[Q] Anybody work on Root?

[alisandrio]

Hi, the exploit has been ported to some Xperia phone (http://forum.xda-developers.com/crossdevice-dev/sony/root-how-to-root-5-0-lollipop-t3212108) but Z4 first firmware was already patch ....

Sadly (or fortunately by the point of view) Sony is one of the first manufacturer to patch these bugs... I saw that Z4 Tab is vulnerable to latest stagefright bug but there are two problems: first no code is published and second we would only get the posssibility to run code as "system", ergo we would need another privilege escalation exploit then.
Well, I'll just keep waiting for news...

 

[parental92]

I'm considering to get this tab, but the inability to root without unlocking the bootloader turns me off :s

Should we do a bounty like they did for xperia z3?

 

[AndroPlus]

I'm considering to get this tab, but the inability to root without unlocking the bootloader turns me off :s

Should we do a bounty like they did for xperia z3?

Don't waste your time and money on it.
To root without unlocking bootloader, breaking dm-verity is needed and it means all android are affected by the exploit, so small bounty won't encourage hackers.

 

[parental92]

Don't waste your time and money on it.
To root without unlocking bootloader, breaking dm-verity is needed and it means all android are affected by the exploit, so small bounty won't encourage hackers.

okay thanks for the suggestion.

since all i can do is follow a tutorial i cant really help at all with the development.
at first i thought i have the z3 and it has the ability to root with locked bootloader, and i thought why can't they do the same with z4 tablet? guess it is not that simple :crying:

i also tought we can backup the TA partition before we root, but damn we need root for TA partition backup

i will still get this tab anyway. is the amount of bloatware manageable ?

 

[AndroPlus]

i will still get this tab anyway. is the amount of bloatware manageable ?

Yes, depends on customization (I'm using UK).
You can even run "pm hide [package name]" in adb shell to disable non-deletable bloatwares.

 

[parental92]

Yes, depends on customization (I'm using UK).
You can even run "pm hide [package name]" in adb shell to disable non-deletable bloatwares.

I'll Google that.or I can do it on the settings app right? Besides I'll just use the thing to browse and watching videos a bit uni stuff here and there

 

[RJASSI21]

i heard that this tablet will get marshmallow in january next year will that make it easier to root since system mods arent needed with marshmallow i saw something on here about system modifications arent needed to root correct me if im wrong. just thought root on locked bl might be possible then

 

[ondrejvaroscak]

i heard that this tablet will get marshmallow in january next year will that make it easier to root since system mods arent needed with marshmallow i saw something on here about system modifications arent needed to root correct me if im wrong. just thought root on locked bl might be possible then

Systemless root still needs modified ramdisk image, so no root on locked BL.

 

[RJASSI21]

Systemless root still needs modified ramdisk image, so no root on locked BL.

does that mean this tab will never ever get root on locked bl?

 

[alex009988]

does that mean this tab will never ever get root on locked bl?

Or you have to wait really really long, but yes, it's very probably that it will be never released.
It's better to create good cyanogenmod rom or fake drm keys.. Personally, when I unlocked my tablet, noticed no change, the same as before.
dont turn your tablet into conformity with unjailbreakable iPad. I moved on android after apple went crazy, killing all ways for jailbreaking.
So, the choice is yours.

 

[ondrejvaroscak]

does that mean this tab will never ever get root on locked bl?

It is highly probable... The dm-verity has not been broken since it was introduced in KitKat.... And it provides excellent protection even if some sort of vulnerability is found in Android. Requirement to modify either system or ramdisk makes LB root very unlikely. More over, as Sony is balancing on edge of profitability with it's mobile division, the less devices around here will also mean less development. Look at Z3+/Z4 series, these are around some time and nothing could have been done. You either unlock, or stay stock unrooted. And the same applies to whole Sony range of Android M. It is almost 100% sure that Android M will use dm-verity.

 

[RJASSI21]

It is highly probable... The dm-verity has not been broken since it was introduced in KitKat.... And it provides excellent protection even if some sort of vulnerability is found in Android. Requirement to modify either system or ramdisk makes LB root very unlikely. More over, as Sony is balancing on edge of profitability with it's mobile division, the less devices around here will also mean less development. Look at Z3+/Z4 series, these are around some time and nothing could have been done. You either unlock, or stay stock unrooted. And the same applies to whole Sony range of Android M. It is almost 100% sure that Android M will use dm-verity.

Ok thanks for this im tempted to go back to z2 now lol the only reason im using z4 is because of keyboard and better screen but my z4 has wifi issues which is why I didnt exactly wanna unlock the bl. The WiFi disconnects from time to time which is annoying but recently its been fine but I know as soon as I unlock the bl its just gonna fail completely and ill have no warranty then im stuck with too many choices now and its quite annoying im sure ill figure something out thanks a lot anyway.

---------- Post added at 01:41 PM ---------- Previous post was at 01:37 PM ----------

Or you have to wait really really long, but yes, it's very probably that it will be never released.
It's better to create good cyanogenmod rom or fake drm keys.. Personally, when I unlocked my tablet, noticed no change, the same as before.
dont turn your tablet into conformity with unjailbreakable iPad. I moved on android after apple went crazy, killing all ways for jailbreaking.
So, the choice is yours.

What drm functions are lost when I unlock? R
I remember unlocking my Xperia z before I never lost bravia engine and lots of other functions it was pretty much the same is this the case with the z4 tab?

 

[alex009988]

The WiFi disconnects from time to time which is annoying but recently its been fine but I know as soon as I unlock the bl its just gonna fail completely and ill have no warranty then im stuck with too many choices now and its quite annoying im sure ill figure something out thanks a lot anyway.

---------- Post added at 01:41 PM ---------- Previous post was at 01:37 PM ----------



What drm functions are lost when I unlock? R
I remember unlocking my Xperia z before I never lost bravia engine and lots of other functions it was pretty much the same is this the case with the z4 tab?

Pal. I think you have problem with your router rather than with wifi on the tablet. As for me wifi works perfectly. About warantly, if it works it will work for years with probability 99.9999999%.
If you smash it through your fault, no warantly helps you.
About lost functions, I noticed nothing significant to take into consideration seriously.
You lose ota updates, my xperia, maybe something else what you never ever notice.
So, make your choice. But I recommend you to join our root community!)

 

[RJASSI21]

Pal. I think you have problem with your router rather than with wifi on the tablet. As for me wifi works perfectly. About warantly, if it works it will work for years with probability 99.9999999%.
If you smash it through your fault, no warantly helps you.
About lost functions, I noticed nothing significant to take into consideration seriously.
You lose ota updates, my xperia, maybe something else what you never ever notice.
So, make your choice. But I recommend you to join our root community!)

Ok thanks and I know ts not my router every other xperia and device never has a problem only z4 tablet also tried other routers same thing nevermind anyway if the device was replaced im sure it would work fine

 

[killdozer56]

But I recommend you to join our root community!)

I agree :good:
for my part I did not notice anything special regarding the lost of DRM keys. And I do not have playstation.
The wifi and LTE works fine.

 

[ondrejvaroscak]

I agree :good:
for my part I did not notice anything special regarding the lost of DRM keys. And I do not have playstation.
The wifi and LTE works fine.

Maybe Sony changed some things in later firmwares. On Z3 family the unlocking of bootloader and loss of DRM keys led inevitably to:

-unability to use X-Reality engine
-loss of noise cancellation
-and worst of all the noise reduction of pictures taken in low-light conditions. Given the fact that Z3 camera is not the best of class (what a shame that even Samsung with 13MP Sony chip makes better pictures), is a devastating combo.

 

[jelbo]

Maybe Sony changed some things in later firmwares. On Z3 family the unlocking of bootloader and loss of DRM keys led inevitably to:

-unability to use X-Reality engine
-loss of noise cancellation
-and worst of all the noise reduction of pictures taken in low-light conditions. Given the fact that Z3 camera is not the best of class (what a shame that even Samsung with 13MP Sony chip makes better pictures), is a devastating combo.

Things are still the same. For me, Losing X-Reality isn't an issue as I don't use that anyway. I'm still able to fine-tune the colors using apps that can do this using KCAL. Noise cancellation (I assume audio noise) and noise reduction are also not an issue - I don't use headphones or take pictures with the Z4 Tablet.

 

[ondrejvaroscak]

Things are still the same. For me, Losing X-Reality isn't an issue as I don't use that anyway. I'm still able to fine-tune the colors using apps that can do this using KCAL. Noise cancellation (I assume audio noise) and noise reduction are also not an issue - I don't use headphones or take pictures with the Z4 Tablet.

Still, what is not issue for you, can be issue for someone else.

 

[Electronic Punk]

More over, as Sony is balancing on edge of profitability with it's mobile division, the less devices around here will also mean less development.

See thats an interesting argument.
If the device was more open and there was no downside to rooting more would do it and there would be more development.

This is the first device I haven't rooted on the day I received it purely because I don't know if I will lose something I can't get back.

Fingers crossed the big MM update changes things up, having an M9 I can tell you Android 6.0 is a huge deal for the Snapdragon 810, really fires those cores up.

 

[ondrejvaroscak]

See thats an interesting argument.
If the device was more open and there was no downside to rooting more would do it and there would be more development.

This is the first device I haven't rooted on the day I received it purely because I don't know if I will lose something I can't get back.

Fingers crossed the big MM update changes things up, having an M9 I can tell you Android 6.0 is a huge deal for the Snapdragon 810, really fires those cores up.

I have been testing Concept on Z3, so believe me MM is a huge deal also on 801.

The more development available does not pay companies like Sony. 95% customers don give a **** about open system, they will be more tempting to believe in "security" features when "confronted" with the ugliness of Internet, mal- and ransomware. The most successful vendor Apple is not open at all, second largest Samsung with its KNOX is merely the only other profitable manufaturer... The others are in red numbers and "open" devices like Nexus or some start-ups are just of null importance. We will (and in future more likely) face the difference in perception of mobile phone as complete system with its ecosystem, and mobile phone as computing device. The only question is to find a manufacturer that will have open source available for all components of the system and will not unnecessarily block the device. But such devices will be rare and priced premium on top of high-end models.