MROM 2.7 latestly released the Android Nougat for Xperia Z5. This ROM is a stable one. It surely contains all characteristics from the official Nougat Android. In this tutorial you can update Xperia Z5 Premium to 7.1.2 MROM 2.2 Nougat custom firmware with the help of this tutorial. It will be a good idea if the device is rooted and has custom recovery installed. As it’s not an official firmware update of Sony, custom recovery is helpful in installing 7.1.2 based MROM 2.2 zip and the Google Applications.
The tutorial will provide all required steps for installing this ROM update with TWRP Recovery. Here are the tips below for a safe ROM update. Make sure you have a complete backup of your entire data and as you need to wipe all of it. So lets get started.
Prerequisite update Xperia Z5 Premium:
1- Make sure you fully backup your data on your. As this update will wipe all your data from your device.
2- Download Sony USB Drivers.
3- Make sure you device has a custom recovery installed.
4- Your device’s bootloader has to be unlocked.
5- Dalvik Cache wipe is helpful for performing from the recovery mode.
6- You also have to have ADB and Fastboot downloaded on your personal computer.
You may also read: Update Sony Xperia Z2 with Android 8.0.1 Oreo CarbonRom Custom ROM
How to update Xperia Z5 Premium with Android 7.1.1 MROM 2.7 Nougat Custom Firmware:
Step 2- Extract zipped ROM file titled boot.img and save it separate on your personal computer.
Step 3- Connect your device with your personal computer using a USB cable.
Step 4- Copy paste both the files you downloaded in first step onto your device’s SD card and not in any of your device’s folder.
Step 5- Copy the file you extracted in 2nd step titled boot.img and past it into directory of android-sdk-windows\platform-tools.
Step 6-Turn your mobile off.
Step 7- Next press and hold onto the Volume up button for enabling Bootloader mode which will turn your phone screen blue when enabled.
Step 8- Locate the directory of android-sdk-windows\platform-tools in your desktop and press Shift + Right-click > Open Command Prompt in which you should type ‘fastboot flash boot boot.img’ and press Enter.
Step 9- Next type this command and press Enter again. ‘fastboot reboot’.
Step 10- Lastly you should long press the Volume up/down key until the phone’s screen turns a color other than blue for entering into Recovery mode.
Step 11: Once in the Recovery mode, tap “wipe” button to erase all data from your device, then go down and tap “swipe to the factory reset” option.
Step 12: To flash the ROM, you have to head back to the main menu, tap on install option and then search for the ROM zip file that you have copied to your phone’s memory in step 2. Select it, tap on the confirmation button to proceed on with the installation process.
Step 13: Tap on “reboot system now” button to reboot your device.
That’s about it. You have downloaded Android 7.1.1 MROM 2.7 Nougat Custom Firmware onto your Xperia Z5 Premium device.
You may also read: Update Sony Xperia Z2 with Android 8.0.0 Oreo LineageOS Custom ROM