[Q] Z1 kernel flashing - Xperia Z1 Q&A, Help & Troubleshooting

Hi, i just bought my Z1 and I might receive it next week. But i wanted to know if it si possible to flash kernels from recovery like samsung phones or if it still need a pc (flashtool or adb) like the 2011 xperias

ffp. said:
Hi, i just bought my Z1 and I might receive it next week. But i wanted to know if it si possible to flash kernels from recovery like samsung phones or if it still need a pc (flashtool or adb) like the 2011 xperias
Click to expand...
Click to collapse
You need PC. If the phone is with Android 4.2.2 you have first root you phone, backup up TA and DRM keys, then update to FTF .290 Android 4.3, Unlock Bootloadre and root again, install recovery or install custom kernel with recovery implemented.
Why all of this?
You need TA and DRM key in case you want go back to factory state and do not avoid warrany, DRM keys are lost when you unlock your bootloader.
Because to flash custom kernels you have to unlock your bootloader, if you unlock you bootloader you will broke your camera on Android 4.2.2.
With 4.3 you do not have this problem with the camera because the problem was fixed with the update.
If you want flash stock kernels you don't need to unlock bootloader but stock kernels are stock, no tweeks and no recovery.

Related

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.

questions about Doomlord's leak 4.3 for xperia SP

I flashed the leaked 4.3 for my Xperia SP and i have some questions
1. am I rooted now? i see the SU but when i open it, it says i need to reroot my device
2. if i dont want CWM and to be rooted do i need to flash the kernel fix?
3. in my device i see Bravia Engine ticked and gracenote. is my device relocked the bootloader after i flash the leaked 4.3?and if not if i lock again the booloader am i going to have problems with the leaked 4.3?
thanks in advanced!
panagiotisgr said:
I flashed the leaked 4.3 for my Xperia SP and i have some questions
1. am I rooted now? i see the SU but when i open it, it says i need to reroot my device
2. if i dont want CWM and to be rooted do i need to flash the kernel fix?
3. in my device i see Bravia Engine ticked and gracenote. is my device relocked the bootloader after i flash the leaked 4.3?and if not if i lock again the booloader am i going to have problems with the leaked 4.3?
thanks in advanced!
Click to expand...
Click to collapse
Hi!
1.Have you flashed the root fix.zip? If you didnt, you dont have root.
2.I think so.
3.Because this is an unofficial ROM(its not directly from sony) BE2 is working, but when Sony release it officialy, it won't be working.If you relock the bootloader you gonna end up with a bricked device.
BlAckXpeRia said:
Hi!
1.Have you flashed the root fix.zip? If you didnt, you dont have root.
2.I think so.
3.Because this is an unofficial ROM(its not directly from sony) BE2 is working, but when Sony release it officialy, it won't be working.If you relock the bootloader you gonna end up with a bricked device.
Click to expand...
Click to collapse
thanks for the answer

[Q] Help regarding flashing + root + unlock

Hey
Sorry for this noob questions but I wan't to be 100% sure i'm doing this right. I'm experienced with rooting, but mostly on samsung devices which I find a bit easier and less confusing.
First of all i'm running .290 with LB. And I want .290 with full root and UL and the ability to come back to stock .290 with LB anytime without loosing drmkeys, bravia engine etc.
Here is what I found out I need to do so far:
1. Download and flash via flashtools the .257 fw (prerooted/partial root?) from this thread http://forum.xda-developers.com/showthread.php?t=2572988
2. backup TA as described in a other thread.
3. unlock bl via the offical way and install
4. install XZDualRecovery
5. Use the first thread I linked to update to .290 firmware
6. Take a beer and enjoy fully rooted and unlocked 4.3?
And if I want to go back to stock LB without any loss of functions or sony beeing able to determine it was ever unlocked, i just restore my ta and flash my original .290 ftf?
Just need some conformation that this is the way to go and if there is anything in this process i need to be extra careful about?
after flashing .257 fw..... root it....then make TA backup.....then unlock BL.....then flash .290 fw....flash doomlord kernel....root ur fon....now u r good to flash .zip files through recovery...
bahafeld said:
And if I want to go back to stock LB without any loss of functions or sony beeing able to determine it was ever unlocked, i just restore my ta and flash my original .290 ftf?
Just need some conformation that this is the way to go and if there is anything in this process i need to be extra careful about?
Click to expand...
Click to collapse
Correct but I will recommend, in case you want go back to original, to flash the Stock .290 FTF first and then lock your Bootlader because if you have a custom kernel on it and you lock your phone, you can brick it. Full Root will not void your warranty so if you don't want to instal custom kernels you can easily keep your bootloader locked and get full root on .290.

[Q] C6903 .290 Need help with root, downgrade, TA backup

Alrighty some background info and where I'm at. I've got some dev (Android XML layout fixes) experience on a custom ROM on i9300 and I finally decided to upgrade my phone onto the beasty Xperia Z1.
My phone came factory shipped with .290. It's the C6903 model. I've been looking up videos and trying to find info about where to begin with getting my root, bootloader, cwm, and custom ROM install going. Then I found out about the TA partition and that even though my phone allows me to unlock the bootloader, it's a smart idea to first backup the TA partition before I unlock my bootloader via the $ony website. With the TA backed up I can revert my phone back to stock at some point and restore the TA so that my phone looks basically factory fresh. So I realised that I probably ought to back up my TA in case of any warranty issues. Which means I need to get my phone rooted before anything else. (I hope my assessment has been correct so far, it would be awesome if someone can verify the above paragraph)
Now this is where I am completely confused. I've attempted to use VRoot - and of course it does not support the .290 firmware.
Then I found out that it is possible to downgrade the firmware so that I can root and TA backup before bootloader unlock. This is the knowledge level I am up to. I have no idea which firmware to downgrade to or how to even actually perform a successful downgrade. (I've kinda gotten frustrated at the huge slab of info and I need some specific info from some users more experienced at this than I am at this point..)
I read how some people have flashed down to .534 and others have flashed down to .257. I would like to know exactly what steps I should take and which is the best firmware to downgrade to, just to do a root crack and TA backup. Can you even downgrade firmware without bootloader involved?
Basically the flow of what I need to do right now is this (I think):
1) Downgrade firmware to probably .534 from my current .290 (I need to flash the FTF using Flashtool, correct?)
2) Install Root with VRoot
3) TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta)
4) Upgrade back to .290 (Do I do this via OTA? I hope it is not difficult to do it via some command line tools if it comes to that..)
--- Above step also gets rid of most of Root access provided to the older firmware (this is what I've read.. Is this correct?)
5) Unlock bootloader (must do this in version .290 to avoid the camera bug), via guide on Sony website
6) Go crazy with all the custom things I want to install - CWMRecovery, CM11, etc
7) ???
8) Profit
Can someone please tell me if the above list is the order I need to proceed with?
:good: Thanks for any help you guys can give me. I am truly frustrated by this 290 firmware version! And reading all the topics about people who bricked after attempting similar things without knowing exactly what they needed to do and which order to do it in..
tl;dr - On .290 firmware, I want to backup TA before I unlock bootloader, which firmware version do I downgrade to?
SleepinDevil said:
Alrighty some background info and where I'm at. I've got some dev (Android XML layout fixes) experience on a custom ROM on i9300 and I finally decided to upgrade my phone onto the beasty Xperia Z1.
My phone came factory shipped with .290. It's the C6903 model. I've been looking up videos and trying to find info about where to begin with getting my root, bootloader, cwm, and custom ROM install going. Then I found out about the TA partition and that even though my phone allows me to unlock the bootloader, it's a smart idea to first backup the TA partition before I unlock my bootloader via the $ony website. With the TA backed up I can revert my phone back to stock at some point and restore the TA so that my phone looks basically factory fresh. So I realised that I probably ought to back up my TA in case of any warranty issues. Which means I need to get my phone rooted before anything else. (I hope my assessment has been correct so far, it would be awesome if someone can verify the above paragraph)
Now this is where I am completely confused. I've attempted to use VRoot - and of course it does not support the .290 firmware.
Then I found out that it is possible to downgrade the firmware so that I can root and TA backup before bootloader unlock. This is the knowledge level I am up to. I have no idea which firmware to downgrade to or how to even actually perform a successful downgrade. (I've kinda gotten frustrated at the huge slab of info and I need some specific info from some users more experienced at this than I am at this point..)
I read how some people have flashed down to .534 and others have flashed down to .257. I would like to know exactly what steps I should take and which is the best firmware to downgrade to, just to do a root crack and TA backup. Can you even downgrade firmware without bootloader involved?
Basically the flow of what I need to do right now is this (I think):
1) Downgrade firmware to probably .534 from my current .290 (I need to flash the FTF using Flashtool, correct?)
2) Install Root with VRoot
3) TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598&highlight=ta)
4) Upgrade back to .290 (Do I do this via OTA? I hope it is not difficult to do it via some command line tools if it comes to that..)
--- Above step also gets rid of most of Root access provided to the older firmware (this is what I've read.. Is this correct?)
5) Unlock bootloader (must do this in version .290 to avoid the camera bug), via guide on Sony website
6) Go crazy with all the custom things I want to install - CWMRecovery, CM11, etc
7) ???
8) Profit
Can someone please tell me if the above list is the order I need to proceed with?
:good: Thanks for any help you guys can give me. I am truly frustrated by this 290 firmware version! And reading all the topics about people who bricked after attempting similar things without knowing exactly what they needed to do and which order to do it in..
tl;dr - On .290 firmware, I want to backup TA before I unlock bootloader, which firmware version do I downgrade to?
Click to expand...
Click to collapse
Yes, you need to downgrade to .534 and root before you can backup your TA
Here is a guide on how to achieve that
If you follow the video guide you will end up with rooted .290
Then backup you TA:
and go to Sony's website to unlock the bootloader. An unlocked bootloader will let you flash custom kernels to your phone and thus you will be able to use roms such as CM, AOSP etc.
NEXT TIME PLEASE READ BEFORE CREATING A NEW THREAD. THIS HAS BEEN COVERED 100's OF TIMES
in general you have to do these steps:
downgrade to an early firmware that can be rooted and root it.
then install dual recovery.
in dual recovery wipe your phone, flash rom, flash again superuser and again dual recovery.
power off phone.
power on and direct flash kernel,baseband, bootbundle. for this i would recommend using NUTs stripped FTF files. also from his site you get recovery and superuser/supersu.
you only loose TA when you unlock your bootloader. unlocking is only neccessary if you plan to flash a custom kernel too.
when you are on rooted firmware backup TA, you never know if you need it later.
a good step by step tutorial is iHackers 2.1 thread.
also be prepared that actually there is a chance to brick your device. many can be restored using Sony Update Service or by flashing a full stock FTF, but some devices need a new mainboard. things are a litte bit tricky at the moment
shem2409 said:
Yes, you need to downgrade to .534 and root before you can backup your TA
Here is a guide on how to achieve that
If you follow the video guide you will end up with rooted .290
Then backup you TA:
and go to Sony's website to unlock the bootloader. An unlocked bootloader will let you flash custom kernels to your phone and thus you will be able to use roms such as CM, AOSP etc.
NEXT TIME PLEASE READ BEFORE CREATING A NEW THREAD. THIS HAS BEEN COVERED 100's OF TIMES
Click to expand...
Click to collapse
When on 4.3 and I tried many time still can't downgraded to 534. How to do it? Thank!
Lukily my TA had been backup.
Send from GT-I9506 using Tapatalk
Devices: Samsung GT-I9506 and Sony Z1 C6903
timberwolf60 said:
When on 4.3 and I tried many time still can't downgraded to 534. How to do it? Thank!
Lukily my TA had been backup.
Send from GT-I9506 using Tapatalk
Devices: Samsung GT-I9506 and Sony Z1 C6903
Click to expand...
Click to collapse
Here is a video on how to use flashtool
The previous video that I have sent you shows you step by step how to do everything

[Q] Xperia V 9.2.A.199 Impossible to Root

Hello this is my first post , I am a newbe.....
I made several attempts to root my device but none of these works...
One click root
Root_with_Restore_by_Bin4ry_v33
DooMLoRD_Easy-Rooting-Toolkit_v18_perf-event-exploit
DooMLoRD_Easy-Rooting-Toolkit_v17_perf-event-exploit
DooMLoRD_Easy-Rooting-Toolkit_v14_perf-event-exploit
could you give me an help please ?
No easy method work for now. Only solution is downgrade to 4.1, root and flashing some rom based on .199 build. Or there is some script that should help you retain root with OTA upgrade, but you still need to downgrade to 4.1.
nlooooo said:
No easy method work for now. Only solution is downgrade to 4.1, root and flashing some rom based on .199 build. Or there is some script that should help you retain root with OTA upgrade, but you still need to downgrade to 4.1.
Click to expand...
Click to collapse
I am very grateful to you. you saved me from headache....
I would like to take advantage of your willingness to ask a few questions....
I have done a firmware backup using the SUS and Flashtool.
Bootloader is locked at this time on my V.
I would like to know if I can install cyanogenmod 11 and in the future I can back to previous original firmware "tft" using this Flashtool procedure ?
-how to install the newest Android 4.3 for Sony XPERIA V LT25
-paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool.
-open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok.
-turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button
-after few minutes all is done and your phone gets the new firmware
Installing CM11 Xperia V is automatically rooted ?
Back to previous original xperia firmware, using flashtol, remains something of CyanogenMod ? Device returns unrooted ?
Thank You
carminedev said:
I would like to take advantage of your willingness to ask a few questions....
I have done a firmware backup using the SUS and Flashtool.
Bootloader is locked at this time on my V.
I would like to know if I can install cyanogenmod 11 and in the future I can back to previous original firmware "tft" using this Flashtool procedure ?
-how to install the newest Android 4.3 for Sony XPERIA V LT25
-paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool.
-open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok.
-turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button
-after few minutes all is done and your phone gets the new firmware
Installing CM11 Xperia V is automatically rooted ?
Back to previous original xperia firmware, using flashtol, remains something of CyanogenMod ? Device returns unrooted ?
Thank You
Click to expand...
Click to collapse
First of all CM won't work with locked bootloader, and you can't install it using Flashtool. It contains Superuser app so it's rooted.
You can always flash your device with Flashtool using .ftf files to return it to stock firmware.
If you choose to unlock bootloder consider backing up TA partition of phone (there's a tool for that here but the phone has to be rooted http://forum.xda-developers.com/showthread.php?t=2292598) so you can restore your DRM keys later (if you return to stock firmware and you want to have Bravia engine and the rest of the stuff dependent on DRM).
nlooooo said:
First of all CM won't work with locked bootloader, and you can't install it using Flashtool. It contains Superuser app so it's rooted.
You can always flash your device with Flashtool using .ftf files to return it to stock firmware.
If you choose to unlock bootloder consider backing up TA partition of phone (there's a tool for that here but the phone has to be rooted http://forum.xda-developers.com/showthread.php?t=2292598) so you can restore your DRM keys later (if you return to stock firmware and you want to have Bravia engine and the rest of the stuff dependent on DRM).
Click to expand...
Click to collapse
yesterday unfortunately, I made confusion between ROOTING and UNLOOK BOOTLOOADER so I have unlocked bootloder using flashtool and the day after I have re-locked it. Have I lost sony DRM ?
I think no... becouse I don't make changes that affected device partition, is it correct ?
So I ve got to wait for better and simple method to root my device before make other experiment, what do you think about it ?
carminedev said:
yesterday unfortunately, I made confusion between ROOTING and UNLOOK BOOTLOOADER so I have unlocked bootloder using flashtool and the day after I have re-locked it. Have I lost sony DRM ?
I think no... becouse I don't make changes that affected device partition, is it correct ?
So I ve got to wait for better and simple method to root my device before make other experiment, what do you think about it ?
Click to expand...
Click to collapse
I think you lost it when you unlocked it cause TA partition got formated, it doesn't matter if you relock it afterwards.
nlooooo said:
I think you lost it when you unlocked it cause TA partition got formated, it doesn't matter if you relock it afterwards.
Click to expand...
Click to collapse
how can i verify if I lose DRM ?
carminedev said:
how can i verify if I lose DRM ?
Click to expand...
Click to collapse
Check if in the Album app if pictures change when using Bravia Engine; if you didn't back up your TA partition before unlocking, as far as I know, you lost your DRM keys forever, relocking won't change a thing.
Antiga Prime said:
Check if in the Album app if pictures change when using Bravia Engine; if you didn't back up your TA partition before unlocking, as far as I know, you lost your DRM keys forever, relocking won't change a thing.
Click to expand...
Click to collapse
CONFIRMED I lost DRM keys...
At this Point I decide to dance, I' ll downgrade to a version to root device by doomLord patch first. I found a post in which users explain how to install Bravia Engine 2 using PimpMyRom App. Finally I Will upgrade to Last Xperia firmware.... And I' ll do a big backup!!!
Are you according to me? You suggest to me something different?
I'd not worry much abt Bravia Engine. The pics appears slightly brighter, shadows are therefore a bit better, and the colours are a tiny whee little bit more vibrant. If I had to put it into a number the difference is somewhere below the 10 % mark %. You get better results by taking pictures properly in the first place.
carminedev said:
CONFIRMED I lost DRM keys...
At this Point I decide to dance, I' ll downgrade to a version to root device by doomLord patch first. I found a post in which users explain how to install Bravia Engine 2 using PimpMyRom App. Finally I Will upgrade to Last Xperia firmware.... And I' ll do a big backup!!!
Are you according to me? You suggest to me something different?
Click to expand...
Click to collapse
It would be better to unlock bootloader again and then root flashing some custom kernel.
Something like this:
http://forum.xda-developers.com/showthread.php?t=2647496
nlooooo said:
It would be better to unlock bootloader again and then root flashing some custom kernel.
Something like this:
http://forum.xda-developers.com/showthread.php?t=2647496
Click to expand...
Click to collapse
I Read the post... Could you guide me trought I don't understand how-to.... It's too difficult for me.
Do You suggest to me this procedure just to root my V, is it right ?
What do you think about this Way to install BE2?...
http://www.xperiaguide.com/2013/07/27/install-sony-bravia-engine-2-and-xloud-on-xperia-sslacrosiont/
carminedev said:
I Read the post... Could you guide me trought I don't understand how-to.... It's too difficult for me.
Do You suggest to me this procedure just to root my V, is it right ?
What do you think about this Way to install BE2?...
http://www.xperiaguide.com/2013/07/27/install-sony-bravia-engine-2-and-xloud-on-xperia-sslacrosiont/
Click to expand...
Click to collapse
Mate, if you don't understand what's written there than consider not to play much with your phone. It's still an expensive peace of hardware to get messed up.
nlooooo said:
Mate, if you don't understand what's written there than consider not to play much with your phone. It's still an expensive peace of hardware to get messed up.
Click to expand...
Click to collapse
I'm sorry for my bad English ....
I have not paid enough attention this morning as I read the post.
it would seem easier after reading the post a second time...
- I NEED -
SuperSU Install zip
Doomkernel v08 kernel.elf file
" ATTENTION Doomkernel v08 is for xperia T while Doomkernel v07 for xperia V according to the post : forum.xda-developers.com - Doomkernel v07 for xperia V & require stock JellyBean FW (9.1.A.1.140) "
Sony stock 4.3 kernel, attached to the post.
Flashtool to Unlock Boot Loader
Fastboot mode -> Holding down the power and volume up
A brain and common sense.
1) by FLASHTOOL -> install the stock Android 4.3 FTF*
2) by FLASHTOOL -> fastboot mode and install the v08 Doomkernel kernel.elf
3) by FLASHTOOL -> upon boot, go into recovery**, and install the zip SuperSU normally
4) by FLASHTOOL -> fastboot mode install the provided stock Sony 4.3 Kernel
5) Unplug your phone, boot it, and there you go, rooted stock Android 4.3.
* Which version of latest stock rom do you suggest for my V :
- the first that I downloaded from xperiafirmware.com 9.2.A.1.199.
- the second created (after installation of the first) with Sony Update Service SUS , decrypted by Flashtool and saved into .tft format ?
** ..."go into recovery" is automated upon boot ?
At the end can I lock the boot loader to recive pc companion updates ?
carminedev said:
I'm sorry for my bad English ....
I have not paid enough attention this morning as I read the post.
it would seem easier after reading the post a second time...
- I NEED -
SuperSU Install zip
Doomkernel v08 kernel.elf file
" ATTENTION Doomkernel v08 is for xperia T while Doomkernel v07 for xperia V according to the post : forum.xda-developers.com - Doomkernel v07 for xperia V & require stock JellyBean FW (9.1.A.1.140) "
Sony stock 4.3 kernel, attached to the post.
Flashtool to Unlock Boot Loader
Fastboot mode -> Holding down the power and volume up
A brain and common sense.
1) by FLASHTOOL -> install the stock Android 4.3 FTF*
2) by FLASHTOOL -> fastboot mode and install the v08 Doomkernel kernel.elf
3) by FLASHTOOL -> upon boot, go into recovery**, and install the zip SuperSU normally
4) by FLASHTOOL -> fastboot mode install the provided stock Sony 4.3 Kernel
5) Unplug your phone, boot it, and there you go, rooted stock Android 4.3.
* Which version of latest stock rom do you suggest for my V :
- the first that I downloaded from xperiafirmware.com 9.2.A.1.199.
- the second created (after installation of the first) with Sony Update Service SUS , decrypted by Flashtool and saved into .tft format ?
** ..."go into recovery" is automated upon boot ?
At the end can I lock the boot loader to recive pc companion updates ?
Click to expand...
Click to collapse
Lock bootloader and you should be able to apply official updates.
nlooooo said:
Lock bootloader and you should be able to apply official updates.
Click to expand...
Click to collapse
The kernel are different and 07 version require Android 4.1....
I wrote ATTENTION between " " ADDING THE PROBLEM....
carminedev said:
The kernel are different and 07 version require Android 4.1....
I wrote ATTENTION between " " ADDING THE PROBLEM....
Click to expand...
Click to collapse
Doomkernel v8 is also for 4.1.2. As far as I understood you don't have to power on your phone completely in step 3, only to boot to recovery.
nlooooo said:
Doomkernel v8 is also for 4.1.2. As far as I understood you don't have to power on your phone completely in step 3, only to boot to recovery.
Click to expand...
Click to collapse
but my V is JB 4.3 9.2.A.1.199
carminedev said:
but my V is JB 4.3 9.2.A.1.199
Click to expand...
Click to collapse
You just use exploitability of custom kernel with recovery inside.
Take a look here also:
http://forum.xda-developers.com/showthread.php?t=2654451

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