Please help
Hi-
I just got a brand new Sony Xperia Z2 Tablet 32GB wifi, SGP512, USA, Stock.
Android Version: 4.4.4
Build number: 23.0.1.A.4.30
Kernel version: 3.4.0-perf-ged66f4f
It's my wife's really but I just can't resist. It's completely virgin. Factory fresh.
I hope this is a good place to chime in...I haven’t been here in a while so I'm a little rusty and there are many threads on this topic.
I just read dozens of different threads, hundreds of pages on rooting this thing, and need verification please?
I started here…and let me know if this should be moved.
From kulvertti
http://forum.xda-developers.com/xperia-z2-tablet/general/lollypop-t3057435 :
If you allready are in LolliPop firmware without working recovery you need to downgrade you firmware first to rootable firmware.
1. Download rootable .314 firmware here:
https://mega.co.nz/#!kcxxjaLA!itErjR...yY4GwEzY3xgHZ0 and flash it via Flashtool.
2. Root your device with tool you choose. (Dualrecovery installer option 3, Easy Root Tool, Giefroot or other).
3. Install SuperSu to your device from Play store if your root tool don´t do it.
4. Install Dualrecovery with installer if you haven´t allready.
5. Resume your KitKat nandroid backup with custom recovery.
6. Flash prerooted .690 firmware with custom recovery.
7. Before booting up wipe cache/dalvik cache.
8. Boot your device and you are done.
This is what I got so far:
* I already got all the usb drivers, adb drivers, Sony PC Companion, etc…..installed on my PC and working.
1. I'm not in LolliPop, but I think 4.4.4 is unrootable so I need to downgrade with:
SGP511_17.1.2.A.0.314_Customized NCB (Nordic Combined).ftf
and use Flashtool to flash to Xperia Z2 Tablet?.
-- I'm on Win Vista64, does it matter which flashtool-0.9.18.5-windows.exe I use? both, x86 or 64, seem to work the same for me.
-- Do I use 'Flashmode' in Flashtool? 'Fastboot mode' looks too confusing?
2. Next I root and I have both EasyRootTool v12.4 and TabZ2-lockeddualrecovery2.8.15-RELEASE.installer on my PC ready to go.
-- They both look like they use tr.apk for root but is one preferred over the other?
-- If I use TabZ2-lockeddualrecovery2.8.15-RELEASE.installer option 3 for root, does it also install Dualrecovery?
-- I assume I have 'locked Bootloader'? Does it matter? What does unlocking do? Any advantages/disadvantages either way?
-- Can I just use Flashtool to root or are the others better/easier?
3. Next I install SuperSU and I have UPDATE-SuperSU-v2.46 on my PC ready to go.
4. Next I install Dualrecovery and I have TabZ2-lockeddualrecovery2.8.15-RELEASE.installer on my PC ready to go.
5. Next I resume KitKat nandroid backup with custom recovery.
-- Not sure exactly on this but I think this is something I do from inside Dualrecovery from device?
-- Which recovery is better/easier to do this?
6. Next is to flash prerooted .690 firmware with custom recovery and this is where I need some verification please.
-- For this I made my own prerooted firmware file of Sony version 23.1.A.1.28 using PRFCreator_v0.8:
-- The 3 file packages I used were:
SGP512_23.1.A.1.28_Generic US.ftf
UPDATE-SuperSU-v2.46.zip
TabZ2-lockeddualrecovery2.8.15-RELEASE.flashable.zip
-- I used two different methods to get the .ftf file just to see if I would get the same result.
Method 1: Sony PC Companion_Web.exe and flashtool-0.9.18.5-windows.exe to build the .ftf file.
Method 2: XperiFirm_4.5.3_(by_Igor_Eisberg) and flashtool-0.9.18.5-windows.exe to build the .ftf file.
NOTE: I removed the TA portion of the decrypted files when the .ftf was built.
NOTE: Both methods produced identical .ftf files….as far as I can tell.
-- My settings for PRFCreator_v0.8 when I made the prerooted firmware of Sony version 23.1.A.1.28 were:
All 4 boxes under 'Include' were ticked plus the 'Sign Zip' box was ticked….all 5 boxes ticked.
No Extra Zips were added, only the 3 file packages listed above were included.
-- Based on this information I provided in this step 6, do you see any problems with me flashing
this prerooted 23.1.A.1.28 firmware file? Or what should I do different?
-- Do I flash my prerooted 23.1.A.1.28 firmware from inside dualrecovery?
-- Which recovery is better/easier to do this?
7. Next I wipe cache/dalvik cache before I boot.
-- Does this mean that after I flash my prerooted 23.1.A.1.28 firmware from inside dualrecovery
there is other options to wipe the cache?
-- Which recovery is better/easier to do this?
8. Boot device with fingers crossed.
-- I'll need to make donations and give thanks to plenty of folks.
Sorry for the lengthy read.