yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 Q&A, Help & Troubleshooting] swhatevers:
Thanks for that I was going to try Flashtool but didn't. Forgot to mention that my bootloader was already unlocked. I ended up using Easy Root then flashed twrp and doomkernel and successfully installed cm 12.1

I didn't use PRF because I wanted to install CM not a rooted stock ROM.

Thanks anyways :D
[Xperia Z2 Q&A, Help & Troubleshooting] YamyYugi:
Hello, i need root my xperia z2 5.1.1 23.4.A.1.264

i need root to do a TA backup, and all backups, i try kingroot dont work.. who i do a root without lose my waranty? thanks
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Modifying your device in anyway will void the warrenty of your device

But undoing what you did makes it imposible for sony to detect it
[Xperia Z2 Q&A, Help & Troubleshooting] YamyYugi:
Yes but do a downgrade and root to try do a backup Ta Will void my waranty but if I reinstall the stock rom and ta restore next Sony cant detect right? Bcse I want install any New rom from XDA forums bcse my camera sucks alot.
[Xperia Z2 Q&A, Help & Troubleshooting] draexo:
Does the Z2 support HD Voice / VoLTE / Enhanced LTE? The option is not in the menu of the ROM I use and information is conflicting about whether it supports it or not.
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
I dont thinks so.
[Xperia Z2 Q&A, Help & Troubleshooting] draexo:
I've got info that it supports HD voice. Even the Z1 does.

Sent from my D6603
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
i dont know what that is nor have i ever seen it from my time diging through the stock rom, on 4.4.4 i did see VOLTE but idk if it worked.
[Xperia Z2 Q&A, Help & Troubleshooting] draexo:
So I should try 4.4.4

Sent from my D6603
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
If you want but thats upto you.
[Xperia Z2 Q&A, Help & Troubleshooting] darknessmc:
Hi guys

I'm new here in Z2. I came from xperia S. Is there any thing to know other than this info to deal with Z2 like new flashtool or moded system?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
I had a Xperia S before Z2 too

I noticed Z2 wipes internal storage if you wipe data as xperia S has a seperate data and internal storage where as Z2 data and storage are in the same partition

Aside that its the same old deal i believe
[Xperia Z2 Q&A, Help & Troubleshooting] darknessmc:
Thanks. I tried some of your work in my old xperia SL. Maybe I'll start rooting and recovery first with KK then I'll see what to do:)
[Xperia Z2 Q&A, Help & Troubleshooting] rowlers:
I'm currently trying this on my old z2 (now daughters) but flashtool keeps saying drivers aren't installed for this device. I've installed them from the flashtool driver's folder. I'm in win 10 64bit. Any one give me a clue?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
In windows 8 or newer you have to disable driver signature verification

There are plenty of guides out there to do so.
[Xperia Z2 Q&A, Help & Troubleshooting] rowlers:
That was where I was going next... However, my trusty 12yr old XP laptop came to the rescue!

Back up and running. Phew!
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
sounds good, btw there is some windows commandline method to permanently disable driver signature verif in windows 8 or newer and it may be useful to you and others.

(this allows you to install sony xperia drivers where as else it wouldent)

http://www.drivethelife.com/windows...e-enforcement-on-windows-10-8-7-xp-vista.html
[Xperia Z2 Q&A, Help & Troubleshooting] tooplanx:
Can I point people in the direction of my up-to-date, step-by-step, clearly explained guide for rooting and recovery a Z2 on Marshmallow?:

https://xdaforums.com/xperia-z2/help/guide-idiots-guide-to-root-twrp-t3534647

I tried to put all the info you need in one place to save people the hassle of scouring through forums to find solutions to many problems they will encounter otherwise.
[Xperia Z2 Q&A, Help & Troubleshooting] ac_chirul:
my phone still bootloop
[Xperia Z2 Q&A, Help & Troubleshooting] Next-:
Guys I need some help ..

I want to root my Xperia Z2 - but I don't know how ..

I looked at Youtube Videos, most links are not working anymore or you have to downgrade

I have 6.0.1 installed :/
[Xperia Z2 Q&A, Help & Troubleshooting] khoaminion:
I just root my z2 6.0.1 yesterday and success maybe ican help you
[Xperia Z2 Q&A, Help & Troubleshooting] chinedu40:
Unlcoking bootloader

Does unlocking the bootloader wipe data? Eg. apps, apps data and/or internal SD card??
[Xperia Z2 Q&A, Help & Troubleshooting] [w]:
rather than post a new thread, i thought i would ask the question here in case the answers are of value to others.

Today i unlocked bootloader and attempted to flash the CMW recovery on my Z2.

http://xdaforums.com/showthread.php?t=2702001

no matter what i did v04 resulted in booting in a blank screen.

I was able to flash v03.

the link to download v03 says:

Advance Stock Kernel with CWM Recovery v03 (FW:17.1.A.2.69}

after this success, my objective was to flash doom kernel.

i assumed that because the label on the link said .69, that this would move the firmware to .69

after reboot, however, settings showed my firmware to still be 17.1.A.2.55

flashing doom kernel v09 resulted in more fail.

I had to reflash v03 again to get the z2 working once more.

Haldi helpfully responded with

http://xdaforums.com/showpost.php?p=53388340&postcount=406

So my question is to clarify if the steps to flash doom kernel v09 are as follows:

- unlock boot loader

- flash cmw recovery (and root device)

- flash .402 rom

- flash doom kernel v09

if so,

why does the label for the link to v03 say "FW:17.1.A.2.69"?

how do i get stock 402 rom? do i wait for someone to post such a rom compatible with my region here:

http://xdaforums.com/showthread.php?t=2759934 ?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
1. Your kermel does not change your rom lable

2. 402 roms only work with 402 kernels

Try this

http://xdaforums.com/showthread.php?t=2774552

And doomkernel and see the results

A last resort is trying to flash a FTF file to see if there is base brand conflictions n stuff, after thats done then try flashing doomkernel and the above rom

I do not recomend trying this if you have a branded device
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Yes it wipes data and internal, its recomended that you backup all your data
[Xperia Z2 Q&A, Help & Troubleshooting] [w]:
Thanks Envious_Data.

I looked at that rom but feel kind of iffy about it, esp coz OP says he hasn't tested himself haha.

I saw you were helping test it. is x-reality still broken there? how do you find it?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
It works i tested and i made my own personal ver

In the 402 firmware for some reason almost everything has stopped working but with unlocked bootloaders everything works on 55 and 69 firmwares from my testing

I think stuff not working on 402 is an accident because the fw its self is buggy in many ways
[Xperia Z2 Q&A, Help & Troubleshooting] [w]:
good to know. thanks.
[Xperia Z2 Q&A, Help & Troubleshooting] chinedu40:
How to update to future firmwares

So when i have unlocked my bootloader and rooted, how do i update to future firmwares?

Do i just flash a ftf, temporarily losing root, then have to flash a custom kernel and root again? Or is there a simpler way?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
If your bootloader is unlocked yes you have to flash a FTF, you can exclude kernel and data so you can reroot imediatly (via flashtool btw)

I havent tried using Sony Upater Service if you want to try SEUS, it seems Sony PC companion doesnt work
[Xperia Z2 Q&A, Help & Troubleshooting] BanziBaby:
Yeah stamina mode is a bit buggy in 402 firmware, in previous ones I could just tap the quick setting tile to turn it on but on 402 it insists you configure it & tick some of the options.
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
It seems 402 firmware is extremly bugged, kernel wise and system, not realy much with UI aside the few flaws
[Xperia Z2 Q&A, Help & Troubleshooting] ca12bon:
I currently have my Z2 rooted, bootloader unlocked, with custom recovery installed.

- After installing Carbon ROM and then Mondified ROM, the camera is not working. I'm not really sure what I should do here, as I tried opening the Flashtool ("Emma"), but it wouldn't recognize my device.

Q1) Should I try going back to stock ROM, and if so, how do I do it?

Q2) If the answer to Q1 is "no", then what other ROM / kernel combination should I install?

Thanks in advance,

J
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Installing custom roms try wiping cache n dalvik sometimes data

To go back to to stock you can download a stock or stock based flashable ROM and kernel

(stock based being advanced stock kernel, doomkernel, romaur, andro plus, deodexed or anything else that is titled, described or hinted

You can use flashtool (flashtool.net) and flash a FTF to get back to stock
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
I'm buying the unlocked variant from the Sony store here in Canada. Unlockable bootloader, unlocked network.

If I root, does it trip any counters like Samsung devices that would void my warranty? Or can I simply unroot, and send the device in for repairs under warranty with absolutely no evidence of root?

Thanks
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Not at all, nothing is tripped if you root, however unlocking your bootloader wipes your TA and the contents of your TA are unique, we cant recreate them in anyway BUT you can use root to backup your TA and restore later

Breif

Rooting: your fine to remove root n send for repairs

BL unlock: only if they check TA, barely anyone checks TA,

Restoring your TA effectively relocks your bootloader
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
Thanks! I think I will want to keep stock, just root the device so I can use ad blockers, titanium backup, etc.. In other words, leave the bootloader as is and just root it. Much appreciated!
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Recovering From a Brick

no longer used :D
[Xperia Z2 Q&A, Help & Troubleshooting] arahmy:
SD Cards

I've been hearing different opinions on the type of micro sd card needed for 4k recording on the z2. Is there a minimum read/write speed for 4k recording or does it it not really matter? I remember sony's response to the camera overheating being to get a high capacity sd card or record in short busts. Basically I'm looking for the cheapest micro sd that will work without any problems on the z2.
[Xperia Z2 Q&A, Help & Troubleshooting] bdithug:
You could always record to the internal storage, then move the video over to your SD card
[Xperia Z2 Q&A, Help & Troubleshooting] arahmy:
Does recording straight to internal storage work more smoothly than to a micro sd
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
This depends on your micro SD

Better the quality the better your recording goes
[Xperia Z2 Q&A, Help & Troubleshooting] arahmy:
ok so back to my original question. can someone give me an example micro sd card that is the minimum quality or give me the minimum specs needed please. thanks.
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
for 4k recording the minimum is class 10UHC, try looking up in Wikipedia micro sd classes
[Xperia Z2 Q&A, Help & Troubleshooting] arahmy:
ok thanks! just out of curiosity what micro sd do u have?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
I have some crappy 7 year old 2gb micro sd
[Xperia Z2 Q&A, Help & Troubleshooting] jade1966:
S.O.S Segitség!!

Elnézést mindenkitől de NEM beszélek magyarul, IGY: Csak a google fordítót használom.

Feltelepítettem recowery módból a RomAur 3,7 XZ2 Aroma romot ES a Telepítés utan Első indításkor semmire NEM reagál a telefon.Abszolút fekete képernyő bármit is teszek Vele, AZ inditáskor beindul de 1 - 2 mp Mulva le az egész! Segitséget kérnék, nagyon sürgős.Köszönöm.

Mit tehetnék hogy bejöjjön bármi a képernyőn??
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Hogyan lehet visszaállítani a készülék szinte bármilyen tégla követelményei Flashtool FTF választott készülék 2 Gumiszalagok (Komolyan mondom, de csak akkor, ha a készülék nincs válasz) 1. lépés húzza ki a készüléket a semmit nyitva flashtool a számítógépen csatlakoztassa a kábelt A PC nem dugja a kábelt a készülék 2. lépés Tartsa a bekapcsoló gombot és a hangerő fel gombot egyszerre a készülék buzz 3-szor (ez néhány másodpercig tart), ha nem néhány másodpercet vesz igénybe, akkor meg kell, hogy hogy egy gumiszalagot a készüléket tartja a bekapcsoló gombot és a hangerő fel gomb NE hagyjon legalább meg kell balra, várjon türelmesen, hogy a készülék buzz 3-szor 3. lépés Ha a készülék zümmögött 3-szor van szabadon villog a FTF, mint a készülék ki van kapcsolva a 4. lépést, ha nem tudod, hogyan kell flash egy FTF, de ütött amennyire telepítése flashtool, Z2 a járművezetők és letölteni egy FTF a készülék ... akkor ezt a lépést az Ön flashtool ablakban kattintson a villám ikonra a bal felső válassza flashmode keresse meg, ahol letöltötte a FTF (vagy tedd a FTF a / flashtool / firmware mappa) válassza ki a FTF Flashtool kell adni gyors, hogy csatlakoztassa a készüléket tartsa hangerő le, és dugja be A készülék 5. lépés várjon, amíg befejezi a villogást 6. lépés A készülék most vissza, és élvezze ...

én használt Google fordítás, kérlek, bocsáss hiba!
[Xperia Z2 Q&A, Help & Troubleshooting] jade1966:
Nagyon köszönöm a segítséged,sajnos a flashtollal és a 3 zümmögéssel már próbálkoztam.A Flashtool sajnos ledobja a készüléket és ERROR ir ki.
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
telepítenie kell az illesztőprogramokat flashtool segítségével Drivers.exe amely megtalálható a drivers mappában belül a flashtool mappában, meg kell fastboot, flash mód és Z2 eszközmeghajtók
[Xperia Z2 Q&A, Help & Troubleshooting] jade1966:
A Z2 eszközmeghajtó az mi? A Sony PC Companion-ra gondolsz?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Az illesztőprogram Z2 fog működni flashtool és PC-társa. Azt hiszem, akkor a Sony PC-társa, kijavítani a Z2. megtalálható javító eszköz a Támogatási Zóna. mindössze annyit kell tennie, hogy kövesse az utasításokat!
[Xperia Z2 Q&A, Help & Troubleshooting] jade1966:
nagyon köszönöm segítséged!! Sikerült,bejött végre a képernyŐ.hálás vagyok mindenért.
[Xperia Z2 Q&A, Help & Troubleshooting] mathieulh:
Unless stated otherwise, this is an English speaking forum. How would you feel if I started posting in French or Japanese in this thread ? ...
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
[MENTION=777123]mathieulh[/MENTION]

I honnestly wouldent care

If someone has a problem and cant speek english, ill try my damn hardest to help them here

You can throw all of the previous posts in google translate and you can see that the user had bricked their Z2, that is my reason for helping
[Xperia Z2 Q&A, Help & Troubleshooting] nogotaclue:
It's up to the op to translate, not everyone else, look at rule number 4 in the forum rules

Sent from my Xperia Z2 through XDA premium and a carrier pigeon
[Xperia Z2 Q&A, Help & Troubleshooting] gautamr9:
Hi guys..

I've noticed a weird issue and wanted to know if others are facing it too..

During a phone call, if I put it on loudspeaker, the back button in the navbar stops working..

For example, I can press home and open whatsapp, but can not use back button to exit whatsapp. Similarly, the keyboard refuses to pop up..

But as soon as the call ends, everything is back to normal.

Are others facing this or is it only me? Any solutions to this?

Fw : .402

Model : D6502

Service provider : Airtel

Country : India

Rooted with locked boot loader
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Sounds abnormal because i can use the nav bar during calls, it seems other people have had this issue and some have reset their device which for some has fixed their issue
[Xperia Z2 Q&A, Help & Troubleshooting] tyteen4a03:
Hey, I'm noticing problems with CM and wanted to go back to stock for now, but for some reason I can't boot into the recovery anymore. When I use the installer for 148 the phone boots, but it just shows SONY for a split second then goes back to being blank, almost like a bootloop.

Any solutions?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
Do you have access to a bootable rom

If so try backing up all your data and try this

http://xdaforums.com/showthread.php?p=53968631

Or you could put a stock flashable zip on your Z2 (ben ling has a deodex ver) and you can use flashtool to flash a custom kernel with recovery

You can get back to stock n after you do that you can put all your data back
[Xperia Z2 Q&A, Help & Troubleshooting] tyteen4a03:
Exactly what I am doing right now, was just wondering if there is a way to avoid the reset. Thanks :)
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
the way we are going to try to avoid resetting is because you said you couldent access recovery but it seems you can access the rom right?
[Xperia Z2 Q&A, Help & Troubleshooting] tyteen4a03:
Yes; but flashing ftfs would mean a factory reset, right?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
yes and no, its enabled by default but all of your internal storage is totaly wiped
[Xperia Z2 Q&A, Help & Troubleshooting] djgodlike:
I want to root/debrand/update my Z2, i'm on 402 (Vodafone NL branded). There is no branded update to 314 in Sony PC Companion yet...

Can I flash/update to 314 with root and a locked bootloader?

Is 314's kernel the same as 402?

Which steps to take first in order to get a decent backup and no brick?

I'm a bit unsure where to start, what to backup and which backup tool/recovery to start with.

Correct me if I'm wrong..

0. Backup with Sony PC Companion?

1. Root

2. Backup TA partition/DRM keys (just in case?)

3. Flash Dual recovery

4. Backup Stock Rom from recovery (which recovery tool to use best?)

5. Flash 314 unbranded stock or other modded (eXistinZ Ultimate) rom? (without flashing kernel or I will endup with a brick?)

6. Install Xposed?

7. Install Gravitybox?

8. Install mods

Or

1. Flash Dual Recovery

2. Backup Stock Rom from recovery

3. Backup TA partition/DRM keys

4. Root
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
but anyway, for debranding or updating to a new firmware you have to either use sony PC companion to update or Use flashtool (uncheck data to save ur data btw) (same goes with debranding aka flashing a unbranded ftf)

info list

1. you can flash a unbranded ftf to your device on locked bootloader

2. flashing a stock kernel through recovery is slightly risky, try flashing a ftf via flasthool instead

3. copy all your files to your PC from your Z2

4. you can use sony pc companion to backup, i found it kinda klunky to use

5. you can use your recovery to backup to your internal storage

6. 314 kernel is not compatible with 402 kernel or rom

7.always avoid flashing kernels on locked bootloaders, ONLY flash FTFs

if you wnt to update/debrand/downgrade try downloading a ftf file and using flashtool

flashtool can be used on locked bootloader

try folowing install instructions for roms, they are usualy the best ways to go
[Xperia Z2 Q&A, Help & Troubleshooting] djgodlike:
Thanks for your quick reply and tips!

Last questions, i think :)

So i assume i can safely flash an FTF file with Flashtool (included the new

kernel.sin

) on a locked bootloader?

Can i use [Z2][TWRP][PhilZ Touch][CWM] XZDualRecovery to make a Nandroid Backup

before

rooting my own stock branded rom, or does it not matter?

:good:
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
locked bootloader just means you CANT run a modded kernel

it must be stock unmodifed, this includes advanced stock and or custom recoveries which only work on unlocked bootloaders

recovery for locked bootloaders is quite self explanitory, im quite sure nandroid backups is safe, ive done restores and backups on locked bootloader before
[Xperia Z2 Q&A, Help & Troubleshooting] djgodlike:
Assume you mean: CAN'T run a modded kernel ;)

Thanks for your answers, you helped me out! Keep up the good work!
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
whoa bad typo

never even think of trying to run a custom kernel on a locked bootloader

it will brick your Z2, which is recoverable but anoying both to happen and fix
[Xperia Z2 Q&A, Help & Troubleshooting] rak21:
Unknown IMEI, no signal reception

I have flashed PA and CM official on my Xperia Z2(D6502), every thing seems to work fine except for zero signal reception. I found out that the underlying cause is that some how when i flash custom rom I lose my IMEI.

Is there anything else that i need to do inorder to get I to work as my phone model is not D6503? If so would you please tell me what it is?

Thanks in advance:good:
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
it may be something to do with base brand

try flashing different base brands via flashtool from a FTF ,excluding some other things

if it still doesnt work you will need D6502 support as missmach base brands are supported by alot of roms
[Xperia Z2 Q&A, Help & Troubleshooting] unease:
Refer http://xdaforums.com/showpost.php?p=54082807&postcount=22

Sent from Sony Xperia Z2 using XDA
[Xperia Z2 Q&A, Help & Troubleshooting] Turbojugend:
Sorry if this is a dumb question, but if I get this from Bell, is there a possibility that the boot loader will be able to be unlocked at some point?
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
if it says bootloader not unlockable then you can not unlock your bootloader ever
[Xperia Z2 Q&A, Help & Troubleshooting] blyndfyre:
Are you getting form Bell and signing up for a new or renewal contract? If you can avoid that just buy it from the Sony store like I did, it is bootloader unlock-able and on Xperia support they will provide the unlock code and give instructions how to do it.

Better yet you can get a reduced monthly rate from Bell being non-contract, and the money you'll save over two years will pay for your new Z2 and then some.
[Xperia Z2 Q&A, Help & Troubleshooting] Turbojugend:
Even if the Sony unlock bootloader sight accepts my IMEI and provides the unlock code to use with fastboot?
[Xperia Z2 Q&A, Help & Troubleshooting] blyndfyre:
It still won't unlock.

EDIT 1: From Sony Developer Site:

Please note! It will only be possible to unlock the boot loader for certain releases. You can check if it is possible to unlock the boot loader of your device in the service menu by following the steps below:

In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.

Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
[Xperia Z2 Q&A, Help & Troubleshooting] Turbojugend:
Ok, thanks for the info.
[Xperia Z2 Q&A, Help & Troubleshooting] blyndfyre:
Two quick questions if anyone can answer please:

1) I'm planning to root, install NUT dual recovery and flash Existenz ROM; My bootloader is unlocked and will remain as such; do I need to backup TA/DRM or only ever worry about that should I choose to unlock bootloader down the road?

2) Do I require root to install NUT dual recovery? I read the instructions and didn't find anything pointing to root required.
[Xperia Z2 Q&A, Help & Troubleshooting] Envious_Data:
your bootloader will never relock unless you use flashtool or emma to relock it your self

your bootloader is already unlocked? this means your TA is already wiped so drm keys arent existant any more

you do require root to install NUT's dual recovery
[Xperia Z2 Q&A, Help & Troubleshooting] blyndfyre:
My bootloader is locked and has never been unlocked. So installing dualrecovery and a stock based ROM I do not have to worry about backing up TA/DRM right? SHould/can I back them up anyways?

Thanks I won't bother rooting, I'll just install recovery, and flash ExistenZ stock based rom via TWRP. I'll have root after that as it's included in Existenz.