Unlock bootloader, it's safe? - Sony Xperia X Compact Questions & Answers

Hey, did Unlock bootloader damage your phone?
In z3c would lose the quality of the camera and Bravia mode.
Is now possible to do a Roth without fear?

FIFAR4 said:
Hey, did Unlock bootloader damage your phone?
In z3c would lose the quality of the camera and Bravia mode.
Is now possible to do a Roth without fear?
Click to expand...
Click to collapse
Give this a read as it answers your questions. https://forum.xda-developers.com/crossdevice-dev/sony/root-root-stock-firmware-modern-sony-t3558904

FIFAR4 said:
Hey, did Unlock bootloader damage your phone?
In z3c would lose the quality of the camera and Bravia mode.
Is now possible to do a Roth without fear?
Click to expand...
Click to collapse
you will face the same issue(s), contrary to the guide posted above I would encourage you to backup the TA partition, you can not use the tool in the described in the guide called iovyroot for X compact you will need to use the dirty cow exploit
EDIT: Btw. Flashtool can also do the dirty cow exploit and retrieve the backup.

and although the also guide goes on about nobody knows what widedevine is anyway bla bla.
I can tell you its used for; drm video like amazon prime, Netflix, hbo, etc. so if you plan on using most drm protected video services on your phone, its a thing to also take into consideration (if used any of them on a pc you probably already battled a bit with widevine heh). I am pretty sure the genesis kernel 'fixes' or emulate this without the real drm key from a backup, (I did not check before restoring my own) which would make it the only one on XC atm.

Related

[WARNING] Sony confirm - Unlocking bootloader affect camera functionality

Bringing some bad news for those who already unlocked their bootloader.
But sony confirms bad image quality on z3 and z3 compact on unlocked bootloader due to DRM keys (some noise reduction algorithms and other may be lost.
More info on this site
http://www.xperiablog.net/2014/10/0...oader/?utm_source=dlvr.it&utm_medium=facebook
Official info here
http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
and thread in z3 compact subforum here
http://forum.xda-developers.com/z3-compact/general/loss-drm-keys-t2890936
Just a heads up, this has always been the case with previous Xperias.
I know. I just want to let the people know.
In my opinion, there is no such a ROM worth to broke camera functionality.
If people just want to root their Z3, do they still need to unlock the bootloader?
My Z1 is rooted and the bootloader is still locked.
ssj_jaypee said:
If people just want to root their Z3, do they still need to unlock the bootloader?
My Z1 is rooted and the bootloader is still locked.
Click to expand...
Click to collapse
Only if an exploit is found.
ssj_jaypee said:
If people just want to root their Z3, do they still need to unlock the bootloader?
My Z1 is rooted and the bootloader is still locked.
Click to expand...
Click to collapse
For now, only root methos is with unlocked bootloader. We will need to wait for a while to have proper root with locked bootloader.
Well, The Z3 is not listed as one of the supported devices for unlocking, so no fault of Sony here....
gregbradley said:
Well, The Z3 is not listed as one of the supported devices for unlocking, so no fault of Sony here....
Click to expand...
Click to collapse
But some users confirm they unlocked their Z3 even there is no Z3 on list, as i remember.
http://forum.xda-developers.com/z3/general/bootloader-unlock-t2888735
here
electrash said:
But some users confirm they unlocked their Z3 even there is no Z3 on list, as i remember.
http://forum.xda-developers.com/z3/general/bootloader-unlock-t2888735
here
Click to expand...
Click to collapse
Yes they have unlocked it, but if its not on the supported list and people then unlock anyway then what can you expect? Its not Sony's fault
gregbradley said:
Yes they have unlocked it, but if its not on the supported list and people then unlock anyway then what can you expect? Its not Sony's fault
Click to expand...
Click to collapse
Yes, sure. I didnt understand your point from first reply. Now i understand and i agree with you.
gregbradley said:
Well, The Z3 is not listed as one of the supported devices for unlocking, so no fault of Sony here....
Click to expand...
Click to collapse
anyway Z3 is already supported as i check it yesterday
Sent from my D6653 using XDA Free mobile app
gregbradley said:
Yes they have unlocked it, but if its not on the supported list and people then unlock anyway then what can you expect? Its not Sony's fault
Click to expand...
Click to collapse
So what ? Z3 compact is in the list, but unlocking BL on Z3c broke functionality anyway. See the photos on xperiablog. So it doesn`t make any sense at all...
I`m so upset
BIONZ processing algorithm is replaced with a generic algorithm that reduces the quality. The issue was the same on the Z1 on pre-4.3 firmware.
Sony will fix this later, I hope.
chunlianghere said:
anyway Z3 is already supported as i check it yesterday
Sent from my D6653 using XDA Free mobile app
Click to expand...
Click to collapse
I stand corrected, the Z3 is now in the supported list. It must be a recent addition
gregbradley said:
I stand corrected, the Z3 is now in the supported list. It must be a recent addition
Click to expand...
Click to collapse
but previously when z3 is not in the list, i try z3 compact, which still works. the code given is the same for both.
I don't own a Z3/Z3c but if it uses the TA partition to store the DRM keys, then Backup TA should be used before unlocking the BL.
http://forum.xda-developers.com/showthread.php?t=2292598
However, the Backup TA team did not yet included Z3/Z3c in the list of supported devices (see the above thread).
You may want to ask there if the tool works for Z3/Z3c as well.
If it works, you will be able to restore the DRM keys after.
But, I'd rather wait for a root exploit that doesn't need you to unlock the BL...
That tool requires root so the Z3/Z3c isn't going to be supported until we get a root exploit. Everything depends on that right now.
arturiu said:
I don't own a Z3/Z3c but if it uses the TA partition to store the DRM keys, then Backup TA should be used before unlocking the BL.
http://forum.xda-developers.com/showthread.php?t=2292598
However, the Backup TA team did not yet included Z3/Z3c in the list of supported devices (see the above thread).
You may want to ask there if the tool works for Z3/Z3c as well.
If it works, you will be able to restore the DRM keys after.
But, I'd rather wait for a root exploit that doesn't need you to unlock the BL...
Click to expand...
Click to collapse
It's sure Backup TA would work properly, but the problem is that Backup TA needs root too.
That's why we need an exploit first.
Hello everyone, I was looking at this device as a new toy. However, unlocking the bootloader for me is a must with any device I buy. I have yet to own a Sony. Can anyone tell me how big of a difference is the camera once you unlock the bootloader? Is it a small difference or a major issue? Thanks in advance!
Travisdroidx2 said:
Hello everyone, I was looking at this device as a new toy. However, unlocking the bootloader for me is a must with any device I buy. I have yet to own a Sony. Can anyone tell me how big of a difference is the camera once you unlock the bootloader? Is it a small difference or a major issue? Thanks in advance!
Click to expand...
Click to collapse
On xperia z3 is MAJOR. I would advise to wait for proper root method, and support from TA backup app to backup your DRM first, and then to test your self.
This way, if you dont like it, you can restore your DRM with TA backup.

Sony officially said unlock BL will cause photo quality worse

http://www.androidpolice.com/2014/10/02/unlocking-the-bootloader-on-sonys-xperia-z3-and-z3-compact-causes-poor-low-light-camera-performance-thanks-to-drm/
When the bootloader is unlocked, the device loses certain DRM security keys. That means you can't purchase content from Sony's storefronts and a few licensed features won't work, but it apparently also means basic features of the phone are negatively affected. A Sony rep has confirmed that some advanced camera algorithms on the new generation of devices like the Z3 and Z3 Compact are protected by DRM. If you unlock the phone, those features stop working. Apparently that causes photos in low-light to be noisier and poorly balanced.
Update: Sony has updated the text of the bootloader unlock warning on its website to be clear about the camera impact. It reads, "...the removal of DRM security keys may affect advanced camera functionality. For example, noise reduction algorithms might be removed, and performance when taking photos in low-light conditions might be affected."
I have an unlocked z1c but when I compare the photos taken with previously locked BL and after unlocked, I don't found any different(they are all poor actually...lol).
TheEndHK said:
http://www.androidpolice.com/2014/10/02/unlocking-the-bootloader-on-sonys-xperia-z3-and-z3-compact-causes-poor-low-light-camera-performance-thanks-to-drm/
When the bootloader is unlocked, the device loses certain DRM security keys. That means you can't purchase content from Sony's storefronts and a few licensed features won't work, but it apparently also means basic features of the phone are negatively affected. A Sony rep has confirmed that some advanced camera algorithms on the new generation of devices like the Z3 and Z3 Compact are protected by DRM. If you unlock the phone, those features stop working. Apparently that causes photos in low-light to be noisier and poorly balanced.
Update: Sony has updated the text of the bootloader unlock warning on its website to be clear about the camera impact. It reads, "...the removal of DRM security keys may affect advanced camera functionality. For example, noise reduction algorithms might be removed, and performance when taking photos in low-light conditions might be affected."
I have an unlocked z1c but when I compare the photos taken with previously locked BL and after unlocked, I don't found any different(they are all poor actually...lol).
Click to expand...
Click to collapse
Its not the case if you unlocked BL on android 4.3 and above.
electrash said:
Its not the case if you unlocked BL on android 4.3 and above.
Click to expand...
Click to collapse
http://forum.xda-developers.com/z3-compact/general/loss-drm-keys-t2890936
No, it is the case. Because this thread on Z3 board said Bionz still works for unlocked BL, it is just the low light algorithm disabled. So, I think unlocked BL won't hurt focus performance but low light photo will get worse. On 4.3, Bionz doesn't work on unlocked BL.
Anyway, I'm considering to relock my Z1c now, I've been backup my TA before unlock it.
TheEndHK said:
http://forum.xda-developers.com/z3-compact/general/loss-drm-keys-t2890936
No, it is the case. Because this thread on Z3 board said Bionz still works for unlocked BL, it is just the low light algorithm disabled. So, I think unlocked BL won't hurt focus performance but low light photo will get worse. On 4.3, Bionz doesn't work on unlocked BL.
Anyway, I'm considering to relock my Z1c now, I've been backup my TA before unlock it.
Click to expand...
Click to collapse
To unlock the Xperia™ Z1 boot loader, you must make sure your device is on software build 14.2.A.0.290 (Android 4.3) or later. Unlocking the boot loader on earlier software versions will stop the camera functionality.
Please note! It will only be possible to unlock the boot loader for certain releases. You can check if it is possible to unlock the boot loader of your device in the service menu by following the steps below:
In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
Click to expand...
Click to collapse
From sony official unlock bootloader site. Read it next time, i know what i said.
electrash said:
From sony official unlock bootloader site. Read it next time, i know what i said.
Click to expand...
Click to collapse
Yes, you really need to read it next time carefully because it turns out you donno what are you speaking. We are now talking about the low light algorithm, not the camera or Bionz could work or not on earlier roms.
http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
Plus Sony just updated on their site regarding unlock BL: Also, a custom ROM might not work properly on your device, and certain functions and offerings may cease to work. The performance of the device might also be affected, and you may damage your device permanently. In worst case, unlocking the boot loader will cause physical injuries or material damage, for example, due to the device overheating.
Certain pre-loaded content on your device may also be inaccessible due to the removal of DRM security keys. For high-end devices running recent software versions, for instance Xperia Z3, the removal of DRM security keys may affect advanced camera functionality. For example, noise reduction algorithms might be removed, and performance when taking photos in low-light conditions might be affected. The secure user data partition may also become inaccessible, and you will not be able to get any more official software upgrades if you unlock the boot loader.
Everything you said must be know for EVERY phone from ANY manufacture.
And also, many of this information is for Z3, not Z1.
Please select z1 from drop-down menu and then read.
I dont want to argue with someone who doesn't want to accept other people message.
Sent from my C6903 using XDA Free mobile app
okay man but what will be with us?
i never had a message like.Hey ,dont unlock your bootloader cause u will lose quality!
what i can do if i dont have any TA backup? is there a way to get it fully working again? please reply
When they fixed the camera problem on 4.4.2, they also 'forgot' to remove the DRM files, hence bionz and x-reality fully working with an unlocked bootloader. They ~fixed~ it now on 4.4.4, as both don't work anymore on unlocked bootloader.
dedei said:
When they fixed the camera problem on 4.4.2, they also 'forgot' to remove the DRM files, hence bionz and x-reality fully working with an unlocked bootloader. They ~fixed~ it now on 4.4.4, as both don't work anymore on unlocked bootloader.
Click to expand...
Click to collapse
So if you want to unlock the bootloader, it's best to downgrade to 4.4.2 and do it from there?
saintgein said:
So if you want to unlock the bootloader, it's best to downgrade to 4.4.2 and do it from there?
Click to expand...
Click to collapse
Well, you could downgrade to 4.4.2 and stay there, because back when I had it (with unlocked bootloader and all sony stuff working) and updated to 4.4.4, they stopped working and didn't came back when I relocked my bootloader. I had to reflash the rom to get x-reality and bionz working again.
dedei said:
When they fixed the camera problem on 4.4.2, they also 'forgot' to remove the DRM files, hence bionz and x-reality fully working with an unlocked bootloader. They ~fixed~ it now on 4.4.4, as both don't work anymore on unlocked bootloader.
Click to expand...
Click to collapse
what you mean? the bionz is working now but the x-reality isn't.and i think the DRM keys are also missig if you have UBL and maybe that means lower picture quality and more noise
I'm pretty sure this apply on Z1 as well
As we have threads of experiment before, showing that Z1 is not bad in low light condition but become much worse after unlocking
(I unlocked anyway, for faux sound control and t2w)
dedei said:
Well, you could downgrade to 4.4.2 and stay there, because back when I had it (with unlocked bootloader and all sony stuff working) and updated to 4.4.4, they stopped working and didn't came back when I relocked my bootloader. I had to reflash the rom to get x-reality and bionz working again.
Click to expand...
Click to collapse
Reflash the 4.4.2 rom you mean? And i guess backing up TA will also be important in this case..
saintgein said:
Reflash the 4.4.2 rom you mean? And i guess backing up TA will also be important in this case..
Click to expand...
Click to collapse
Yeah. I have my TA backup and did some extensive testing unlocking and relocking it to see the difference in camera quality.
Can i get back the DRM keys somehow if i not did the TA backup?
Anonymuszymus said:
Can i get back the DRM keys somehow if i not did the TA backup?
Click to expand...
Click to collapse
No. You loose it forever.
If i relock my bootloader and do a repair with pcc i cant get it back?
Sent from my C6903 using XDA Free mobile app
Anonymuszymus said:
If i relock my bootloader and do a repair with pcc i cant get it back?
Sent from my C6903 using XDA Free mobile app
Click to expand...
Click to collapse
Once you loose it, there is no way to get it back. Even if you send it to sony repair centar. There is no way.

Root Achieved!

Update to newest fw, unlock bootloader, , flash this boot and this recovery
When that's done you can flash either su, magisk via TWRP to get root.
Let us know how it goes!
I didn't think Sony had updated their website to support this device for unlocking yet?
alexp999 said:
I didn't think Sony had updated their website to support this device for unlocking yet?
Click to expand...
Click to collapse
With the Sony XZs you could just pick Sony XZ.
FartyParty said:
With the Sony XZs you could just pick Sony XZ.
Click to expand...
Click to collapse
They share the same chipset/platform though. The only difference is the camera.
The XZP is the first Sony with the SD835.
alexp999 said:
They share the same chipset/platform though. The only difference is the camera.
The XZP is the first Sony with the SD835.
Click to expand...
Click to collapse
Duh, I'm dumb!
I guess we have to wait then.
I just hope for a root method without unlocking the bootloader
xshunin said:
I just hope for a root method without unlocking the bootloader
Click to expand...
Click to collapse
No, that won't happen.
FartyParty said:
No, that won't happen.
Click to expand...
Click to collapse
Don't we just have to wait for an exploit?
I tried out my luck unlocking XZ Premium bootloader using older Sony XZ from the list, and I made it
xttp://i64.tinypic.com/2pshxu1.png
But I can't find suitable custom recovery to work with XZ Premium
twrp-3.1.1-0-kagura.img (TWRP for the old XZ) didn't work (using 'fastboot boot twrp-3.1.1-0-kagura.img' command without flashing it).
kemod said:
I tried out my luck unlocking XZ Premium bootloader using older Sony XZ from the list, and I made it
xttp://i64.tinypic.com/2pshxu1.png
But I can't find suitable custom recovery to work with XZ Premium
twrp-3.1.1-0-kagura.img (TWRP for the old XZ) didn't work (using 'fastboot boot twrp-3.1.1-0-kagura.img' command without flashing it).
Click to expand...
Click to collapse
You've unlocked your BL without backing up your TA? You know that you lost your DRM keys?
---------- Post added at 10:31 AM ---------- Previous post was at 10:25 AM ----------
It looks like something good is coming soon:
https://kernel.andro.plus/yoshino.html
https://github.com/AndroPlus-org/android-kernel-sony-msm8998
schickel said:
You've unlocked your BL without backing up your TA? You know that you lost your DRM keys?
Click to expand...
Click to collapse
Err...I don't know if I really need it (or know much about it). I guess it has something to do with Sony proprietary app, music, etc?
If yes, I don't think I really care about it. I don't even have the intention to relock the bootloader...I guess.
kemod said:
I tried out my luck unlocking XZ Premium bootloader using older Sony XZ from the list, and I made it
xttp://i64.tinypic.com/2pshxu1.png
But I can't find suitable custom recovery to work with XZ Premium
twrp-3.1.1-0-kagura.img (TWRP for the old XZ) didn't work (using 'fastboot boot twrp-3.1.1-0-kagura.img' command without flashing it).
Click to expand...
Click to collapse
You're awesome! Thanks for sharing this.
Have you tried twrp-3.0.2-4-kagura.img instead? That always worked for me.
kemod said:
Err...I don't know if I really need it (or know much about it). I guess it has something to do with Sony proprietary app, music, etc?
If yes, I don't think I really care about it. I don't even have the intention to relock the bootloader...I guess.
Click to expand...
Click to collapse
Same here, I don't care about the keys at all since I don't have intentions to relock bootloader and I don't care about the warranty.
I have no desire to wait for them to update tabackup tool .
kemod said:
Err...I don't know if I really need it (or know much about it). I guess it has something to do with Sony proprietary app, music, etc?
If yes, I don't think I really care about it. I don't even have the intention to relock the bootloader...I guess.
Click to expand...
Click to collapse
and @FartyParty
It's not only about proprietary apps. It's about advanced functions for both camera and music. There will be no noise canceling and other algorithms that make the backbone of decent looking pics and videos. That's why everyone is freaked about the TA backup. They're unique and cannot be used from another XZp. Relocking the BL won't do a thing since those keys are buh-bye forever. I for once bought this beauty for the looks, camera, and music (-ish), but I'll miss Xposed FW like crazy (hopefully we'll have xposed for N soon).
Best thing to do now is to wait for a custom kernel that restores those functions - it's just around the corner.
sorry for spamming the forum - got bored at work. still - DRM functionality is pretty important.
Sebi673 said:
and @FartyParty
It's not only about proprietary apps. It's about advanced functions for both camera and music. There will be no noise canceling and other algorithms that make the backbone of decent looking pics and videos. That's why everyone is freaked about the TA backup. They're unique and cannot be used from another XZp. Relocking the BL won't do a thing since those keys are buh-bye forever. I for once bought this beauty for the looks, camera, and music (-ish), but I'll miss Xposed FW like crazy (hopefully we'll have xposed for N soon).
Best thing to do now is to wait for a custom kernel that restores those functions - it's just around the corner.
sorry for spamming the forum - got bored at work. still - DRM functionality is pretty important.
Click to expand...
Click to collapse
I am fully aware what losing the drm-keys does and I simply do not care about it, since you can simply apply the drm-fix and be on your way.
When I got my XZs I rooted it instantly, applied the drm-fix and continued as normal.
For me, root is always #1 and I'm more than happy to lose the drm-keys to get it.
FartyParty said:
I am fully aware what losing the drm-keys does and I simply do not care about it, since you can simply apply the drm-fix and be on your way.
When I got my XZs I rooted it instantly, applied the drm-fix and continued as normal.
For me, root is always #1 and I'm more than happy to lose the drm-keys to get it.
Click to expand...
Click to collapse
Totally agree.. I now found out there is a DRM fix. I thought it would take some time. I'm one day away from my XZp
FartyParty said:
Have you tried twrp-3.0.2-4-kagura.img instead? That always worked for me..
Click to expand...
Click to collapse
Tried 3.0.2-0, 3.0.2-4, 3.1.0-0, 3.1.1-0 kaguras, still no luck via 'fastboot boot <recoveryfilename>'
How about you? Have you unlocked your bootloader yet? Have you found a custom recovery that works? I really really want to root this device.
FartyParty said:
I am fully aware what losing the drm-keys does and I simply do not care about it, since you can simply apply the drm-fix and be on your way.....
Click to expand...
Click to collapse
Well I on the other hand didn't know that
It's been a while since my last Xperia and this is ridiculous, to lose essential features that makes it different to other phone just from unlocking the bootloader? Seriously?
kemod said:
Tried 3.0.2-0, 3.0.2-4, 3.1.0-0, 3.1.1-0 kaguras, still no luck via 'fastboot boot <recoveryfilename>'
Well I on the other hand didn't know that
It's been a while since my last Xperia and this is ridiculous, to lose essential features that makes it different to other phone just from unlocking the bootloader? Seriously?
Click to expand...
Click to collapse
He tagged me so had to reply.
It's not really ridiculous at all. It's a choice you make. Either you keep it locked and use it without root or you unlock it.
With the drm-fix you don't really lose the features.
And not yet but I will as soon as I get my second pink .
I'm screwed....just took a photo to look how bad the result would be after bootloader unlock and it's just the worst experience ever.
No photo could be taken, all shots just gave me literally full blank green picture (no picture at all!). Video works normally I think...
Oh my....what did I just do
kemod said:
I'm screwed....just took a photo to look how bad the result would be after bootloader unlock and it's just the worst experience ever.
No photo could be taken, all shots just gave me literally full blank green picture (no picture at all!). Video works normally I think...
Oh my....what did I just do
Click to expand...
Click to collapse
You have to wait for a custom kernel that has drm-fix included and it will be fine again.
But your warranty is now gone.

temp root for drm keys backup - anybody still interested?

--- edit 2018-11-03 ---
Tools to backup TA partition before bootloader unlock have been released.
Just check the [XZ1c/XZ1/XZp] temp root exploit to backup drm keys implemented thread.
---
Just wondering if there is already drm keys backup procedure for XZ Premium and if not, if there is still some interest to get it done.
I am getting very close with this task with my XZ1 Compact, so just wondering, if I should try to make the exploit compatible also with xzp - i.e. if there is still some interest or not.
The effort to do such thing is not marginal and obviously I cannot test it not having xzp device.
You may check my xz1c thread here: [DEVONLY][XZ1c] exploits for temp root to backup drm keys development
j4nn said:
Just wondering if there is already drm keys backup procedure for XZ Premium and if not, if there is still some interest to get it done.
I am getting very close with this task with my XZ1 Compact, so just wondering, if I should try to make the exploit compatible also with xzp - i.e. if there is still some interest or not.
The effort to do such thing is not marginal and obviously I cannot test it not having xzp device.
You may check my xz1c thread here: [DEVONLY][XZ1c] exploits for temp root to backup drm keys development
Click to expand...
Click to collapse
Yes I'm very interested ! And i think not be alone...
Thank-you for this work , thought it never happen
i can only speak for my previous speaker. DRM backup is the only thing keeping me from rooting my device. i can remember when i got my Z1. only 10 minutes after i unwrapped it drm backup and flashing till dawn.
Yea i'm very very interested ??
I'd definitely be interested in DRM key backup
definatly interested!!
WOULD BE VERY GREATFULL!!!
this is the only thing keeping me from rooting
and im also willing to chip in if it requires and not only me plenty of others
I'm also very interested! Not having a way to backup drm keys is the only thing that keeps me from rooting
hello @j4nn me too im interrested for root my phone but with backup ! i don't want kill my drm keys forever and kill my phone ! thank you for your work !!!
Super interested, if i can backup the drm keys , my xzp will be rooted from day one!
Same here. if you get this done I will kiss you. I miss rooting my phone with keys backed up.
me too
We are getting close, initial test shall be done soon.
Preview video available in my XZ1c exploits thread.
Would we need to downgrade firmware in order to do this?
Sure, fw needs to be downgraded in order to get rootable kernel (which contains a bug that is to be exploited to get a temp root).
Sign me up. I will do the all the tasting. I have a dual sim variant.
@j4nn, count me in 2 plz.
This device is begging for AOSP.
Cheers,
Gerg
greg-uk said:
@j4nn, count me in 2 plz.
This device is begging for AOSP.
Cheers,
Gerg
Click to expand...
Click to collapse
@Beetle84, I thought a backup of the DRM keys is reqd in case I want to go back to stock?
This is the first device I've ever had which claims to be 'open' but appears to be anything but!
Cheers,
Gerg
j4nn said:
Sure, fw needs to be downgraded in order to get rootable kernel (which contains a bug that is to be exploited to get a temp root).
Click to expand...
Click to collapse
Sign me up too mate
Tools to backup TA partition before bootloader unlock have been released.
Just check the [XZ1c/XZ1/XZp] temp root exploit to backup drm keys implemented thread.

your device software cannot be checked for corruption. please lock the bootloader

Hi all,
Recently i have unlocked my Sony XZP device to install the latest update G8142 47.2.A.6.30 as the phone was still on android 8 until now.
i made the update using Sony flash tool (Emma) and it works but i got that annoying message at the boot up:
"your device software cannot be checked for corruption. please lock the bootloader"
Is there any method to get rid of it?
Thanks in advance!
It's normal.
Wysłane z mojego G8142 przy użyciu Tapatalka
Vaith said:
It's normal.
Wysłane z mojego G8142 przy użyciu Tapatalka
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Thanks for reply!
Is there a way to remove this message though?
mlateef said:
Thanks for reply!
Is there a way to remove this message though?
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No, you didnt have to unlock your bootloader to flash stock firmware.
Beetle84 said:
No, you didnt have to unlock your bootloader to flash stock firmware.
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When i opened Emma (flash tool by sony), it said bootloader is locked and you should unlock to see updates so i unlocked.
Btw, aside from this message what are other consequences of unlocking my bootloader? I mean, is there other downsides?
mlateef said:
When i opened Emma (flash tool by sony), it said bootloader is locked and you should unlock to see updates so i unlocked.
Btw, aside from this message what are other consequences of unlocking my bootloader? I mean, is there other downsides?
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Dude... It would have been better to ask before you unlocked. Emma is not the tool to switch to another firmware, you can use flashtool or newflasher for that. These work without unlocking your phone.
During the unlock process, Sony deletes your DRM keys. If you didn't backup your DRM keys before you did the unlock, you lost the keys which are unique to your specific phone.
Without DRM keys your camera quality goes down, some screen enhancements no longer work and some sound enhancement are disabled.
Also your phone now no longer supports widefine l1. Which means no more HD HDR video from Netflix on your phone. And there are probably some apps that now no longer install on your phone because of this.
I'm really angry at Sony that they do this during the unlock process. Especially because their warning is not scary enough to make people think and read some more before doing the unlock.
If you like to have some of these features back, you can go back to Oreo and install a DRM fix after rooting your phone. But no DRM fix is available for Pie yet. Good luck. A lot of information about this is available on this forum.
ishemes said:
Dude... It would have been better to ask before you unlocked. Emma is not the tool to switch to another firmware, you can use flashtool or newflasher for that. These work without unlocking your phone.
Unfortunately i did not know that. What makes me really want to update my phone by any how is the very disturbing wifi problem. On oreo, wifi signal with my xzp is lost every couple of minutes. I posted on sony forums but they did not reply back. They did not even admit having the issue. It was a very bad experience as my first sony phone and i don't think i would repeat it.
During the unlock process, Sony deletes your DRM keys. If you didn't backup your DRM keys before you did the unlock, you lost the keys which are unique to your specific phone.
I don't know what are DRM keys. I will search on the forum to learn more about that. If you can suggest some topics/threads to start with, i will be really grateful.
Without DRM keys your camera quality goes down, some screen enhancements no longer work and some sound enhancement are disabled.
Also your phone now no longer supports widefine l1. Which means no more HD HDR video from Netflix on your phone. And there are probably some apps that now no longer install on your phone because of this.
I'm really upset. Since this was my first experience to install a rom on my phone by myself, i was not aware of these consequences. Seems that to fix the problem with wifi, i lost more features!
I'm really angry at Sony that they do this during the unlock process. Especially because their warning is not scary enough to make people think and read some more before doing the unlock.
If you like to have some of these features back, you can go back to Oreo and install a DRM fix after rooting your phone. But no DRM fix is available for Pie yet. Good luck. A lot of information about this is available on this forum.
I will search in this forum to learn more and if you can direct me to some links, this will be very helpful.
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Thanks for reply! Please check replies in blue above

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