How to install custom roms without unlocking bootloader? - General Questions and Answers

I want to know how to install custom roms without unlocking the bootloader for my xperia e3 dual (D2212) as i've tried to unlock the bootloader for my phone but it's unsuccessful.

ajyrwa777 said:
I want to know how to install custom roms without unlocking the bootloader for my xperia e3 dual (D2212) as i've tried to unlock the bootloader for my phone but it's unsuccessful.
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You can't install custom ROM with locked bootloader. Installing custom ROM no need root your phone but you must unlock bootloader and it's void your warranty.

Related

[Q] Question regarding the Xperia J

Right now I have the 4.0.4 Android( stock version) of the xperia j with locked bootloader and I've rooted-it and I've also installed the CWM.
I would like to install Cyanogen Mod 10.1 but since I have the 11.0.A.7.5 firmware I have locked bootloader and I can not flash it.
My question is if I can flash an older stock firmware and by doing so will I be able to unlock my bootloader?
From what I understand right now since I have a locked bootloader I can only flash stock ROMs so if that is correct than can I just flash an older stock ROM, one that will allow me to unlock my bootloader and than flash CM 10.1 on my Xperia J?
And another question- I know that by unlocking the bootloader I will also loose my warranty but from searching the XDA forums I saw that I can make a backup copy of my stock ROM and flash it to relock the bootloader again. Is that accurate ?
Thanks in advance for your help!
First is your bootloader unlockable. Then you can unlock on any firmware via sonys website. I dont think there's a cm10.1 released for j. If you unlock your bootloader you will loose DRM keys forever even if you relock they will still be gone that's how Sony will know your bootloader was unlocked.
It is not unlockable, that is why I wanted to flash another version of a stock ICS.
Won't that allow me to unlock the bootloader ?
From what I understood right now I can only flash stock Roms with the locked bootloader, is it correct or since I have the "NO" status at the bootloader I can't even do any of that ?

[Q] Xperia E3 stock firmware flashing

Hello, I want to flash my xperia e3 using flashtool to the latest firmware (4.4.4), but all how-to's i read say i have to unlock my bootloader. Must I unlock the bootloader if I plan to flash all generic sony firmware on my phone? My bootloader unlock status says "no."
alex21074 said:
Hello, I want to flash my xperia e3 using flashtool to the latest firmware (4.4.4), but all how-to's i read say i have to unlock my bootloader. Must I unlock the bootloader if I plan to flash all generic sony firmware on my phone? My bootloader unlock status says "no."
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if you wan,t to flash stock firmware then no need to unlock bootloader.
cause you flash firmware (*.FTF) using flash mode not fastboot(bootloader).
so you don,t have to worry of unlocking bootloader.
ok, thank you for your reply!

New Xperia user here:D Some help?

So...apparently I can't unlock my bootloader. I've seen that you can root even if you have your bootloader locked, but what about flashing a rom?
Is there any chance to flash a custom rom with your bootloader locked? Not stock pre-rooted rom..
CanĀ“t say if you can unlock bootloader based on what model you have.
Yes you can flash any custom ROM based on Stock ROM on locked bootloader, but you can not flash AOSP roms on Locked BL. For those you need to unlock it.

Re-lock bootloader

Hey guys! I unlocked my bootloader keeping my DRM Keys by using this http://forum.xda-developers.com/showthread.php?t=2292598
Now I'm on ZyxxOS ROM and I would like to return to stock ROM, make root and relock the bootloader.
The problem is that I don't know how I can root the phone after flashing the ftf of the stock ROM, can someone tell me how o provide me a link to a tutorial? I've searched and didn't see any around the forum
Mr.YatekomoSan said:
Hey guys! I unlocked my bootloader keeping my DRM Keys by using this http://forum.xda-developers.com/showthread.php?t=2292598
Now I'm on ZyxxOS ROM and I would like to return to stock ROM, make root and relock the bootloader.
The problem is that I don't know how I can root the phone after flashing the ftf of the stock ROM, can someone tell me how o provide me a link to a tutorial? I've searched and didn't see any around the forum
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There is a big thread in the general section on how to root with a locked bootloader.
gregbradley said:
There is a big thread in the general section on how to root with a locked bootloader.
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Yeah, but i need to root on a unlocked bootloader. I'm going to flash via flashtool a stok ROM and I will loose root and I need to know how to root on a unlocked bootloader
Sent from my Xperia Z3
Mr.YatekomoSan said:
Yeah, but i need to root on a unlocked bootloader. I'm going to flash via flashtool a stok ROM and I will loose root and I need to know how to root on a unlocked bootloader
Sent from my Xperia Z3
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Flash an insecure kernel. Its the easiest way to root. But in the OP you said you wanted to re-lock the bootloader, then you cannot boot an insecure kernel.
Please let me know if you will have a locked or unlocked bootloader.
gregbradley said:
Flash an insecure kernel. Its the easiest way to root. But in the OP you said you wanted to re-lock the bootloader, then you cannot boot an insecure kernel.
Please let me know if you will have a locked or unlocked bootloader.
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My plan is back too stock, then root and last re-lock the bootloader in that order
Sent from my Xperia Z3
Mr.YatekomoSan said:
My plan is back too stock, then root and last re-lock the bootloader in that order
Sent from my Xperia Z3
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Why? You will lose root when you re-lock
Just go back to stock and re-lock then use the massive thread in the general section to root.
Also, that rooting method works on unlocked bootloaders as well. Anything that works on a locked bootloader works on an unlocked bootloader as well.
gregbradley said:
Why? You will lose root when you re-lock
Just go back to stock and re-lock then use the massive thread in the general section to root.
Also, that rooting method works on unlocked bootloaders as well. Anything that works on a locked bootloader works on an unlocked bootloader as well.
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Ok thanks for the info! It's my first Xperia device and I'm a total noob because I'm coming from the Nexus family and it's totally different from it ??
Sent from my Xperia Z3
Mr.YatekomoSan said:
Ok thanks for the info! It's my first Xperia device and I'm a total noob because I'm coming from the Nexus family and it's totally different from it
Sent from my Xperia Z3
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No problem.
how to lock the boot loader
i want to update my software version.to do that i need to lock the boot loadet because the boot loader on my sony xperia z3 is unlocked how can i relock it pls

Custom ROM for Sony Xperia XA F3113 with locked bootloader

Hi I want to flash a custom ROM on my Sony Xperia XA F3113 as the stock rom sucks but according to Sony's website my bootloader is locked and cannot be unlocked (secret menu says bootloader unlock allowed no) so am I out of luck or is there a way to flash a custom ROM with a locked bootloader ?

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