The houdini folder - Xperia Z2 Q&A, Help & Troubleshooting

Right then this is a strange one, as the thread title implies i have a dodgy folder that has done a dissapearing act on me........ the strange bit is, it has reappeared.
This may or may not be related to the ta folder/drm keys, im not a developer, i honestly have no idea.
Anyway, i'll try and keep it as brief as possble. I've had my z2 for about a month, i unlocked the bootloader and rooted a couple of nights ago, didn't do it sooner as didnt want to lose drm keys. All the time i had locked bootloader i was searching for a way to try and get the ta/drm onto my laptop from my phone, with no luck lol.
While doing this i came to the (probably wrong) conclusion the the ta/drm file we need to back up is called 'mmcblk0p1, and can be found on root of phone in, dev- block- platform- msm_sdcc.1- by name.... scroll down, its the one called TA, 3 things made me believe this was it
1... Thats where the guide for backing up ta on z1 leads you
2... Its where all the ta backup apps go
3.... Its called TA
I finally gave up and unlocked my bootloader and rooted as after almost a month i was more aware of what got affected, i should point out now that everytime i tried to get this file, when i clicked platforms there were 2 folders to choose from, msm_sdcc.1 and msm_sdcc.2, i had a look in the second folder and it appeared to have the same contents as the first one but there wasnt a 'by name' folder.
After unlocking the bootloader, i tried to get to it again....when i clicked platforms there was only msm_sdcc.1, i opened it, looked the same, went by name, scrolled down n there was the TA mmcblc0p1. I tried this because id read a few things saying that TA/DRM didnt get wiped on z1 after unlocking bl on android 4.4..... so i figured as the msm_sdcc.2 had vanished then that must be what we needed to back up.... makes sense right?
So anyway, went n did my other checks regarding bootloader unlocking and stuff functioning, then flashed recovery and rooted, now i dont know if it was the recovery, root or factory reset but something has made msm_sdcc.2 reappear on my phone and as if that aint strange enough, its 50/50 as to wether i can open the folder or phone freezes, and if i can open it and try to do anything with mmcblk0p1 my phone just dies.... well passes out, screen freezes and becomes unresponsive then goes blank, after a while it will reboot and everythings lagging, i have discovered the cause to be that upon trying to do anything with msm_sdcc.2 or mmcblk0p1 located inside, root explorer devours all my damn memory, i have approx 10 gig free beforehand and after its froze and rebooted i have 0 free memory and upon checking apps rootexplorer has 10gig of data
What the hell is this folder and why does it crash my phone??? Anyone have any thoughts on this??
Sorry for long post n poor grammer/punctuation

No one have any thoughts on this?
I was wondering, is it possible that the drm keys dont get wiped as such, they just cant be activated on an unlocked bootloader? I wonder this because my x reality clearly isnt making any difference (as expected on ul bl) but ive read some comments saying its working again if you relock the bootloader

If your asking to make Fake DRM keys or tricking the system into thinking they are there then that is not posible
Sent from my D6503 from XDA Premium 4 mobile app

Envious_Data said:
If your asking to make Fake DRM keys or tricking the system into thinking they are there then that is not posible
Sent from my D6503 from XDA Premium 4 mobile app
Click to expand...
Click to collapse
How on earth did you come to that conclusion????
Read what i wrote again, i had a folder deleted when i unlocked the bootloader, then later (not sure when, it would be from either flashing doomlords advanced stock kernel, rooting or flashing doomlord v5 kernel) said folder reappeared, but i cant do anything with file inside, trying to copy them to my computer, move them inside the phone or even just just trying to open it to view, crashes my phone..... i want to know what this folder is/contains.
Because of where it is located and that it got wiped when i unlocked the bootloader, im thinking maybe its got something to do with the drm keys, then i got to thinking maybe it actually is the drm keys and they need to verify that the bootloader is locked before working (i suppose similar to an app doing a license check), this could possibly explain how some people who have unlocked and rooted claim to have xreality working again if they relock bootloader
Hopefully that was a bit clearer

Related

[Q] can someone please break down the current root situation?

i'm thinking about getting this phone instead of the note 3 (coming from note 2) and wondering what the deal is with root, unlocking the bootloader etc?
ta
congratz to 1000 post... the deal? What u wanna know?
Root, well to root on locked bootloader is to make an TA Backup where all your drm keys are stored. These are removed when unlocking the bootloader. The benefit of doing this backup is that you then can restore these keys if needed in the future. And also you can run apps and access features that requires the device to be rooted.
I noticed you are in some level of familiar with custom roms and root as I checked your previous post here at XDA running some sammy roms.
But the benefits of unlocking the bootloader? You can flash roms with ease along the features of being rooted as above.
ah sorry. i didnt meant it in that sense. i had to unlock the bootloader on my old htc desire (samsung since then and no lock). i wondered what the deal was in getting it done?
on the samsungs i've just flashed a custom recovery and that's it. easy as pie but way back when i had to use a goldcard to get the desire unlocked and more steps in getting s-off
is it easy or tricky with the sony? if i get this phone i'd be needing to root straigt away to put my TB backups back on so wouldnt have any drm keys to backup yet
tommo123 said:
ah sorry. i didnt meant it in that sense. i had to unlock the bootloader on my old htc desire (samsung since then and no lock). i wondered what the deal was in getting it done?
on the samsungs i've just flashed a custom recovery and that's it. easy as pie but way back when i had to use a goldcard to get the desire unlocked and more steps in getting s-off
is it easy or tricky with the sony? if i get this phone i'd be needing to root straigt away to put my TB backups back on so wouldnt have any drm keys to backup yet
Click to expand...
Click to collapse
The TA backup does make a backup of alla the DRM keys, as the Bravia engine...and bla bla bla what other features there are.
It is easy to unlock the bootloader IF you not running Windows 8. On W8 it is a bit tricky because you have to reboot the OS in test mode disabling the driver verification in order to be able to install fastboot driver and S1 driver. Other than that, it should be done in about 30 sec if there's no issue :good:
and typically i'm on win 8 (though wish i wasn't at times).
cheers for the info. wonder if it would work with win7 via VM
well, i ordered it, and put my old note 2 for sale on mazuma
As a fellow Galaxy Note user here, Rooting the ZU is easy...
Unlocking the bootloader is another.. It is pretty much straightforward from the tutorials on this forum but you have to watch out of your TA partition..
I have gone as far as backing up my TA but I haven't unlocked my Bootloader yet.. I don't feel the need for a custom ROM yet.
Stock, Rooted .532 ROM with Xposed Framework serves most of my needs.. Plus seamless connection of the Dualshock controller which is a definite plus for me!
cool. i've read the guide and i get that the TA partition holds DRM info but isn't thatonly for purchases etc? if it's lost what's the worst case scenario? brick or you lose access to paid for content?
tommo123 said:
and typically i'm on win 8 (though wish i wasn't at times).
cheers for the info. wonder if it would work with win7 via VM
Click to expand...
Click to collapse
I have no idea how stable it gonna be to make an operation like this? ..because you have to manually unmount and mount the choosen device in to VMware. Now I don't have VMWare Workstation installed as I recently moved to Windows 8 Enterprise. ..big mistake when doing this kind of operations. It took me about an hour to figure out how to properly disarm all this stupid verification of drivers and certificates and bla bla bla microsoft features. In these moments I love my linux mint.
The TA backup benefits from that first of all you do make a backup of your DRM keys if you would like to restore them in the future if going back to stock rom and for example sending it for service covered warranty. You don't necessarily lose your warranty but there might be times when the service center denies your request as they see that the device has been tempered with. I think I read that it does also relock your bootloader but I might need to confirm that..not entirely sure.
If you lost the DRM keys or the backup? Ehm.. yeah no more bravia engine, Track ID and the other apps provided by sony wont work. Other than that, It's not that big of a deal but It's good to have a backup just in case!
ah, good to know then. cheers.
i suppose i could throw a wubi ubuntu install on or something i guess.
Yes, the TA partition has your UNIQUE DRM info needed for Sony's proprietary software to work. (aka bravia engine and xreality) take note of the word UNIQUE.. you cannot use a TA backup from another phone.. So you really have to back it up.. A few minutes of effort to back it up is worth spending rather than losing your keys forever..
As I've read from one of the posts on other threads, restoring the TA partition would not relock your bootloader.. They are two separate steps.. You have to manually relock it after restoring.. Which as far as i understand is fairly easy although I haven't done it myself..
Sent from my C6833 using XDA Premium 4 mobile app

[Q] TA partition, DRM keys, what's the full story?

Hi everyone,
I'm hoping to use this thread to get the full story on the whole DRM keys issue that comes with unlocking your bootloader. For myself to get a clear picture, but also for others who are interested.
So far I've only been able to find bits and pieces about what exactly the DRM keys do, and how to handle them, I'll start off by writing what I (think I) know, please correct me if I'm wrong:
What do the DRM keys do?
So far I found out they're needed to run the Walkman app, which is understandable as it involves music purchases which are DRM protected.
Personally, I couldn't care less about this app not working anymore, your opinion might differ.
I also heard they're needed for the 'Bravia engine', now this is something that concerns me more, so far I haven't been able to find out what exactly is this 'bravia engine', I would go on a limb and say it's the screen rendering engine, and removing the DRM keys could completely mess up the colors or something, but this is a pure guess, and could be completely wrong. This is the first point which needs clarification.
Can the DRM keys be backed up?
Until recently, no, since the DRM keys reside in the 'TA partition', backing them up was something which required root access, and then again root access was something that could only be obtained by unlocking the bootloader, which in turn wipes the 'TA partition' before you could back it up.
However, since recently, there's a way:
Thanks to our famous friend geohot, we have recently got the ability to root our tablet using his 'towelroot' app. It works by breaking into a kernel vulnerability present on the stock ROM, and inserting root access that way, thus not touching the bootloader (which effectively remains locked). Since we now have root access I was able create a backup of my TA partition, which I've safely backed up to google drive, just in case.
Here are the threads I used to get me this far:
Root my device
Backup TA partition
Install XZDualRecovery
So now I have a rooted stock ROM, XZDualRecovery (which includes TWRP recovery which I prefer), and backed up TA partition.
Can the DRM keys be restored?
According to Install XZDualRecovery"]the thread of the 'TA Backup tool'[/URL] , yes. I haven't tried this out myself, so no personal experience here.
It also says that restoring the keys effectively re-locks your bootloader, which brings you back to zero off course...
Note: The thread explicitly says that trying to restore a 'TA backup' which was created on another device, will effectively hard-brick your device!
For this boils down to 2 options:
Either you can live with a locked bootloader, and have the DRM keys in place
Or you unlock it, and use the device without DRM keys
Off course to make this choice, we have to fully understand what exactly stops working when DRM keys are removed.
Hi, i tried alrdy to restore DRM after i flashed castor CM11 on my Tablet, but i softbricked them. I was in hope that this way will give me a chance to use Sony aps etc.
I restored with Flashtool , now is all ok and Running without DRM. I mean the TA Partition mess up with Bootloader so your Device will not Boot after u try to restore them.
Except on Stock ROM..
ive also came to the same conclusion but heres the thing...ive got an Ultra Z which i had the bootloader unlocked without backing up the TA Partition. Ive installed TWRP, wiped it clean and flashed PA Rom. Then decided to go back to Stock and now everything works as it should. Bravia engine is enabled, walkman app works and the OTA is working as it should. So what am i missing here?

Best practices for out of box 4.4.4 tablet root/backup/bootloader etc

I just bought a Z3CT(SGP612) and am a bit confused.
The first big question is about DRM key thing. Why do I care about them if I don't have any other Sony devices (Playstation etc.) and probably won't ever. I read in one thread that these keys may be non-recoverable, but in another thread it was said they could be saved and restored. What are the best practices for doing this?
Second, and I'm stuck here until this thread works, or further research surfaces the answer. I just bought this unit, it's brand new out of box. I'm probably the last man on earth to buy one, but....The device is nagging me to update, but I think that may end in tears. I'm afraid Sony official updates may render the device unrootable, or permanently lock the bootloader forcing me to beg Sony to do whatever I want to my own device. I think on 4.4.4 there is a way to unlock the bootloader without begging Sony to do it. The device is presently 4.4.4, build 23.0.1.A.0.167. The nagging update will take me to 23.0.1.A.3.12. I'm assuming there may be further updates beyond that to get to 23.4.xxxx. Should I accept this, and do any other updates, or proceed directly to one of the pre-rooted stock ftf files (sorry, what is ftf and acronym for?). I'd like to get to the latest 5.11 and have the ability to run adaway, make backups, have proper working SD card and USB OTG, and maybe run a few Xposed apps all of which mean I need root. As it's a virgin device I don't care about if I have to wipe the device in the process.
http://forum.xda-developers.com/crossdevice-dev/sony/noob-guide-to-sony-ericsson-xperia-t3209012
http://xperiafirmware.com/8-firmware/77-sony-xperia-z3-tablet-compact
as i´m in the same situation as you i will share my experience / research so far:
1. Rooting works on different firmware with different methods, kingroot being one rather easy but with the drawback of sending personal phone data to uncertain chinese servers. Rooting 4.4 seems easier than 5.x.
2. Research showed that the DRM keys / TA partition is something to be backed up, just in case. But for backing up you need root but no unlocked bootloader (unlocking erases the keys).
3. Recoveries can be installed without unlocking the bootloader but need root(?).
This is where im right now with my progress - rooted, TA/DRM keys backed up and on a custom recovery but bootloader still locked and TA intact .. getting root demanded some patience and several tries though.
4. next step will be installing a prerooted 5.1 firmware i guess and everything has to be running fine

Root and DRM keys on Marshmallow?

Dear community,
I've recently got a Z5 compact (updated it to MM already) and after reading around here and around the Z5 forums I came to a cruel conclusion (didn't do my homework before getting the phone, but that's my problem):
You cannot root without unlocking the bootloader and you cannot backup the DRM keys without having root access.
Is this correct? If so, how did people writing the tutorials about DRM keys backup achieve root access in the first place?
I'm a little bit confused here...
Sent from my Nexus 5 using Tapatalk
daniel_loft said:
Dear community,
I've recently got a Z5 compact (updated it to MM already) and after reading around here and around the Z5 forums I came to a cruel conclusion (didn't do my homework before getting the phone, but that's my problem):
You cannot root without unlocking the bootloader and you cannot backup the DRM keys without having root access.
Is this correct? If so, how did people writing the tutorials about DRM keys backup achieve root access in the first place?
I'm a little bit confused here...
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
currently,for the z5 family,there is no way to root without unlocking bootloader.Period.
the tutorials you see on the z5 pages are ways to restore sony credentials after unlocking bootloader but does not restore TA partition (where the DRM keys are) which is lost once you unlock bootloader. i.e you trick the phone into believing the bootloader is unlocked and can still enjoy the sony goodies with the patch (very simplified explanation here).
older models are able to achieve root (like the Z3+) only recently due to exploit found on MM and also using older firmwares.
you might want to hold back on unlocking bootloader for now.the z5 has impressive hardware rivaling samdung.the sad part is backing up TA partition while bootloader is locked,which has not been found.
that or you can hold out till the new nexus arrives.
Frostmore is correct in that you cannot backup DRM currently. But I disagree that you should hold off on doing so, the z5c lacks in most all places and root helps fix some stuff.
Does the loss of DRM keys affect camera performance?
DrYnternet said:
Does the loss of DRM keys affect camera performance?
Click to expand...
Click to collapse
yes it does, Mobile Bravia Engine is gone, Track ID in music player is gone and camera performance is also gone.
but now you can backup and restore your own TA if you have not unlocked bootloader yet
I thought that It is possible to backup TA partition with iovyroot here. It is working on Lollipop. So if you upgraded to Mashmallow, you need to downgrade with flashtool here which does not unlock the bootloader. After downgrade It is possible to backup DRM keys I think isn't it?
Yes downgrade then unlock boot loader then root then relock with DRM keys.
Sent from my E6633 using XDA-Developers mobile app
---------- Post added at 12:27 PM ---------- Previous post was at 12:27 PM ----------
It will say boot loader status relocked in service menu
Sent from my E6633 using XDA-Developers mobile app
I am completely baffled. I managed to restore ALL my original DRM keys!
I lost them while unlocking the bootloader, and then rooted my device. I also didnt do my homework and didn't realise I would lose all the DRM keys. When I factory resetted my device, using companion, I got my phone working on android 7.0 again, but ofcourse the drm keys were gone. Filming was almost impossible and fingerprint was not working etc.
And for whatever reason, guess I was bored, I unlocked the bootloader again, since it wouldn't matter anyway. So I unlocked the bootloader with oem unlock and the sony developer site, and then the device started rebooting. It looked like a bootloop, it took about 5 minutes, everything on my phone was gone (damnit). But when I tried fingerpringt, camera, everything worked like before! I have no idea how this happened but maybe this'll work for anyone here. aswell! From now on I'm not gonna touch ANYTHING anymore, since I just don't have enough developer knowledge.
btw: I made an account on this site especially to share this information with you :highfive:
Weslietje said:
I am completely baffled. I managed to restore ALL my original DRM keys!
I lost them while unlocking the bootloader, and then rooted my device. I also didnt do my homework and didn't realise I would lose all the DRM keys. When I factory resetted my device, using companion, I got my phone working on android 7.0 again, but ofcourse the drm keys were gone. Filming was almost impossible and fingerprint was not working etc.
And for whatever reason, guess I was bored, I unlocked the bootloader again, since it wouldn't matter anyway. So I unlocked the bootloader with oem unlock and the sony developer site, and then the device started rebooting. It looked like a bootloop, it took about 5 minutes, everything on my phone was gone (damnit). But when I tried fingerpringt, camera, everything worked like before! I have no idea how this happened but maybe this'll work for anyone here. aswell! From now on I'm not gonna touch ANYTHING anymore, since I just don't have enough developer knowledge.
btw: I made an account on this site especially to share this information with you :highfive:
Click to expand...
Click to collapse
Welcome to XDA, and thanks for going through the trouble of creating an account to share information.
However, some of the information you shared is either wrong or misinformed.
Also, this thread is quite old, digging up old threads is generally frowned upon.
First of all, if you never made a backup of your DRM keys before unlocking your bootloader, then those keys are gone. Forever. There's absolutely no possible way of restoring them.
Second, missing DRM keys do not cause the camera or fingerprint scanner to stop working. Only certain "enhancement features" are disabled, such as X-Reality that makes images appear sharper and more vivid when viewing photos/videos, or advanced low light noise reduction when taking pictures.
Many of those DRM-reliant features can be re-enabled by applying a DRM fix patch that can be found on the XDA forums.
The fingerprint scanner is disabled for certain region's firmware by Sony via software means, but it is not dependent on DRM.
You probably messed up somewhere flashing or rooting your firmware, causing functions like the camera and fingerprint scanner to not work. Do a factory reset or clean flash in case this happens.
And finally, it is clearly worded on the web page where you go to unlock the bootloader that your phone will automatically perform a factory reset upon unlocking the bootloader, so you shouldn't be surprised that all your data was erased. It's expected behavior.
You should always backup your data before fiddling with your phone, it's good practice and common sense.
So in conclusion, no, there's no way of restoring the DRM keys without a prior backup. You didn't manage to restore it.
Here's how to verify if your DRM keys are present:
In the dialer, input *#*#7378423#*#* to enter the service menu
Service tests > Security
If your keys are intact, the first three lines should all say [Key OK][Active], and at the bottom FIDO_KEYS : Provisioned
You probably fixed your camera and fingerprint issues by performing a factory reset unknowingly, which is done automatically when you unlock the bootloader as mentioned.
mhaha said:
***
Click to expand...
Click to collapse
Wow, I guess I'll just stick to reading this forum and finding solutions for my problems instead of trying to give advice. That'll look like a homeless guy, giving financial advise. Thanks for the large explanation anyway!:good:

Root E5823 6.0.1 32.2.a.0.305

Hi All,
I am looking for a tutorial that explains how to root the cellphone build under 32.2.a.0.305 running with Marshmallow. I haven't found any topic that state someone succeeded to root this one. Any chance someone can give me some guidance. On some other website it is mentionned that we cannot root it for the moment. So I was thinking maybe downgrade it and go back to Lollipop? But even for that I need some guidance.
Thanks in advance.
Cheers.
francisci said:
Hi All,
I am looking for a tutorial that explains how to root the cellphone build under 32.2.a.0.305 running with Marshmallow. I haven't found any topic that state someone succeeded to root this one. Any chance someone can give me some guidance. On some other website it is mentionned that we cannot root it for the moment. So I was thinking maybe downgrade it and go back to Lollipop? But even for that I need some guidance.
Thanks in advance.
Cheers.
Click to expand...
Click to collapse
Theres a perfectly detailed guide in general section , you should downgrade to lolipop so you can use the temp root tool to back up drm keys before unlocking the bootloader , but if you dont care about drm keys , you can in fact just skip to the boorloader unlock part and root. Its so simple , but i would suggest going through the whole proccess and back up your drm keys cuz once lost , forever lost so ... Yah
madshark2009 said:
Theres a perfectly detailed guide in general section , you should downgrade to lolipop so you can use the temp root tool to back up drm keys before unlocking the bootloader , but if you dont care about drm keys , you can in fact just skip to the boorloader unlock part and root. Its so simple , but i would suggest going through the whole proccess and back up your drm keys cuz once lost , forever lost so ... Yah
Click to expand...
Click to collapse
Hi Madshark
Thanks for your prompt reply. Appreciate it.
I'm at rookie level in terms or rooting smartphone, so I don't know even the basics. Can you send me the link of the "detailed guide" and also explain me what does the "drm keys" stand for?
francisci said:
Hi Madshark
Thanks for your prompt reply. Appreciate it.
I'm at rookie level in terms or rooting smartphone, so I don't know even the basics. Can you send me the link of the "detailed guide" and also explain me what does the "drm keys" stand for?
Click to expand...
Click to collapse
this is the link to the post that I used and followed its instructions to root my phone personally.
http://forum.xda-developers.com/z5-compact/general/how-to-backup-restore-ta-partition-root-t3479532
if you lose DRM keys (and that happens when unlocking the bootloader) then some functions in the device will stop working like Bravia engine, Track ID, etc and on our z5 compact some say even stock camera stops from working, and when you lose those keys you can NEVER get them back because each device has its OWN TA partition that includes its OWN DRM keys and no other device has the same so thats why each and every one who owns an Xperia device must perform this TA backup in case they ever wanted to get back to stock (unroot and relock bootloader) they can restore these keys and functions to factory functionality. if you dont back them up and unlocked the boot loader then you will never get some functions to get back to working properly if you ever wanted to get back to stock and relock your boot loader!
However; there is some thing that is called DRM fix in certain roms that when you install these roms, you will not feel like you lost your functions because they already include a fix that behaves like the DRM keys.
still, losing your DRM keys will cause your device to lose its warranty and if you didnt back them up then you will never get it back even if you relocked your bootloader. so I personally backed them up because my device has a 2 year warranty and I dont want to waste them if any thing goes wrong I would restore them and send it to get fixed.
yet the only problem is warranty to me so if you have no warranty or dont care about it you can skip the back up process but yet again I dont like taking chances so just back them up its a 2 minute thing.
and I say again, all stock based roms in this Z5 compact forum have drm fix...
and to give you my personal opinion I dont like the Xperia z5 compact rooted because as I saw, there is so little roms and so little kernel variations and all the stable roms are based on stock MM firmware and CM roms arent fully stable yet , (they are but they have bugs that I hate having) and I only rooted so i can increase the volume of my phone speakers and headset and increase the strength of the torch but it all turns out to be that all sound mods have bugs and torch mod only work properly on any thing but STOCK ftf but any thing besides stock ftf isnt fully stable so I dont see any point in rooting this device I so regret buying it I should have checked how little the modifications are that can be made on it I owned Z2 and HTC devices in the past and boy! if I wanted to try different things every day for the past 2 years I wouldnt have finished by now there is sooo much to test and so much to try and to customize ...
the only rom that can be customized and can be enjoyed as much that we have is Kryptonian - the rom of awesomeness!
I hope I was helpful
madshark2009 said:
this is the link to the post that I used and followed its instructions to root my phone personally.
http://forum.xda-developers.com/z5-compact/general/how-to-backup-restore-ta-partition-root-t3479532
if you lose DRM keys (and that happens when unlocking the bootloader) then some functions in the device will stop working like Bravia engine, Track ID, etc and on our z5 compact some say even stock camera stops from working, and when you lose those keys you can NEVER get them back because each device has its OWN TA partition that includes its OWN DRM keys and no other device has the same so thats why each and every one who owns an Xperia device must perform this TA backup in case they ever wanted to get back to stock (unroot and relock bootloader) they can restore these keys and functions to factory functionality. if you dont back them up and unlocked the boot loader then you will never get some functions to get back to working properly if you ever wanted to get back to stock and relock your boot loader!
However; there is some thing that is called DRM fix in certain roms that when you install these roms, you will not feel like you lost your functions because they already include a fix that behaves like the DRM keys.
still, losing your DRM keys will cause your device to lose its warranty and if you didnt back them up then you will never get it back even if you relocked your bootloader. so I personally backed them up because my device has a 2 year warranty and I dont want to waste them if any thing goes wrong I would restore them and send it to get fixed.
yet the only problem is warranty to me so if you have no warranty or dont care about it you can skip the back up process but yet again I dont like taking chances so just back them up its a 2 minute thing.
and I say again, all stock based roms in this Z5 compact forum have drm fix...
and to give you my personal opinion I dont like the Xperia z5 compact rooted because as I saw, there is so little roms and so little kernel variations and all the stable roms are based on stock MM firmware and CM roms arent fully stable yet , (they are but they have bugs that I hate having) and I only rooted so i can increase the volume of my phone speakers and headset and increase the strength of the torch but it all turns out to be that all sound mods have bugs and torch mod only work properly on any thing but STOCK ftf but any thing besides stock ftf isnt fully stable so I dont see any point in rooting this device I so regret buying it I should have checked how little the modifications are that can be made on it I owned Z2 and HTC devices in the past and boy! if I wanted to try different things every day for the past 2 years I wouldnt have finished by now there is sooo much to test and so much to try and to customize ...
the only rom that can be customized and can be enjoyed as much that we have is Kryptonian - the rom of awesomeness!
I hope I was helpful
Click to expand...
Click to collapse
Very helpful ! Thanks v much - I'll let you know if I succeed!
Ok, 2 more things.
Probably the most important: warranty has nothing to do with DRM keys, unlocked bootloader or what more. Sony is not/never gonna repair smartphones when there're problems caused by custom ROM or kernel, they're not gonna fix a bootloop caused by a bad flashing procedure and so on. But it's not true that you're automatically losing warranty by unlocking bootloader or getting root access.
Next to that, you don't have to go through that process of backing up your own TA, if you don't want. It's much easier to root and flash a kernel with DRM keys patched. Procedure to root is really simple. Flash new rom, unlock bootloader, fastboot to flash compatible twrp , flash supersu, flash modded kernel, done. There're already quite some tutorials to guide you through this proces.
--jenana-- said:
Ok, 2 more things.
Probably the most important: warranty has nothing to do with DRM keys, unlocked bootloader or what more. Sony is not/never gonna repair smartphones when there're problems caused by custom ROM or kernel, they're not gonna fix a bootloop caused by a bad flashing procedure and so on. But it's not true that you're automatically losing warranty by unlocking bootloader or getting root access.
Next to that, you don't have to go through that process of backing up your own TA, if you don't want. It's much easier to root and flash a kernel with DRM keys patched. Procedure to root is really simple. Flash new rom, unlock bootloader, fastboot to flash compatible twrp , flash supersu, flash modded kernel, done. There're already quite some tutorials to guide you through this proces.
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Yah well if the bootloader is unlocked and the system has modification on it , they have every right to refuse fixing it for you because its hard to prove that what bricked the device isnt some modification that you made... Unless they have a really good heart , i had a z2 before and it was rooted but the ftf on it was custom but was on it for like 7 months and all the mods were working properly untill all of the sudden it wont turn on so they told me that what i.did caused it but i didnt do anything wrong i know they lying but can u prove it!? No..
Hi guys,
How do I flash the boot.img using cmd and fastboot ?
francisci said:
Hi guys,
How do I flash the boot.img using cmd and fastboot ?
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first you gotta download ADB folder
you can find it here if im not wrong : http://forum.xda-developers.com/showthread.php?t=2588979
then place the adb folder in C:\
I think it automatically place it there when installing so no need to do that if so
2. go to cmd (start - type in CMD) and once it launches direct it to where the adb folder is "cd c:\adb" without the quotes of course
3. to flash boot type in "fastboot flash boot boot.img" without quotes and one space step between words only.
4. to flash recovert just type is "fastboot flash recovery "recovery name".img wihtout the quotes and copy recovery name exactly the way it is.
that it
keep in mind that any time you want to flash any thing , that thing must be inside the adb folder for example ,boot.img file must be there in the adb folder with all the other files when installing adb, and also recovery and every other thing you want to flash using fastboot.
hope this is helpful.
Hi madshark, thanks again for your help. I have been able to flash the boot img and then rename twrp into recovery and flash it as well.
Now I'm stuck the device cannot reboot so I cannot transfert the SuperSU files in to the device...
And when I type adb devices in cmd, it do not mention the device ! Seems that I'm facing an issue.
francisci said:
Hi madshark, thanks again for your help. I have been able to flash the boot img and then rename twrp into recovery and flash it as well.
Now I'm stuck the device cannot reboot so I cannot transfert the SuperSU files in to the device...
And when I type adb devices in cmd, it do not mention the device ! Seems that I'm facing an issue.
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Click to collapse
well youre new, mistakes like these happen Ive been there, sorry for the late reply XDA isnt giving me notification
any way, make sure after backup TA (which is on lolipop firmware) you gotta get back to original .305 firmware (MM) the process of you getting back to lolipop in the first place is so you can use Ivoyroot tool for temporary root so you can backup your TA partition, once that is done you must get back to .305 because you are flashing a kernel (boot.img) that is for build .305 I guess the guide guy didnt mention this?
second when I said copy recovery name as it is I meant what recovery name you have for example
fastboot flash recovery twrp-3.0.2-0-E5823-20160417.img
thats my recovery name the one that I downloaded, yours might say some thing else its OK I meant copy YOUR recovery name to CMD the way it is exactly in the ADB folder
and now your stuck, if your bootloader is already unlocked, just flash .305 firmware with flashtool the same way you flashed the lolipop firmware, once that is done, do the first boot settings and once device is launched into the software , just flash boot again
make sure you follow instructions to the POINT, so you gotta turn of your phone, press the volume up button keep it pressed while connecting your phone to the PC and flash boot and recovery and thats it
and after youre done with this process , then you turn on your phone connect it to your PC and place the superSU zip file in it and then go to recovery and flash it
adb isnt recognizing your device?
thats weird if you just connect your device nothing will happen, so you turn off your phone and press the volume up button and connect it, (thats how you enter fastboot mode) and if still doesnt recognize then do what I told you to do already and see what happens next
keep me updated and if its urgent just send me a PM because I dont see notification otherwise...
Thanks Madshark for your help, it has finally worked!

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