When I bought my ZU 6802 it was on 257 then I OTA to 290 then 681.
my goal is to get root access only I also want my DRM key intact.
Here is what I plan to do with the ZU.
1.Downgrade to 532, root it without unlock the bootloader, then back up my TA petition.
2.OTA upgrade from 532-257-290-681(will I still be able to? I already took the OTAs Do I need to unroot first?)
3.After back to .681, I will unlock bootloader, then use jackie099's method to root it.
4.Relock bootloader, restore my TA petition.
Does that sound like a plan?
Two things I worry.
1. I am not sure if I can take the OTA update back to .681 after downgrade to .532,
2. What will happen after I relock the bootloader, will I lose root? Jackie099's rooting method has dual recovery, it uses kernel from 6833, my ZU is 6802, my guess is after I relock the bootloader, dual recovery will be lost or null, and I will still have root access.
Any advises will be appreciated.
Related
Hello,
I'm in need of some clarification regarding TA backup. After reading several threads I came to the conclution that it's best to backup TA before unlocking bootloader and so on. Current build is 257 without any modifications made.
Since I can't backup TA without root and cannot root without flashing from 257 to 532, is it possible to flash 532, root, backup TA, then flash back to 257 and restore TA backup? I'd imagine that they have information about my phone being 257 when it was shipped and refuse to repair the phone.
Did some searching and couldn't find an answer to this.
Guides I've had a look at:
Flashtool guide.
How to root 14.1.B.2.257 using OTA
You won't lose your TA, so you can downgrade and root as much as you want. The only way you'll lose your TA is if you unlock your bootloader, which you don't need to do when you just want to root. You'll have to unlock it if you want to flash CM, PAC or other custom ROMs.
Downgrade to 532, root, backup TA (just so you have it), update through OTA to 257 and you're done.
Sent from my C6833 using Tapatalk
LordManhattan said:
You won't lose your TA, so you can downgrade and root as much as you want. The only way you'll lose your TA is if you unlock your bootloader, which you don't need to do when you just want to root. You'll have to unlock it if you want to flash CM, PAC or other custom ROMs.
Downgrade to 532, root, backup TA (just so you have it), update through OTA to 257 and you're done.
Sent from my C6833 using Tapatalk
Click to expand...
Click to collapse
Excellent! Thank you for the clarification. TA has nothing to do with the build then?
Also, is there any disadvantages to this when it can be restored to original state with the backup? Thinking about unlocking bootloader etc later.
Correct, your TA folder has your Ultra's unique DRM keys etc. and it's tied to your device itself and not the ROM, so you can go ahead and flash stock ROMs as much as you want without worrying about it.
And no, there are no real disadvantages to it. The only thing that will be changed after unlocking it is that X-Reality will no longer work, but it'll be back to normal once you restore your TA and relock the bootloader.
Sent from my C6833 using Tapatalk
Hello dear XDA Community,
- Xperia Z Ultra
- 4.4.2
- 14.3.A.0.681
- C6833
I have a big problem with understanding all of this tutorials. I read everything about rooting and unlocking the Bootloader.
I understood that I need to backup my TA Partition for Unlocking my Bootloader so I can continue to use Sony technology.
Requirements ? Root. Okay that was my first problem. So i looked up how to root my phone and what do i need ? A phone with a unlocked bootloader. great! Sure you can say "look at this topic and carefully read" but I really did that and I am really helpless. Thanks for any help!
What did I read ?
- http://forum.xda-developers.com/showthread.php?t=2292598&nocache=1 (requires root)
- http://forum.xda-developers.com/showthread.php?t=2569904 (requires unlocked bootloader)
- watched severel youtube videos and encountered the same problem
Greets
tr0teK
When your bootloader is unlocked, you can never use X-Reality and any other item which requires the DRM in the Trim Area partition,
Restoring the TA partition without relocking the bootloader will not result in the return of X-Reality and such even if you are using a Sony ROM. This situation appears to have changed since the release of 4.4.
Backing up the TA partition is only good for relocking the bootloader on a Stock ROM (any custom AOSP, CM, AOSPA etc will fail to boot on a locked bootloader), for personal choice or returning the phone under warranty.
You can unlock the bootloader when not rooted, in fact you don't do it with the phone running normally anyway so root or not rooted, it does not matter in that sense.
You don't need to unlock the bootloader to root, if you are willing to re-set up your phone again. What you need to do is downgrade to 4.2, which is rootable, root, install recovery and flash the 681 pre-rooted zip, and use flashtool to flash the associated ftf file to get rooted on 681.
Follow the instructions in Lord Manhattan's thread that you linked to,in order to downgrade and install a recovery, then visit the following link to get the zip & ftf to re-up to 4.4 (681). You most likely will lose cellular connectivity whilst you are downgraded (there is a way around this, but as you are only going down to 4.2 to get a recovery, maintaining your IMEI for that short period of time is just a waste of effort), but it will return when you are back on 681 (4.4).
http://forum.xda-developers.com/showthread.php?t=2687848
- Downgrade to 532
- Root it using Bin4ry's tool
- Backup the TA partition
- Unlock bootloader
- Either update to 681 again and take it from there or flash a kernel with recovery/TWRP and flash a pre-rooted 681. It's easy to root 681, so whatever floats your boat.
Don't mean to hijack this topic but I don't want to open another thread,
if I back up the TA partition, unlock bootloader, root the phone, then relock bootloader, then restore TA partition to bring back the xreality,
I am not going to install custom recovery and Roms.
Thanks for the Informations. I will give it a try the next days and report you if it worked.
coolmingli said:
Don't mean to hijack this topic but I don't want to open another thread,
if I back up the TA partition, unlock bootloader, root the phone, then relock bootloader, then restore TA partition to bring back the xreality,
I am not going to install custom recovery and Roms.
Click to expand...
Click to collapse
Technically it'll work, but i have never done it before. Everything should go smoothly until you're going to re-lock the bootloader. You can't re-lock it on a custom kernel, and you'll be on a custom kernel once you flash Jackie's kernel with recovery, so you'll have to flash a complete stock kernel, then restore the TA partition with the TA Backup Tool, which will also automatically re-lock the bootloader. You should in theory end up with a complete stock ROM with root. That's on paper.
Worst case scenario? If you re-lock the bootloader while you're on a custom kernel, it'll explode it won't power on at all, and all you'll get is a blinking red LED and death. To fix this, just unlock the bootloader in Flashtool again and you're back to start again. It's not dangerous, but it's nerve wrecking to see it there, just blinking without any sign of life. I almost crapped my pants the first time i experienced it, and had no clue what was happening or what to do.
LordManhattan said:
Technically it'll work, but i have never done it before. Everything should go smoothly until you're going to re-lock the bootloader. You can't re-lock it on a custom kernel, and you'll be on a custom kernel once you flash Jackie's kernel with recovery, so you'll have to flash a complete stock kernel, then restore the TA partition with the TA Backup Tool, which will also automatically re-lock the bootloader. You should in theory end up with a complete stock ROM with root. That's on paper.
Worst case scenario? If you re-lock the bootloader while you're on a custom kernel, it'll explode it won't power on at all, and all you'll get is a blinking red LED and death. To fix this, just unlock the bootloader in Flashtool again and you're back to start again. It's not dangerous, but it's nerve wrecking to see it there, just blinking without any sign of life. I almost crapped my pants the first time i experienced it, and had no clue what was happening or what to do.
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Click to collapse
Thanks for the reply, I think I will ditch rooting from this phone, too much troubles, I don't understand why Sony put the DRM key in a trim partition, perhaps they don't want us to root the phone after all.
I did it guys. It worked!
My steps:
- Downgraded to 4.2.2 with Flashtool (.532)
- Rooted with Bin4ry's tool
- Installed CWM and TWRP Dual Recovery for Xperia Z locked Bootloader by krabappe12548
- Flashed to 4.4.2[rooted] (http://forum.xda-developers.com/showthread.php?t=2687848)
Now I have the newest version with Root Access. Everything works great
Greets
tr0teK
tr0teK said:
I did it guys. It worked!
My steps:
- Downgraded to 4.2.2 with Flashtool (.532)
- Rooted with Bin4ry's tool
- Installed CWM and TWRP Dual Recovery for Xperia Z locked Bootloader by krabappe12548
- Flashed to 4.4.2[rooted] (http://forum.xda-developers.com/showthread.php?t=2687848)
Now I have the newest version with Root Access. Everything works great
Greets
tr0teK
Click to expand...
Click to collapse
is this witout unlock the bootloader?
MjsNL said:
is this witout unlock the bootloader?
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Click to collapse
Yep, that will work well on a locked BL
If you are only downgrading to flash the current rooted firmware, you don't even need to root 532, as [nut]'s dual recovery can be installed by the same method that bin4ry's root is delivered, just install the recovery, flash the zip, flash the ftf and away you go
Hey guys,
I own a stock Xperia Z3 Tablet LET (SGP621) and I have never upgraded it, still running stock 4.4.4.
I want to root it and only root (to Lolipop). I have read topics but there are so many and written in strange language for me I have no idea where to start.
I read I could just flash prerooted ROM without even touching my drm keys, right? But then I was not sure how could I do it.
Any help would be appreciated.
Thanks!
There is no method to root the tablet without unlocking the bootloader. The root exploit which most of the guys mentioning in these strangely written topics (giefroot, easy root tool, geohot, blablabla...) is useless now since Sony surely patched it. So to root, you have to unlock the bootloader. But wait, you would loose the DRM keys.
So, it means that you need to make a backup.
But, without root you can't backup.
But, how should you root if you don't have an unlocked bootloader??? And it goes on and on and on and on....
The "trick" is to flash a firmware from another device (not z3 tablet compact) that can be rooted via the exploit. But nobody wanta to use the "other" firmware to gain root. This "other" firmware is only used to gain root temporary so you can backup the drm keys.
Then you likely have to flash back the stock firmware (and root will be lost again).
Now that you backed up the drm keys, you are ready to unlock the bootloader and let the drm keys disappear for a while.
And then you still have to do some complex steps to achieve root on your stock firmware, then restore drm keys (bootloader locks up itself again...), blablabla
TL;DR forget rooting this device unless you are ready to do all these above steps. If you don't understand the steps and are new to rooting sony devices, I recommend you not to root and enjoy the stock firmware. Next thing is that lollipop will come and you could easily update without problems (via OTA). Until then, wait for some magicians/hackers/crackers find a new exploit which can root 2015 sony devices without unlocking the bootloader.
If you want to know if your device (firmware) can be rooted via exploit, try xdualrecovery. It contains the exploit root method. But if you are unsuccessful flashing xdualrecovery, that is because the exploit doesn't work and your firmware is patched.
Sadly, sony devices are nothing like nexus. And including this "afraid of loosing the drm keys", simply unlocking the bootloader might not be a pleasing thing to do.
just to add maybe we don't need to unlock bootloader to root our tablet
we temporarely flash z3 kitkat system to get a rootable core and we flash again z3 tablet compact system before reboot
or so I understood
ChiDi9901 said:
There is no method to root the tablet without unlocking the bootloader (false, there is a method detailed in this thread). The root exploit which most of the guys mentioning in these strangely written topics (giefroot, easy root tool, geohot, blablabla...) is useless now since Sony surely patched it. So to root, you have to unlock the bootloader. But wait, you would loose the DRM keys.
So, it means that you need to make a backup.
But, without root you can't backup.
But, how should you root if you don't have an unlocked bootloader??? And it goes on and on and on and on....
The "trick" is to flash a firmware from another device (not z3 tablet compact) that can be rooted via the exploit. But nobody wanta to use the "other" firmware to gain root. This "other" firmware is only used to gain root temporary so you can backup the drm keys (false, the other firmware is used to gain root and then install a custom recovery, so you can flash a prerooted and updated lollipop firmware based on official Xperia Z3 Tablet Compact firmware).
Click to expand...
Click to collapse
I would advise not to answer questions about root without understanding the process and/or misguiding people asking for help.
The information you give above is wrong. You don't need to unlock your bootloader provided you downgrade to an explotable firmware.
The thread that details how to root your Xperia Z3 Tablet Compact is this one:
http://forum.xda-developers.com/z3-...to-rooted-lollipop-locked-bootloader-t3083980
1. Obtain root by first flashing SGP621_23.0.1.A.0.167_CE.ftf and the system partition of D6603_23.0.A.2.93_Generic_20GLOBAL.ftf. Then use giefroot to root.
2. Prepare prerooted flashable zip of 23.1.A.0.690 NOBA on your internal storage or external SD.
3. Install XZDualRecovery and now you will have TWRP to install 23.1.A.0.690 NOBA on your SD card.
You may ask any doubts in that thread.
BarajaVLC said:
I would advise not to answer questions about root without understanding the process and/or misguiding people asking for help.
The information you give above is wrong. You don't need to unlock your bootloader provided you downgrade to an explotable firmware.
The thread that details how to root your Xperia Z3 Tablet Compact is this one:
http://forum.xda-developers.com/z3-...to-rooted-lollipop-locked-bootloader-t3083980
1. Obtain root by first flashing SGP621_23.0.1.A.0.167_CE.ftf and the system partition of D6603_23.0.A.2.93_Generic_20GLOBAL.ftf. Then use giefroot to root.
2. Prepare prerooted flashable zip of 23.1.A.0.690 NOBA on your internal storage or external SD.
3. Install XZDualRecovery and now you will have TWRP to install 23.1.A.0.690 NOBA on your SD card.
You may ask any doubts in that thread.
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Click to collapse
Well, the OP (junior member) mentioned "strange languages". So he/she might not understand all this complex steps. That's why I "let it be" to keep the things easy. If he/she understands these steps then it's good for him/she. But you're right, I lied. And thanks for the clarification and pointing out my wrong information.
Personally, I had every Xperia unlocked without backing up the DRM keys. I never had any disadvantage. I was, however, a little reluctant with the XT3C. That's because I use it as both my phone and tablet.
Still, did it now. No adverse effects. Root is SO much more important than the Bravia engine or whatever. And the camera isn't very good anyway so I don't miss the 'better' quality. It's bad either way
So I wrote a tutorial on the whole unlock bootloader, exploit, backup TA, root, DRM sign and flash back in April but now that the OTA is annoying me I'm not sure how to proceed.
Anyone had any luck with the OTA and keeping root or did you have to root, re-sign for DRM and re-flash using FlashTool ?
So read this thread [Guide] Safe bootloader unlock, restore DRM, custom recovery, root, bootloader relock
Is this the easiest way to root as it appears complex(sorry not very technically minded).
Also once rooted will I be able to update the tablet or it becomes impossible please?
marvi0 said:
So read this thread [Guide] Safe bootloader unlock, restore DRM, custom recovery, root, bootloader relock
Is this the easiest way to root as it appears complex(sorry not very technically minded).
Also once rooted will I be able to update the tablet or it becomes impossible please?
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Click to collapse
No, easiest way to root is to unlock bootloadrer and flash custom rom or root stock by flashing twrp, kernel, and supersu.
You need drm keys in case if you want to get back unrooted stock.so do you really need them? In order to restore drm functionality on rooted device, use universal drm restore patch.
With unlocked bootloder, to update custom, use twrp, to update stock, use flashtool.
alex009988 said:
No, easiest way to root is to unlock bootloadrer and flash custom rom or root stock by flashing twrp, kernel, and supersu.
You need drm keys in case if you want to get back unrooted stock.so do you really need them? In order to restore drm functionality on rooted device, use universal drm restore patch.
With unlocked bootloder, to update custom, use twrp, to update stock, use flashtool.
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Click to collapse
Hello many thanks, did you follow the same guide I quoted in my initial post?