The CyanogenMode 10.1.2 stable firmware is now available from the CyanogenMod team. This step by step tutorial will teach you how to update Verizon Samsung Galaxy S3 device with this latest CM 10.1.2 stable ROM.
For applying this instruction manual, you need to be an advanced Android user because it is a manually update. If something goes wrong you can easily brick or damage your device. This new update comes with numerous new tweaks and new security patches.
Pre-requisites:
- These informations and instructions listed here work only with the Samsung Galaxy S3 model number I535.
- The Samsung Galaxy S43 device needs to have an unlocked bootloader.
- The SGS3 device needs to be rooted and have to be installed and running a custom recovery image such as CWM or TWRP recovery.
- Take the backup your actual running ROM using the custom Recovery Mode, and get a full NANDROID backup for your actual ROM.
- This NANDROID backup will represent a restore point for S3 device in case something goes wrong during or after flashing tutorial.
- This guide will ask you to ‘wipe data/ factory reset’ of your smartphone.
- That means all of your data stored in the internal device’s memory will be erased.
- All data stored on the smartphone’s internal SD card will not be erased / wiped out.
- Now, in terms of getting a full backup for your important data, you have to take the back up your SMS, Call Logs History, APN and internet Settings, sync your contacts with your Gmail account in order to save your contacts,
- Also, take the backup all your documents, images, videos, or any other important files using Google Play Store apps developed for these kinds of activities or backup them on the cloud.
- Now, from the Developer Option menu, enable USB debugging option.
- The Galaxy S3 should have above 85 per cent of battery charge.
- Read entire step and make sure you won’t skip any of them listed here.
Note: In case the S3 device is already updated and running a previous CM 10.1 build firmware, you might not be forced to apply a “factory reset” task. Just in case the S3 device enters into a boot loop at the first boot, you have to enter into Recovery Mode again and repeat the entire step by step guide once again.
How to Update Verizon Samsung Galaxy S3 with CM 10.1.2 Stable ROM based on Android 4.2.2 JB
- First, Download the CM 10.1.2 zip file from HERE, save it in your PC and make sure you don’t unzip its content.
- Second, download suitable Gapps for CM 10.1.x from HERE and save it on your computer and make sure you don’t extract its content.
- Now, connect your Verizon Samsung Galaxy S3 device to your PC using the USB cable.
- Move (copy/paste) both downloaded files on the smartphone’s internal SD card.
- Next, after the files are copied successfully disconnect the S3 smartphone from the PC.
- Turn off the SG3 device.
- Boot the Android device into CWM Recovery Mode. In this tutorial, I’ve used the ClockworkMod Recovery tool, but you can use TWRP tool also,
- From Recovery Mode menu select ‘backup and restore’ option for creating a full Nandroid backup for your actual ROM.
- Now, from Recovery Mode menu select ‘wipe data/ factory reset’ and confirm this task.
- Next, select ‘install zip from sdcard’, and ‘choose zip from sdcard’.
- Browse and load the copied CM 10.1.2 zip file and confirm its installation process.
- Now wait until the CM 10.1.2 stable ROM is successfully installed, return to the previous screen on Recovery Mode menu and from there select again ‘choose zip from sdcard’. Browse for this time the copied Gapps zip and flash it too.
- After both copied archive files have been successfully installed on the SGS3 smartphone, return to the main Recovery Mode menu.
- From the main Recovery Mode menu select ‘reboot system now’.
- Now, the Verizon Galaxy S3 device will boot into normal mode, this first boot process can take a few minutes but not longer than 5 minutes to complete.
- Join your Google Account details and take control of your device.
For any other questions, please use our comment section.
Note: If you don’t like this new CM stable build, you can easily restore your previous ROM using the NANDROID backup file which you created above.