[Q] HELP - Xperia Z1 Q&A, Help & Troubleshooting

[Q] HELP - Xperia Z1 Q&A, Help & Troubleshooting

I just got the z1 a few weeks ago[ c6903]
I am new to xperia development bcoz i was using a galaxy tab plus and a galaxy mini before and this is my first xperia device
someone plz explain how to start
i want to have slimkat rom
how to start???
for now i only know how to go back to .534 to root and install dual recovery
but i dont know how to unlock bootloader if needed and how to get slimkat flashed
plz help

To flash slimkat you have to do in the same way how you downgraded the phone, with flashtool and follow the steps on the right thread of that rom. To unlock bootloader you have to follow the instructions HERE. If you read carefully and search well you find all want you have to know.

REMEMBER TO BACKUP YOUR TA before unlocking the bootloader. Otherwise you will irreversibly loose your DRM keys.

Related

Rooting Xperia Z then restoring back to COMPLETE original state

Hi all,
I have a stock Xperia Z at the moment. Its a work phone.
I want to root it but because its a work phone I have to know I can go back to complete original state if I want to.
Now I have read the threads about backin up your TA partition but I am not sure if by doing this and also by having a stock image I can go back to 100% original?
I read this thread: http://forum.xda-developers.com/showthread.php?t=2234627
Few questions:
- If I root the phone - does it do anything permanent or can I then just loose root easily and go back to exactly how it is now?
- What exactly is the difference between rooting your phone and unlocking your boot loader?
- If I backup the TA partition using the steps in the thread provided above, can I then just do anything else I want to the phone and then restore back to original or are there other steps? and if so, what are they.
Any and all up to date information from someone who knows what they are talking about hugely welcomed.
More nervous than usual just because its a work phone (rooted and used to Custom ROM my HTC Sensation all the time but didn't care as it was my own phone).
Thanks

No one?
Sent from my C6603 using Tapatalk 4 Beta

nnila said:
Hi all,
I have a stock Xperia Z at the moment. Its a work phone.
I want to root it but because its a work phone I have to know I can go back to complete original state if I want to.
Now I have read the threads about backin up your TA partition but I am not sure if by doing this and also by having a stock image I can go back to 100% original?
I read this thread: http://forum.xda-developers.com/showthread.php?t=2234627
Few questions:
- If I root the phone - does it do anything permanent or can I then just loose root easily and go back to exactly how it is now?
- What exactly is the difference between rooting your phone and unlocking your boot loader?
- If I backup the TA partition using the steps in the thread provided above, can I then just do anything else I want to the phone and then restore back to original or are there other steps? and if so, what are they.
Any and all up to date information from someone who knows what they are talking about hugely welcomed.
More nervous than usual just because its a work phone (rooted and used to Custom ROM my HTC Sensation all the time but didn't care as it was my own phone).
Thanks
Click to expand...
Click to collapse
1 - Rooting only changes things on the software side. So it allows you to get complete access to the system files and execute low level actions. So it doesn't do anything on the hardware side. That said, is your phone customized by your employer? Does it have anything specifically done to it? In that case two things might happen. The software is so customized that if you root it and flash a custom ROM on top of that, you WILL lose all the original apps and settings. So there might not be anyway of getting back to the original state. Secondly, your employer might have locked the bootloader permanently. This, I shall take up for answering your next question.
2 - As I mentioned, rooting is only a software level hack that gives unrestricted access. However, let's say you need to flash a custom KERNEL or flash CyanogenMod/AOKP/AOSP (based ROMS), then it's absolutely necessary to unlock your bootloader. This basically is telling the bootloader (which loads your kernel) to allow any unsigned kernels .i.e. non-stock kernels, to be flashed on to your phone. Now mind you, this will cause the DRM keys in your phone to be erased which means you will lose Bravia Engine enhancements for your Pictures. It does remain for the videos though. Lastly, you can relock your bootloader. But you can never get back the DRM keys and hence the Bravia Engine.
So you can either root by unlocking your bootloader or by using root exploits while keeping your bootloader locked.
3 - Since your bootloader is locked right now, I suggest you use DooMlord's rooting toolkit
Here's the link:
http://forum.xda-developers.com/showthread.php?t=2327472
Click to expand...
Click to collapse
Also, backing up the TA partition is only necessary if you want to unlock your bootloader. This aims at backing up your DRM keys so that you can flash them back when you want to relock your bootloader. However this method is still dicey and I wouldn't recommend it considering it is a very risky method and can easily hard brick your device.
Upshot: Locked bootloader - Use Rooting toolkit. Will retain DRM keys.
Unlocked bootloader - For custom Kernels and CM Roms. Will lose DRM keys.

nnila said:
Hi all,
I have a stock Xperia Z at the moment. Its a work phone.
I want to root it but because its a work phone I have to know I can go back to complete original state if I want to.
Now I have read the threads about backin up your TA partition but I am not sure if by doing this and also by having a stock image I can go back to 100% original?
I read this thread: http://forum.xda-developers.com/showthread.php?t=2234627
Few questions:
- If I root the phone - does it do anything permanent or can I then just loose root easily and go back to exactly how it is now?
- What exactly is the difference between rooting your phone and unlocking your boot loader?
- If I backup the TA partition using the steps in the thread provided above, can I then just do anything else I want to the phone and then restore back to original or are there other steps? and if so, what are they.
Any and all up to date information from someone who knows what they are talking about hugely welcomed.
More nervous than usual just because its a work phone (rooted and used to Custom ROM my HTC Sensation all the time but didn't care as it was my own phone).
Thanks
Click to expand...
Click to collapse
If you backup your TA partition, you can restore it later. This doesn't include anything other than the TA partition.
Rooting the phone just means that you have root access just like on any other linux distribution. You can fully unroot at anytime without any problems. Flashing an unrooted ROM or flashing the original ftf will remove root.
Rooting implies getting root access. You have higher privileges & apps that run as root have higher privileges. Unlocking the bootloader gives you access to protected partitions. The only real question is, do you want to use a custom kernel? - If you do, then unlock. Some ROMs, such as CM, run on custom kernels, so if you plan on using such ROMs, you need to unlock.
No, backing up TA is not enough, Follow this thread to get yourself a full ftf for your current customization that can be flashed with the official flashtool for Unlocked bootloaders or the unofficial flashtool that works with locked bootloaders. Further, you also need to relock your bootloader to fully return back to the original state.
If you aren't comfortable with doing all this, don't.
The next time you want to ask a quick question, please post in the Help Thread.
These questions are nothing new, already been answered multiple times, just adding to the clutter in the Q&A forum.

[Q] [request] A guide to root D5803 23.1.A.1.28 w/ locked bootloader

Hello, I want to root my new Xperia Z3 Compact just to uninstall the carrier's bloatware. It came with 23.1.A.1.28 (i exchanged it for a new galaxy alpha, it was bought at the beginning of June ).
Rooting status says : Bootloader unlock allowed : No.
I don't even want to try to unlock it. Is it possible to downgrade the firmware with locked bootloader?
Will i lose anything? If possible, I'd really like to have a complete guide on both downgrading, rooting and upgrading back.
Thanks.

Hm, that's weird, I've checked "Search" and it's working just fine. Use search or check sticky next time.
http://forum.xda-developers.com/z3-compact/general/how-to-root-backup-drm-keys-t3013343

sorry and thank you, i did actually try searching for it but i was overwhelmed by what came up and lot's of it lead to guides containing unlocking the bootloader and i'm not really confident tinkering with android much

U can root with downgrade method. But thats all since u cannot unlock ur bootloader. If u follow the posted guide u should get it. Have done it with the guide without unlocking

great, I was kind of confused, I thought i need to unlock the bootloader to flash anything, including the downgrade

[Q] Z1 c903 Bootloader locking. Help!

Hello all! Im new in xda forum, so i will be greatefull if you help me with my Sony Z1 phone. I have Z1 c903 on android 5.0.2., and I was mad on sony becouse they didnt make update to 5.1, so i was looking on forum how to root and install some custom rom and make my phone updated. So i find on some thread that i should unlock bootloader, and i followed instructions and unlocked it, but without making some backup or anything else. So i have seen that there is official update for sony and i want to get back to lock bootloader. But when i enter flashtool and enter "blu" i click on relock bootloader, and start phone type *#*#service#*#* it say that my bootloader is still unlocked. How should i get back to locked bootloader or make official update to 5.1. Please make it more clear becouse i am pretty noob for android development and rest. Also i want to add that i have not rooted my phone or install some custom rom or other, i just have unlock bootloader and thats all. Could i get back my "DRM keys" and could i get back my ofiicial android. Thanks in advance.

koska92 said:
Hello all! Im new in xda forum, so i will be greatefull if you help me with my Sony Z1 phone. I have Z1 c903 on android 5.0.2., and I was mad on sony becouse they didnt make update to 5.1, so i was looking on forum how to root and install some custom rom and make my phone updated. So i find on some thread that i should unlock bootloader, and i followed instructions and unlocked it, but without making some backup or anything else. So i have seen that there is official update for sony and i want to get back to lock bootloader. But when i enter flashtool and enter "blu" i click on relock bootloader, and start phone type *#*#service#*#* it say that my bootloader is still unlocked. How should i get back to locked bootloader or make official update to 5.1. Please make it more clear becouse i am pretty noob for android development and rest. Also i want to add that i have not rooted my phone or install some custom rom or other, i just have unlock bootloader and thats all. Could i get back my "DRM keys" and could i get back my ofiicial android. Thanks in advance.
Click to expand...
Click to collapse
oh dear, you lost your drm keys.... thats not good....all sony own camera features (bionz, noise reduction...) are lost now. So without your drm keys, you dont get an advantage of locking bl again. SImply flash official sony 5.1.1 and here you are

Tutorial?
mo120697 said:
oh dear, you lost your drm keys.... thats not good....all sony own camera features (bionz, noise reduction...) are lost now. So without your drm keys, you dont get an advantage of locking bl again. SImply flash official sony 5.1.1 and here you are
Click to expand...
Click to collapse
Is there any tutorial how to flash 5.1.1. to my sony? Becouse i didnt root it, i is still my official 5.0.1 android.

koska92 said:
Is there any tutorial how to flash 5.1.1. to my sony? Becouse i didnt root it, i is still my official 5.0.1 android.
Click to expand...
Click to collapse
Download the ftf (general section) and flash via flashtool, but untick the 3 wipe boxes if You want t to keep your data

Thanks
mo120697 said:
Download the ftf (general section) and flash via flashtool, but untick the 3 wipe boxes if You want t to keep your data
Click to expand...
Click to collapse
Can you link me please?

koska92 said:
Can you link me please?
Click to expand...
Click to collapse
FTF:
https://drive.google.com/file/d/0B_mcadp7d-Ivb0RoQTdmT29NN0U/view?usp=sharing
Then start at step 11:
http://www.ibtimes.co.uk/how-instal...z3-z2-devices-via-xperifirm-flashtool-1492498

Need help to unlock the bootloader

Hi, I'm using Xperia T and want to install CM now. So I found that I have to unlock the bootloader first. Sony promises to help on it's homepage -- but I can't find my device there. only a few tablets are displayed. What can I do?

Follow this guide - http://forum.xda-developers.com/showthread.php?t=2090268
Dont mind it says for Xperia V it will work for T

Newbie struggling & confused with a Bootloader unlock NO status SP

Hi,
Apologies for the long post & queries.
I feel this isnt "just another - LBL query". Dont want to end up with a hard-bricked SP (Like I did with my test mule HTC Sensation :crying
So I bought a used O2 UK branded Xperia SP 4.3 (12.1.A.1.205) purely to learn the art of installing custom ROM's again...
The O2 branded SP had its sim lock removed by the seller I bought the phone from. :good:
Now the service menu shows that Bootloader unlock allowed as NO.
After reading quite a bit on unlocking a Bootloader (LBL) with NO status; I achieve ROOT status using Towelroot :highfive: & created a backup of my TA Partition (DRM's and all - dont know how useful would the Bravia engine be in the future) I now have titanium backup & SuperSU working on the SP.
All the threads I have read so far on unlocking my LBL say my SP can only run special [LBL][ROM] scattered over the SP forum while the LBL CM roms do not seem too attractive over the CM14. (looking forward to use the CM roms)
My queries:
1. The first thread I read in my journey to flash a custom ROM; I found that I could not unlock my BL; even though I went forward to the Sony website and have received the unlock code with instructions.
- should I proceed to unlock my LBL following the instructions in this thread? will it brick my SP with the active root?
2. Looking at this thread @ 1.(c) confuses me.
- Can I use the CM-14 recovery and ROM instead of the CWM recovery as instructed?would love to see some CM14 action on the SP.
3. Is there a way to take an IMG backup of my current stock O2 rom,kernel, radio, etc? so if in case I mess up with the custom roms I can switch back to the stock and have a working phone? (gone are the days of Windows Mobile 6.5 the last time I was a pro in flashing roms)
4. I might be stretching my luck with this question but is there a "kitchen" software that does all the flashing business for you on the SP?
Could someone please link me to a thread (could be of any phone) that explains the basics of flashing a custom ROM (kernel, ROM, recovery, etc) to a newbie like me starting the journey with not much experience?
Its the end of 2016; can I now "NO" unlock my locked Bootloader? coz most of the threads I have found are old I dont know where else to look :fingers-crossed:
Thanks!!

You can't unlock your bootloader and any attempt to do so could potentially brick your device.
Also, you cannot flash custom ROM unless the thread specifically states that can be used on Locked bootloaders. Usually those ROMs are tagged as such (UL/LB or something), and explain how they are based of from some stock kernel.

jade master said:
Hi,
Apologies for the long post & queries.
I feel this isnt "just another - LBL query". Dont want to end up with a hard-bricked SP (Like I did with my test mule HTC Sensation :crying
So I bought a used O2 UK branded Xperia SP 4.3 (12.1.A.1.205) purely to learn the art of installing custom ROM's again...
The O2 branded SP had its sim lock removed by the seller I bought the phone from. :good:
Now the service menu shows that Bootloader unlock allowed as NO.
After reading quite a bit on unlocking a Bootloader (LBL) with NO status; I achieve ROOT status using Towelroot :highfive: & created a backup of my TA Partition (DRM's and all - dont know how useful would the Bravia engine be in the future) I now have titanium backup & SuperSU working on the SP.
All the threads I have read so far on unlocking my LBL say my SP can only run special [LBL][ROM] scattered over the SP forum while the LBL CM roms do not seem too attractive over the CM14. (looking forward to use the CM roms)
My queries:
1. The first thread I read in my journey to flash a custom ROM; I found that I could not unlock my BL; even though I went forward to the Sony website and have received the unlock code with instructions.
- should I proceed to unlock my LBL following the instructions in this thread? will it brick my SP with the active root?
2. Looking at this thread @ 1.(c) confuses me.
- Can I use the CM-14 recovery and ROM instead of the CWM recovery as instructed?would love to see some CM14 action on the SP.
3. Is there a way to take an IMG backup of my current stock O2 rom,kernel, radio, etc? so if in case I mess up with the custom roms I can switch back to the stock and have a working phone? (gone are the days of Windows Mobile 6.5 the last time I was a pro in flashing roms)
4. I might be stretching my luck with this question but is there a "kitchen" software that does all the flashing business for you on the SP?
Could someone please link me to a thread (could be of any phone) that explains the basics of flashing a custom ROM (kernel, ROM, recovery, etc) to a newbie like me starting the journey with not much experience?
Its the end of 2016; can I now "NO" unlock my locked Bootloader? coz most of the threads I have found are old I dont know where else to look :fingers-crossed:
Thanks!!
Click to expand...
Click to collapse
Hello
Attempting to unlock your bootloader despite it being not unlockable will make the process fail. No brick will occur.
There is no CM14 that is available for the locked bootloader. Nor will ever be. Unfortunately the workaround past-developers used to make ROMs bootable on locked bootloader of our device is no longer capable or easily to be implemented on latest iterations of Android.
I may not be able to answer this precisely, as my experience with stock ROM was long long ago. As far as I can remember, you can do this with nandroid backup with the old CWM recovery. However I am not remember the menu lists in the recovery anymore. Note that the nandroid backup is not an image backup in a form of .iso or .img. You may alternatively use fastboot to pull exact copy of the partition you have, however this is also out of my knowledge. If you have a large sdcard, you can also use "dd" to do an exact copy of the partition natively on your device (yay linux)
Isn't kitchen a tool to create ROM spin-offs? Sorry I am not an old Android user.. So i do not know. But to answer your question of all-things-tool software, we have Flashtool which handles flashing of stock ROMs and GUI fastboot tools. Only use the version 0.9.18.6. Later versions have some issues with our device..
You still cannot unlock your bootloader. It is a highly secret thing that no one have expertise in exploring or maybe lack of interest. Contrary to popular belief that Xperia phones can have its bootloader unlocked despite of this barrier, no, that only applies to old Xperia lines, and I highly doubt recent Xperia phones can have their bootloaders unlocked with such old tools. You might also risk a hard brick.

Database Develop

welcome