[Solved] How come I could flash a kernel despite a locked bootloader? - Sony Xperia P, U, Sola, Go

I have a Sola with a locked bootloader that can not be unlocked. Still, I could flash a kernel using flashtool. How come?
Now, I'm kind of new to this whole flashing stuff thing, but according to my brief research, I was under the impression that you can't flash ROMs or kernels if your bootloader isn't unlocked. When I found out about this, I was like "aww", and kept using the sluggish stock ICS ROM.
Now, when I updated to a new firmware via Companion, I lost root, and I found a tutorial "for Solas with locked bootloader" that told me how to get it back, but it included flashing kernels via flashtool. I was skeptical, but went ahead and succeeded, root was back <3 so I indeed could flash a kernel onto the phone despite a locked bootloader. How in the world was that possible? Am I missing something? I can flash a kernel but not ROMs? Or can I safely flash a whole CM onto my phone now?
Thaaanks!

U need a kernel.ftf to flash it via flashtool
Sent from my ST25i using Forum Runner
---------- Post added at 06:46 PM ---------- Previous post was at 06:43 PM ----------
Bro its not something u would learn jz by reading
When I was new here... I had no knowledge
Jz spend some time here and u will b a bachelors in flashing
Sent from my ST25i using Forum Runner

A locked bootloader can be flashed. The only difference is that you need a signed kernel, one with Sony's signature in order for the bootloader to load the kernel and boot.
You can flash any older stock kernel. Including the ones with known root exploits, and flash the new one after. You can't flash CUSTOM kernels.
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No way... at this moment

You can flash custom kernel on locked bootloader,I tested.
Sent from my Xperia U using xda app-developers app

are you sure? i have a locked BL and if this indeed works that would be awesome...XP

Pics or it didn't happen. Lol.
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XperianPro said:
You can flash custom kernel on locked bootloader,I tested.
Sent from my Xperia U using xda app-developers app
Click to expand...
Click to collapse
how?

You may flash it but you'll soft brick because the loader won't load an unsigned kernel. You'll have to flash a stock one to boot again.
Enviado de meu LT22i usando o Tapatalk 2

Related

Lapdock HDMI mirror on unlockable Atrix?

hi ^^
is there a way to perform a HDMI mirror with a lapdock but on a Atrix with an unlockable bootloader (means no other ROMs..)
I wouldn't mind if I had to disable webtop (but don't want to delete it).
I'd like to play games,watch movies etc. on it but in webtop the Atrix is too slow
Edit: Bootloder is LOCKED , no custom ROMs for me
Sent from my MB860 using xda app-developers app
Try Cynogenmod stable Rom its got mirroring option enable it and you can see your phone through LCD TV I do the same for games.
Sent from my MB860 using xda premium
As I already wrote, I have an unlockable bootloader : can't flash custon ROMs..
Sent from my MB860 using xda app-developers app
you mean you have an LOCKED bootloader, an unlocked bootloader would allow you to flash a custom rom.
Anyway, there's a post somwhere in the forums which discuss how to enable hdmi..mirroring on any rom... im on my..phone so i can't find it right now
Enviado desde mi MB860 usando Tapatalk 2
andresrivas said:
you mean you have an LOCKED bootloader, an unlocked bootloader would allow you to flash a custom rom.
Anyway, there's a post somwhere in the forums which discuss how to enable hdmi..mirroring on any rom... im on my..phone so i can't find it right now
Enviado desde mi MB860 usando Tapatalk 2
Click to expand...
Click to collapse
No guys, he has an Unlockable bootloader (that can't be unlocked), a lot of people got phones which can't be unlocked from Motorola since some months ago.
Don't know how to help you there, buddy
andresrivas said:
you mean you have an LOCKED bootloader, an unlocked bootloader would allow you to flash a custom rom.
Anyway, there's a post somwhere in the forums which discuss how to enable hdmi..mirroring on any rom... im on my..phone so i can't find it right now
Enviado desde mi MB860 usando Tapatalk 2
Click to expand...
Click to collapse
yes, sorry if I didn´t write it right, my bootloader is LOCKED and I can´t unlock it (newer Atrix)
it would be nice if someone could post that thread
edit: if you mean this http://forum.xda-developers.com/showthread.php?t=1472382 then I think it won´t work because it´s for Wet Dream and DarkSide
actually, i was reffering to the parent thread, this one
http://forum.xda-developers.com/showthread.php?t=1348692 ( i guess)
Enviado desde mi MB860 usando Tapatalk 2
You can try unzipping the .zip and copying the files manually whilst remembering to back up any replaced files. I can't offer any promises though as I haven't taken a look at any of the files. Plus, as stated in the thread, instabilities can happen when flashing the zip so make sure you can recover any changes you make. Not having cmw is a *****...
Sent from my Atrix
I hate it too nit being able to unlock my bootloader and install custom roms..
what could happen to my phone? ( worst case scenario ... )
Sent from my MB860 using xda app-developers app
RaZoR No1 said:
I hate it too nit being able to unlock my bootloader and install custom roms..
what could happen to my phone? ( worst case scenario ... )
Sent from my MB860 using xda app-developers app
Click to expand...
Click to collapse
Worst case? You end up with a hi-tech brick

[Q] Cyanogenmod Bootloader Locked

I have a question, I have a xperia S (lt26i), and I have allowed bootloader status "no", I have the generic 4.0.4 android world, but hey seen you can install the root cwm and also do not need the boot loader unlocked, having locked bootloader could install cyanogenmod 9?? or any way to get it having locked bootloader without having to flash the kernel?
If this was in the right section you would get your answer a lot faster as a lot of people now ignore question threads in the GENERAL section.
Sent from my ST25i using xda app-developers app
Nope you need an unlock boootloader to boot CM rom
Sent from my LT22i using Tapatalk 2
Not yet would be the right answer as some people are working on trying to get custom kernel onto a locked bootloader as this is the thing stopping users with locked bootloaders have cm ://
techno-np said:
Nope you need an unlock boootloader to boot CM rom
Sent from my LT22i using Tapatalk 2
Click to expand...
Click to collapse
I read somewhere that putting a generic rom 4.0.4 in specific and having locked bootloader cwm installed, you could install CM9, 9 not 10, because the kernel was compatible with CM9 and did not need to flash another kernel. And would have locked bootloader CM9 with and without flash kernel.
Its possible. You have to wait. check this thread, you can understand.
http://forum.xda-developers.com/showthread.php?t=1961638
Sent from my LT26i using xda app-developers app
this guy (seems) to have done it!
http://forum.xda-developers.com/showthread.php?t=1969804
(even this)

[Q]Update OTA after Unlock Bootloader.

Hi can someone explain to me, is there any way to update my phone(XPERIA sola) via OTA? I have unlock the bootloader and install CWM. If there is a way can u show me, or is it absolutly cant? Or do i have to relock back the bootloader and update via SUS?
My firmware version is 6.1.1.B.1.10.
Lastest version is 6.1.1.B.1.54
Sorry for my bad english:good:
U need to relock bootloader before ota updates
Sent from my ST25i using Tapatalk 2
drsanket_xperia_u said:
U need to relock bootloader before ota updates
Sent from my ST25i using Tapatalk 2
Click to expand...
Click to collapse
Sad to here that, any way thanks for your information:good:
I tought it is possible after watching this link http://forum.xda-developers.com/showthread.php?t=1385725
Thats year old
I suggest u to relock bootloader to prevent fota update brick
Sent from my ST25i using Tapatalk 2
thanks man:good:
If you wana brick your phone the go ahead knock your self out!!!
Sent from my Xperia Sola using xda premium

[Q] BL unlock, alternative method?

Hi there
I have BL unlock statue allowed:Yes
and I want to unlock my bootloader with some tool other than the one in the official Sony thread, because it requires the download of the Android SDK which is a large file and my net speed sucks, can I use flashtool to do so, is there any tutorial? please reply
Yes you can use flash tool I have a r800x I got my unlock code from Sony made sure I had the latest version of flash tool and driver installed open flash tool go to plug in boot loader unlock boot loader follow the prompt on flash tool type in your unlock code it should unlock the bootloader for you
Sent from my R800x using xda premium
flashtool says that my BL is already unlocked
is it possible to enter fastboot mode if you bl is locked?
because i can enter fastboot mode and the LED turns blue
is my BL really unlocked?
Only way to test is to try to flash a kernal using flashtool and use tje lightning symbol instead of flashmode use fastboot select the kernal you downloaded if ur unlocked it will tell you the flash was successful if your not unlocked it well tell u error in red lettereing and the reason for the error
Sent from my R800x using xda premium
thanx for you help(thanx pressed)
All i want now is to install cm7.2, im on official 2.3.4 and im unable to root through both flashtool and zergRush method i have a problem rooting it, because sony issued a patch and the exploit no longer works. What to do now to root and install cwm.
im afraid to flash a kernel because it things go wrong i'll turn my fully functional phone into a paperweight (already failed on flashing a kernel on my xperia x8 and its now a dead phone)
Flashtool wont let u flash a kernal if your bootloader is locked as for the rooting part that I cant help with sorry as I say i have a r800x and for us to root we have to flash down to 2.3.3 root using superoneclick then fota to 2.3.4 if we wanted but if ur bootloader is unlocked DO NOT UPDATE from your carrier your phine will brick and flash tiol is your best friend you should br able just to reflash the stock furmware for any if your phones to brung them back to life
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I heard that there is some kernels that are pre-rooted, is that true
Yes most kernals come pre rooted with cwm lupus, doom kernal free Xperia r the three kernals I run the most I currently have lupus v8 720 kernal running paranoid Android
Sent from my R800x using xda premium
I have this kernel installed 2.6.32.9-perf, does it mean I have an Unlocked Bootloader ?
What is the best bootloader for CM7.2 and that supports overclocking and whats the best method to flash it ?
Please reply quick Im eager to give it a shot I hate this stock FW
What's the name if the kernal it should say in your phone status like doomkernal 2.6.32.69 v14
That us a custom kernal you have installed mine reads 2.6.32.9- lupus v8 720
Sent from my R800x using xda premium
---------- Post added at 04:04 PM ---------- Previous post was at 03:58 PM ----------
To flash any kernal as I stated before flash tool its what's I use to flash my kernal its as easy as open flash tool connect phone in fast boot mode click lightning bolt fastboot mode install kernal select kernal (make a folder just for your kernals and try to keep them named so you know what firmware they work with ie ics jb gb )
Then install
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thanx for your replies
I just flashed Doomlord kernel through flashtool and entered CWM full wipe and installed official CM7.2 and Gapps and it keeps rebooting and it doesnt show anything other than doomlord kernel's animation
I think that Doomlord's kernel does not support CM7.2 but it only supports Sony based firmwares. if so, which kernel is best suited for CM7.2 and has overclocking ?
What's the roms firmware ur trying to flash? Ice cream sandwich gingerbread or jellybean?
Most if doom lords kernel are gingerbread based I'm not sure about overclocking tho I don't do it
Sent from my R800x using xda premium
---------- Post added at 04:42 PM ---------- Previous post was at 04:36 PM ----------
Try to find either lupus or free Xperia kernals they support ics
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---------- Post added at 04:51 PM ---------- Previous post was at 04:42 PM ----------
Most custom rooms if they are for a unlocked boot loader will provide a kernal with the zip or one to download to use with their roms
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CyanogenMod 7.2 is Gingerbread, Please some good kernel that supports overclocking
http://forum.xda-developers.com/showthread.php?t=1468043
Give this one a look over it might help
Sent from my R800x using xda premium
karim-ps said:
Hi there
I have BL unlock statue allowed:Yes
and I want to unlock my bootloader with some tool other than the one in the official Sony thread, because it requires the download of the Android SDK which is a large file and my net speed sucks, can I use flashtool to do so, is there any tutorial? please reply
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2039465
That link will help you!
Find unlock BL section and follow the tutorial! That's all
Sent from Sony Xperia Neo L MIUI
---------- Post added at 09:55 AM ---------- Previous post was at 09:54 AM ----------
If you wanna root Plz tell me ur model
Sent from Sony Xperia Neo L MIUI

[Q] Kernel, ROMs and bootloader

I used to have a SE Xperia X8 in the past.
When I started unlocking it I found out that in order to flash a ROM, you sould be rooted, same here with my xt910.
Although in order to flash a kernel you sould have first unlocked your bootloader. The kernel flashing was done with a PC program (.exe) called Flashtool. (You could also change the baseband version using flashtool, which I don't know what it is...)
So, how does it work with xt910?? I've red something about CID, which again, I don't even know what it is ( ), and nothing about bootloader or something.
I would really need some help here!
Thanks!
This device's bootloader hasn't been unlocked yet. And probably never will, if you are looking to flash Roms install safestrap or bootmenumanager, and then read the OPs that should do, you can check some vídeo tutorials at youtube also...
Sent from my XT910 using xda premium
Steven87 said:
This device's bootloader hasn't been unlocked yet. And probably never will, if you are looking to flash Roms install safestrap or bootmenumanager, and then read the OPs that should do, you can check some vídeo tutorials at youtube also...
Sent from my XT910 using xda premium
Click to expand...
Click to collapse
And what about kernels? They are all flashed via recovery?? What a "kexec" is? A kernel, right?
Every kexec ROM brings their own kernel. Kexec bypasses the bootloader lock and loads the kernel con top of the stock one, the only kernel you can flash in recovery is jbx, bit you have to install a kexec ROM first... Check the tutorials con youtube, they are very good...
Sent from my XT910 using xda premium
maxnaxos said:
And what about kernels? They are all flashed via recovery?? What a "kexec" is? A kernel, right?
Click to expand...
Click to collapse
Check the dev section. There you can find my JBX-Keenwl. It currently works only with 4.2.2 roms. But I am working on 4.3 now.
Steven87 said:
Every kexec ROM brings their own kernel. Kexec bypasses the bootloader lock and loads the kernel con top of the stock one, the only kernel you can flash in recovery is jbx, bit you have to install a kexec ROM first... Check the tutorials con youtube, they are very good...
Sent from my XT910 using xda premium
Click to expand...
Click to collapse
Thanks a lot!
Two last questions:
1) If I flash jbx, then can I normally run the stock 4.0.4 rom from ss? And if not, is there any way to get to my previous kernel?
2) What CID is all about??
Sent from my XT910 using XDA Premium HD app
http://forum.xda-developers.com/showthread.php?t=2325764
see he re for how to BMM (which you can flash kernels/basebands and more)
CID is a customer ID for keeping you to flash a firmware form other region
With BMM you can backup, erase and restore your CID
maxnaxos said:
Thanks a lot!
Two last questions:
1) If I flash jbx, then can I normally run the stock 4.0.4 rom from ss? And if not, is there any way to get to my previous kernel?
2) What CID is all about??
Sent from my XT910 using XDA Premium HD app
Click to expand...
Click to collapse
There is NO need to play with the CID anymore! But if you think you have to do it anyways, please keep multiple backups of your CID on save place (computer, USB stick...).
Without the backup you will be stuck with bmm/bp tools boot which busts your warranty for sure.
Gesendet von meinem XT910 mit Tapatalk 4
dtrail1 said:
Check the dev section. There you can find my JBX-Keenwl. It currently works only with 4.2.2 roms. But I am working on 4.3 now.
Click to expand...
Click to collapse
Looking forward to seeing a 4.3 build of your JBX.... was running 0.8.1 on Paranoidandroid rom 3.69 and it was awesome!!!!!!!!
$H0RTY 140 said:
Looking forward to seeing a 4.3 build of your JBX.... was running 0.8.1 on Paranoidandroid rom 3.69 and it was awesome!!!!!!!!
Click to expand...
Click to collapse
Thx. Check 8.2 until I can release 4. 3 kernel
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