Hello to the forum!
I'm still interested in rooting my Sony Xperia Z5 compact (it runs Android "Marshmallow" 6.0.1). Yesterday I read about two new vulnerabilities from which root access may be possible:
CVE-2016-2059 "Linux IPC router binding any port as a control port"
CVE-2016-2504 "Use after free due to race conditions in KGSL module"
These vulnerabilities seem to affect all devices equipped with Qualcomp chipsets and reside in the drivers for those - if I've got the descriptions right (and my Sony Xperia Z5 compact with its Android 6.0.1 is vulnerable to them).
Because I'm not a programmer or experienced lets say "security tester" [emoji6] (to avoid the word "hacker"), I ask those "rooting heros" and "rooting popes" if it is possible to exploit these vulnerabilities so that a root can be done without unlocking the boot loader and therefore preserving DRM and other exclusive hihlight of that smartphone?
Regards from Germany
"klausstoertebeker"
root can be done without unlocking the boot loader
Click to expand...
Click to collapse
To the best of my knowledge, no. See FAQ #1
Before this tool was developed, indeed rooting means losing your DRM. However, with that tool, you can backup your DRM, so the concern with unlocking the bootloader for root is now moot.
hi all,
if I root my phone, what I will lose apart from camera?
Is there any working camera for rooted devices? Whatsapp camera/Instagram camera will work?
I've bought this phone just to root it and I figured out I can't
thx
Everything is already wrote down
Just look through the forum and you will find everything
Just a hint: there are tutorials how to restore all Sony features
Caffeineshock said:
Everything is already wrote down
Just look through the forum and you will find everything
Just a hint: there are tutorials how to restore all Sony features
Click to expand...
Click to collapse
Hello, I'm sorry for my redundant question.
My only biggest fear is that developers stops supporting drm fix so when a new update become available, people who rooted their phone will be stuck with old software version.
I don't know if this ever happened, since it is my first sony device.
So if anyone could report their experience with drm fix support over time it will be great
However, I found a tool over here called xperifix. I may give it a try
If you have doubts about rooting your phone it certainly means that you shouldn't do it. Otherwise if you want to do so that bad just stop updating your phone when support stops.
Kwoon said:
Hello, I'm sorry for my redundant question.
My only biggest fear is that developers stops supporting drm fix so when a new update become available, people who rooted their phone will be stuck with old software version.
I don't know if this ever happened, since it is my first sony device.
So if anyone could report their experience with drm fix support over time it will be great
However, I found a tool over here called xperifix. I may give it a try
Click to expand...
Click to collapse
You don't lose anything using xperifix or Jan Jan kernel. I don't think we lost support so easily, Xperia Z2 was supported until latest stock firmware, XZ is still being supported on last current firmware. But like nick0s23 said, if you have fear.. Think it twice.
Hi,
Is there no "2019" non invasive method of rooting the Sony Xperia Z4 Tablet - SGP771 without deleting all the data? For example other phones with Magisk or KingRoot are done with just a few steps and then they are rooted.
What I´ve read about SGP771 seems very complicated
Sorry for bothering!
_TTTT_ said:
Hi,
Is there no "2019" non invasive method of rooting the Sony Xperia Z4 Tablet - SGP771 without deleting all the data? For example other phones with Magisk or KingRoot are done with just a few steps and then they are rooted.
What I´ve read about SGP771 seems very complicated
Sorry for bothering!
Click to expand...
Click to collapse
As far as i know, with the implementation of dm-verity, it's not possible to have root privileges without unlocking bootloader on firmwares starting from Android Nougat.
hello ive unlock bootloaders and rooted androids for a long time now. but i got a sony xperia xz about 3 years back i think. And i did not know about DRM keys.
what a pain to get that to work after wiping my DRM partition. after that i upgraded to the LG v30 plus and i've just been to scared to try anything. after the sony xz incident.
my questions are
1. Are the DRM keys different on LG?
2. Can you backup DRM keys
3. will i have the same problems like with my sony xz
AirysDark said:
hello ive unlock bootloaders and rooted androids for a long time now. but i got a sony xperia xz about 3 years back i think. And i did not know about DRM keys.
what a pain to get that to work after wiping my DRM partition. after that i upgraded to the LG v30 plus and i've just been to scared to try anything. after the sony xz incident.
my questions are
1. Are the DRM keys different on LG?
2. Can you backup DRM keys
3. will i have the same problems like with my sony xz
Click to expand...
Click to collapse
This isn't a Sony. Your questions are irrelevant for LG V30. In fact that's stated at the very beginning of the WTF INSTRUCTIONS. (See attached screenshot.)
Unlocking bootloader and rooting does not degrade any functionality whatsoever. In fact it increases functionality. For instance, LG gave the V30 DTS 3D Stereo libs in latter Oreo and Pie -- but you need root to enable that.
This is thread you want:
ROOT Your LG V30!
https://forum.xda-developers.com/lg-v30/how-to/root-v30-t3927154
Especially read post #1 of that thread. It will probably direct you to WTF Instruction, but just in case you have the ONE LG V30+ which needs alternate method, you need to read that post.
ChazzMatt said:
This isn't a Sony. Your questions are irrelevant for LG V30. In fact that's stated at the very beginning of the WTF INSTRUCTIONS.
Unlocking bootloader and rooting does not degrade any functionality whatsoever in fact it increases functionality.
Click to expand...
Click to collapse
thanks ive been doing alot of reading. think i mite do it.
Hello anyone, I am the new comer of the XDA. Nice to meet you here. Let move on to my questions.
I have a HK version Xperia 1 III(XQ-BC72), and I love the device.
However after I received and upgraded to Android 12(61.1.A.1.149), the nightmare comes.
There are bugs on Android 12 and I does not like the UI and some of UI interaction logic.
It makes me so upset and very regret it.
So that I have an idea to downgrade the firmware from Android 12(61.1.A.1.149) to Android 11(61.0.A.23.20).
I already seen the "How to Guide" to know how to unlock and relock the bootloader, and flashing the firmware so on.
But I still some question here. Hope someone can answer...
1. DRM things
While unlock the bootloader, DRM will gone.
But relock the bootloader and using Xperia Companion to repair, most of the DRM may come back that I know.
However, using Xperia Companion to repair will update to latest firmware.
So, is there anyway to get back the DRM without using Xperia Companion?
(Or, does Xperia Companion repair is the only way can get back some of DRM keys?)
It is good if the DRM key can back.
2. Exclusive Functions
Does unlock and relock the bootloader will cause some function loss?
The Xperia smartphone have a Trim Area(TA) that I know. If the TA is missing, some functions will be loss.
I know Xperia 2021 device does not have hardware function loss after unlock. But how about the exclusive function such as Dolby, DSEE, Creator display mode?
I does not want there are any function loss, include exclusive function.
I know unlock the device may void my warranty, so on I will not unlock my device and take this action before my warranty is over.
Even through I does not have a plan to start it yet, but It is still good to know everything before get started.
Hope someone can answer the question, thanks.
You do realize that if you "downgrade" that you will no longer receive OTA security updates?
Best thing to do is get used to 12. Learn it and after a few days you will not even notice the difference.
Either that or try and find a custom ROM that will receive updates like LineageOS.
15 Best Custom ROMs for Android You Can Install
Looking for the best Android custom ROMs based on Android 10, 11, 12, or 13? Here are 15 best custom ROMs for Android you can use in 2023.
beebom.com
jaseman said:
You do realize that if you "downgrade" that you will no longer receive OTA security updates?
Best thing to do is get used to 12. Learn it and after a few days you will not even notice the difference.
Either that or try and find a custom ROM that will receive updates like LineageOS.
15 Best Custom ROMs for Android You Can Install
Looking for the best Android custom ROMs based on Android 10, 11, 12, or 13? Here are 15 best custom ROMs for Android you can use in 2023.
beebom.com
Click to expand...
Click to collapse
Android 12 on xperia have some big issue, for example the latest android 12 version on Xperia 1 II will never play 4k HDR video. If it's only about the UI i agree with you but right now there are same broken features
JaxkyYeung said:
Hello anyone, I am the new comer of the XDA. Nice to meet you here. Let move on to my questions.
I have a HK version Xperia 1 III(XQ-BC72), and I love the device.
However after I received and upgraded to Android 12(61.1.A.1.149), the nightmare comes.
There are bugs on Android 12 and I does not like the UI and some of UI interaction logic.
It makes me so upset and very regret it.
So that I have an idea to downgrade the firmware from Android 12(61.1.A.1.149) to Android 11(61.0.A.23.20).
I already seen the "How to Guide" to know how to unlock and relock the bootloader, and flashing the firmware so on.
But I still some question here. Hope someone can answer...
1. DRM things
While unlock the bootloader, DRM will gone.
But relock the bootloader and using Xperia Companion to repair, most of the DRM may come back that I know.
However, using Xperia Companion to repair will update to latest firmware.
So, is there anyway to get back the DRM without using Xperia Companion?
(Or, does Xperia Companion repair is the only way can get back some of DRM keys?)
It is good if the DRM key can back.
2. Exclusive Functions
Does unlock and relock the bootloader will cause some function loss?
The Xperia smartphone have a Trim Area(TA) that I know. If the TA is missing, some functions will be loss.
I know Xperia 2021 device does not have hardware function loss after unlock. But how about the exclusive function such as Dolby, DSEE, Creator display mode?
I does not want there are any function loss, include exclusive function.
I know unlock the device may void my warranty, so on I will not unlock my device and take this action before my warranty is over.
Even through I does not have a plan to start it yet, but It is still good to know everything before get started.
Hope someone can answer the question, thanks.
Click to expand...
Click to collapse
I hope i'm not saying a wrong thing but with newflasher you can flash any official firmware (even older) without unlocking bootloader
jaseman said:
You do realize that if you "downgrade" that you will no longer receive OTA security updates?
Best thing to do is get used to 12. Learn it and after a few days you will not even notice the difference.
Either that or try and find a custom ROM that will receive updates like LineageOS.
15 Best Custom ROMs for Android You Can Install
Looking for the best Android custom ROMs based on Android 10, 11, 12, or 13? Here are 15 best custom ROMs for Android you can use in 2023.
beebom.com
Click to expand...
Click to collapse
I know what I am doing here, that why I am asking for it.
I love stock Android and Sony function so that I choose Xperia.
If Android 12 is a great update, I don't mind it, even I can continue to stay in Android 12.
Android 12 changes some UI logic and UI design, I can try and learn with no problem.
But Android 12 is very buggy, it such a pain. That even worse than Android 11.
That is the main reason that I want to rollback my device system to Android 11.
Evil_Sephiroth said:
I hope i'm not saying a wrong thing but with newflasher you can flash any official firmware (even older) without unlocking bootloader
Click to expand...
Click to collapse
Nope, I tried to flash the older firmware without unlocking the bootloader.
But it failed, a bootloop appear. Because the Android Rollback Protection is here.
I just do some research here, it need to unlock the bootloader to reset the vbmeta rollback index to 0 for flashing older firmware.
Seem unlock the bootloader is the major step to downgrade the system.
JaxkyYeung said:
1. DRM things
While unlock the bootloader, DRM will gone.
But relock the bootloader and using Xperia Companion to repair, most of the DRM may come back that I know.
However, using Xperia Companion to repair will update to latest firmware.
So, is there anyway to get back the DRM without using Xperia Companion?
(Or, does Xperia Companion repair is the only way can get back some of DRM keys?)
It is good if the DRM key can back.
Click to expand...
Click to collapse
This is exactly what I would like to know as well. Is there a way to downgrade, then re-lock the bootloader and get the DRM restored as described here while keeping the old version?
Xperia 1 - DRM keys back after locking the bootloader ?
Hello, I just have a question, my Xperia 1 was unlocked and rooted (magisk) on Android 10. Yesterday, I decided to lock the bootloader, everything was erased from the phone after that. The new Android installation was buggy so I tried to...
forum.xda-developers.com