Unlock Bootloader and install TWRP recovery - Sony Xperia ZR

How can I unlock bootloader and install TWRP recovery on my phone when I check follow these steps: *#*#7378423#*#* > Service info > Configuration then it show that Rooting status: Bootloader unlock allowed: No
I'm using Sony Xperia ZR C5503 Docomo and Android version is 5.1.1.
Thanks a lots!

If bootloader unlock status say No then you won't be able to unlock bootloader and install twrp recovery.Bad luck for you.

Røbin said:
If bootloader unlock status say No then you won't be able to unlock bootloader and install twrp recovery.Bad luck for you.
Click to expand...
Click to collapse
Thanks for your help!

Related

Confirmation on way to root

Can please someone confirm this will work?
1. Downgrade to JB 4.2.2 14.1.G.1.534
2. Install locked dualrecovery 2.7.97 BETA
3. Flash KK 4.4.0 14.3.A.0.681
4. Flash with CWM superSU
I am asking because I read somewhere the following method:
1. Flash KK 4.4.0
2. Unlock bootloader
3. Install CWM thru a very complicated procedure that requires fastboot
4. Flash with CWM supeSU
Now, my question is: since I could install dualrecovery for unlocked bootloader, to avoid ulocking bootloader, why not downgrade, flash dualrecovery, upgrade and flash su?
Can please someone confirm this will work?
1. Downgrade to JB 4.2.2 14.1.G.1.534 (and root it)
1.2 (Backup TA Partition !Important, for the future)
2. Install locked dualrecovery 2.7.97 BETA
3. Flash KK 4.4.0 14.3.A.0.681 (via recovery)
4. Flash with CWM superSU
'
'
this is OK,
Killer2k8 said:
Can please someone confirm this will work?
1. Downgrade to JB 4.2.2 14.1.G.1.534 (and root it)
1.2 (Backup TA Partition !Important, for the future)
2. Install locked dualrecovery 2.7.97 BETA
3. Flash KK 4.4.0 14.3.A.0.681 (via recovery)
4. Flash with CWM superSU
'
'
this is OK,
Click to expand...
Click to collapse
cool thanks...
wht point 1.2? Is this necessary for what? I am not going to unlock bootloader
thegios said:
cool thanks...
wht point 1.2? Is this necessary for what? I am not going to unlock bootloader
Click to expand...
Click to collapse
If you're not going to unlock your bootloader then do not do it. you can also backit up when you're running kitkat with root.
But what's the harm? )
Killer2k8 said:
If you're not going to unlock your bootloader then do not do it. you can also backit up when you're running kitkat with root.
But what's the harm? )
Click to expand...
Click to collapse
ok hold on a sec, I did not read carefulyy...
you are saying I need to downgrade and root, then flash dual recovery, upgrade and flash su
I thought I could avoid rooting after downgrading, cos I cannot download from anywhere any tool to root 14.1.G.1.534
thegios said:
ok hold on a sec, I did not read carefulyy...
you are saying I need to downgrade and root, then flash dual recovery, upgrade and flash su
I thought I could avoid rooting after downgrading, cos I cannot download from anywhere any tool to root 14.1.G.1.534
Click to expand...
Click to collapse
1.downgrade to .534 via flashtool
2.root it using this guide http://forum.xda-developers.com/showthread.php?t=2439328 (vroot / root360)
3.install recovery, reboot to recovery wipe everything
4.flash kk zip file via recovery and then the stripped ftf file via flashtool
5. you have a rooted kitkat
more info here
http://forum.xda-developers.com/showthread.php?t=2687443
Killer2k8 said:
1.downgrade to .534 via flashtool
2.root it using this guide http://forum.xda-developers.com/showthread.php?t=2439328 (vroot / root360)
3.install recovery, reboot to recovery wipe everything
4.flash kk zip file via recovery and then the stripped ftf file via flashtool
5. you have a rooted kitkat
more info here
http://forum.xda-developers.com/showthread.php?t=2687443
Click to expand...
Click to collapse
I cannot download vroot and root360, websites are not working
thegios said:
I cannot download vroot and root360, websites are not working
Click to expand...
Click to collapse
Use Bin4ry method, it's more safe.
eclyptos said:
Use Bin4ry method, it's more safe.
Click to expand...
Click to collapse
I was hoping it would be less complicated...
I still do not understand why I have to root after downgrading...
After all, all I need is a custom recovery to flash superSU, and according to the guide all I need to install a dual recovery is. 534, no need to root it or to unlock it, according to the guide.
So if I do not want to unlock device and I do not care backing up TA, the following should suffice
1. Downgrade to. 534 with flashtool
2. Install dual recovery for unlocked phones
3. Upgrade to kitkat with flashtool using an official ftf
4. Flash superSU with cwm
thegios said:
I was hoping it would be less complicated...
I still do not understand why I have to root after downgrading...
Click to expand...
Click to collapse
Because you need root to install recovery
http://forum.xda-developers.com/showthread.php?p=51318613
The post here is what I did straight from Kitkat. No downgrade necessary.
After doomlord kernel install, just install su.zip using recovery
Sent from my C6903 using xda app-developers app
silverfox013 said:
http://forum.xda-developers.com/showthread.php?p=51318613
The post here is what I did straight from Kitkat. No downgrade necessary.
After doomlord kernel install, just install su.zip using recovery
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
I understand this requires an unlocked bootloader
thegios said:
I understand this requires an unlocked bootloader
Click to expand...
Click to collapse
the problem is that I do not want to unlock bootloader...
it seems it is an endless loop: either you unlock the bootloader if you do not want to downgrade, or you downgrade first if you do not want to unlock
thegios said:
the problem is that I do not want to unlock bootloader...
it seems it is an endless loop: either you unlock the bootloader if you do not want to downgrade, or you downgrade first if you do not want to unlock
Click to expand...
Click to collapse
the easiest way imo is to just unlock the bootloader.
flash the kitkat ftf via flashtool as linked below
unlock the bootloader via sonys website http://unlockbootloader.sonymobile.com/
flash doomlords kernel + recovery http://forum.xda-developers.com/showthread.php?t=2632808
via flashtool http://www.flashtool.net/download.php
FLASH SUPERSU via cwm http://download.chainfire.eu/supersu
done simple no need for screwing around downgrading ect ect
thegios said:
the problem is that I do not want to unlock bootloader...
it seems it is an endless loop: either you unlock the bootloader if you do not want to downgrade, or you downgrade first if you do not want to unlock
Click to expand...
Click to collapse
Just try it, you seem to be wanting extremely specific instructions and questioning everything you are told. Please try following them them asking for help as you go along, you never know, it might just work for you....
There is no need to unlock the bootloader if you downgrade, root, install recovery and flash a pre rooted rom. Please tell me which step of these instructions say "unlock the boot loader"
Sent from my C6903 using XDA Premium 4 mobile app
gregbradley said:
Just try it, you seem to be wanting extremely specific instructions and questioning everything you are told. Please try following them them asking for help as you go along, you never know, it might just work for you....
There is no need to unlock the bootloader if you downgrade, root, install recovery and flash a pre rooted rom. Please tell me which step of these instructions say "unlock the boot loader"
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
didnt say u mentioned to u lock... I simply said that I wanted to avoid it, but it seems there is no way out
Yes there is, you do not need to unlock the bootloader to root...
Sent from my C6903 using XDA Premium 4 mobile app
MON5TER said:
the easiest way imo is to just unlock the bootloader.
flash the kitkat ftf via flashtool as linked below
unlock the bootloader via sonys website http://unlockbootloader.sonymobile.com/
flash doomlords kernel + recovery http://forum.xda-developers.com/showthread.php?t=2632808
via flashtool http://www.flashtool.net/download.php
FLASH SUPERSU via cwm http://download.chainfire.eu/supersu
done simple no need for screwing around downgrading ect ect
Click to expand...
Click to collapse
I guess u r rite.. so I am gonna unlock: do I loose any sony feature? (audio plus, x reality, ...)
Also, since I do not have a custom recovery, I guess I will have to flash the kernel via fastboot, whi h will give me the ustom recovery, then flash superSU with the recovery
What do I need flashtool for?
gregbradley said:
Yes there is, you do not need to unlock the bootloader to root...
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I know I know... all I wanted to say is: eithef I stay on KK and unlo k the bootloader to root, or I do not unlock but have to downgrade etc.
Unlocking at this point seems easier, safer and faster, as I will keep my current rom which works fine
I will do a backup with sony toll and restore afterwards
But once you downgrade, root and install recovery you just flash a pre rooted 4.4 rom... The one from NUT is made from a stock ftf file with the relevant root files added to it. I don't see the issue.
As for unlocking, read the information on the sony website about it. You have to unlock using that site anyway. You will lose warranty and drm keys. However, to be able to lock again you need to back up your TA partition otherwise you lose the drm keys forever. Now to do that you must have root, so you are going to have to downgrade and root anyway
Sent from my C6903 using XDA Premium 4 mobile app

[Q] no custom rom working

hi there......
i was on stock 4.3 .205 firmware.
1. i rooted the device using towelroot followed by supersu.
2. root success checked ....
3. unlocked bootloader using flashtool.
4. now here the problem comes - for any custom rom , i extract boot.img and flash it using fastboot. after that getting into recovery i flash the rom..
but after rebooting system.. sony logo comes and then black screen stuck up. same occurs in every rom ..
any solution please?
Maybe you messed up in the install step...
Try to reflash your phone...
Chena_22 said:
Maybe you messed up in the install step...
Try to reflash your phone...
Click to expand...
Click to collapse
i have tried it many times. i also tried flashing stock rom again and following same procedure to root....
all steps to install rom are correct... but same black screen stuck occurs on every rom i flash..
bootloader unlocked or locked?
Chena_22 said:
bootloader unlocked or locked?
Click to expand...
Click to collapse
unlocked bootloader...
Uhm there is an issue here:
3. unlocked bootloader using flashtool.
Click to expand...
Click to collapse
You cannot use Flashtool to unlock the bootloader of the Sony Xperia SP. Go to here: http://developer.sonymobile.com/unlockbootloader/
Since it is not unlocked please read this too: http://forum.xda-developers.com/showthread.php?t=2354721
~~ Regards

relock bootloader

hi guys, today i got notified that there is a new update for my c6602 which is 10.5.a.0.233)
tried to update it via sony pc companion but i got an error because of using modified software (bootloader unlocked)
i tried relocking it via flashtool BLU button but the phone wouldn't boot so i had to unlock it again
is there a working method for relocking it?
thanks
LP.Bullets said:
hi guys, today i got notified that there is a new update for my c6602 which is 10.5.a.0.233)
tried to update it via sony pc companion but i got an error because of using modified software (bootloader unlocked)
i tried relocking it via flashtool BLU button but the phone wouldn't boot so i had to unlock it again
is there a working method for relocking it?
thanks
Click to expand...
Click to collapse
See steps 4 and 5: http://forum.xda-developers.com/showpost.php?p=50513337&postcount=1
Kariharri said:
See steps 4 and 5: http://forum.xda-developers.com/showpost.php?p=50513337&postcount=1
Click to expand...
Click to collapse
thanks
it worked by using the flash tool to relock the bootloader using the BLU button (but after this the device won't boot)
then i flashed the new FTF file, i got the new firmware and the bootloader locked
LP.Bullets said:
thanks
it worked by using the flash tool to relock the bootloader using the BLU button (but after this the device won't boot)
then i flashed the new FTF file, i got the new firmware and the bootloader locked
Click to expand...
Click to collapse
The bootloader is not relocked when you flash stock FTF.
You will loose custom recovery and root.
Flash recovery and root again.

[Help!] Something Wierd

Please Help!
I Flashed Stock rom by Sp Tool
But i got a text on the boot screen "oem unlocked'
So, i relocked bootloader,
But now sptool is not detecting my phone!
All drivers are installed
Device:-
Karbonn Sparkle V
rushiranpise15 said:
Please Help!
I Flashed Stock rom by Sp Tool
But i got a text on the boot screen "oem unlocked'
So, i relocked bootloader,
But now sptool is not detecting my phone!
All drivers are installed
Device:-
Karbonn Sparkle V
Click to expand...
Click to collapse
Dammit!
SPFT requires an unlocked bootloader!
U just locked it, unlock oem aka bootloader then try with SPFT.
sachin n said:
Dammit!
SPFT requires an unlocked bootloader!
U just locked it, unlock oem aka bootloader then try with SPFT.
Click to expand...
Click to collapse
:good:
But Bro, after flashing it remains unlocked
rushiranpise15 said:
:good:
But Bro, after flashing it remains unlocked
Click to expand...
Click to collapse
Hmm, don't worry about bootloader.
Let's keep it unlocked, which will help you in many cases.

TWRP question

I don't have a pc or any external way to install TWRP via ADB. Is there any way to install it without using kingroot(or rooting at all)?
I want to install Lineage.
Update1:Bootloader is unlocked via dev options
Update2:My mistake on the bootloader being unlocked, thanks for pointing that out)
Update3: I guess I will just need to get a PC for a day or two. But once I have TWRP installed I can load Lineage+GAPs just through TWRP right?
No, you have to make a backup of everything on the phone and unlock bootloader in order to flash anything. You can't do this without PC.
Nope, you need Fastboot to flash TWRP to the Recovery partition unfortunately. Since you need to unlock bootloader first, you cannot use any one-click root app to root on a locked bootloader. After unlocking bootloader you can flash TWRP then. All this needs to be done on a PC with ADB/Fastboot drivers.
thes3usa said:
Nope, you need Fastboot to flash TWRP to the Recovery partition unfortunately. Since you need to unlock bootloader first, you cannot use any one-click root app to root on a locked bootloader. After unlocking bootloader you can flash TWRP then. All this needs to be done on a PC with ADB/Fastboot drivers.
Click to expand...
Click to collapse
My bootloader is unlocked through the dev options. Does that help at all?
NeoMeir said:
My bootloader is unlocked through the dev options. Does that help at all?
Click to expand...
Click to collapse
Yes, but you still need a PC to flash recovery using fastboot.
przemcio510 said:
Yes, but you still need a PC to flash recovery using fastboot.
Click to expand...
Click to collapse
Through "Dev Option" means he has OEM Unlocking enabled. Does not mean his Bootloader is unlocked.
thes3usa said:
Through "Dev Option" means he has OEM Unlocking enabled. Does not mean his Bootloader is unlocked.
Click to expand...
Click to collapse
I know that, nonetheless it does help if you would like to unlock bootloader at all.
You can't unlock BL w/o enabling OEM unlock first, can you?
przemcio510 said:
You can't unlock BL w/o enabling OEM unlock first, can you?
Click to expand...
Click to collapse
Not really sure about this. As I remember, I never selected the Option in Developer Options when I first Unlocked my bootloader. This was over a year ago, and I never needed to relock and unlock my BL again. So, you may be right.

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