Upgrade Firmware

Its been a while since Sony has  released a new android upgrade for Xperia z2 after the lollipop update.You might have receive some stability updates which of course might have improved device performance but surely wouldn't changed any user experience.Though you might have already installed custom roms on your xperia z2 for better user experience.

This snapdragon 801 processor handset is a beast when it comes to performance.But as you know without any upgrades to the software it you mayn't achieve what this device can do with that power. Even though Sony have plans to upgrade this device to android marshmallow,they didn't announce any specific release dates.

If you are obsessed with android updates and could hold any longer to taste android marshmallow on your xperia z2 then its time for you to try out the new aosp based custom rom.If you don't know to install this custom rom your smartphone then don't worry at all am here to help you out.But if its your first time to this kind of stuff then you let me introduce some precaution before going further.This is a risky process ,I and developer wont take any responsibility for any kind of damages that happen to your device if installation goes wrong and you have to proceed at your own risk.

Follow these steps before going further:

• Root:You must have root access on your Sony Xperia Z2 sirius.Though it is not required but to make efs backup which is important we need it.
• Battery: Charge your Xperia Z2 sirius to at least 90% so that you wont encounter any battery related problems while flashing this rom.
• Enable usb debugging on your xperia z2 by going into developer settings.
• Backup Efs partitions: Backup all your efs partition of your sony xperia Z2 sirius on current Rom or firmware.Just in case if you loose signal you can just restore it back.
• Backup:Backup all your data which includes contacts,apps,photos videos etc everything to computer or any cloud networks as flashing android marshmallow based Aosp rom on Sony Xperia Z2 sirius will wipe all your data.
• Lock Gps:Lock your gps position on your current rom.If you use this a lot then you have to lock it so that it could work even after flashing other roms.Its easy to lock gps .Turn on gps in settings and find your current location in google maps and now now have locked on to gps.
• You must have a unlocked bootloader.
• Downloads: Android marshmallow based aosp rom for xperia Z2 sirius(Mega link for system.img and for boot.img) on your computer and also you need to download fastboot driver on your computer without which you cant flash at all.

Android marshmallow based custom rom for Xperia z2 sirius:

• System ui tuner: This is new feature that let you tweak ui a bit but has been hidden just like developer option.If you want to add it to setting app,swipe down the notification panel and on top you will notice a gear icon.Press and hold it and you will notice that it starts spinning.Just leave it once you notice the vigorous spin and you will see a toast message "system ui tuner" added to settings.
• There are ton of brand new wallpapers.
• Google launcher now has vertical scrolling instead of horizontal.
• Multi window: Google finally introduced multi window concept in tablet version of os.You can run two apps in a single window.Activating multi window is also too easy.When you open recents you will notice there is another option beside the closing button on cards.Press on it and activate multi window.But this multi window is not configurable which means adjust width of apps that are running.
• Phone short cut on lock screen is replaced with google now.
• Search bar in settings menu.
• New volume panel: You can now adjust volume of media, call and notification from single window .This feature is absent in previous versions of android though present in most of the oem provided firmwares.
• Auto rotation on home screen is also added which you can find in launcher settings.
• Now on tap: If you use google now frequently this feature might help you a lot.Usually when you press and hold on home button it will take you to google now.If you enable this feature when you try to access google now on any app it load some related suggestions along with some google now card.
• Screen shot notification will also have delete button along with share option.
• Memory option: This is available in settings .It gives you memory usage on your device from last "3hrs or 6 hrs or 1 day".
• App permission manger is the major thing in android m.This lets you to block certain permission so that the app cannot access them.like if you don't want facebook to access your bluetooth you can now do it with out rooting your device,