Develop Bugs

[dev][cam][improvements & auto-focus dev][other aosp issues]

Hi, I've spent some time looking @ our camera since there is no evidence of sony breaking camera or not and people seem to be doing alot of guessing, some say DRM keys some say binaries causing issues etc. Enough of guessing and lets take a look at what really is going on.
This thread will look at both improving the camera & auto focus issue along with current AOSP errors
Our camera HW =
What our device currently supports: (to be filled in)
Yes Google is working on RAW camera support (We cannot enable it for our devices)
Apparently unlocking the bootloader breaks camera?????????
Build.prop modifications:
persist.camera.feature.cac (value = 1/0) (not sure what this does yet)
persist.camera.dumpimg (stores to data/img.jpg)
persist.camera.snapshot_raw (
persist.camera.preview_raw
persist.camera.zsl_raw
persist.camera.zsl_yuv
persist.camera.opt.livepic
persist.camera.zsl.interval
persist.camera.zsl.backlookcnt
persist.camera.zsl.queuedepth
persist.camera.snapshot.number
persist.denoise.process.plates
persist.camera.snap.format
persist.capture.burst.exposures
persist.debug.set.fixedfps
persist.debug.sf.showfps
persist.camera.thermal.mode
persist.camera.mem.usecache
persist.camera.longshot.save
persist.camera.dumpmetadata
pretty much self explanatory, but will give more indepth information later on these, what to set these values to and what they do...
Installed Carbon ROM which is pretty awesome but I came across errors in general and ones that are related to camera...
General Errors:-
Kernel:
SPKDRV supply cdc-vdd-spkdrv isn't defined
timeout while setting prog bit, ETMSR: 0x0
Cache ERP
ROM:
Missing binarys
Camera Errors:-
Kernel:
AVC
ROM:
Errors - IDD-API: IDD_SET_SDATA : SEND FAILED Socket 34 Errcode 2 (No such file or directory)(IMPORTANT ERROR)
Error - QCOM_SENSOR_HAL
LIBCAMERALIGHT - Sys Interface Error (this errors can be fixed by giving it write permission)
Error from Focus detector
LIBALS-SYSALS /dev/input/uevent8 (PERMISSIONS DENIED)(IMPORTANT ERROR)
CREDMGRLIB Send/Recieve socket failure Error!! (Important) (CREDMGR_RESULT_GENERIC_ERROR
Ckb create failed
Ckb is not ready
Note:
Camera Focus Distance = Infinite???? :s
Cam parameters before param fixup is called: focus-areas=(0,0,0,0,0)
Cam Parameters after param fixup is called: focus-areas=(-510,30,-398,230,1)
The above is only to identify the current errors with AOSP, when I have more free time and hopefully an upgraded PC I will be able to compile, diagnose and hopefully fix some of these...
I have a rough idea on what is going on with the camera now, will take alot of testing and patience thank you
1080p 60fps will be released soon after more testing....
1080p 60fps:

If it was like you think, why is the camera broken just by unlocking bootloader on a stock rom? Or is it not ?

Guys, it's simple.
The problem happens just because unlocking the bootloader will zero out the DRM partition.
Then, the focuser blob calls the internal DRM authentication that actually fails because of wrong keys... and that produces unability to start a server that is responsible of the communication with the actual focuser kernel driver.
That's all.
If anyone cracks the DRM binaries by Sony to change the reply, both X-Reality or Bravia as you want to call it, AND the focuser will work.

kholk said:
Guys, it's simple.
The problem happens just because unlocking the bootloader will zero out the DRM partition.
Then, the focuser blob calls the internal DRM authentication that actually fails because of wrong keys... and that produces unability to start a server that is responsible of the communication with the actual focuser kernel driver.
That's all.
If anyone cracks the DRM binaries by Sony to change the reply, both X-Reality or Bravia as you want to call it, AND the focuser will work.
Click to expand...
Click to collapse
Why do you know it's DRM? I would say it's just the binaries, not DRM
Sent from my Xperia Z1 using xda app-developers app

cocchiararo said:
If it was like you think, why is the camera broken just by unlocking bootloader on a stock rom? Or is it not ?
Click to expand...
Click to collapse
I was thinking about that, will test it too
kholk said:
Guys, it's simple.
The problem happens just because unlocking the bootloader will zero out the DRM partition.
Then, the focuser blob calls the internal DRM authentication that actually fails because of wrong keys... and that produces unability to start a server that is responsible of the communication with the actual focuser kernel driver.
That's all.
If anyone cracks the DRM binaries by Sony to change the reply, both X-Reality or Bravia as you want to call it, AND the focuser will work.
Click to expand...
Click to collapse
krabappel2548 said:
Why do you know it's DRM? I would say it's just the binaries, not DRM
Sent from my Xperia Z1 using xda app-developers app
Click to expand...
Click to collapse
@everyone this isnt a [letshaveaguesswithnoevidence] thread... Its a [dev] thread, dev posts which include debugging/evidence will be taken seriously.

Hope you guys reach a solution soon.
Good luck.
Sent from my C6903 using Tapatalk

i wouldn't say, that the camera issue is a binary problem.
i would say it is the DRM-partition ... BUT ... i was thinking about that issue and tried a lot ... ONE thing was to flash a rooted and deodexed STOCK rom on unlocked bootloader. cam wasn't working, but that was, what i expected ... then i recovered my TA-Partition and the bootloader, the rom was bootable after that (stock kernel with stock rom, just modified) but the cam was not working ... so the TA and BL recovery hasn't fixed the cam issue ...
don't know, what exactly is the problem with the cam, but i think we have to be more focused on that, because that is one reason, why people will not flash our roms and withot people trying our roms, the bug reports will not be very much ...
so if we will be able to get the camera working, there will be much more users testing our roms and kernels on their devices and we will get better feedback.
So i think the cam is the NUMBER ONE problem of our nice devices ....

I think your initiative is something to be praised here.Maybe if more devs pitched in, you could work together on this and at least come up with a few more ideas so we have a better understanding of what's actually going on (which is a start).
I'm sure that Sony would also follow your work and I'm sure they will release a fix sooner than later (it's their flagship). I was very dissapointed by this bootloader unlocking bug and I really hope this will get fixed because I for one love this phone (been using it for a month now).
I wish you good luck in this endevour! )

DJ_Synergy said:
then i recovered my TA-Partition and the bootloader, the rom was bootable after that (stock kernel with stock rom, just modified) but the cam was not working ... so the TA and BL recovery hasn't fixed the cam issue ...
Click to expand...
Click to collapse
I did this many times and always cam worked fine. Just wipe cam data after restoring TA. And of course your TA must be backuped BEFORE first unlocking.

cocchiararo said:
If it was like you think, why is the camera broken just by unlocking bootloader on a stock rom? Or is it not ?
Click to expand...
Click to collapse
Tested, it does not work with stock rom/stock kernel on unlocked bootloader... Interesting...
kholk said:
Guys, it's simple.
The problem happens just because unlocking the bootloader will zero out the DRM partition.
Then, the focuser blob calls the internal DRM authentication that actually fails because of wrong keys... and that produces unability to start a server that is responsible of the communication with the actual focuser kernel driver.
That's all.
If anyone cracks the DRM binaries by Sony to change the reply, both X-Reality or Bravia as you want to call it, AND the focuser will work.
Click to expand...
Click to collapse
You are correct, clearly you have checked this out earlier, it is the DRM keys which isnt allowing the camera to activate, its not like the camera focus is passing wrong values, the camera doesnt function at all on focus, hw focus detector error, credmanager, looks like credmgr wants the keys but isnt receiving them so doesnt activate bravia/imageproccessor...
Methods to get this working would be...
1. Crack DRM (Difficult, I wont attempt this)
2. Kexec (delewer has been working on it and he has taken it far, in talks with him, attempting to help him whenever I can)
3. Run AOSP on stock kernel... (Anyone attempted this? Not sure... Can it be done? Most likely... (wont benefit from custom kernel e.g. Overclocking undervolting etc etc))
Best option looks to be number 2, kexec
Edit: Further testing, Lets see if I can fool the device in thinking I already have the keys...

Shaky156 said:
Tested, it does not work with stock rom/stock kernel on unlocked bootloader... Interesting...
You are correct, clearly you have checked this out earlier, it is the DRM keys which isnt allowing the camera to activate, its not like the camera focus is passing wrong values, the camera doesnt function at all on focus, hw focus detector error, credmanager, looks like credmgr wants the keys but isnt receiving them so doesnt activate bravia/imageproccessor...
Methods to get this working would be...
1. Crack DRM (Difficult, I wont attempt this)
2. Kexec (delewer has been working on it and he has taken it far, in talks with him, attempting to help him whenever I can)
3. Run AOSP on stock kernel... (Anyone attempted this? Not sure... Can it be done? Most likely... (wont benefit from custom kernel e.g. Overclocking undervolting etc etc))
Best option looks to be number 2, kexec
Edit: Further testing, Lets see if I can fool the device in thinking I already have the keys...
Click to expand...
Click to collapse
Maybe we can plant a ta-dump on credmgr somehow? Maybe we can find the start-address where credmgr looks for TA, place the dump in ram und modify the address in the binary to point it there.

When the bootloader is unlocked, what is altered? Certain things stop working, like DRM content, I believe this is the main cause of the camera not working, I'm thinking is there a way to spoof the system, forcing it to believe that that specific part of the DRM (for the camera) is still intact, when the bootloader is unlocked? Perhaps if the app / program used to unlock the bootloader could be obtained and modified to allow the specific part of the unlocking to leave the camera intact ??? Just an idea.
Of course that would mean isolating it, which i can't see being easy.
Really bad on Sony's part for letting this happen, surely they would have tested it prior to releasing it ?
With that in mind it would seem that it was Sony's intention to have the camera not work if you unlocked the bootloader, really don't understand this approach.

Yes sony wanted to break camera, with all the stuff ive seen today contained within our devices... Breaking camera was no mistake by sony
4k wont happen unless Sony allow it, camera only passes 1080p, have to use specific yuv(Venus) format for 4k afaik, max fps available is 60 on both 720p & 1080p, no HFR(90. 120, 150fps mode available)
Will update OP with more information regarding what our cameras can support
Also i see the light at the end of the tunnel... Regarding kexec

Yeah, Kexec would be the workaround for that. The Keys would stay untouched cause of the old kernel and the new kernel will boot the system ... if the system then read the key, it will get correct values out of the partitions ... just in theory ...
So if we can get kexec to work, it may not break the camera and we have a good workaround for that ...
will try to help on kexec ... hopefully we can get it to work ...
---------- Post added at 11:37 AM ---------- Previous post was at 11:26 AM ----------
Desperanto86 said:
I did this many times and always cam worked fine. Just wipe cam data after restoring TA. And of course your TA must be backuped BEFORE first unlocking.
Click to expand...
Click to collapse
TA backup had been the first i have done so yeah, for sure BEFORE unlocking ...
haven't tried to wipe camdata so that was the fault ^^ ... will try it again

Just a thought... not sure if it is possible (since I'm not that familiar with embedded systems and such)..
but could it be possible that only certain parts of the TA-partition are restored when restoring the backup after unlocking, so the DRM-stuff is retained?

Guyz just want to know, camera will be back (from Sony or anothers) ??

kartal172 said:
Guyz just want to know, camera will be back (from Sony or anothers) ??
Click to expand...
Click to collapse
You really shouldn't be asking for this here. This issue is frustrating enough without having people asking for ETAs. If you want to help, pressure Sony online to give us an update on their status.
Sent from my K00C using XDA Premium HD app

cursordroid said:
You really shouldn't be asking for this here. This issue is frustrating enough without having people asking for ETAs. If you want to help, pressure Sony online to give us an update on their status.
Sent from my K00C using XDA Premium HD app
Click to expand...
Click to collapse
Just asking that is confirmed from Sony possible fix or any news?

kartal172 said:
Just asking that is confirmed from Sony possible fix or any news?
Click to expand...
Click to collapse
There is no confirmation. There is no news.

I have twitted them several times without answer

Im planning to buy a Z1 Compact Have some Questions

Is it hard/risky to root install custom recovery and stuff on this phone? How is 4.4.2 roms fairing on this device?
thanks

capuagenclik said:
Is it hard/risky to root install custom recovery and stuff on this phone? How is 4.4.2 roms fairing on this device?
thanks
Click to expand...
Click to collapse
If you unlock the bootloader then its easy, you just unlock it through sony site here
http://unlockbootloader.sonymobile.com/
then read this
[D550X] CWM-Based Recovery 6.0.4.6 + ROOT for Xperia Z1 Compact {KitKat!} [20140320]
Now if you want to backup DRM keys first, you must root it before unlocking BL, its a bit tricky but make sure you read instructions. Heres 2 thread for more info
Root and Dual Recovery for Locked Bootloader
[GUIDE] Back up DRM Keys & unlock/relock Bootloader (Noob proof)
As for roms I've only tried CM nightly, so far so good.

capuagenclik said:
Is it hard/risky to root install custom recovery and stuff on this phone? How is 4.4.2 roms fairing on this device?
thanks
Click to expand...
Click to collapse
Rooting without unlocking bootloader is not hard (test point method to unlockbootloader on 2011 xperias is harder). It takes time though as you need to flash 3 times (z1f/docomo model, then normal z1, root and recovery, then z1 compact), continue to recovery then resore the whole system and do the re-root in recovery. (see link posted above). Rooting to kitkat takes more time as you need to get 4.3 root before update.
Personally I find the 4.3 (124) firmware very stable and relatively bugfree. Sony stock 4.4.2 have some bugs and minor update is reportedly incoming. If you buy and got one with 4.3, installed, my recomendation is to wait updating to kitkat until the updated firmware.

Thanks for the input guys I have decided to wait for z2 compact and hope Sony will give a better quality material also I heard they gave up on ASF so I will stick to my g2 atm since 4.4.2 is absolutely brilliant on it. But definitely be waiting for the z2 compact. Sorry if I wasted your time.
Sent from my LG-D802 using Tapatalk

Xperia Z1C owners.. i have a question about the speaker audio output quality.. i was reading the review from gsma and they mentioned about weak audio output, so what im confused about (cos i heard in many reviews) is whether the audio quality is good or not? cos volume levels can be bumped up with all the mods..

Audio for me no problem, there is a thread of mod to boot volume (http://forum.xda-developers.com/showthread.php?t=2476498) if u r rooted. For music I used V4A and better EQ quality.
there is also kitkat fix soon from sony so hopefully will sort out the kitkat bugs.

peRFect! said:
Xperia Z1C owners.. i have a question about the speaker audio output quality.
Click to expand...
Click to collapse
At the end of the day it's a Phone speaker so it's as good as any other Phone speaker in my opinion.

Considering the phone is water resistant to IP58, I am quite happy with the sound, I expected less.

Does it work for rooting Z5 Premium????

Good morning All,
I am so new to Sony. Saw this method while searching. any of you been used and success??? thank you
http://www.androidinfotech.com/2016/07/root-sony-xperia-z5-premium-e6853-60.html

ongxa said:
Good morning All,
I am so new to Sony. Saw this method while searching. any of you been used and success??? thank you
http://www.androidinfotech.com/2016/07/root-sony-xperia-z5-premium-e6853-60.html
Click to expand...
Click to collapse
Try it out and let us know.
Sent from my SGP311 using XDA Free mobile app

DON'T DO IT! Be careful.
From what I can see, they want you to unlock your bootloader, which is nothing special and the preferred (only one) root method, mentioned here...
You should think about backing up your DRM-Keys first by using this method

the_brad said:
DON'T DO IT! Be careful.
From what I can see, they want you to unlock your bootloader, which is nothing special and the preferred (only one) root method, mentioned here...
You should think about backing up your DRM-Keys first by using this method
Click to expand...
Click to collapse
thank you for your reply, bro.

Funny, how people are looking to root their device but re-think about rooting it. Don't even think of rooting your phone if you're unsure about what you're doing. Might as well just buy an iPhone and forget about modding your phone to its full potential.
Seriously, I don't even give a damn about warranty and DRM keys. I bought the phone, and it's mine. I should have full control over it and modify it as I want, say unlock the bootloader or whatever it is, hey it's my money well spent why should I care less... The only problem that will come in is when you put your Z5 premium dual into water and it starts to evaporate on your camera lense then you should send it to Sony for warranty or just send to any mobile phone shop and spend some money. Come on the moment your warranty is over, your phone will become obsolete, Z7 will come in hand.
Edit: Anyway, enough random rant. If you still wanna root your phone check this out for the DUAL variant... http://forum.xda-developers.com/z5-premium/general/complete-noob-friendly-guide-to-t3426220

ongxa said:
Good morning All,
I am so new to Sony. Saw this method while searching. any of you been used and success??? thank you
http://www.androidinfotech.com/2016/07/root-sony-xperia-z5-premium-e6853-60.html
Click to expand...
Click to collapse
before rooting please tell what is your Z5p
1. version E6xxx
2. what is your stock build number (last three digits) .170 ?
3. do u know rooting? and its risks and its privileges ?
now,
if you are having SONY z5 (z5p) (any variant) with LOLLYPOP rom ( sony version ending with .170 )
there is simple way to
1. ROOT
2. and backup your DRM KEYS
kingroot can root androild 5.1.1 (32.0.A.6.170) (many says kingroot is unsafe and it takes device info to china servers) ( so they might be true)
once you have ROOTED 5.1.1 ,
download this https://github.com/DevShaft/Backup-TA/archive/v9.11.zip and take your DRM KEYS BACKUP
READ INSTRUCTIONS at
https://github.com/DevShaft/Backup-TA/releases
once backup is taken, just download and flash kernel for your variant from here
http://forum.xda-developers.com/z5-premium/general/32-1-1-185-stock-modified-kernel-t3355369

YasuHamed said:
before rooting please tell what is your Z5p
if you are having SONY z5 (z5p) (any variant) with LOLLYPOP rom ( sony version ending with .170 )
there is simple way to
1. ROOT
2. and backup your DRM KEYS
kingroot can root androild 5.1.1 (32.0.A.6.170) (many says kingroot is unsafe and it takes device info to china servers) ( so they might be true)
once you have ROOTED 5.1.1 ,
download this https://github.com/DevShaft/Backup-TA/archive/v9.11.zip and take your DRM KEYS BACKUP
Click to expand...
Click to collapse
I have a Z5P, but it's running Marshmallow (6.0.1) - is it possible to root it?
And is it possible to root it without losing all my settings and resetting everything to factory defaults?
Also, why are the DRM key backup important? What do I need them for?
Model: E6853
Version: 32.2.A.0.253

englen said:
I have a Z5P, but it's running Marshmallow (6.0.1) - is it possible to root it?
And is it possible to root it without losing all my settings and resetting everything to factory defaults?
Also, why are the DRM key backup important? What do I need them for?
Model: E6853
Version: 32.2.A.0.253
Click to expand...
Click to collapse
Q. is it possible to root z5p on 6.0.1?
A. YESSS
Q. without loosing settings data?
A. NO
Q. why?
A. because rooting z5p running on 6.0.1 / kernel 3.1x; require unlocking bootloader. and the momment u unlock you boot loader (a) your internal storage / TA Partitions gets Wiped (b) and you looks your DRM keys / FIDO Keys
Q. why do u need DRM keys?
A. frankly , have rooted fone, and i never had chance to save my keys! because you can only save yoru keys on LP kernel! and MM kerna don't have workaround! , i have kernel having DRM stimulation fixed so X-reality and camera 4k feature works fine.
DRM keys are Digital rights managment keys comes in play when Sony software running in xperia validate themselve and runs with full features!. modified kernal has drm stimulant installed so kernel still report these setting/software that keys are there (even when they arent)
Fido keys are required by Google authentication login.
having drm keys / fido keys/ backup is a PLUS point!, if you don't have . then still for me no biggy!

YasuHamed said:
Q. why do u need DRM keys?
A. frankly , have rooted fone, and i never had chance to save my keys! because you can only save yoru keys on LP kernel! and MM kerna don't have workaround! , i have kernel having DRM stimulation fixed so X-reality and camera 4k feature works fine.
DRM keys are Digital rights managment keys comes in play when Sony software running in xperia validate themselve and runs with full features!. modified kernal has drm stimulant installed so kernel still report these setting/software that keys are there (even when they arent)
Fido keys are required by Google authentication login.
Click to expand...
Click to collapse
So it won't be possible to root and run the original ROM? I guess that means I miss out on future OTA updates :-/
Seems like a lot of hassle for little gain :-/
Also it seems I probably won't choose Sony again, I feel that when I pay good money for a phone, I should be able to use it as I please. And Sony is actively trying to stop me from doing that.

ongxa said:
Good morning All,
I am so new to Sony. Saw this method while searching. any of you been used and success??? thank you
http://www.androidinfotech.com/2016/07/root-sony-xperia-z5-premium-e6853-60.html
Click to expand...
Click to collapse
the process is similar
flashing modified kernel!
i recommend using STOCK MODIFIED kernel
I ROOTED my PHONE (z5p) and i shared my personal experience STEP BY STEP
http://forum.xda-developers.com/z5-...ting-xperia-z5-z5p-variants-drm-keys-t3437902
---------- Post added at 07:39 AM ---------- Previous post was at 07:19 AM ----------
ongxa said:
Good morning All,
I am so new to Sony. Saw this method while searching. any of you been used and success??? thank you
http://www.androidinfotech.com/2016/07/root-sony-xperia-z5-premium-e6853-60.html
Click to expand...
Click to collapse
englen said:
So it won't be possible to root and run the original ROM? I guess that means I miss out on future OTA updates :-/
Seems like a lot of hassle for little gain :-/
Also it seems I probably won't choose Sony again, I feel that when I pay good money for a phone, I should be able to use it as I please. And Sony is actively trying to stop me from doing that.
Click to expand...
Click to collapse
it is Original Rom, just kernel is MODIFIED to give you root access.
- sony OTA don't check your root access it only refer to unlock/lock boot loader and push OTA. if you RELOCK your bootloader by (flashTOOL)
http://www.flashtool.net/downloads.php , your device will get OTA.
- remember after any major system OTA your root access will be gone
- All major devices Samsung / HTC / LG / SONY / Huawai has extra securities enabled from Android 6x.x making hard to break and gain root access.
- Oneplus3 , Xiomi phones and others have one click root enable feature (from developer options)
- but yes i agree, Sony went one step ahead with DRM keys. feels like making deal with devil in order to have root access. breaking sony devices is Pain in the XXXX
- I prefer rooted phones as they give you freedom to control your ram and remove bloatware.
- I also prefer xperias because they are more reliable and once rooted they get even better!
- i have rooted x5p and works like a charm (6.01 / .253)
z5p modified STOCK kernels can be found at (version .253) https://mega.nz/#F!KwZhjLIK!uNbDzR6lCXMaaW7jKFS1WQ!vogFiYiL (respects to @KbaB.BroS
how to root? my experience, how i did it? please read http://forum.xda-developers.com/z5-...ting-xperia-z5-z5p-variants-drm-keys-t3437902

cglegion said:
Funny, how people are looking to root their device but re-think about rooting it. Don't even think of rooting your phone if you're unsure about what you're doing. Might as well just buy an iPhone and forget about modding your phone to its full potential.
Seriously, I don't even give a damn about warranty and DRM keys. I bought the phone, and it's mine. I should have full control over it and modify it as I want, say unlock the bootloader or whatever it is, hey it's my money well spent why should I care less... The only problem that will come in is when you put your Z5 premium dual into water and it starts to evaporate on your camera lense then you should send it to Sony for warranty or just send to any mobile phone shop and spend some money. Come on the moment your warranty is over, your phone will become obsolete, Z7 will come in hand.
Edit: Anyway, enough random rant. If you still wanna root your phone check this out for the DUAL variant... http://forum.xda-developers.com/z5-premium/general/complete-noob-friendly-guide-to-t3426220
Click to expand...
Click to collapse
people have misconception about devices! many of my literate/ job holding friends thinks that Android is Samsung galaxy / note series ONLY! , for them if galaxy s6 is failing, S7's battery is xploding then its a failure of ANDROID!
for such people , YES i agree they shouldn't try tasting the custom cooked modded Android! , better buy iphone / lumia !
I agree with you! I bought sony , its expensive as compare to other devices! , I should hold BETTER control over my hardware than sony! its my hardware now! and i will take care of it! i know i can take care of it
... coming from proud user of 5 xperia devices (all rooted/ modded )

YasuHamed said:
Q. is it possible to root z5p on 6.0.1?
A. YESSS
Q. without loosing settings data?
A. NO
Q. why?
A. because rooting z5p running on 6.0.1 / kernel 3.1x; require unlocking bootloader. and the momment u unlock you boot loader (a) your internal storage / TA Partitions gets Wiped (b) and you looks your DRM keys / FIDO Keys
Q. why do u need DRM keys?
A. frankly , have rooted fone, and i never had chance to save my keys! because you can only save yoru keys on LP kernel! and MM kerna don't have workaround! , i have kernel having DRM stimulation fixed so X-reality and camera 4k feature works fine.
DRM keys are Digital rights managment keys comes in play when Sony software running in xperia validate themselve and runs with full features!. modified kernal has drm stimulant installed so kernel still report these setting/software that keys are there (even when they arent)
Fido keys are required by Google authentication login.
having drm keys / fido keys/ backup is a PLUS point!, if you don't have . then still for me no biggy!
Click to expand...
Click to collapse
Dear,
thanks, just to clarify: I've the Dual SIM Edition (Emirates) with 6.0.1: there is no way to have a direct rooting? I have to proceed with the downgrade first?
Regards,

sev7en said:
Dear,
thanks, just to clarify: I've the Dual SIM Edition (Emirates) with 6.0.1: there is no way to have a direct rooting? I have to proceed with the downgrade first?
Regards,
Click to expand...
Click to collapse
if you don't wana backup your drm keys, no need to downgrade just flash kernel

YasuHamed said:
if you don't wana backup your drm keys, no need to downgrade just flash kernel
Click to expand...
Click to collapse
Thank you, as I remember, when rooted the SONY devices lose / lack of feature as for quality of the camera. Did we have any side effect now?

sev7en said:
Thank you, as I remember, when rooted the SONY devices lose / lack of feature as for quality of the camera. Did we have any side effect now?
Click to expand...
Click to collapse
i have rooted z5p, the modified kernals have DRM KEYS STIMULATION
http://forum.xda-developers.com/z5-...ting-xperia-z5-z5p-variants-drm-keys-t3437902
i never had chance to backup my keys!
it works fine with me

Urgent Questions.. phone arrives tomorrow

Hey XDA'rs,
I have a couple questions. I recently (today) bought the Sony Xperia Z5 unlocked Dual International Version with no warranty.
1: Where is the most updated root for this phone? And. Should I upgrade to nougat before rooting?
2: what is currently the best and most stable rom for the z5 premium?
3: any experience with VR and this phone? And anyone use daydream vr headset with it? I know you can trick the headset into allowing the z5 premium. Just curious if anyone had any experiences with vr on it good or bad
4: how do you like the device now and what do you dislike? Please tell me how long you owned it.
5: how water(resistant) is the xperia z5 premium. Can I take it in the pool, shower, or wash it off under a facet?

AustinK said:
Hey XDA'rs,
I have a couple questions. I recently (today) bought the Sony Xperia Z5 unlocked Dual International Version with no warranty.
1: Where is the most updated root for this phone? And. Should I upgrade to nougat before rooting?
2: what is currently the best and most stable rom for the z5 premium?
3: any experience with VR and this phone? And anyone use daydream vr headset with it? I know you can trick the headset into allowing the z5 premium. Just curious if anyone had any experiences with vr on it good or bad
4: how do you like the device now and what do you dislike? Please tell me how long you owned it.
5: how water(resistant) is the xperia z5 premium. Can I take it in the pool, shower, or wash it off under a facet?
Click to expand...
Click to collapse
1. https://forum.xda-developers.com/z5...ting-xperia-z5-z5p-variants-drm-keys-t3437902
2. try this page dont have root so you can try different roms since you will root your phone https://forum.xda-developers.com/z5-premium/development
3.https://forum.xda-developers.com/z5-premium/general/z5-premium-vr-entertainment-device-t3467838
4. will not replace almost 2 years. got it from pre-order
5. yes done this several times.

AustinK said:
Hey XDA'rs,
I have a couple questions. I recently (today) bought the Sony Xperia Z5 unlocked Dual International Version with no warranty.
1: Where is the most updated root for this phone? And. Should I upgrade to nougat before rooting?
----------- on android 7.00 - 32.3.A.2.33 -1-april-2017 is the most update rom / about upgrade and root, Nested Thread can be seen at https://forum.xda-developers.com/showthread.php?p=71690027#post71690027
2: what is currently the best and most stable rom for the z5 premium?
------- In my experience - 32.2.A.5.11 on android 6.01 - DEC2016 was the best rom so far. battery very stable)
3: any experience with VR and this phone? And anyone use daydream vr headset with it? I know you can trick the headset into allowing the z5 premium. Just curious if anyone had any experiences with vr on it good or bad
---- pass
4: how do you like the device now and what do you dislike? Please tell me how long you owned it.
---- even as a die hard xperia Fan, i give z5p 7/10 ---- its been 1 year since i am using this device. plz note that z5p is my 6th device so my judgement is based on previous devices/rom/hardware/screen color viewing agles/ heat while watching movies+charging
5: how water(resistant) is the xperia z5 premium. Can I take it in the pool, shower, or wash it off under a facet?
----- I never did hard water test with my z5p since i love the device! but yes i have cleaned it under running tap water, couple of times and the device was ok
Click to expand...
Click to collapse
if you plan to ROOT your z5p ,,, this means you must unlock the boot loader and you will loose the drm keys!
before upgrading to 7.0 , while device is on android 6 use DIRTYCOW Sript xploit to extract and backup DRMKEYS/TAbackup
https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
once your have the gem keys! you can do what ever you want! but plz don't unlock you device before having drmkeys backup!
----- dirtycow don't work on android 7

YasuHamed said:
if you plan to ROOT your z5p ,,, this means you must unlock the boot loader and you will loose the drm keys!
before upgrading to 7.0 , while device is on android 6 use DIRTYCOW Sript xploit to extract and backup DRMKEYS/TAbackup
https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
once your have the gem keys! you can do what ever you want! but plz don't unlock you device before having drmkeys backup!
----- dirtycow don't work on android 7
Click to expand...
Click to collapse
What are drm keys and why are they important?
And should I root then OTA to nougat 7.0 or should I nougat 7.0 then root?
Will it stay rooted if I OTA update or will it remove flash?
Sorry, I come from Samsung devices with one-click rooting so I'm a noob otherwise

AustinK said:
What are drm keys and why are they important?
And should I root then OTA to nougat 7.0 or should I nougat 7.0 then root?
Will it stay rooted if I OTA update or will it remove flash?
Sorry, I come from Samsung devices with one-click rooting so I'm a noob otherwise
Click to expand...
Click to collapse
Code:
[B]
I come from Samsung devices with one-click rooting :P [/B]
Say no more sir.
I can understand your questions!
Sony in way more sophisticated crafted phones both on hardware and stockrom level!
inshort
1. DRM KEY (Digital Rights Management Keys) are stored in special partitions called TRIM AREA (TA). these keys are required for some SONY proprietary software to work FULLY. 4k Recording in Camera, BRAVIA and X-REALITY Engines, enhance photo features while clicking photographs. if these keys are lost, it will affect the performance of the device
2. whenever you update your device, rooting gets voide so root after OTA
3. since your bootloader is locked , actually you canot ROOT your device! you can only flash stockrom! . or downgrade to android 6.01, extract drm keys via DIRTYCOW script and then unlock bootloader, upgrade to android 7.0 (N) and then root it!
in my xperience! the time taken by me to root 3 different samsung phones was equivalent in Rooting one Z5p :s
rooting sony is very tricky!

is it possible to restore DRM?

HI all, I might know the answer to this but might as well ask. I recently acquired a Z5 premium that had an unlocked bootloader. I restore everything to stock but don't have DRM. Fido_keys is not provisioned. I asked the previous owner and said he doesn't have the backup file. So my question is, is it even possible to restore DRM? I mainly got it for PS4 remote and back up phone. My main phone is lg v20. so if i can't restore, so be it... Ps4 remote works flawlessly. I have ps4 remote on my v20 but ps4 controller can't be pair. I found a few threads about restoring but they were for other Z phones..

Restoring genuine DRM partiion is not possible. Your best bet is tobunLock he bootlpader and consult one of the kernels in the forum and/or DRM patch available in Sony Cross-Device Development forum.

if you send you mobile to sony and order NEW MOTHERBOARD they will give you new drm keys!
but then, the use of drm keys is to make few sony proprietary software work to its full extant. drm FIXED kernel will do!
https://forum.xda-developers.com/z5...883-32-4-0-t3629001/post72845404#post72845404

YasuHamed said:
if you send you mobile to sony and ordeyr NEW MOTHERBOARD they will give you new drm keys!
but then, the use of drm keys is to make few sony proprietary software work to its full extant. drm FIXED kernel will do!
https://forum.xda-developers.com/z5...883-32-4-0-t3629001/post72845404#post72845404
Click to expand...
Click to collapse
Interesting. I'll have to recheck kernels. New to Sony. I always been a Nexus guy.

Just search DRM fix. There are multiple options.