Just a quick question, I am using the leaked 4.3 firmware with unlocked bootloader.
Will I be able to flash the upcoming official 4.3 firmware via flashtool? will the bootloader become locked again?
Sorry for the noob question.
Yes you can flash the ftf with no problems - bootloader will not be re-locked. I excluded flashing of the kernel and unticked wipe data in flashtool so that I retained the leaked kernel (with Cwm) and all of my user data. Have had no issues so far.
so after flashing the stock rom, I will still have my bootloader unlocked.
thanks for your answer. :good:
Related
Hi there,
I have an unlocked bootloader running CM10.1.
Is it possible to return to stock and receive updates OTA or via PC Companion from Sony?
Can I keep my unlocked bootloader and root?
Thanks,
Chester
To go back to stock just flash a stock FTF via flashtools.
You need to relock bootloader to be able to use OTA or PC companion to update. You risk bricking your phone if you try updating with an unlocked bootloader.
Sent from my C6602 using xda app-developers app
chesterchen said:
Hi there,
I have an unlocked bootloader running CM10.1.
Is it possible to return to stock and receive updates OTA or via PC Companion from Sony?
Can I keep my unlocked bootloader and root?
Thanks,
Chester
Click to expand...
Click to collapse
heres what i did!
took a stock ftf!
.434 to be precise!
flashed only kernel and unchecked all!
after that i pressd the BLU option and chose relock!
then i flashed the stock ftf as a whole!
wiped data and all!
PS i wiped data while flashing kernel too..that is important!
then after flashing i booted the device!
and restored my ta.img
!
then i flashed a stock rom via sony update service!
and i was successful!
:laugh: :good:
Hi there, i've got an xperia z with official firmware, kernel and recovery.
It's running on 4.1.2 now but it downloaded an update which is 4.2.2 I guess. When I try to install it it fails, is this because my bootloader is unlocked?
Do I have to relock it using Flashtool?(without ftf file)
Does relocking it erases data? (like when you unlock it)
Can I safely use the ota?
Thanks in advance broski's
Hi guys!
I have searched the forum and I DO have got a lot of answers. But still I want to get some things clear before I go on.
I just got myself an Xperia Z. It was already updated to 4.3 .569. The phone has a locked bootloader and I found out that it CAN´T be unlocked. So there I´m stuck.
I was first thinking about following this guide: http://forum.xda-developers.com/showthread.php?t=2590088
But then I got some more questions.
If I downgrade according to that guide... since I get a custom recovery, can I flash any custom ROM that is made for locked bootloader? Do I even have to use the 4.3 .569 used in the thread above or can I just downgrade and root then choose the ROM to my liking?
Thanx for all your help!
Downgrading
Dear friend:
1-the easy way::laugh:
2-Flash 4.2.2 with flash tool
3-Root on locked boot loader
4- Install Dual Recovery follow
5- Install 4.3/4.2 Pre-rooted or any other rom of your choice.
Once you've downgraded, rooted and have a custom recovery, you can use any rom you like, as long as it's a stock based rom for locked bootloaders.
You cannot flash anything based on CM/PAC/AOSP/AOKP etc as they require a custom kernel and therefore an unlocked bootloader.
Sent from my C6603 using Tapatalk
alfi07 said:
Dear friend:
1-the easy way::laugh:
2-Flash 4.2.2 with flash tool
3-Root on locked boot loader
4- Install Dual Recovery follow
5- Install 4.3/4.2 Pre-rooted or any other rom of your choice.
Click to expand...
Click to collapse
Just as I suspected! Have been away from Xperias for a while so I just needed someone to give me a nudge in the back!
Thanx alot, mates!
You're welcome.
Sent from my C6603 using Tapatalk
Hello community,
this is my first post here so i hope, i do it right
Please excuse my english, it is not perfect.
I have a xperia z with Android 4.2.2 (10.3.A.0.423) . The bootloader is unlocked, cwm/twrp dualboot is installed, also the doomlord customkernel v19 is in use, root-access is available.
Is it possible to update to official stock firmware 4.3 (10.4.1.B.0.101) using the PC-Companion without bricking my phone? Root-Access and cwm and so on would be lost as i assume. This would be ok for me.
I really would like to do it that way. I think, as an alternative, i could flash the 4.3 stock rom using cwm? Going this way, will my data and all settings be lost?
Updating via OTA is not a good idea i think.
Thanks for advise
Greetings
ShellingFord
Well, you cannot update via PC companion, Sony Update Service or OTA, as your bootloader is unlocked.
So, that leaves updating via Flashtool or flashing a prerooted rom from the development section.
The cleanest way would be via Flashtool, then simply flash a custom kernel again and root.
Sent from my C6603 using Tapatalk
And if im going to flash the stock-kernel which belongs my current firmware and then relock the bootloader?
If the bootloader is relocked, i can't flash a kernel or something else anymore right?
EDIT: If I decide to flash a rom will my data be lost or is it like im doing an normal update?
Is it possible to go back to stock with everything?
So much questions Sorry, I don't know that much, please help
Can anyone help?
Yes, if you relock the bootloader, you should be able to update via the normal methods (at least via PC companion, unsure about OTA). A locked bootloader means you cannot use custom kernels.
If you flash with Flashtool, you can choose not to wipe your data.
Sent from my C6603 using Tapatalk
kingvortex said:
Yes, if you relock the bootloader, you should be able to update via the normal methods (at least via PC companion, unsure about OTA). A locked bootloader means you cannot use custom kernels.
If you flash with Flashtool, you can choose not to wipe your data.
Click to expand...
Click to collapse
I assume, it would be the best to flash the original kernel before i lock the bootloader?
After relocking the bootloader and installing the update via PC-Companion, will the kernel be the "original" kernel and will cwm/twrp be still there or not?
Yes, flash a stock kernel before locking the bootloader. If you don't, you will soft brick your phone.
After updating, you will have a stock kernel and your custom recovery will be gone as well as root.
Sent from my C6603 using Tapatalk
Thanks for the help so far. :good: I will try it and keep you informed.
ShellingFord91 said:
Thanks for the help so far. :good: I will try it and keep you informed.
Click to expand...
Click to collapse
So everything worked fine. I relocked the bootloader via flashtool and installed the firmware using PC-Companion. My Xperia Z is now totally "stocked"
Thank you very much for your help
You're welcome. Glad to help.
Sent from my C6603 using Tapatalk
Hello.
I searched some but i could not find the answers so hopefully i can get them in this post.
Well what i was wondering about is: I have unlocked my bootloader the official way. Let´s say i wanna relock it again, flashing a stock kernel.sin and using flashtool to relock it.
What method is then used to Unlock it again if you would wanna do that ? And i dont want guesses here i want solid facts of what works and not.
/Jonas740
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
dual `?
GR00VY GH0ULIE said:
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
Click to expand...
Click to collapse
Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
Jonas740 said:
Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
Click to expand...
Click to collapse
On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
Ye
eclyptos said:
On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
Click to expand...
Click to collapse
Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
Before flashing JUST the kernel from the Global Generic FTF posted here I flashed (in recovery from ADV Stock Kernel) NUT's dual recovery for Z1 from here: http://nut.xperia-files.com/
Then after stock kernel flashed I relocked bootloader in FlashTool and still have access to recovery if I need it (say I lose root) and can always reflash Update SuperSU from recovery and booyah!! Root restored though I never lost root but if I do I can get it back super easy!!
Jonas740 said:
Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
Click to expand...
Click to collapse
I don't know what exactly you mean. If you want to keep your kernel you can flash any Stock FTF and exclude Kernel in Flashtool, that will wipe the system but the kernel will remain the one you have, it's called Dirty Installation.
If you have Custom Rom with Custom Kernel and you want, for example, relock your bootloader then with Flashtool flash the Stock Kernel only, how? Just use any Stock FTF, put it in Flashtool folder, select the FTF and exclude everything and leave just kernel clicked, it will flash just the Stock Kernel from the whole Stock FTF.
Done.