Hi,
I should receive my XZ1c this week. Before unlocking bootloader, flashing recovery and ROM, should I perform a system dump/backup? I heard that flashing may cause lost of DRM keys, so also other stuff may also be lost.
If I have to do a backup, which tool should I use? I also read that after flashing the camera takes green pictures, is that common to all non official ROMs?
Thanks!
fl0wfr said:
Hi,
I should receive my XZ1c this week. Before unlocking bootloader, flashing recovery and ROM, should I perform a system dump/backup? I heard that flashing may cause lost of DRM keys, so also other stuff may also be lost.
If I have to do a backup, which tool should I use? I also read that after flashing the camera takes green pictures, is that common to all non official ROMs?
Thanks!
Click to expand...
Click to collapse
I wouldn't be in a rush to unlock your phone, it comes with all sorts of problems, but the biggest one being breaking the camera.
If you have a contract phone from a major provider there's a chance that you won't be able to unlock it, the unlock feature will be disabled. This is so they don't have to deal with any warranty claims of 'Waaaa, I unlocked my phone and now it's broken'
The battery life out the box is pretty amazing and customisation can be done without root, these were always the main things that drove me to root in the past, so it's not as necessary as it used to be. You can't do a backup of your DRM keys, when you unlock the phone they will be lost and are unrecoverable. With persistance you can mount a DRMfix, that fools the phone into thinking DRM is present and all the higher functions contiune to work as stock. But you can no longer easily update, you will have to reflash everything each time there is a system update. I have rooted my phone and everything works perfectly, but I sort of wish I hadn't now as the benifits are small and the hassle of keeping it up to date with firmware rollouts is huge, in fact I've given up.
If you are determined to go down that route I would recomend paying sToRm// $20 for his Xperiafix. It's the simplest way to do it and his version 3 has come along leaps and bounds from the early versions and as long as you get the right drivers (err, no easy task) and can follow instructions, you'll get there.
For backing up what's on your phone I'd recomend Xperia Transfer, does what is says on the tin.
Unfortunately, there isn't a way to backup the DRM keys yet so should you unlock the bootloader, your DRM keys are completely and irreversibly gone forever.
As for the camera issue, when unlocked, you can either continue to use the Sony ROMs but with a DRM fix (e.g. using Storm's Xperifix tool) or you can use a custom ROM which has a DRM fix. Long story short: whatever ROM you use (official or unofficial), you'll need to make sure you have a DRM fix for it.
Edit: Nevermind, Didgesteve beat me to it!
Thanks for your replies guys!
I bought the phone without contract so no SIMlock
If I flashing back stock ROM I wouldn't be able to get DRM keys back, right? The fact is I love RR-OS ROM, so easy to customize, and I'd like to easily restore my apps with Titanium Backup.
The only reason why I personally would root nowadays is Titanium Backup.
fl0wfr said:
Thanks for your replies guys!
I bought the phone without contract so no SIMlock
If I flashing back stock ROM I wouldn't be able to get DRM keys back, right? The fact is I love RR-OS ROM, so easy to customize, and I'd like to easily restore my apps with Titanium Backup.
Click to expand...
Click to collapse
Unfortunately, that's correct - going back to stock won't restore the DRM keys. Once they're gone, they're gone forever.
fl0wfr said:
Thanks for your replies guys!
I bought the phone without contract so no SIMlock
If I flashing back stock ROM I wouldn't be able to get DRM keys back, right? The fact is I love RR-OS ROM, so easy to customize, and I'd like to easily restore my apps with Titanium Backup.
Click to expand...
Click to collapse
DRM keys gone forever, yup.
Titamium will work on magisk rooted phone, but you might struggle to get some of the apps working on a new OS.
You'll be in for less headaches if you can bite the bullet annd do a clean install.
But you're in good hands with russel5's RR build, he's really helpfull and takes part in the thread.
If I root using Magisk, will I have to unlock bootloader?
fl0wfr said:
If I root using Magisk, will I have to unlock bootloader?
Click to expand...
Click to collapse
Yes - you'll have to unlock the bootloader because in order for Magisk to work because it modifies your phone's boot partition (and it can only really do that if you unlock your phone's bootloader).
moofesr said:
Yes - you'll have to unlock the bootloader because in order for Magisk to work because it modifies your phone's boot partition (and it can only really do that if you unlock your phone's bootloader).
Click to expand...
Click to collapse
Okay but I won't have to flash ROM or install another bootloader?
fl0wfr said:
Okay but I won't have to flash ROM or install another bootloader?
Click to expand...
Click to collapse
You don't have to flash another ROM - in fact, you can stay on the stock Sony ROM if you prefer. But you'll want to flash something (DRM fix) because the moment you unlock your bootloader, your camera will stop working.
For what it's worth, you can't install another bootloader.
moofesr said:
You don't have to flash another ROM - in fact, you can stay on the stock Sony ROM if you prefer. But you'll want to flash something (DRM fix) because the moment you unlock your bootloader, your camera will stop working.
For what it's worth, you can't install another bootloader.
Click to expand...
Click to collapse
Damn... The camera issue always happens when unlocking bootloader?
fl0wfr said:
Damn... The camera issue always happens when unlocking bootloader?
Click to expand...
Click to collapse
I'm afraid so! Sony are simultaneously very open-source friendly and very dev-community hostile.
That's why the DRM keys are such a big deal for Sony devices and why everyone talks about DRM fixes
The camera on the XZ1C uses some proprietary elements and the moment you unlock your bootloader, the proprietary elements stop working and every photo you take will just be green.
In an ideal world, we would backup the DRM keys before unlocking the bootloader and then restore the DRM keys after unlocking the bootloader and the camera (and other DRM key dependent phone features) would be working as usual again. However, the 2017 line of devices has no working method of DRM backup-restore, hence the need for DRMfix to 'trick' the phone into thinking the DRM keys still exist.
Well I guess I'll stick to the stock ROM. I'll try at least SMS/MMS restore using Titanium, I hope it won't need root...
Thanks for your replies, I really appreciate it!
fl0wfr said:
Well I guess I'll stick to the stock ROM. I'll try at least SMS/MMS restore using Titanium, I hope it won't need root...
Thanks for your replies, I really appreciate it!
Click to expand...
Click to collapse
Xperia transfer is an easy way to transfer texts, files and programs (and settings)
Didgesteve said:
Xperia transfer is an easy way to transfer texts, files and programs (and settings)
Click to expand...
Click to collapse
Interesting, I'll give a try!
Didgesteve said:
... You can't do a backup of your DRM keys, when you unlock the phone they will be lost and are unrecoverable....
Click to expand...
Click to collapse
Your post is from July 2018, while since May 2018 there is a topic regarding XZ1C DRM keys backup & restore here on XDA:
https://forum.xda-developers.com/xperia-xz1-compact/development/devonly-exploits-temp-root-to-backup-t3795510
Or do I miss something I haven't gone through all the 40+ pages of the topic above yet, but it looks like a proper backup&restore solution, not a drmfix only that fools the system.
Doman said:
Your post is from July 2018, while since May 2018 there is a topic regarding XZ1C DRM keys backup & restore here on XDA:
https://forum.xda-developers.com/xperia-xz1-compact/development/devonly-exploits-temp-root-to-backup-t3795510
Or do I miss something I haven't gone through all the 40+ pages of the topic above yet, but it looks like a proper backup&restore solution, not a drmfix only that fools the system.
Click to expand...
Click to collapse
The exploit thread has indeed been going since May, but when I wrote the post in July there was still no easily accessible way for the average user to attempt the exploit.
Have you tried to back up your DRM keys with the exploit? Good luck with that.
But with Pie we don't need any exploit, the camera is fixed without any DRM manipulation.
Didgesteve said:
The exploit thread has indeed been going since May, but when I wrote the post in July there was still no easily accessible way for the average user to attempt the exploit.
Have you tried to back up your DRM keys with the exploit? Good luck with that.
But with Pie we don't need any exploit, the camera is fixed without any DRM manipulation.
Click to expand...
Click to collapse
Appreciate the explanation. I haven't done DRM backup yet. I just got my XZ1C this week, so now I gain the knowledge and prepare for modifications. I wonder if I need the DRM backup for the future though, as I plan to use Resurrection Remix or AEX, either dedicated or Treble version. But I think I will try to back it up anyway just in case.
And what do you mean about Pie in the last sentence? With Pie and bootloader unlock we still loose TA partition and DRM, but the camera still works fine? Or what happens?
Doman said:
With Pie and bootloader unlock we still loose TA partition and DRM, but the camera still works fine? Or what happens?
Click to expand...
Click to collapse
With Pie the camera works with unlocked bootloader, no fix required. So you can unlock and root and don't need any 'fix'
Sony obviously don't want anyone making money out of DRM (Xperiafix)
Related
I believe that with some work, the bootloaders could be exploited.
After reading this blog, Dan has managed to either bypass or unlock bootloaders based on the Qualacom chipset.
Motorola http://blog.azimuthsecurity.com/2013/04/unlocking-motorola-bootloader.html APQ
Samsung Galaxy S4 http://blog.azimuthsecurity.com/2013/05/exploiting-samsung-galaxy-s4-secure-boot.html
I'm thinking something along the lines of how the S4 was exploited for the reasons to preserve the DRM keys for Sony related application compatibility and to keep the Bravia Engine dynamic contrast algorithm intact. Since even unlocking it the official way removes these features.
Hopefully we can get a discussion going to get more developers to try and take a look at this.
MarlowXim said:
I believe that with some work, the bootloaders could be exploited.
After reading this blog, Dan has managed to either bypass or unlock bootloaders based on the Qualacom chipset.
Motorola http://blog.azimuthsecurity.com/2013/04/unlocking-motorola-bootloader.html APQ
Samsung Galaxy S4 http://blog.azimuthsecurity.com/2013/05/exploiting-samsung-galaxy-s4-secure-boot.html
I'm thinking something along the lines of how the S4 was exploited for the reasons to preserve the DRM keys for Sony related application compatibility and to keep the Bravia Engine dynamic contrast algorithm intact. Since even unlocking it the official way removes these features.
Hopefully we can get a discussion going to get more developers to try and take a look at this.
Click to expand...
Click to collapse
you are aware you can root and back up your drm keys right....
jug6ernaut said:
you are aware you can root and back up your drm keys right....
Click to expand...
Click to collapse
From what I understand once you restore your DRM keys from your backed up TA partition. It effectively relocks your bootloader thus your custom rom or kernel that isn't signed will not boot.
Checking at the FAQ of the Backup TA partition confirms this.
DevShaft said:
Q: Can I restore my TA while running a non-stock ROM or kernel?
A: Yes, but it will soft-brick your device and you need Sony PC Companion to fix it by flashing stock firmware. Best is to first return to a complete stock ROM and kernel before restoring the TA.
Q: Will it bring my DRM keys back on a non-stock ROM or kernel?
A: No, only on a complete stock ROM and kernel.
Click to expand...
Click to collapse
MarlowXim said:
From what I understand once you restore your DRM keys from your backed up TA partition. It effectively relocks your bootloader thus your custom rom or kernel that isn't signed will not boot.
Checking at the FAQ of the Backup TA partition confirms this.
Click to expand...
Click to collapse
Well that effectively rules out simply restoring the DRM keys. Looks like its time for Plan B.
I am new to the nexus 7.
Can I root without unlocking the broader?
What is the side effect of unlocking the boot loader?
Is there existing method to root without installing customer recovery?
Thanks
macaumen said:
I am new to the nexus 7.
Can I root without unlocking the broader?
What is the side effect of unlocking the boot loader?
Is there existing method to root without installing customer recovery?
Thanks
Click to expand...
Click to collapse
There is currently no known way to root without unlocking the bootloader and using a custom recovery.
Unlocking the bootloader allows you more control over the tablet. Specifically to install custom recovery, ROMs, etc. Most of the benefits from an unlocked bootloader are things you do from a custom recovery, not through the bootloader itself. The only real negative 'side effects' are that you lose some of the safety benefits, since you can do dangerous things if you don't know what you are doing, and that it may void your warranty.
So, if want to root, I must unlock bootloader?
Well I still get ota with bootloader unlocked?
macaumen said:
So, if want to root, I must unlock bootloader?
Well I still get ota with bootloader unlocked?
Click to expand...
Click to collapse
1. Yes
2. Technically you can, but not recommend; just wait for the rooted stock and flash that.
teh roxxorz said:
1. Yes
2. Technically you can, but not recommend; just wait for the rooted stock and flash that.
Click to expand...
Click to collapse
Regarding your #2, there is no reason not to unlock the bootloader to get OTA updates. The only thing that breaks OTA is custom recovery.
phonic said:
Regarding your #2, there is no reason not to unlock the bootloader to get OTA updates. The only thing that breaks OTA is custom recovery.
Click to expand...
Click to collapse
Completely correct. I just said not to do it, cause he seems less experienced, and from my experience, they get freaked out afterwards trying to put it back on. So trying to save him a headache, lol.
I recommend staying stock unless you absolutely need a specific root required app.
Right now there isn't a reason for root access except titanium backup.
I do recommend, however, to go ahead and unlock. It will wipe your device including personal data, so might as well get that out of the way now before you risk losing something important.
You can easily flash a custom recovery and root anytime after that, but I would wait until knowledgeable devs figure out the device a little more first.
Sent from Nexus 7 FHD from XDA Premium HD
player911 said:
I recommend staying stock unless you absolutely need a specific root required app.
Right now there isn't a reason for root access except titanium backup.
I do recommend, however, to go ahead and unlock. It will wipe your device including personal data, so might as well get that out of the way now before you risk losing something important.
You can easily flash a custom recovery and root anytime after that, but I would wait until knowledgeable devs figure out the device a little more first.
Sent from Nexus 7 FHD from XDA Premium HD
Click to expand...
Click to collapse
I'm not sure why you would suggest people not to root now. You mentioned a very good reason to do so - Titanium Backup. Not only is it useful for backups in general, but it's also a lifesaver for copying apps and their data from one device, like someone's old N7, to their new N7.
While I would certainly agree that people should wait before flashing custom ROMs, kernels, hacks, etc., nothing is going to change with rooting your N7 today versus a week or month from now. All the pros and cons will still be the same.
phonic said:
I'm not sure why you would suggest people not to root now.
Click to expand...
Click to collapse
They guy doesn't need root. He also doesn't understand root. So his chances of softbricking are good, and then, instead of us trying to talk him out of rooting, we now have to talk him through how to fix it.... .. Can we count on you to provide this support since your are so OK with him rooting now?
tweaked said:
They guy doesn't need root. He also doesn't understand root. So his chances of softbricking are good, and then, instead of us trying to talk him out of rooting, we now have to talk him through how to fix it.... .. Can we count on your to provide this support since your are so OK with him rooting now?
Click to expand...
Click to collapse
Neither you nor I have any idea what he needs or doesn't. He hasn't said anything other than asking some basic questions about the process. There are numerous guides on here that walk people through rooting step by step. There are also a handful of people who have soft bricked their device and asked for and received help. And yes, I have assisted people with similar issues in the past. Everyone on this board has at one point in their lives screwed something up - that's how we learn.
In any case, my point was that there is no clear reason for him not to do it if he wants to. The device is pretty forgiving unless he kills the bootloader.
Sorry if this is a dumb question. Can someone please explain what it means that Bravia in Album will no longer work if I unlock the bootloader? I've been reading through many resources and have seen some old and new reports that either make no sense or contradict one another. This is my first Sony device so I'm not used to having to backup a TA partition or anything like that. My goal is to have a fully functional rooted stock firmware. I'm mainly sticking with stock to preserve the camera app since I will use it the most. From the sound of it, It seems like I'll be breaking something by rooting my device. Is this the case? If so, what gets broken and is there a way to root the stock firmware otherwise?
Xentar712 said:
Sorry if this is a dumb question. Can someone please explain what it means that Bravia in Album will no longer work if I unlock the bootloader? I've been reading through many resources and have seen some old and new reports that either make no sense or contradict one another. This is my first Sony device so I'm not used to having to backup a TA partition or anything like that. My goal is to have a fully functional rooted stock firmware. I'm mainly sticking with stock to preserve the camera app since I will use it the most. From the sound of it, It seems like I'll be breaking something by rooting my device. Is this the case? If so, what gets broken and is there a way to root the stock firmware otherwise?
Click to expand...
Click to collapse
Rooting doesn't require unlocking bootloader. Unlocking bootloader is when you will need to start worrying about TA and DRM and such. Just root using this method and you won't need to worry about backing up TA first: http://forum.xda-developers.com/showthread.php?t=2784900
camaro is right, as long as the root exploit works (i.e. as long as the upstream aosp kernel bugfix isn't merged) an unlocked bootloader is only required to flash a different kernel.
Thanks guys, every thing worked great
camaro322hp said:
Rooting doesn't require unlocking bootloader. Unlocking bootloader is when you will need to start worrying about TA and DRM and such. Just root using this method and you won't need to worry about backing up TA first: http://forum.xda-developers.com/showthread.php?t=2784900
Click to expand...
Click to collapse
So I'm probably going to go the next step and unlock the bootloader soon. I'll do a TA backup before, for sure. Does unlocking the bootloader break any of the apps or services?
Xentar712 said:
So I'm probably going to go the next step and unlock the bootloader soon. I'll do a TA backup before, for sure. Does unlocking the bootloader break any of the apps or services?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2745704
Sent from my D5503
camaro322hp said:
http://forum.xda-developers.com/showthread.php?t=2745704
Sent from my D5503
Click to expand...
Click to collapse
Cool, thanks! So basically just the X-reality(Bravia engine) will be gone. Not sure if I need that so maybe I'll take a spin with it off for a few days and see if I like it still. I read somewhere that Netflix was broken from it but that report was old so I'm guessing it's fixed now.
Xentar712 said:
Cool, thanks! So basically just the X-reality(Bravia engine) will be gone. Not sure if I need that so maybe I'll take a spin with it off for a few days and see if I like it still. I read somewhere that Netflix was broken from it but that report was old so I'm guessing it's fixed now.
Click to expand...
Click to collapse
You may want to resurrect that old thread to see if anyone else has input. I never unlocked bootloader as the stock ROM rooted was sufficient for me, so I can't say for sure what gets lost.
Sent from my D5503
Hi all,
Appreciate this may have been asked several times in different ways. However, I've got in over my head with this one so want to make sure the method is right for how I initially rooted my phone.
Essentially I followed the cyanogenmod wiki page which showed me how to unlock the bootloader and install cyanogenmod.
However, I now need to revert back to stock. Problem i'm having is that any guide I find talks about TA back ups (not mentioned in the original guide) and uses a tool called flashtool.
I used the flashboot method for my install so i'm just a bit confused as to how to go back. Is it true that Sony will be able to tell I modified it as I may need to return it for a warranty issue.
Useful info:
UK phone
Not locked to a network
Many thanks
They will if you didn't backup your DRM keys and are unable to restore them after relocking your bootloader
Ahh thats really irritating that their main guide mentions nothing about DRM then.
What am I likely to have lost in terms of losing that partition then? Will I definitely have lost it doing it via fastboot? It seems strange that they don't mention anything about that.
What does it mean by a DRM key anyway? is it a code for something or an actual bit of software?
How would I go about getting it back to stock?
Many thanks
You can back to stock without DRM keys but... Still you will don't have things like bionz and x reality if you don't have backup DRM keys you are screwd because you lost it forever you can't use DRM keys from other z1c
mosespl said:
You can back to stock without DRM keys but... Still you will don't have things like bionz and x reality if you don't have backup DRM keys you are screwd because you lost it forever you can't use DRM keys from other z1c
Click to expand...
Click to collapse
Thanks mosespl.
What is the best method of going back to stock when originally I used flashboot? Looking to relock the bootloader too.
The sony stuff was rubbish anyway, I got nothing but bug bug bug with it, its the main reason I rooted. What is a DRM key? I saved a code that I needed to unlock but i'm guessing that isn't it?
DRM keys are write on specific partition on your phone which is unvisible and once you unlock your bootloader without backup DRM keys you lost it. And if you relock your bootloader you won't be able to use bionz processor (photos in bad condition will be worst) and x reality. In cross device section in thread for stock Roms to revert this options but I don't know if its working you need to check. But in many thread was posted that before unlock bootloader everyone have to back up DRM keys I don't know what about good program to unlock or relock bootloader but everyone uses flashtool I think
This is the thread that mosespl is referring to. It's quite lengthy but might be worth reading and trying. You've nothing to lose I suppose (as you've already lost them).
http://forum.xda-developers.com/showthread.php?p=56541777
Thanks guys, i'll check it out.
I wish I had that guide in the first place! Can't believe such a big rom didn't even hint at it!
Hi all,
Thread title is pretty self-explanatory.
I am still running KitKat 4.4.4 on my Z1C, and have not tried the 5.1 update ever, but I am wanting to give it a go (I tried 5.0 in May last year and was not satisfied so went back to KitKat but had to flash a ROM and start from scratch)
I'd like to be able to backup my KitKat ROM as it is now, with all my apps and configuration, etc etc. But how can I do this without root? I don't want to root my phone as I have some apps which detect root and will not work without it. Is there a "recovery" mode I can enter into without root, and if so how do I enter it?
Alternatively, is there an easy way I can:
* Root my Z1C
* Backup the KitKat ROM through Recovery
* Unroot
* Install the Lollipop 5.1 update?
Any help would be great.
Thanks
alex_ncfc said:
Hi all,
Thread title is pretty self-explanatory.
I am still running KitKat 4.4.4 on my Z1C, and have not tried the 5.1 update ever, but I am wanting to give it a go (I tried 5.0 in May last year and was not satisfied so went back to KitKat but had to flash a ROM and start from scratch)
I'd like to be able to backup my KitKat ROM as it is now, with all my apps and configuration, etc etc. But how can I do this without root? I don't want to root my phone as I have some apps which detect root and will not work without it. Is there a "recovery" mode I can enter into without root, and if so how do I enter it?
Alternatively, is there an easy way I can:
* Root my Z1C
* Backup the KitKat ROM through Recovery
* Unroot
* Install the Lollipop 5.1 update?
Any help would be great.
Thanks
Click to expand...
Click to collapse
No expert, but AFAIK you can't have recovery without root. You could backup with Google app, and restore when you update. That's probably your best bet officially. Anyway, backing up in recovery will make a backup of your whole system, which will flash you right back to KK when you restore, unless you choose to restore data only, in which case you might as well just use Google backup, (and anyway you might get compatibility issues with app data). If you want to save your current image to go back to in case you don't like the update, just root, backup in recovery, and, when you restore it, you can unroot to use your anti-root apps again.
levone1 said:
No expert, but AFAIK you can't have recovery without root. You could backup with Google app, and restore when you update. That's probably your best bet officially. Anyway, backing up in recovery will make a backup of your whole system, which will flash you right back to KK when you restore, unless you choose to restore data only, in which case you might as well just use Google backup, (and anyway you might get compatibility issues with app data). If you want to save your current image to go back to in case you don't like the update, just root, backup in recovery, and, when you restore it, you can unroot to use your anti-root apps again.
Click to expand...
Click to collapse
Thanks very much for your fast response
I would like to be able to make a backup of my whole system image in recovery (I have experience of this backup and restoring of images on my old X10 phone) The problem is I don't know which is the best method to go about rooting, but unrooting is something that sounds even more complex. Would it be easy to do on this phone?
Thanks
alex_ncfc said:
Thanks very much for your fast response
I would like to be able to make a backup of my whole system image in recovery (I have experience of this backup and restoring of images on my old X10 phone) The problem is I don't know which is the best method to go about rooting, but unrooting is something that sounds even more complex. Would it be easy to do on this phone?
Thanks
Click to expand...
Click to collapse
On Kk I'm pretty sure Doomlord's rootkit works. Couldn't be easier. Search the forums here.
---------- Post added at 04:50 PM ---------- Previous post was at 04:22 PM ----------
alex_ncfc said:
Thanks very much for your fast response
I would like to be able to make a backup of my whole system image in recovery (I have experience of this backup and restoring of images on my old X10 phone) The problem is I don't know which is the best method to go about rooting, but unrooting is something that sounds even more complex. Would it be easy to do on this phone?
Thanks
Click to expand...
Click to collapse
Try this - http://forum.xda-developers.com/showthread.php?t=2784900 also - http://d-h.st/f4p
levone1 said:
On Kk I'm pretty sure Doomlord's rootkit works. Couldn't be easier. Search the forums here.
---------- Post added at 04:50 PM ---------- Previous post was at 04:22 PM ----------
Try this - http://forum.xda-developers.com/showthread.php?t=2784900 also - http://d-h.st/f4p
Click to expand...
Click to collapse
Thank you very much for your response.
I see from the link you sent that it seems pretty straightforward to root the phone, but how do I go about reversing the process once I have backed up my current KK ROM configuration??
Also I posted something similar on the official Sony forums - one of the mods replied saying that if I root I will "have to unlock the bootloader, which will remove the DRM keys, and unless you back them up, Sony apps and services won't work and the camera will be affected, same as xreality, etc." Is this the case??
Thanks
alex_ncfc said:
Thank you very much for your response.
I see from the link you sent that it seems pretty straightforward to root the phone, but how do I go about reversing the process once I have backed up my current KK ROM configuration??
Also I posted something similar on the official Sony forums - one of the mods replied saying that if I root I will "have to unlock the bootloader, which will remove the DRM keys, and unless you back them up, Sony apps and services won't work and the camera will be affected, same as xreality, etc." Is this the case??
Thanks
Click to expand...
Click to collapse
Not sure what they're getting at. You definitely don't have to unlock the bl if you don't want to. If you want to use a custom kernel or aosp / cm you would need to, and you will lose drm keys etc, but there are backup and restore options for that too. I've never unrooted, but I think it's just a 1-click thing. The root tools I linked probably have the option built in, and I've seen it on Flashtool options also.
There were some applications that could hide root state from the certain apps that didn't work with root. I don't remember exactly the name of the apps because I never needed them but you can try searching.
Edit: Here's an xposed module for example http://forum.xda-developers.com/xposed/modules/mod-rootcloak-completely-hide-root-t2574647
IMAO without root you will not see part of system, it is protection against stupidity of users.
Surely root may be reverted, it is the most simple thing under the Sun.
For myself I'd rename su to other name and probably it would be enough while I'd have root till hands at any moment.
BTW:
Seeing how much crap they nowadays load into phone I don't imagine to have my phone not rooted.
Unlocking BL is different story. That opens whole lot of new area, sometimes risky, too.