlocked.
  • The tutorial guide will ask you to ‘factory reset’ the phone, which is why you should know that all installed apps data, SMS and other similar data stored on the system partition will be wiped.
  • The contents stored on your device’s internal and external SD card won’t be affected by this installation and you won’t lose any data.
  • If you want to backup installed apps data, then you should use the Titanium Backup app.
  • In order to backup SMS, Call Logs info and APN Internet Settings use the following apps for Android: SMS backup & restore | Call Logs backup & restore | APN Settings Backup & Restore. Root access is needed for some of these apps.
  • If you want to backup your Contacts info with your default Gmail account, use the guide here. You will learn how to successfully backup all saved phone numbers and other similar data with your Gmail profile, a task that will allow you to restore such data much more easier every time you flash a custom ROM.
  • Enable USB Debugging from the Developer Options menu.
  • Make sure that your device has enough power left in its battery before it switches off. If the phone powers off in the middle of the updating process, you will need to repeat the entire tutorial once again.
  • Read all the info and don’t skip any instructions that I’ve listed.
  • Note that we cannot be held responsible in case your brick your Galaxy Note T-Mobile, nor in case you lose any important data in the process.
  • Use this post only if you’re an advanced Android user and you know what you’re doing.
  • If you cannot complete the update, then you should ask for more help in comments.

Now that you’ve gone all over the instructions listed above, then you can continue to the next part of this post. Learn how to update your device with this official release by CyanogenMod team without bricking your device.

Make sure to apply all steps and to extensively test all the features that have been pushed out with the new ROM.

How to flash CM 10.1.2 Jelly Bean 4.2.2 Stable ROM build for T-Mobile Galaxy Note:

  1.  Download CM 10.1.2 Stable ROM from here.
    > save the zip on your computer without extracting its contents.
  2. Download Gapps for CM 10.1.x ROMs from here.
    > save it on your computer without extracting its contents.
  3. Connect the phablet to your PC and then copy both zip files to your device’s internal SDcard.
  4. Disconnect the Galaxy Note from computer when the files are copied successfully. Make sure that you remember where you’ve place them.
  5. Power off your device now.
  6. Boot the phone into Custom Recovery Mode now.
  7. When you’re at the main Recovery menu you should create a NANDROID backup of the ROM that is currently installed on your Galaxy Note T-Mobile:
    > for CWM Recovery: select ‘backup and restore’ and then create the backup file.
    > for TWRP Recovery: press Backup, select the system parts you wish to backup, then confirm the process.
  8. Next, apply ‘factory reset':
    > CWM Recovery: select ‘wipe data/ factory reset’, then confirm.
    > TWRP Recovery: press Wipe, then Factory Reset. Confirm.
  9. Now you can install the new CyanogenMod 10.1.2 Stable ROM:
    > CWM Recovery: select ‘install zip from sdcard’, then ‘choose zip from sdcard’. Find the CM 10.1.2 Stable zip and confirm that you wish to flash it.
    > TWRP Recovery: press the Install button, then browse the internal SDcard for the CM 10.1.2 Stable zip file. Confirm the installation by sliding the blue button listed at the bottom of the screen.
  10. After the ROM is installed, repeat the same actions as in step 9 to install the Gapps zip too.
  11. When both files are successfully installed, return to the main Custom Recovery screen.
  12. Reboot your smartphone now into normal mode.
  13. The first boot process of CM 10.1.2 ROM will take several minutes to load all files. When you see the home screen, enter your Google Account details and take control over your device’s new ROM.

These were all the steps that you had to take in order to successfully update your smartphone. If you cannot complete the update, then you should ask for more help in comments. Also, you can try to repeat the entire tutorial once again as usually these type of ROMs might not always install at your first attempt.

In case you don’t like how this new CM 10.1.2 Stable ROM build works with your smartphone, then you should use the NANDROID backup file created in step 7. For any other questions, use the comments field below. We will try to come up with a solution for your problems.

  • BennyBlancoBx

    when I’m installing CyanogenMod 10.1.2 Stable ROM on my tmobile samsung galaxy sgh-t879 it give me and error can you help me please

  • BennyBlancoBx

    this is what it say after installing CyanogenMod 10.1.2 Stable ROM E:failed to verify whole-file signature
    E:signature verification failed

    Please some one help me.