How to Update ROMOW EXTREME V6 Custom Rom on Samsung Galaxy S3 GT-I9300 With 15 Toggle Jkey Theme

samsung-galaxy-s3

The development of custom rom for Samsung Galaxy S3 GT-I9300 have not be stopped since the official launch few month ago. With the highly customized rom, the performance of your device are to be enhanced. However, full support from developers are necessary along the way you use the custom rom as minor bug may still exist in any customized rom. ROMOW Extreme V6 is another highly recommended custom rom for the Galaxy S3, it’s based on the ELK4 stock firmware with additional of customization on the system and removal of unwanted pre-installed application.

Features of Romow EXTREME V6

  • Base ELK4 Stock
  • modem DLID
  • Deodexed
  • Zipaligned
  • Root
  • Kernel Siyah 1.7RC3
  • Multi CSC
  • Adding keyboard Android 4.2 AOSP
  • Added Emoji keyboard Android 4.2 AOSP
  • MultiWindows
  • Power menu ‘extended
  • Improved process management
  • Improved battery
  • Samsung removed the Clock application
  • Adding the Clock app Android 4.2 AOSP
  • SystemUI modified
  • Removed only a few applications / widgets Samsung
  • Extreme V6 is powerful and very stable

Benefit of Rooting

By rooting your phone/tablet, you can actually perform better management of your phone. However, many are afraid of rooting since bricking of your devices will still occur if you are not follow the guide exactly. To swap away your fear of rooting, we will listed down the benefits of rooting your Android devices:

1. Full Control of Android
With root access, you can alter any system files (developer level), delete annoying pre-installed stock apps (come with carrier perhaps), change Samsung boot animation (or others brand) and much more. As you can tells, you can actually alter with full access to your phone via root.

2. Backup and Restore Your Android Devices
It is not a unique condition whereby your phone will getting slower and buggy after long period of usage. No matter how well you keep your phone (not installing any stuff which is not possible), it seem like the phone will still getting degraded in performance or error keep popping up. Backup the entire system to an SD card is a must so that you can restore back to the state where no errors are found. Rooting allows you to do so as with Backup App like Titanium Backup or Nandroid Backup.

3. Most Important – Install Custom Rom
The ultimate goal of rooting your Android devices is to flash custom rom. Many has complaint of the bad of stock rom and one of the best solution is to flash highly-customized rom. With the installation of custom rom, you are expecting: better battery, butter-smooth performance (Jelly Bean’s slogan perhaps), and blah blah blah (all good stuff).

Disclaimer

It’s always risky to root your device and be warned that a failure may brick your device. In order to keep your device safe, please read carefully every single line of the tutorial and follows the steps exactly. We are not responsible for any damage to your device.

Compatibility

The tutorial and guide below is only compatible to Samsung Galaxy S3 GT-I9300 model. It will not compatible to other devices.
Check phone model – Goto Settings -> About Device -> Model Number.

Requirements

  1. Windows-based PC
  2. Samsung Galaxy S3 GT-I9300. How to Root and Install ClockWorkMod Recovery for Samsung Galaxy S3 GT-I9300.
  3. Download and install USB drivers on PC. Download Samsung USB Driver for Windows
  4. Enable USB Debugging on your device. How to Enable USB Debugging Mode on Android Device.
  5. Backup your personal data on phone to PC to ensure you keep a copy of your personal data (SMS, MMS, Contacts, Internet Settings, Photos and etc). How to Backup Personal Data On Android Device.
  6. Make sure your phone is charged to 50% to avoid interruption during flashing. How to Check Battery Level On Android Device.

Download

  1. ROMOW EXTREME V6 Custom ROM (ROMOW Extre,e V6 by mowmo.zip, 648.45MB) – Development page
  2. Gallery Camera Keyboard Android 4.2 (Gallery_Camera_Keyboard Android 4.2.zip) (Optional)

Instructions: (From Custom ROM)

  1. Make sure you have follow steps above and enable all the necessary features before start.
  2. Do a Nandroid backup in CWM/TWRP recovery in case you need for restoration. (Optional)
  3. Connect your device to the computer via micro USB cable.
  4. Copy and paste the downloaded ROMOW Extre,e V6 by mowmo.zip and Gallery_Camera_Keyboard Android 4.2.zip (optional) files to your phone internal SD card.
  5. Turn off your phone and disconnect from USB cable.
  6. Press and hold the Power + Volume Up + Home Button to enter CWM/TWRP Recovery.
  7. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade from your previous ROM version. For CWM recovery, use Volume key to navigate in Recovery Mode. For TWRP, use touchscreen to navigate in Recovery Mode
  8. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  9. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  10. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ROMOW Extre,e V6 by mowmo.zip and click Yes to install.
  11. Back to main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the Gallery_Camera_Keyboard Android 4.2.zip (optional) file and click Yes to install.
  12. After the installation completes, go back to recovery’s main menu.
  13. Select reboot system now to reboot the phone.
  14. For first boot up, it normally takes longer time. Please wait patiently.

Instructions: (From Stock ROM)

  1. Root and install CWM/TWRP recovery. How To Root and Install ClockWorkMod Recovery On Samsung Galaxy S3 GT-I9300
  2. Download root checker from Google Play to check your root status.
  3. Press Power + Volume Up + Home Button to enter recovery mode. Check whether CWM/TWRP recovery is successfully installed. Select Reboot system to reboot your device.
  4. Connect your device to the computer via micro USB cable.
  5. Copy and paste the downloaded ROMOW Extre,e V6 by mowmo.zip and Gallery_Camera_Keyboard Android 4.2.zip (optional) files to your phone’s internal SD card.
  6. Turn off your phone and disconnect from USB cable.
  7. Press and hold the Power + Volume Up + Home Button to enter CWM/TWRP Recovery.
  8. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade your previous ROM version. (Use Volume key to navigate in Recovery Mode)
  9. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  10. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  11. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ROMOW Extre,e V6 by mowmo.zip and click Yes to install.
  12. Back to main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the Gallery_Camera_Keyboard Android 4.2.zip (optional) file and click Yes to install.
  13. After the installation completes, go back to recovery’s main menu.
  14. Select reboot system now to reboot the phone.
  15. For first boot up, it normally takes longer time. Please wait patiently.

Take Note:

In case the first boot up take longer than normal or stuck at Samsung logo, press and hold Power button for 5-8 second for the system to reboot. If the problem have not resolved, boot into recovery and wipe cache and reboot again.


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