[Q] Question about unlocked BL and CWM - Xperia Play Q&A, Help & Troubleshooting

Hi!
I was just wondering, if I got CWM already w/o having an unlocked BL as I do, is it possible that I can get this to work for example?
A .zip-file that contains a kernel and flashing it?
Or do I need a unlocked BL so I truely get the permissions to change the kernel?
Thanks in advance, best regards RazerBlader.
Please note that I got root as well

You can only use fastboot to flash a kernel, which needs an unlocked BL

Related

[Q] nAa-r2 recovery CWM + SE TWEAKED v0.7 = Possible?

in the thread of nAa-r2 CWM for mini/pro/active/arc it say you can install stock rom in the recovery, and i searched for stock rom and i bumped into SE tweaked thread and i am confused if this are compatible. is SE TWEAKED really a stock rom? and one thing SE tweaked thread says that the requirement is unlocked bootloader, mine is still locked but i have fastboot and cwm.. what does that mean? enlighten me please.. thanks..
i think i also need a list of tweaked stock roms that can be use from nAa-r2 CWM..
thanks in advance to all who will answer my query.. ^_^
You can use that recovery on custom kernels/ROMs too.
dp94 said:
You can use that recovery on custom kernels/ROMs too.
Click to expand...
Click to collapse
no kidding?
wow.. but it says will only work on unlock bootloader.. mine is locked..
i just want to make sure that it will brick my phone..
this will be an expensive paper weight if that happens..
I've had a locked BL and that CWM recovery installed.
Then I unlocked my BL, flashed a kernel and the recovery and the backups where still there.
dp94 said:
I've had a locked BL and that CWM recovery installed.
Then I unlocked my BL, flashed a kernel and the recovery and the backups where still there.
Click to expand...
Click to collapse
my bootloader is still locked.. i want to know if i can flash it even though it is still locked.. i still have no plans of unlocking my bootloader.. maybe i have to wait a little more before i can decide of unlocking it.. i am not worrying about losing my recovery, i am concern of bricking my phone..
Yes, you can flash it even with locked BL.
Look for the program in this thread:
http://forum.xda-developers.com/showthread.php?t=1356253
dp94 said:
Yes, you can flash it even with locked BL.
Look for the program in this thread:
http://forum.xda-developers.com/showthread.php?t=1356253
Click to expand...
Click to collapse
thanks sir..
you helped me a lot..

[Q]Root and flash kernel Xperia Arc s

hi guys, i have bought a XPERIA ARC S and i would to root my phone.
I have also checked if is allowed unlock bootloader and it's ok!
So, i have the last rom 4.0.4 stock, is possibile have root with this tool http://forum.xda-developers.com/showthread.php?t=1320350?
so, if i want flash a kernel with root included, i must only unlock bootloader and then flash kernel?
The last question is: the rom/kernel are the same for ARC and ARC s?
Hi mate,
The rooting tool that you have linked to needs you to have CWM working before you root. So to use that method you need to unlock your bootloader and then flash a custom kernel. Then enter recovery and flash the latest image.
If you don't want to flash a different kernel, look at this thread: http://forum.xda-developers.com/showthread.php?t=1868455. (Might cover your next question as well)
All the roms and kernels are interchangeable for the arc and the arc s, since the only difference is the clock speed. (On some rom's you might need to change your build.prop from LT15i to LT18i, but that's all. If it does have the option though, always pick the LT18i)
Hope I was able to help
Jon565G said:
Hi mate,
The rooting tool that you have linked to needs you to have CWM working before you root. So to use that method you need to unlock your bootloader and then flash a custom kernel. Then enter recovery and flash the latest image.
If you don't want to flash a different kernel, look at this thread: http://forum.xda-developers.com/showthread.php?t=1868455. (Might cover your next question as well)
All the roms and kernels are interchangeable for the arc and the arc s, since the only difference is the clock speed. (On some rom's you might need to change your build.prop from LT15i to LT18i, but that's all. If it does have the option though, always pick the LT18i)
Hope I was able to help
Click to expand...
Click to collapse
ok, so if i have understand right:
1)i will unlock bootloader
2)will flash custom kernel with root in fastboot mode
it's ok?
danispal said:
ok, so if i have understand right:
1)i will unlock bootloader
2)will flash custom kernel with root in fastboot mode
it's ok?
Click to expand...
Click to collapse
1. Yep if you want. (It's not needed to flash most ROM's and will void your warranty)
2. Yeah, flash custom kernel via fastboot.
You will have to have the superuser.zip on the sd card. The enter CWM and flash it. This will give you root.
That helped me as well before. Now itd time to say thanks
Sent from my LT18i using xda app-developers app

[Q] few questions about lt18i

I have a limited time to root an arc s and i need few answers please:
1 if the bootloader is locked ,it is any chance to make sim unlock?
2 i already made root but i don.t know how you flash custom kernel or wifi modules(install from zip?)... in which mode should be phone putt? ( i tried with flashtool in fastboot mode and doesn.t rebbot via adb or fastboot)
you can't flash custom kernels or wifi modules with a locked bootloader
you should unlocked the bootloader. it really is easier when you're going to install custom rom or kernel
1.your sim will still be locked
2.unlock bootloader through unlockbootloader(dot)sonymobile(dot)com. you may relock if you want through this method.
How I unlock bootloader? I put the code *#*#78... and say bootloader unlock:no
then the only way is through testpoint. http://forum.xda-developers.com/showthread.php?t=1551494&highlight=bootloader
but this is way risky.
What is your firmware version? .587 can be unlocked as far as i know.
zgmfx20 said:
then the only way is through testpoint. http://forum.xda-developers.com/showthread.php?t=1551494&highlight=bootloader
but this is way risky.
What is your firmware version? .587 can be unlocked as far as i know.
Click to expand...
Click to collapse
.587 firmware
zgmfx20 said:
then the only way is through testpoint. http://forum.xda-developers.com/showthread.php?t=1551494&highlight=bootloader
but this is way risky.
What is your firmware version? .587 can be unlocked as far as i know.
Click to expand...
Click to collapse
Firmware has nothing to do with the bootloader.

[Q] xperia m flashing

hi, im new in here,i have c1905 4.3with latest update and locked bootloader. when i go to services it says that i can't unlock it
Can i flash new rom with locked bootloader? fi yes, so how? i read loads of things for unlocked bootloader, i know that need to have backup, recovery.i rooted my phone and have flash tool and adb.thanks for help
justgytis said:
hi, im new in here,i have c1905 4.3with latest update and locked bootloader. when i go to services it says that i can't unlock it
Can i flash new rom with locked bootloader? fi yes, so how? i read loads of things for unlocked bootloader, i know that need to have backup, recovery.i rooted my phone and have flash tool and adb.thanks for help
Click to expand...
Click to collapse
Hello, if your bootloader status is Bootloader unlock allowed: NO, then you can't (for now) unlock it at all (No solution available to date)...hence, you can't install a custom ROM like Cyanogenmod because it contains a custom kernel, and a custom kernel needs an unlocked bootloader.
Everything is possible, a developer on Xperia SP made a CM12 (latest Cyanogenmod ROM) rom for LOCKED bootloader, but unfortunately it's not yet available for our Xperia M.
dondontruck said:
Hello, if your bootloader status is Bootloader unlock allowed: NO, then you can't (for now) unlock it at all (No solution available to date)...hence, you can't install a custom ROM like Cyanogenmod because it contains a custom kernel, and a custom kernel needs an unlocked bootloader.
Everything is possible, a developer on Xperia SP made a CM12 (latest Cyanogenmod ROM) rom for LOCKED bootloader, but unfortunately it's not yet available for our Xperia M.
Click to expand...
Click to collapse
thanks for that :good:
there is a cwm recovery for locked bootloaders but you can only flash stock based roms (theres 2 stock based) i don't think they are for dual sim tho

[Q] CWM recovery for Xperia M locked bootloader ?

Hi, guys thanks to xda I was able to root my phone now I can't seem find a working CWM recovery file to flash it in my device. I've not unlocked my bootloader though so please help me flash cwm recovery on my c1904 15.4.A.1.9 firmware locked bootloader thanks in advance.
Sorry, but it's impossible to install cwm if your phones bootloader is locked.
metalftw7 said:
Sorry, but it's impossible to install cwm if your phones bootloader is locked.
Click to expand...
Click to collapse
i did flash a cwm recovery for my device using flashify.But it just simply reboots it doesn't go to recovery mod. & please do something.
On Stock 4.1 i heared about a CWM for locked bl, but never tried it. But on 4.3 it isnt working. Look for the thread in general section.
But a "normal" CWM on locked bl isnt possible, as the bootloader only loads a kernel from Sony, and to boot into cwm on our device we need to detect an event to extract the cwm ramdisk instead of the nornal ramdisk, which is only possible with a modified kernel, which requires an unlocked bl to get loaded.

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