Upgrade Firmware

Install latest version of android lollipop on your Sony xperia Z ultra Togari with the help of resurrection remix custom rom.This is a huge phablet from Sony sporting a 6.4 inch Triluminos display which is yet to receive is official 5.1 update.

If you cant wait for official update but want to taste latest version of android then you have to for custom roms.Some times these firmwares offer excellent performance and battery life when compared to stock firmware itself.

Though  xperia z ultra has snapdragon 800 processor which is fast enough to run any application thrown on it.But by installing custom roms you will be unleashing beast and can improve its performance a lot.If you don't know its device specific codename is "Togari".
Prerequisites:

• Root:You must have root access on your Sony Xperia z ultra.
• Battery: Charge your Xperia z ultra to at least 90% so that you wont encounter any battery related problems while flashing this rom.
• Backup Efs partitions: Backup all your efs partition of your sony xperia Z ultra 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 resurrection remix rom on Sony Xperia z ultra will 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.
• Custom recovery: You need a custom recovery(Twrp or cwm) installed on your Xperia z ultra.Without it you can not flash roms at all.
• You must have a unlocked bootloader.
• Downloads: Resurrection remix rom for xperia z ultra togari by OmarEinea and google apps and transfer them to internal storage.

Resurrection remix rom xperia z ultra togari:

About resurrection remix rom:
This Resurrection remix  which your are about to install  on xperia Z ultra is based on android 5.1.1 lollipop and which is in turn based on cyanogenmod,slim,omni and original remix roms.So you can all the best features of other roms are included in this too along with performance and a decent battery life.
This is official remix firmware which means you will have less bugs and frequent updates.This is compiled by a xda senior member "Omareinea",a big thanks to him for bringing this amazing rom for xperia z ultra togari.
Features of this rom:

• Navigation bar tweaks: You can enable disable or navigation bar and also you can adjust the size of navigation bar.Navigation ring included toggles to in case of quick access just swipe from bottom of screen and you can access apps which you have set.
• Gesture anywhere: This basically lets to open any app at any time(while using other apps) with just a gesture.You have to set the gestures and use them.Though you get any floating  type apps so that they can be used over other apps as multitasking its still a nice feature to have.
  
• App circle Bar:Swiping from the left or right edges of the screen an app bar pops up and you can choose what app you want to launch.This is great way of multitasking.
  
  
• Status bar tweaks: Status bar has lot of tweaks which include a brightness slider.Slide in status bar to adjust brightness of the screen.Various tweaks are available to carrier label too like color and switch.Quick and smart pull down are also present.Battery icon too has tweaks.
• Network speed: On going network speed is displayed on status bar.Both upload and download speed are displayed and you can adjust time interval.
  
• Lock screen mods: This includes placing of 5 shortcuts on lock screen and also set targets for the slider.
• Recent panel mods: Stock recent panel do not have an option to clear all the apps at once.In this rom you a button to clear apps and can even set the position of the button.
• Theme enigne: Theme engine is from the cyanogenmod custom rom which basically changes the look user interface from lock screen  to ring tones all the way up to boot animations.The speciality of the theme engine is the ability to choose individual elements of every theme you have installed.So you like the ring tones and wallpapers of one theme and icons of other theme then you can have them at a time.Just open the theme chooser and you will understand how to do it.
  

These are some of the features of the resurrection remix rom and you can explore more features by flashing this custom firmware on your Sony xperia Z ultra togari.