yashsingh1/xdaforums huggingface dataset:
[Xperia Z1 General] f_u_006:
If someone wants root on locked bootloader, They can downgrade root and then flash the prerooted ROM..

If your simlocked or using carrier's cellphone then download the rootable firmware (downgrade) on the internet and install the locked-bootloader recovery.

Now download the latest FTF (Your own carrier) and extract the FTF (To make it flashable) using the easiest guide at: xdaforums.com/showthread.php?t=1849867

later you could use kitchen to preroot your rom and flash it using recovery.

(WARNING: I AM NOT RESPONSIBLE FOR BRICKED DEVICE OR WWIII, DO IT AT YOUR OWN RISK)

By the way, never ever purchase any carrier locked is device... OR you MAY suffer##
[Xperia Z1 General] xtoad:
Forgive the ignorance, my experience with Samsungs seemed much easier...

Ugh... What a pain for 'simple' root... :p

When downgrading, I do have to flash a lower firmware from my OWN carrier right? Also, despite not caring/wanting custom recovery, I still need that to flash dual recovery to be able to install rooted fw from recovery, correct?

As an aside, why does anyone want or need 'dual' recovery? Not trying to be a smartass, just wondering why more than one is necessary.

Thanks for the help, btw. :)

edit: what is kitchen?
[Xperia Z1 General] gregbradley:
no, any firmware will do

no need, just install the dual recovery using the installation instructions from the dual recovery thread.

people like different recoveries, dual recovery provides choice

If you do not know what android kitchen is then Google it

Dsixdas kitchen
[Xperia Z1 General] f_u_006:
Because sometimes some recovery my fail to mount or work, so installing dual recovery won't cause Alien Invasion.

It's harder to root because its usual that manufacturers don't like there firmware or features to be hacked or misused.

You may know that we access there IP and very top secret things while we use various features in our phone.

And..... if you still got some question/S, then you could ask me bro!

I like helping people, especially noob peoples because once before i suffered noobness and i didn't even understood the meaning of simple geeky language or words.....(ROOT, FLASH, RECOVERY... ETC)
[Xperia Z1 General] xtoad:
Thanks, found it! just googling 'kitchen xperia root' was not enough...

Should I still make a backup of TA even if I'm not messing around with unlocking the boot loader (because I can't, it's not unlockable...)?

One last one: can I root .257 fw or does it need to be 534? And no concerns for losing IMEI or baseband when flashing a lower fw for rooting? Or, do I understand that when downgrading, I may lose IMEI, but will get it back when I flash the later rooted fw from [NUT] for my required model (C6906)

Again, Thanks! (Also for the patience) :D

---------- Post added at 01:36 PM ---------- Previous post was at 01:30 PM ----------

Appreciate it!

when you say: "Now download the latest FTF (Your own carrier) and extract the FTF (To make it flashable) using the easiest guide at: xdaforums.com/showthread.php?t=1849867 ", is this a way for me to create my own FTF with root for my own FW for the future? So that I need only install dual recovery and then install my newly created FTF?
[Xperia Z1 General] f_u_006:
Lol! You well never lose your IMEI unless you flash a really damage or bad downloaded firmware.

Yes you can create flashable zips from ftfs and you need recovery to flash it.
[Xperia Z1 General] timberwolf60:
I always used kings root to root my phone. Please read here: http://www.softpedia.com/progClean/Kingo-ROOT-Clean-242398.html

Send from my C6903 using TapatalkPro

my Sg device: Z1 rooted136 ROM by NUT with 2.7.94 dualrecovery, mod by GavityBox 2.9.9. Samsung S2 standby for Z1 when Z1 no power.
[Xperia Z1 General] gregbradley:
This is wrong, when downgrading from 4.3 Fws to 4.2 FWs you do lose IMEI. However, you can still do the root process then upgrade again and your IMEI will return.

The kitchen I refered to is called dsixdas kitchen, the xda use dsixda made it, its the best tool you need to make flashable roms.

There is no need to backup TA if you cannot unlock the bootloader, because without and unlocked bootloader you cannot write to that partition. (People are advising it as a precaution as they just see a process rather that whats really happening)

If you downgrade to an 4.2FW then you can root, install recovery and then upgrade to a latest JB rootable ROM, you will lose IMEI when you downgrade but it will return on upgrading
[Xperia Z1 General] f_u_006:
But there is no ICS for Xperia Z1, and i am talking about stock ROM.
[Xperia Z1 General] gregbradley:
I meant 4.2, I will correct my post. You will lose IMEI by downgrading to android 4.2 from 4.3
[Xperia Z1 General] f_u_006:
It is because you've downloaded damaged firmware...

believe me! I downgraded and my imei was correct, rooted and then flashed prerooted rom using recovery.

Even if you lose it doesn't matter because your downgrading to upgrade back via recovery. but if you still have no imei, it still doesn't matter cuz your imei is in your cellphone pack and its saved in Sony.
[Xperia Z1 General] gregbradley:
I know. That's what I have been saying. However, you are the first person on hear who I have heard saying that they didn't lose IMEI when down grading from 4.3 to 4.2. If that's true then great for you, but for all other users, they lose it, but get it back when they upgrade
[Xperia Z1 General] 301stSpartan:
Great, you can use what you want, I don't really care. I've used it in the past too with my first Z1. But just because it doesn't contain a virus doesn't matter. It DOES collect your phone's IMEI number and send it to some server in China. What no one knows is what, if anything, they do with it. Could be harmless, and no one has reported anything bad that has happened bc of it. But I'd rather not give my IMEI to someone in China if I can easily avoid it using a better method.
[Xperia Z1 General] maid:
Root

I am a newb but I have just managed to flash my phone then update through Sony.

I am now running 4.3 14.2.a.1.136 now I would like to root.

Can you point me to a simple tutorial. I have tried looking but cant find anything without it going off track.
[Xperia Z1 General] timberwolf60:
No way to root 136, you have to use the latest flashtool to flash 534 and root it. Then read up these two threads and fellow the instructions strictly and you will be enjoying like me. 290 rom: http://xdaforums.com/showthread.php?t=2572988 and 136 rom: http://xdaforums.com/showthread.php?t=2628185.

For beginner please read up and especially those buttons function: http://xdaforums.com/showthread.php?t=2440565 and other reference material: http://lifehacker.com/lifehacker-pack-for-android-2013-our-list-of-the-best-819094535#utilities

Send from my C6903 using TapatalkPro

my Sg device: Z1 rooted136 ROM by NUT with 2.7.94 dualrecovery, mod by GavityBox 2.9.9. Samsung S2 standby for Z1 when Z1 no power.
[Xperia Z1 General] maid:
Trying to flash but it keeps coming up unplug the device, unplug devuice Power off device press back button plug usb ???

How can I press a back button when its off
[Xperia Z1 General] 301stSpartan:
It's volume down on our phone, since there is no hardware back key
[Xperia Z1 General] maid:
Thanks,

Is this ff rooted or do I need to root as well?

---------- Post added at 05:52 AM ---------- Previous post was at 05:43 AM ----------

phone is going around and around wont start

---------- Post added at 06:10 AM ---------- Previous post was at 05:52 AM ----------

Help somebody?????
[Xperia Z1 General] 301stSpartan:
Not sure what ftf you're talking about, but no, it most likely won't be rooted. Here's what you need to do:

1. Flash a 534 ftf firmware in flashtool

2. Root the 534 ROM using one of the various methods. Bin4ry's method is recommended

3. Install recovery

4. Flash the pre-rooted 136 zip file in recovery

5. Flash the small 136 ftf file that comes with the pre-rooted zip in flash tool

The links for the 136 files and instructions are in the post above yours. The link to the recovery is in this 136 root thread as well. The rest you can find easily in the general section (for 534 ftf and root methods)
[Xperia Z1 General] maid:
Flashed using C6903_14.1.G.1.534_[NUT]

Phone was in a loop and would not start.

Flashed back to C6903_14.2.A.1.136_Generic AU (1277-0078_R2B)

now back to 4.3

How can I flash the phone so that I can root it???
[Xperia Z1 General] maid:
also has card problem setpath failed:\phone\sdcard1\obex errorcode: _ c4-not found
[Xperia Z1 General] ak800i:
update

I would add to the OP that phone must be in MSC (mass storage mode) :)

If it says "usb debugging-mode not open!" that's your problem
[Xperia Z1 General] f_u_006:
First make sure that your devices is not carrier locked then do the following...

-DOWNGRADE

-ROOT

-INSTALL RECOVERY

-INSTALL LATEST PREROOTED ROM USING RECOVERY (Which can be found in Xperia Z1 Original development section)

-ENJOY.....
[Xperia Z1 General] mmoalem:
Hi. Have rooted my Lb Z1 9603, installed dual recovery and upgraded to. 136.

I am now suspecting there is a hardware problem and thinking of taking it back to O2 for repair. Obviously will need to remove root and recovery... What is the best way of crating a backup of the phone as it is now root and all(so I can reinstate it post repair) and then resetting the phone to a clean state?
[Xperia Z1 General] gregbradley:
use recovery to make a backup, then flash a stock ftf
[Xperia Z1 General] f_u_006:
Make a CWM or TWRP backup and flash only O2 is firmware.

You can find O2 is firmware at Mega ftf collection in general section of Xperia Z1.
[Xperia Z1 General] MON5TER:
i have no clue as to why people are telling you to downgrade then root

that makes no sense to me

first make sure your devices bootloader is unlocked http://unlockbootloader.sonymobile.com/

download doomlords advanced stock kernel > http://xdaforums.com/showthread.php?t=2439298

as it has cwm built in

and the supersuupdate.zip http://download.chainfire.eu/supersu

extract kernel and you will get a boot.img

place super su and kernel zip files on your phone

place boot.img in minimal adb folder located in c > programfiles x86

i use minimal adb and fastboot http://xdaforums.com/showthread.php?t=2317790

then enter fastboot and use the following commands

( fastboot flash boot boot.img ) when done ( fastboot reboot )

""if it hangs at "writing boot" just unplug after 1 min start phone and press volume up to enter cwm, i dont know why but sometimes it will just hang but it still works""

now you will be able to open cwm press volume up when light turns pink during boot

now flash super su update, and if it hangs flash the kernel again in cwm just to be sure

congrats your rooted

no need to downgrade and stuff around
[Xperia Z1 General] maid:
Thank you I had given up.

Two questions please what is i use minimal + adb and is there any real benefit to rooting and will I still get updates?
[Xperia Z1 General] MON5TER:
i had to edit post had a blond moment its minimal fastboot and adb and i posted a link to its thread

and yes there are many benefits to rooting, as for updates your more likely to get the system updates here before ota anyway

IMO rooting is the one best thing you can do to your device it gives you the freedom to do basically anything and there are great apps that you have to be rooted in order to use

if i helped give me a thanks
[Xperia Z1 General] maid:
my bootloader is not unlocked.

It says it can be unlocked.

How do I do that?
[Xperia Z1 General] f_u_006:
In your dialpad dial *#*#7378423#*#*

It will open service menu.

Go to Service Info>Configuration and check if bootloader unlock allowed = yes then you can unlock or vice versa.

If you wanna unlock then go to the first page of this thread.
[Xperia Z1 General] maid:
I cant find where there is instructions on how to unlock the bootloader.
[Xperia Z1 General] f_u_006:
Read it carefully:

xdaforums.com/showthread.php?t=2439328
[Xperia Z1 General] maid:
I read the post and went to Sony but I cant get this to work.

Is there another way?
[Xperia Z1 General] gregbradley:
No,

the only way to unlock the botloader is by using the official sony method from here

http://unlockbootloader.sonymobile.com/
[Xperia Z1 General] 301stSpartan:
There is no reason that it should not work if you follow the instructions exactly. You must be doing something wrong. Go to Sony's bootloader unlock site and follow what they say exactly
[Xperia Z1 General] maid:
The SDK manager is the problem I cant update this keeps telling me to close java and when I do that sdk closes
[Xperia Z1 General] f_u_006:
Just download flashtool and unlock your bootloader without java or sdk!

WARNING: MAKE A TA BACKUP BEFORE UNLOCKING BOOTLOADER, ONCE LOST THEN LOST FOREVER....
[Xperia Z1 General] harfot:
No, you can also do a repair from PC-Companion - that will also delete everything.
[Xperia Z1 General] colors:
Can someone confirm vroot doesn't mess up the camera? Something more to think about? That could be negative in using and experience the phone.
[Xperia Z1 General] Ferranza:
I used vroot and all is working fine

Inviato dal mio mirabolante z1 con tapa4....
[Xperia Z1 General] sofir786:
just wondering if anybody else is getting what im getting....so i rooted using vroot, but now whenever i install anything i get this notification in chinese.....i have no idea what it means.
[Xperia Z1 General] colors:
They have mentioned it a few pages back.. You have the chinese Su (superuser) automatically , install the english instead :)
[Xperia Z1 General] secguy:
Does anyone know which exploit is actually used by the 360root and vroot programs? Its very weird that they're able to root the device and noone knows how - or what else those programs install (they are not open source).

Has anyone tried to reverse-engineer them to see what's going on and create an english version?
[Xperia Z1 General] krabappel2548:
I don't know how to decompile .exe files so I can't investigate at the moment..
[Xperia Z1 General] SLtAR:
i did the vroot %100 working and safe but do i still have to use its chinese superuser app? or i can uninstall it ?
[Xperia Z1 General] harfot:
First you will have to install your own SU-user and activate it. It will ask to update the bin file, accept and give the rights with the Chinese version. If installation of bin file is OK then you can delete/freeze the Chinese version (if you don't alow your own SU-user to have root, you will have to reroot and try again).
[Xperia Z1 General] keyz86:
Kingo Root is confirmed working, it's basically vroot but in English. Might wanna update OP.

kingoapp.com/android-root.htm
[Xperia Z1 General] Ferranza:
my phone didn't boot anymore.....
[Xperia Z1 General] slonn:
After using Kingo root?

Sendt fra GN8
[Xperia Z1 General] Ferranza:
No. I used vroot few days ago but yesterday night after tons of attempts I was able to flash my phone losing root but........

Inviato dal mio C6903 con Tapatalk 4
[Xperia Z1 General] slonn:
I used this to tool to root the phone. Although it said at the end that root failed the phone was still rooted.

Sendt fra SGS4
[Xperia Z1 General] colors:
You cant find Xperia z1 on the supported list on home page, might be the reason it says failed. Nice you have root, im going to wait a few days. The info about Kingoapp is to little. Doesn't have the guts :)
[Xperia Z1 General] gz023247:
Someone please put me out of my misery lol!

I have rooted the phone using Vroot.

I have installed Superuser (Clockwork MOD version)

Given the above app rights.

So......How the heck do I get rid of the Chinese one now??? Still getting messages I have no idea what they mean :confused:

Tried looking for the Chinese version in my apps to delete but it doesn't show :-\

Edit: ....sorry found a way eventually :)
[Xperia Z1 General] jos_031:
HOW?
[Xperia Z1 General] chaosdoctor:
Can anyone upload the drivers for flashtool cause the link is down? I want to flash a rom and i can't!
[Xperia Z1 General] gz023247:
How did I do what exactly, the rooting or removing the Chinese superuser app after install?
[Xperia Z1 General] jos_031:
So just remove chinese superuser and install english . then all is fine?
[Xperia Z1 General] mmoalem:
Thanks for the info

Will the ftf overwrite the TWRP recovery?
[Xperia Z1 General] f_u_006:
Yes it will kill anything!

If you take your cellphone to the service provider with TWRP, they will charge you.

After you replacement is done you can root and install recovery again.

If you got any problem then quote or message me dear bro...
[Xperia Z1 General] gregbradley:
yes, it reverts your phone back to a completely stock state
[Xperia Z1 General] sidx1:
did the same u asked

lost netowrk and imei number

ph wud not be dectected by any program neither vroot or binary( yes usb debugging was enabled,all drivers were installed including sdk as well)eventually flashed stock rom again

shud i use Nuts ftf file this time but i have a c6902 and his file is for a c6903
[Xperia Z1 General] 301stSpartan:
You wil always lose your IMEI when you go from 4.3+ ROMs back down to 4.2. After you flash NUT's pre-rooted ROM your IMEI will come back.

NUT made files for both the 6903 and the 6902.

I don't know why your phone wasn't recognized. Hard to trouble shoot remotely. Worked fine for me and many others.
[Xperia Z1 General] papperlapapp:
If there is a prerooted ROM, why do you need to downgrade and root? Why not just install a prerooted ROM in the first place?
[Xperia Z1 General] gregbradley:
To install recovery. If you cannot root, you cannot install recovery and you cannot flash a pre-rooted rom.
[Xperia Z1 General] Looter:
Hi i have C6903 which has locked boot loader.

The phone is rooted and running 14.1.G.2.257 (4.2.2)

I would like to upgrade to 4.4.2 with root while keeping the boot loader locked.

Is it possible to go straight from the current build to 4.4.2?

Is there any detailed guide in order to to update my phone quickly.

My free time is really limited and this is why i am still with this old version but i think it is time to upgrade.

Thanks for reading.
[Xperia Z1 General] f_u_006:
Now install recovery and update to a prerooted 4.4.2 ROM using recovery.

Install Recovery: xdaforums.com/showthread.php?p=45149758#post45149758

Download recovery flashable Android 4.4.2 prerooted with dualrecovery: xdaforums.com/showthread.php?t=2687443

Hit Thanks button if this helped you!
[Xperia Z1 General] tsiftsism:
I try to follow this thread but it seems that i can't understand some posts!!

Is it possible to have a Z1 device which you can't have its bootloader unlocked according to Sony (Bootloader unlock allowed says No), and have it the same time rooted?
[Xperia Z1 General] maid:
21/028/2014 10:28:36 - INFO - Your phone bootloader cannot be officially unlocked

21/028/2014 10:28:36 - INFO - You can now unplug and restart your phone

21/029/2014 10:29:03 - INFO - Log written to M:\Flashtool\flashtool_2014-03-20_10-27-32.log
[Xperia Z1 General] gregbradley:
Yes it is, but you will have to downgrade to a 4.2 firmware, root using bin4rys method, install recovery them flash a pre rooted 4.4 rom
[Xperia Z1 General] maid:
Hi,

I was told that I could unlock the boot loader without downgrading earlier in this post.

Now I am thoroughly confused.

I tried downgrading but my phone went into bootloop
[Xperia Z1 General] 301stSpartan:
Unlocking the bootloader has nothing to do with downgrading. If your service menu says that the bootloader unlock is allowed, then you should be able to unlock at any time.

In order to root any firmware newer than 534, you can either 1) unlock the bootloader and install doomlord's kernel, or 2) you can downgrade to 534, root it, install recovery and flash a pre-rooted firmware through recovery.

Option 1 requires a bootloader unlock. Option 2 does not.
[Xperia Z1 General] maid:
I am on 4.3 build 136

I want to unlock bootloader so that I can put on any firmware or apps I like.

Please post links to option 1.

I am using flashtool

I tried the sony app but it is very buggy.
[Xperia Z1 General] 301stSpartan:
Fyi, unlocking the bootloader has nothing to do with apps you can install.

There are already guides for all of this out there. In order to link them, I'd have to search for them. Instead, you can search for them just as easily as I can. A lot of it has already been linked for you in this thread.
[Xperia Z1 General] f_u_006:
Check your bootloader unlock allowance by dialing *#*#7378424#*#* which is the UAN number of *#*#SERVICE#*#*

Now go to Service info>Configuration

If Bootloader Unlock = No, then you cant unlock bootloader but you can root by using some locked bootloader root methods at form or by doing these:

1-Downgrade

2-Root

3-Install Recovery

4-Flash the latest version using flashtool, which is prerooted and recovery installed.
[Xperia Z1 General] maid:
sorry I should not have said apps.

There is a camera fix for 20mp in auto
[Xperia Z1 General] gregbradley:
If that is what you want to do the they're is no need to unlock the bootloader, just follow the above in rooting worth a locked bootloader. It's mentioned numerous times in this thread and there are at least two threads in the socks that I can see
[Xperia Z1 General] 301stSpartan:
He's already said it is allowed. He's just having a hard time doing much beyond that.
[Xperia Z1 General] Hate Android Lag:
can i use this method on kitkat?
[Xperia Z1 General] Smbkilla:
Flashing

Is there any way of flashing device without losing all data. Can I make ftf file intall as update? I really don't want to lose al apps that I have downloaded and all personalizations I made. I know there are backup tools on play store but is that the only way? I'm using 4.3 stock and want to flash official fr kernel.
[Xperia Z1 General] tsiftsism:
As i wrote before, the device can't have its bootloader unlocked because Bootloader Unlock = No.

So, i only want to root it in order to use some apps needed root to run (ie. Adaway etc). To do this you told me to downgrade to a 4.2 firmware (now the device has the latest 4.4.2, so i have to downgrade via the flashtool) and then to follow the other steps you have mentioned.

In order to root the 4.2 firmware and install a recovery, what tutorial do i have to follow? Do i have to follow some of the steps are wriiten in the op of this thread or not? And lastly, can you point me which is the latest version which is prerooted and have the recovery installed?

Thanks in advance for your answers and sorry for those questions. I have root many devices in the past but not a Sony before, the device is not mine and i want do it correctly.
[Xperia Z1 General] gregbradley:
Downgrade to 4.2

search for Bin4rys root method, use it to root.

Search for DualRecovery in the development section for 4.2, install it

Search for [NUT]s 4.4 prerooted rom, install it.

All instructions are in the relevant threads.
[Xperia Z1 General] avveMeetU:
can I root z1 on 4.4.2 kitkat

Can I root z1 on 4.4.2??
[Xperia Z1 General] gregbradley:
Please don't quote huge posts just to add a 1 sentence question.

the answer is "Maybe"

Either unlock the bootloader and flash an insecure kernel

or

downgrade to 4.2, root, install recovery and flash a 4.4 pre rooted rom. The guides and instructions are all over the place.

(10th time and counting for today)
[Xperia Z1 General] avveMeetU:
I dont know how to recovery..i must downgrade?

Bootloader unlocked allowed is yes..

Where I find Flashable for this kitkat?
[Xperia Z1 General] gregbradley:
Yes, look in the relevant threads for instructions

In the development section
[Xperia Z1 General] avveMeetU:
Have a link for that?

Im new here....
[Xperia Z1 General] gregbradley:
The development section is one of these sub forums

http://xdaforums.com/xperia-z1

Sorry about this, but you will get on a lot quicker if you start to find these things on your own. There are plenty of people here to help (Me included) on specific problems you may have, but it is best if you start to search threads and read up before flashing things....
[Xperia Z1 General] sidx1:
wait what

send me a link of the file for c6902 by nut

cause as far as i know,,hes only made for c6903