There is a great news for Sony Xperia Z Ultra users. The company has released a new Cyanogen firmware based on Android 4.4.4 OS. The firmware CM11 M9 is based on the AOSP Android 4.4.4 KitKat OS. You will get performance, customization options, features and performance improvement within your device.
Before you start the update of Sony Xperia Z Ultra, make sure that you follow these prerequisites:
It is to be noted that the warranty of your phone will become void once the update is implemented.
• Make sure that the Sony Xperia Z Ultra device has got the root rights before the installation process. starts.
• The new firmware toned to be flashed only on the Togari version and don’t install or follow the instruction for any other device.
• To verify the model of your device, Go to Settings> About Phone and check the Model Number.
• Install the USB driver on your PC, it will help to recognize your device on PC.
• Clear the phone’s memory and take the backup of all data by flashing TWRP recovery in the device or CWM Recovery Image.
• Make sure that the device is fully charged. If the device installation process is stopped suddenly, it may lead to damage of your smartphone or loss of data files.
• The guide is specially meant for advanced users. The Android Source team, in any case, shall not be held liable or responsible if any damage is incurred your mobile phone.
How to install the new CyanogenMod Android 4.4.4 KitKat CM11 M9 custom ROM on Xperia Z Ultra device?
- Download the CM11 M9 Custom ROM Android 4.4 KitKat firmware file from this link.
- Now download and install the USB Driver.
- Connect your Sony Xperia device to your systems using the USB Cable.
- Copy and Paste the downloaded Android 4.4.4 KitKat CM11 M9 custom ROM zip file to your sd card on the root folder.
- Make sure that your device has a root access, and an installed custom recovery image, such as CWM or TWRP recovery.
- Switch off your Sony Device and disconnect it from the PC, boot the device to Recovery Mode.
- Press the Volume Up, Power Button and Home together.
- Once the device successfully enters the Recovery Mode, clear your device memory by selecting ’Wipe data/Factory reset’.
- You can use the Volume Keys to navigate, and to select the wanted options using the Power- button.
- Clear up the cache memory by choosing the Wipe Cache Partition
- Next, go to Clockwork Mod Recovery and choose the ‘Advanced’ option, and then on the ‘wipe dalvik cache’.
- Now return to main recovery menu and tap “install zip from SD card”.
- Select “chose zip from SD card” and go to Android zip file in SD card.
- Now press Enter. This will start the flashing process. Follow the same process for installing the Google apps.
- Once the installation process is complete, navigate to ‘+++++Go Back+++++’ and choose reboot system.
- Now, the device is successfully flashed with the new CyanogenMod Android v4.4.4 KitKat CM11 M9 custom ROM.
