I'm going to buy an used Xperia Z2 and I want that the software be untouched have drm keys etc. How can i check it or how can I check that the phone have the drm keys,bootloader was always locked? I really need bionz etc. Thanks for the answers.
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hi, i am totally new to rooting. my phone is sony Xperia Mk16i with rooting status - Bootloader unlock status: Yes. the ROM is factory installed 2.3.4.
i was checking this forum and noticed the test point method of rooting which allows to maintain the DRM keys. i do not purchase any songs or videos online neither do i use the trackID app of my phone. is there any other reason to save the DRM keys other than the ones mentioned?
i noticed a thread in another forum where someone was complaining about not being able to use camera after rooting without saving the DRM keys.
i would also like to know if there is any method of rooting the phone without unlocking the bootloader. the main reason i want to root my phone is to increase its internal memory and be able to use the USB OTG option in my phone which is locked.
i am trying this after expiry of the warranty period and seriously can't afford to brick my phone.
any help or answers will be much appreciated.
thank you
austicorn said:
hi, i am totally new to rooting. my phone is sony Xperia Mk16i with rooting status - Bootloader unlock status: Yes. the ROM is factory installed 2.3.4.
i was checking this forum and noticed the test point method of rooting which allows to maintain the DRM keys. i do not purchase any songs or videos online neither do i use the trackID app of my phone. is there any other reason to save the DRM keys other than the ones mentioned?
i noticed a thread in another forum where someone was complaining about not being able to use camera after rooting without saving the DRM keys.
i would also like to know if there is any method of rooting the phone without unlocking the bootloader. the main reason i want to root my phone is to increase its internal memory and be able to use the USB OTG option in my phone which is locked.
i am trying this after expiry of the warranty period and seriously can't afford to brick my phone.
any help or answers will be much appreciated.
thank you
Click to expand...
Click to collapse
Yes... Rooting can be done without unlocking bootloader...try the eroot thread...
Sent from my Xperia Neo V using Tapatalk 2
Hi
Please help to restore TA (DRM). I had not backed it up. How can i restore it? And on what does effect missing drm keys?
If you didn't backup your TA partition there is no way to get back your DRM keys.
The keys affect certain proprietary software, like sonys bravia engine you won't be able to use anymore and your warranty is now void.
Also please do not flash the backup of someone else, as this will hard-brick your phone.
People have been saying for a very long time that if you edit your phone, it's automatically void. But that is not what Sony says. Sony says warranty MAY be void if the phone is edited. I've sent a few edited phones back for repair (normal phone damage, not me) and they happily replaced my phone.
As for TA, in the past, flashtool could return your TA keys. I haven't tried that in a long time so I don't know if you still can. It worked for any device, it was not device specific or unique.
Hey,
So I had one tablet SGP771 that had a broken TA-Partition after unlocking bootloader and enabling My Xperia. After updating the tablet to 6.0 My Xperia asked for login etc, and it now works flawlessly without any issues to activate and deactivate. Is it now maybe a chance for all those who broke their TA-Partition to regain root status if an exploit is found in 6.0 kernel?
Also a sidequestion. I have the SGP712 version of this tablet as well, other one is my GF's after i broke it. But I have root on this, can I update to 6.0 after using AndroPlus kernel without losing root status?
Thanks in advance
The same here
You are my Hero, thank you so much.
I have unlocked the bootloader of my z4 (712) and didn't noticed that the TA and all DRM keys are getting lost on this action ("chief fast finger" strikes back again :crying: )
But then I read your posting and made an attempt. And what should I say; It seems to me that the DRM keys are back again. The Album Widget is working, TrackID works again. For me Emma made it; YMMV of course
Thanks so much:
denk_mal
BTW can someone tell me a way to find out a (nondestructive) way to find out if the keys are really there?
denk_mal said:
BTW can someone tell me a way to find out a (nondestructive) way to find out if the keys are really there?
Click to expand...
Click to collapse
Try toggling the display enhancement options like X-Reality and see if they indeed change the display?
jelbo said:
Try toggling the display enhancement options like X-Reality and see if they indeed change the display?
Click to expand...
Click to collapse
I have checked the service menu in the meantime and found out, that the DRM Key are gone
Service/Security shows:
Blobs: generic error!
HUK: generic error!
OTP_LOCK_STATUS : LOCKED
But I have official Android 6.0 MM now; This more than nothing
denk_mal
hai everyone..
i have z4tablet 771 aswell..
and my bootloader is unknown..
can i ask you where did you update it ?
via pc companion or via xfirm that can restore back your bootloader ?
thank you
I have used Emma from sony developers. (serach for "sony" and "emma") because PC Companion dosn't work on my unlocked Z4
HTH
denk_mal
This is the first Huawei device I own and I was wondering, what are the consequences of unlocking the bootloader?
Would DRM be lost forever like in Sony Xperia phones?
And if they are lost, does any software on stock Huawei android OS stop working?
Please give as much detail as possible in your answers since I do not want to mess up my new phone.
Unlocking the bootloader permits you to modify entirely the system.
However it comes up that he puts you an annoying message saying that "this device cannot be trusted" EVERYTIME you restart your phone.
Even when you go to your stock or TWRP recovery, it always says this.
When you're rooted and you decide to relock your bootloader, it'll tell that your device is modified so it failed verification... so it's another message in your face !
You'll lose warranty it seems, you'll lose all your data, and DRM might be deleted too (due to the "factory reset lowlevel")
But there are no losses in functionality like on Sony devices. So in general, if you know what you're doing you won't run up against any problems.
Hi there,
So I am a bit confused, but mostly I am curious... So I have a Sony Xperia Z4 Tablet (SGP771), I bought it off ebay pre-owned and for awhile I have been curious about rooting this device (mainly to block ads and remove unwanted and unremoveable content [ie Facebook] whilst still using stock android, but rooted). But for awhile now I have known that my device in the service\configuration menu has said 'Bootloader Unlock Allow: No' which has excluded me from what feels like everything available in terms of modifying the system to actually be rooted. The device is network locked to O2 UK, which I also assume the device is network restricted in relation to the bootloader also.
So I am confused because some threads have said about unlocking a locked bootloader, whilst most have clearly stated that their modification is not for my device (After having the bad bootloader message after all). So my question is, could someone tell me what actually is available (If anything at all) For me to root this device?
What I have learnt so far is that if I want to change the 'Bootloader Unlock Allowed: No' I would have to switch the motherboard with another one (Which is clearly an extremely expensive process and not something I would want to do). Other than that I would have to wait for an exploit, But I am not sure if there is one available (Yet?) which brings me to my earlier question. Otherwise I would have to continue to use the unrooted stock android, which I dont really have any issue with because I would definitely still root it and use stock if that was available to me (Blasted bootloader rejection).
I would really apprechiate a response on this and thanks for reading XD
I would contact o2 and see if they can help.
Maybe SONY (doubt they will do it) or a SONY repair center (third party).
Replacing the bootloader should be doable in software.
No solution to Xperia Z4 Tablet Locked Bootloader
Hello, I got the same model locked to O2 UK as well and as far as I know there's still no solution to that problem, ie changing the rooting status to YES or rooting the device on a locked bootloader like we all rooted previous Xperia devices. O2 requested Sony to lock the bootloader on purpose. There are many reasons for this. One of them is, O2 doesn't want anyone to change the IMEI of their device if it gets blacklisted, for example. Of course Sony (Service Centre) can unlock it but I doubt we find a Sony member of staff who will risk losing their job for doing so. However, there's a way of uninstalling unwanted apps (bloatware) without root, but this method uninstalls the bloatware for the current user only. So basically if you have several user accounts, you'll have to uninstall those apps as many times, and also keep in mind that the operation is not reversible. So the only way to restore those apps is by factory-resetting the tablet which leads to wiping all the user-data. That method is done via a PC and you need to install, I think, Android SDK as well as Sony drivers. The full guide can be found here
https://www.xda-developers.com/uninstall-carrier-oem-bloatware-without-root-access/
Again, this is not reversible unless you factory-reset the tablet.
If I ever find a solution, or a renegade Sony guy lol, I'll let you know.