Database Develop

Root Your Z1 Now [4.3[[Unlock Bootloader]

Here is the tip to root your Z1 (4.3) with the easy method. You Z1 must Unlock the Bootloader.
Please Copy All Your Zip Files To SD Card for Flash it with Recovery
Download SuperSU from Here
1.Unlock Bootloader by using Fastboot Command [If You Cannot Do It Then Stop Here]
2.Flash DoomKernel V3 (You can download from Here)
Command :
fastboot flash boot Z1-DooMKernel-v03.img
After flash the DoomKernel V3 please command :
fastboot reboot
It will go to Recovery Mode
Press Volume Up for CWM and Volume Down for TWRP
Flash all your Zip Files including SuperSu-v1.86.zip and then turn offf
3. Flash Your 14.2.A.0.290 Kernel by Using Flashtool (Kernel Only)
Where is Kernel? It's in your Firmware
After finish reboot your phone and enjoy the rooted.
Anything wrong please correct me. And I am welcome for all questions.
Brian Ly Mataba

Yes, seems to easy. You skipped few processes like how instal recovery to install kernel.

eclyptos said:
Yes, seems to easy. You skipped few processes like how instal recovery to install kernel.
Click to expand...
Click to collapse
Just flash the Doomkernel it will come with Recovery ^_^

Brianlymtb said:
Just flash the Doomkernel it will come with Recovery ^_^
Click to expand...
Click to collapse
Via flashtool in flashmode?

no, in flashtool with fastboot mode
or use fastboot and command window
fastboot flash boot "insert kernel name here"

gregbradley said:
no, in flashtool with fastboot mode
or use fastboot and command window
fastboot flash boot "insert kernel name here"
Click to expand...
Click to collapse
Cheers Man, this is confirmed full root without problems on mouting/unmouting?

Brianlymtb said:
Here is the tip to root your Z1 (4.3) with the easy method. You Z1 must Unlock the Bootloader.
Please Copy All Your Zip Files To SD Card for Flash it with Recovery
Download SuperSU from Here
1.Unlock Bootloader by using Fastboot Command [If You Cannot Do It Then Stop Here]
2.Flash DoomKernel V3 (You can download from Here)
Command :
fastboot flash boot Z1-DooMKernel-v03.img
After flash the DoomKernel V3 please command :
fastboot reboot
It will go to Recovery Mode
Press Volume Up for CWM and Volume Down for TWRP
Flash all your Zip Files including SuperSu-v1.86.zip and then turn offf
3. Flash Your 14.2.A.0.290 Kernel by Using Flashtool (Kernel Only)
Where is Kernel? It's in your Firmware
After finish reboot your phone and enjoy the rooted.
Anything wrong please correct me. And I am welcome for all questions.
Brian Ly Mataba
Click to expand...
Click to collapse
did you try relocking your bootloader afterwards? can we do that and keep the root?
i did so on my xperia ZR, only problem is phone usually goes into bootloop after relocking of the bootloader, but i made a nandroid backup before the relocking, and after relocking just flashed some rootable fw installed recovery and flashed the nandroid i made before.

eclyptos said:
Cheers Man, this is confirmed full root without problems on mouting/unmouting?
Click to expand...
Click to collapse
Yes and no...
You'll have read/write in recovery but only read in OS.
So basically, you'll have fully working root but you'll have to flash MODs or system APKs from recovery.
That shouldn't be problem...
This is (at the moment) best way to root your 4.3 OS
Sent from my Z1

If you have unlocked the bootloader and flashed one of the modified stock kernels from here then you have full root, and can write to system. I have done it several times today.

Kernel issue?
Ok, I followed this to the best of my knowledge but when I tried to flash the kernel.sin it kept giving an error that it's not a boot image... so I flashed the kernel from firmware in flashmode (by using the ftf but excluding everything besides kernel). Root apps work fine to my knowledge now, but am I supposed to be missing recovery now? I've tried installing busybox with no luck and can't get into recovery to install the zip. I'm guessing I did something wrong flashing the kernel in flashmode instead of fastboot. Can you give me advice? Thanks.
Edit: Got it with above post, thanks.

I want to try this now but do i need to back-up my TA before doing this?.using unbranded ftf

gaboh24 said:
I want to try this now but do i need to back-up my TA before doing this?.using unbranded ftf
Click to expand...
Click to collapse
You should backup TA and DRM keys but if you are on 4.3 you can't because you need root. You have to downgrade to 4.2.2, root the system, backup everything, update again and follow the steps.

eclyptos said:
You should backup TA and DRM keys but if you are on 4.3 you can't because you need root. You have to downgrade to 4.2.2, root the system, backup everything, update again and follow the steps.
Click to expand...
Click to collapse
thanks mate! is your z1 already rooted now?

gaboh24 said:
thanks mate! is your z1 already rooted now?
Click to expand...
Click to collapse
I got so amazing battery life so I'm scared to flash it again because from my experience when someting working very well you should not messing up with that. I will follow the steps to root this way only if I will had the opportunity to backup my TA and DRM keys, just in case something go wrong, without have to downgrade to 4.2.2. I do not want to downgrade at all so still undecided what do. I probably will wait and enjoy my phone this holidays and see if in few week coming up something new.
Anyway I still don't know well why I should backup my TA and DRM keys if with 4.3 everything working fine.

eclyptos said:
I got so amazing battery life so I'm scared to flash it again because from my experience when someting working very well you should not messing up with that. I will follow the steps to root this way only if I will had the opportunity to backup my TA and DRM keys, just in case something go wrong, without have to downgrade to 4.2.2. I do not want to downgrade at all so still undecided what do. I probably will wait and enjoy my phone this holidays and see if in few week coming up something new.
Anyway I still don't know well why I should backup my TA and DRM keys if with 4.3 everything working fine.
Click to expand...
Click to collapse
hahahahaha! I see! me too still undecided in this..you have a point and maybe I'll just wait more days because I can smell the upcoming stable root for 4.3.. BTW ecplyptos about 20MP and 8MP in iauto, the one that we are talking yesterday, remember?. for me it's not important if our ftf is default in 8MP superior auto..do you have any idea why vodafone ftf superior auto is default in 20MP?.geez!

My phone says no bootloader unlock allowed on service menu.
Question:
Can I still unlock it or no?
Sent from my C6903 using Tapatalk

albertobom said:
My phone says no bootloader unlock allowed on service menu.
Question:
Can I still unlock it or no?
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
how did that happen?...

albertobom said:
My phone says no bootloader unlock allowed on service menu.
Question:
Can I still unlock it or no?
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
No. There is no way.

I'm on Vodafone ES contract... I belive it's locked by the company by default, no?
Sent from my C6903 using Tapatalk
---------- Post added at 02:13 AM ---------- Previous post was at 02:11 AM ----------
eclyptos said:
No. There is no way.
Click to expand...
Click to collapse
So no custom firmware for me?
But can I root it? Cause on the previous firmware I could.
Sent from my C6903 using Tapatalk

gaboh24 said:
BTW eclyptos about 20MP and 8MP in iauto, the one that we are talking yesterday, remember?. for me it's not important if our ftf is default in 8MP superior auto..do you have any idea why vodafone ftf superior auto is default in 20MP?.geez!
Click to expand...
Click to collapse
20mpx in iAuto seem to be worse than expected, this was said from users with that FTF. I also don't care about that but I don't like restricted devices at all and even if the pictures are not good as they should be I will like anyway to have that option, switch between 20 and 8. We don't know yet why Vodafone has that but to me is just a marketing move to be interested more on they stuff.
---------- Post added at 01:25 AM ---------- Previous post was at 01:17 AM ----------
albertobom said:
I'm on Vodafone ES contract... I belive it's locked by the company by default, no?
So no custom firmware for me?
But can I root it? Cause on the previous firmware I could.
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
Nobody know who locked the phones, Vodafone or Sony, and why, can be for FTF compatibility, restrictions or something else.
Anyway with Locked Bootloader you can install custom rooms, you can install stock kernels, you can root your phone if it's on Android 4.2.2 but on 4.3 the rooting for Locked BL still in developing so you have to wait. The only thing which you can't install on your phone with locked BL is custom kernels. That's all.
---------- Post added at 01:28 AM ---------- Previous post was at 01:25 AM ----------
gaboh24 said:
how did that happen?...
Click to expand...
Click to collapse
Is not happen, it's was just lock from factory. Happen rarely after updates but I think is not the case.

[Q] Clarifying question about 4.3 root.

This is for my curiosity and many other users who I know are wondering the same thing, I've searched for this, but can't really find anything that answers it to my satisfaction.
So I'm running 4.3, with build number .290
I want to root my phone, but I know I need to flash .534 back to my phone. As far as I know, THIS will stop my sim being recognised by the phone. Do I then need to ROOT the phone, and then flash .290 again for the sim to work again.
So which .290 flash will I use? Just the normal FTF file for .290?
Thank you, I'm an active contributor to the forum, but I like to be super sure about what I'm doing before I do it, and I gather many other users do. The reason I'm asking in such detail is because my phone was rooted before, I updated (by mistake) to 4.3 and then flashed back to .290 where it stopped my sim working. Took me a few hours to work out how to fix it, as the pccompanion wasn't working for me!
Thank you!

TagEHeuer said:
This is for my curiosity and many other users who I know are wondering the same thing, I've searched for this, but can't really find anything that answers it to my satisfaction.
So I'm running 4.3, with build number .290
I want to root my phone, but I know I need to flash .534 back to my phone. As far as I know, THIS will stop my sim being recognised by the phone. Do I then need to ROOT the phone, and then flash .290 again for the sim to work again.
So which .290 flash will I use? Just the normal FTF file for .290?
Thank you, I'm an active contributor to the forum, but I like to be super sure about what I'm doing before I do it, and I gather many other users do. The reason I'm asking in such detail is because my phone was rooted before, I updated (by mistake) to 4.3 and then flashed back to .290 where it stopped my sim working. Took me a few hours to work out how to fix it, as the pccompanion wasn't working for me!
Thank you!
Click to expand...
Click to collapse
why don't you unlock your 4.3 rom and flash a recovery to root it ? would be easier

AntiDroid said:
why don't you unlock your 4.3 rom and flash a recovery to root it ? would be easier
Click to expand...
Click to collapse
Not really used to that, new to all this. A guide somewhere?

Look here,
http://forum.xda-developers.com/showthread.php?p=48902196
sent from a Rooted & Unlocked Xperia Z1

TagEHeuer said:
Not really used to that, new to all this. A guide somewhere?
Click to expand...
Click to collapse
If you want to flash the firmware you have, follow this guide from part B to part C, then you will have a ftf copy of your current firmware.
About the root thing, downgrade to .257 then .534 so you don't have the IMEI and signal issues. Then root and OTA to .257 and then, if you get OTA update to .290 go for it, but some people said that you will only get partial root access.
So you will have to either flash a prerooted firmware or unlock bootloader and turn off Sony's RIC and then root the normal way.
To unlock bootloader, just follow the instructions here but don't forget to backup the TA partition using this guide.
Regards,
~J2C

Rooting .290 JB 4.3

Hello,
Coming from a Galaxy S2 flashing and rooting is not new to me but for me there are some questions for the Xperia Z1.
When i bought the Z1 it was on 4.2.2, and offcourse i wanted root the same day
After trying numerous times with Vroot i gave up.
After some more reading i read that i had to downgrade and then flash an older version, then root and flash teh correct version and so on.....(cant find the correct topics anymore )
After doing that my phone wasnt working properly and i connected with PC Companion and it gave me the update to .290 JB 4.3 and everything was fine except foor root.
Did some more reading and found the solution,
Now I'm reading that if you are on .290 4.3JB that root isnt possible(correct me if im wrong).
I want to share how i did it because for me it went very easy.The hardest part was getting the drivers installed correctly hhaha
First i unlocked the bootloader and then i flashed a CWM with root and recovery.
I followed the steps provided on this links.
http://techbeasts.com/2013/12/18/how-to-unlock-bootloader-of-sony-xperia-devices-guide/
http://techbeasts.com/2013/12/19/in...ng-latest-14-2-0-a-290-firmware-how-to-guide/
Al of this went so easy that i'm startin to wonder if its me who did it wrong and dont understand it or if you didnt know about it,
The only thing i forgot was a TA backup :angel:
to MODS....if its in the wrong section please replace it.

Actually it is the official way. Unlock -> CWM -> Root with CWM (Notification)
Rooting 4.3 isn't impossible, but morr difficult than on earlier versions. Google wanted to improve the security of android. Most of the ways which "make" the opportunity of rooting are malware-ways too.
You don't need to backup your TA partition with .290 and above, because the camera will work after the BL unlock.

The big question is if root for unlocked boot loaders will ever be available for 4.3! I really doubt it.
Sent from my C6903 using xda app-developers app

You mean Locked Bootloader, i think?
Question about CWM, does it function the same as it did with my S2? So, back-up and restore with CWM?
sent from rooted en unlocked 4.3 Jb Xperia Z1

djg269 said:
Question about CWM, does it function the same as it did with my S2? So, back-up and restore with CWM?
sent from rooted en unlocked 4.3 Jb Xperia Z1
Click to expand...
Click to collapse
it should, why are u asking ?

Curious
Eager to try but not in the mood for a complete do over if it fails
sent from rooted en unlocked 4.3 Jb Xperia Z1

Ohh, I will be glad to rooting without unlocking BL...on 4.3..but still no way...

This works just fine, thanks for sharing this! Just FYI, this is also an interesting read about getting full root access on 4.3: http://forum.xda-developers.com/showthread.php?t=2573921

eclyptos said:
Ohh, I will be glad to rooting without unlocking BL...on 4.3..but still no way...
Click to expand...
Click to collapse
I have heard from @shem2409 that a partial root on LB for 290 (4.3) is possible, but I have not figured out how to do it yet. I think you can pull it off with the insecure ramdisk hack, but to install that, you need to install XZDualRecovery; to install XZDR, you need to be rooted; it's only possible to root 534 LB and when upgrading to 290 root is lost. So, it seems to be a chicken-and-egg problem to me at the moment. I think I must be missing something.

xasbo said:
I have heard from @shem2409 that a partial root on LB for 290 (4.3) is possible, but I have not figured out how to do it yet. I think you can pull it off with the insecure ramdisk hack, but to install that, you need to install XZDualRecovery; to install XZDR, you need to be rooted; it's only possible to root 534 LB and when upgrading to 290 root is lost. So, it seems to be a chicken-and-egg problem to me at the moment. I think I must be missing something.
Click to expand...
Click to collapse
That's why I do not rooted mine phone yet. Partial root is not worth to do, full root is what we really need but still under testing and also Unlocked Bootloader is needed. Unlock bootloader we lose the DRM keys which we need if one day we want go back to stock and not lose warranty but to do that we have to Buckup TA. To Backup TA we need root, but I updated to 4.3 and I can't. It's to early to fully rooting 4.3. We have to wait. Developers are working on that and I hope a full root come without unlock bootloader. I hope so.

eclyptos said:
That's why I do not rooted mine phone yet. Partial root is not worth to do, full root is what we really need but still under testing and also Unlocked Bootloader is needed. Unlock bootloader we lose the DRM keys which we need if one day we want go back to stock and not lose warranty but to do that we have to Buckup TA. To Backup TA we need root, but I updated to 4.3 and I can't. It's to early to fully rooting 4.3. We have to wait. Developers are working on that and I hope a full root come without unlock bootloader. I hope so.
Click to expand...
Click to collapse
If you want to backup TA now, you can - flash back to any 534 FTF, root, make your backup, then upgrade back to 290.

xasbo said:
If you want to backup TA now, you can - flash back to any 534 FTF, root, make your backup, then upgrade back to 290.
Click to expand...
Click to collapse
This is what I don't want to do. Unlocking Bootloader on 4.3 will also compromise few features like Bionz and X-Reality. I don't think I really need them but for me will be good enough to have Full Root with Locked Bootlader and Apps to SD. I don't ask to much, so I wait.

eclyptos said:
This is what I don't want to do. Unlocking Bootloader on 4.3 will also compromise few features like Bionz and X-Reality. I don't think I really need them but for me will be good enough to have Full Root with Locked Bootlader and Apps to SD. I don't ask to much, so I wait.
Click to expand...
Click to collapse
You just took those words from my fingers. The wise way here is waiting and cheering developers to figure out how things work with Z1, 4.3 just came a few weeks ago and (hopefully) we will get 4.4 soon, so for that time you'll have to do that trickery again to keep your phones rooted.

AntiDroid said:
Actually it is the official way. Unlock -> CWM -> Root with CWM (Notification)
Rooting 4.3 isn't impossible, but morr difficult than on earlier versions. Google wanted to improve the security of android. Most of the ways which "make" the opportunity of rooting are malware-ways too.
You don't need to backup your TA partition with .290 and above, because the camera will work after the BL unlock.
Click to expand...
Click to collapse
I mistakenly took the .290 update as well and I'm now looking for a way out. This whole backing up the TA thing worries me because I'm afraid I'll lose those DRM keys and bravia etc..... Are you saying that I will be fine and all the keys will be intact if I follow this guide?
Is it possible to downgrade the firmware instead?
What would you suggest?
Thanks

xasbo said:
I have heard from @shem2409 that a partial root on LB for 290 (4.3) is possible, but I have not figured out how to do it yet. I think you can pull it off with the insecure ramdisk hack, but to install that, you need to install XZDualRecovery; to install XZDR, you need to be rooted; it's only possible to root 534 LB and when upgrading to 290 root is lost. So, it seems to be a chicken-and-egg problem to me at the moment. I think I must be missing something.
Click to expand...
Click to collapse
Ok, so here is a little clarification
You need to downgrade to .534, root, install recovery and then flash a prerooted .290 rom from (http://forum.xda-developers.com/showthread.php?t=2572988) or one of the stock-based custom roms such as monxdified (http://forum.xda-developers.com/showthread.php?t=2463675) if you want a partially rooted, locked bootloader 4.3 firmware on your Z1. There is an instruction on how to install on locked bootloader in the thread.

Rooting on the newest version of Android 4.3.3 isn't impossible on the Xperia Z1, it just takes you more steps than normal to actually get full root access. I have a locked bootloader as well but I was able to get a rooted version of Android 4.3.3, specifically the iHackers 2.0 ROM running Android 4.3.3 with full root access. Here's how I got full root access on the iHackers 2.0 ROM:
1) Download the .ftf file named C6903 14.1.G.1.534 Global 1277-2880_R4A from the compiled FTF thread at this link: http://forum.xda-developers.com/showthread.php?t=2469191
This is a version of the original Stock Rom that the VROOT program will actually work on when trying to ROOT your phone.
2) Flash the ROM you downloaded using Flashtool (steps on how you can go about doing that should be in the Xperia Z1 General forum.) and now, you're ready to root your phone with it.
3) Download, install and run VROOT to root your phone. Again, more information on how to properly root your phone using VROOT can be found in the Xperia Z1 General forum. For me, I just turned on USB Debugging on my Z1, connected my phone to my computer while VROOT was running and clicked the green button until I got root access. It's extremely easy.
4) With Root Access, now you can download and install Dual Recovery for the Xperia Z1 on your phone.
5) Download the latest iHackers 2.0 ROM from the Xperia Z1 Android Development thread and copy it to your phone. This is hands down, the best ROM for the Xperia Z1 right now in terms of battery life. With the latest 4.3 update, I'm able to get over 2 Days worth of battery life on one charge. Battery life is much better on the new iHackers 2.0 ROM running Android 4.3.
6) Download the flashable Locked Dual Recovery for the Xperia Z1 here. http://nut.xperia-files.com/
The file is called XZ-lockeddualrecovery2.7.63-BETA.flashable.zip (8.48MB), download it and copy it to your phone, preferably the same place you copied the iHackers 2.0 ROM. To make things easier for yourself, create a new folder on your phone or SD Card in your phone and name it iHackers. Copy both the iHackers 2.0 ROM and the flashable Locked Dual Recovery.zip file into this folder.
7) With both files now copied to a folder on your phone, you're now ready to go into recovery to flash the iHackers 2.0 ROM. Boot into recovery and once you're there, do a Wipe Data/Factory Reset before Installing the ROM.
The rest of these steps are now taken directly from the iHackers 2.0 download thread on the Xperia Z1 Android Development forum.
8) Install the ROM and THEN Dual Recovery. Don't make the same mistake I did, once the installer is finished, DON'T REBOOT THE DEVICE. Uncheck the "Reboot Device" box and go back to recovery to install the flashable Dual Recovery.zip file that's in the iHackers 2.0 folder.
9) Switch Off Your Phone (Do Not Reboot). Select No to Disable Flash Recovery Confirmation.
10) Install Kernel.ftf for C6903 (.290) or Kernel.ftf for C6902 (.290) with Flashtool to get compatible Kernel and Baseband. To download the kernel.ftf file, go to the original iHackers 2.0 thread to download and flash the kernel using Flashtool. You should be familiar with Flashtool at this point since if you make it to this step, you've already used Flashtool once to flash the .534 baseband version of Android.
11) Reboot and Enjoy. Now you're running the latest version of Android 4.3 on your Xperia Z1 on a Locked Bootloader WITH full Root Access. Sure, it's not the stock version but the iHackers 2.0 version of Android 4.3 is just as good, if not better. This will certainly do until there's a better way to simply root the newest Stock Version of Android 4.3.
I've been looking into unlocking my bootloader to install custom kernels on my Z1 but the battery life and performance on my Z1 with a locked bootloader is already pretty impressive. I can't imagine how good it could be with a custom kernel.

deli pastrami said:
Are you saying that I will be fine and all the keys will be intact if I follow this guide?
Click to expand...
Click to collapse
No, if you Unlock Bootloader you will lost the DRM keys permanently with Bionz and X-Reality, even with Android 4.3, if you do not do a backup, but the difference from 4.2 is that your phone will still working properly.
deli pastrami said:
Is it possible to downgrade the firmware instead?
Click to expand...
Click to collapse
Yes.
deli pastrami said:
What would you suggest?
Click to expand...
Click to collapse
Nobody can suggest what to do. You have to figure out by yourself what you need. It's your own risk.
---------- Post added at 12:11 AM ---------- Previous post was at 12:00 AM ----------
x016x said:
Rooting on the newest version ..bla..bla..bla
....bla..bla..bla..bla...king my bootloader to install custom kernels on my Z1 but the battery life and performance on my Z1 with a locked bootloader is already pretty impressive. I can't imagine how good it could be with a custom kernel.
Click to expand...
Click to collapse
Thanx man. I appreciate the time you took to explain the process step by step. One step very important you forgot to mention, Backup TA, never forget to mention that. Anyway I will check if this actually get me full root and all the stuff and when I finally will lose my patient I will start follow the guide and flashing and burning my Z1.

shem2409 said:
Ok, so here is a little clarification
You need to downgrade to .534, root, install recovery and then flash a prerooted .290 rom from (http://forum.xda-developers.com/showthread.php?t=2572988) or one of the stock-based custom roms such as monxdified (http://forum.xda-developers.com/showthread.php?t=2463675) if you want a partially rooted, locked bootloader 4.3 firmware on your Z1. There is an instruction on how to install on locked bootloader in the thread.
Click to expand...
Click to collapse
Ahh, cheers, I thought there was a way to root any arbitrary ROM, that's where I was getting hung up. The pre-rooted options make total sense.
eclyptos said:
Thanx man. I appreciate the time you took to explain the process step by step. One step very important you forgot to mention, Backup TA, never forget to mention that. Anyway I will check if this actually get me full root and all the stuff and when I finally will lose my patient I will start follow the guide and flashing and burning my Z1.
Click to expand...
Click to collapse
The instructions didn't say to unlock the bootloader, which is the only sure-fire way to lose your TA partition. However, I would agree there's no good reason *not* to back it up anyway. Better safe than sorry!

xasbo said:
The instructions didn't say to unlock the bootloader, which is the only sure-fire way to lose your TA partition. However, I would agree there's no good reason *not* to back it up anyway. Better safe than sorry!
Click to expand...
Click to collapse
Ahhh, ok, so you are confirming that the guide is incomplete and we have to unlock bootloader anyway if I follow that? Hmmm...I am a bit puzzled.

eclyptos said:
Ahhh, ok, so you are confirming that the guide is incomplete and we have to unlock bootloader anyway if I follow that? Hmmm...I am a bit puzzled.
Click to expand...
Click to collapse
Sorry, no. In his instructions, UB is not necessary because XZDualRecovery can be installed on LB. The reason skipping the TA backup is okay is because the instructions do not unlock the BL.

Problem rooting Xperia Z1 (KitKat)

Okay .. So I'm running ver. 14.3.A.0.681 on my Z1 and I want to root it .. I heard of a method in which the phone must be downgraded, then rooted, then reupdated again using flashtool .. But every time I try to downgrade I get stuck in a boot loop .. I have managed to fix the boot loop problem by reflashing the 14.3.A.0.681.ftf
Please guys how can I downgrade without having this problem? And does this rooting method work? If not, what should I do?
Sent from my C6903 using xda app-developers app

ralph97 said:
Okay .. So I'm running ver. 14.3.A.0.681 on my Z1 and I want to root it .. I heard of a method in which the phone must be downgraded, then rooted, then reupdated again using flashtool .. But every time I try to downgrade I get stuck in a boot loop .. I have managed to fix the boot loop problem by reflashing the 14.3.A.0.681.ftf
Please guys how can I downgrade without having this problem? And does this rooting method work? If not, what should I do?
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
Hi ralph97,
Here is what I did (although I was on .257 to start with)
1) Flashed C6903 14.1.G.1.534 Generic from here - http://forum.xda-developers.com/showthread.php?t=2469191
2) Install dualrecovery from here - http://forum.xda-developers.com/showthread.php?t=2261606
3) Flash SuperSU (via recovery) from here - http://download.chainfire.eu/282/SuperSU/
4) Update to NUTs .681 from here - http://forum.xda-developers.com/showthread.php?t=2687443
Each time I flashed an ftf, I cleared everything, so I made a backup (I just copied the stuff such as music, photos etc to my pc)
I hope that this helps.
PS - all cradits to helping me to @gregbradley
Regards,
Alan

If you open the BL there is no need to make all the way back to 534.
You just have to open the BL install a recovery, on the 680 ftf, and then install the supersu.

xneo70 said:
If you open the BL there is no need to make all the way back to 534.
You just have to open the BL install a recovery, on the 680 ftf, and then install the supersu.
Click to expand...
Click to collapse
Yes this is true, but you may want to backup your TA partition before unlocking the bootloader and this needs root, so you have to downgrade to .534 anyway.
So, yes technically you can do this, but I DO NOT advise it.

Well, the first time you do it, probably it shoud be done as you say. :laugh:

i also do that...its work..dont need to downgrade..

avveMeetU said:
i also do that...its work..dont need to downgrade..
Click to expand...
Click to collapse
I hoped you backed up your TA....
You need root to do it, so it has to be done BEFORE you unlock.

xneo70 said:
If you open the BL there is no need to make all the way back to 534.
You just have to open the BL install a recovery, on the 680 ftf, and then install the supersu.
Click to expand...
Click to collapse
avveMeetU said:
i also do that...its work..dont need to downgrade..
Click to expand...
Click to collapse
Please remind to People the consequences in doing this! Like the Warranty, after Unlock Bootloader, will be Voided and even before that, like @gregbradley already said, Backup TA to not lose DRM Keys. The short way isn't the best all the time.

You do not reupdate by flashtool.
Only with the recovery.
Damn my thread got locked.
Sent from my C6903 using xda app-developers app

Guys thank you very much, but i went with the safe way and downgraded, then rooted using v root .. but there is still one problem, everytime i try to flash the dual recovery (on cmd), i get:"adb sserver error killing..."
"unable to open daemon"
What should i do??

ralph97 said:
Guys thank you very much, but i went with the safe way and downgraded, then rooted using v root .. but there is still one problem, everytime i try to flash the dual recovery (on cmd), i get:"adb sserver error killing..."
"unable to open daemon"
What should i do??
Click to expand...
Click to collapse
Reboot your computer and try again.

Thankss!!

nalab1 said:
Hi ralph97,
Here is what I did (although I was on .257 to start with)
1) Flashed C6903 14.1.G.1.534 Generic from here - http://forum.xda-developers.com/showthread.php?t=2469191
2) Install dualrecovery from here - http://forum.xda-developers.com/showthread.php?t=2261606
3) Flash SuperSU (via recovery) from here - http://download.chainfire.eu/282/SuperSU/
4) Update to NUTs .681 from here - http://forum.xda-developers.com/showthread.php?t=2687443
Each time I flashed an ftf, I cleared everything, so I made a backup (I just copied the stuff such as music, photos etc to my pc)
I hope that this helps.
PS - all cradits to helping me to @gregbradley
Regards,
Alan
Click to expand...
Click to collapse
Sorry if I sound stupid(own a samsung GS2, which was rooted within 10 minutes ), but can I flash a rooted rom(like ihackers for e.g.) after I install dualrecovery instead of flashing SuperSu and than updating to NUTs .681? I can live with jellybean a few more months

allinkiran said:
Sorry if I sound stupid(own a samsung GS2, which was rooted within 10 minutes ), but can I flash a rooted rom(like ihackers for e.g.) after I install dualrecovery instead of flashing SuperSu and than updating to NUTs .681? I can live with jellybean a few more months
Click to expand...
Click to collapse
You still need to flash SuperSU to get full root, but in step 4 just flash the ROM of your choice.

gregbradley said:
You still need to flash SuperSU to get full root, but in step 4 just flash the ROM of your choice.
Click to expand...
Click to collapse
I did not that, I flashed .534, Bin4ry, Recovery and then ROM.. Do I not have Full ROOT Now?
---------- Post added at 02:44 PM ---------- Previous post was at 02:42 PM ----------
BTW, I installed SuperSU apk instead of flashing .zip, it do not still the same?

[Q] Point me in the right direction...??

Hi there guys!
I want to root my Z1 c6906, unlock the bootloader and flash custom roms, but im kind of confused right now because i have read a lot of different guides and im not pretty sure which one to follow now. I also learned on one thread that i should do a TA and DRM Keys backup because they can be lost forever if i don't do a backup. Also the IMEI. So im not pretty sure how to do that. Also saw a thread about bricking the device, and kind of got scared. Btw, i have plenty of experience working on Android devices, unlocking, rooting, flashing roms, etc. I have used Android since the G1, but im kind of confused right now about how to proceed on this device because this is my first Sony and my last phone was a Nexus 4, which was virtually unbrickable. Can anyone help me out here?

djluis48 said:
Hi there guys!
I want to root my Z1 c6906, unlock the bootloader and flash custom roms, but im kind of confused right now because i have read a lot of different guides and im not pretty sure which one to follow now. I also learned on one thread that i should do a TA and DRM Keys backup because they can be lost forever if i don't do a backup. Also the IMEI. So im not pretty sure how to do that. Also saw a thread about bricking the device, and kind of got scared. Btw, i have plenty of experience working on Android devices, unlocking, rooting, flashing roms, etc. I have used Android since the G1, but im kind of confused right now about how to proceed on this device because this is my first Sony and my last phone was a Nexus 4, which was virtually unbrickable. Can anyone help me out here?
Click to expand...
Click to collapse
Quite simple process actually, just flash .534 ftf with flashtool and root with bin4ry or use nuts dual recovery installer. To backup your ta before unlocking bootloader, simply use the Backup TA tool

Ahki767 said:
Quite simple process actually, just flash .534 ftf with flashtool and root with bin4ry or use nuts dual recovery installer. To backup your ta before unlocking bootloader, simply use the Backup TA tool
Click to expand...
Click to collapse
Thanks. And what about the DRM keys?

djluis48 said:
Thanks. And what about the DRM keys?
Click to expand...
Click to collapse
The DRM keys are in the Ta partition

Ahki767 said:
The DRM keys are in the Ta partition
Click to expand...
Click to collapse
I see. Another question, i see that for my devices the only .534 TFT available is for Rogers. There is no problem if i flash using Flashtool?

djluis48 said:
I see. Another question, i see that for my devices the only .534 TFT available is for Rogers. There is no problem if i flash using Flashtool?
Click to expand...
Click to collapse
Yes, I'm sure there'll be no problems

Ahki767 said:
Yes, I'm sure there'll be no problems
Click to expand...
Click to collapse
Sorry for bringing back this thread. Now i got time to start trying to unlock the phone and flash custom roms, was extremely busy before with work.
New problem: After i downgraded to FTF .534, rooted and made the TA Backup, i check if the phone was "allowed" to be unlocked and surprise, it says it can't be unlocked. Tried unlocking with Flashtool and it said the same thing. Can the phone be unlocked or is there a way to flash roms without unlocking?
Right now im feeling really depressed with this phone. If i can't unlock it, i most likely will sell it and get something that can be unlocked.
One of the reasons i want to unlock is because on 4.4, Google prohibited the phone to write on the Ext.SD and i want a way to overcome that prohibition and use it like i was able to on 4.3.

If it says it cannot be unlocked then it cannot be unlocked
However, you can still sort out the issue of writing to the ext SDcard by rooting and following the instructions in this thread
http://forum.xda-developers.com/showthread.php?t=2687966
In order to do that, you only need root, not to be unlocked

gregbradley said:
If it says it cannot be unlocked then it cannot be unlocked
However, you can still sort out the issue of writing to the ext SDcard by rooting and following the instructions in this thread
http://forum.xda-developers.com/showthread.php?t=2687966
In order to do that, you only need root, not to be unlocked
Click to expand...
Click to collapse
Ok. That sucks. Thanks for the link.
Another question: How i root.757? I was able to root .534, but not sure how i need to proceed now. Do i need to download generic .757 and apply any root method? Or the root will still be there if i flash it over my current rooted .534?

1) Flash a stock 534 FTF (Ignore if you are already on 534)
2) Install dual recovery (Find files and instructions in the XZ dual recovery thread in the cross device development section)
3) Flash a prerooted 757 rom (Find files and instructions in the development section)
Done, 3 easy steps

gregbradley said:
1) Flash a stock 534 FTF (Ignore if you are already on 534)
2) Install dual recovery (Find files and instructions in the XZ dual recovery thread in the cross device development section)
3) Flash a prerooted 757 rom (Find files and instructions in the development section)
Done, 3 easy steps
Click to expand...
Click to collapse
So i can flash any rom now with that recovery? Even if my bootloader is still unlocked? Or only stock based roms?

djluis48 said:
So i can flash any rom now with that recovery? Even if my bootloader is still unlocked? Or only stock based roms?
Click to expand...
Click to collapse
If your bootloader is unlocked you can flash any rom from the development sections or the original development section
But if your bootloader is unlocked you do not need to do any of this to root.
Just flash DooMKerneL or [NUT]s XZDR kernel
If your bootloader is locked, you have to downgrade and root that way. Then you can flash any stock based rom, look in the development section for them

gregbradley said:
If your bootloader is unlocked you can flash any rom from the development sections or the original development section
But if your bootloader is unlocked you do not need to do any of this to root.
Just flash DooMKerneL or [NUT]s XZDR kernel
If your bootloader is locked, you have to downgrade and root that way. Then you can flash any stock based rom, look in the development section for them
Click to expand...
Click to collapse
Oops. Im sorry. I meant locked. Was doing something else and wrote that fast. Thanks for the answer. Will check. Got the DualRecovery installed now and will try to install a prerooted .757 later.