topic Unable to unlock bootloader in Z Series

Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:26:50 GMT

Hi All.

Recieved a replacement Z1 via insurance. Can now not unlock bootloader.

Service menu tells me bootloader is unlockable.

Currently using Mac OSX to unlock (also tried windows 7, and Flashtool on both devices - same output)

Error is :

FAILED (remote: Command did not succeed)

finished. total time: 0.021s

Its not drivers, my Fastboot can see my device, I can control it via ADB / Fastboot with no issues.

Is there a known issue with this build and unlocking B/L?

C6903

Android 5.0.2

Build : 14.5.A.0.270

Cheers

Kev.

Re: Unable to unlock bootloader

Uliwooly — Mon, 22 Jun 2015 13:35:07 GMT

http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/

To unlock the Xperia™ Z1 boot loader, you must make sure your device is on software build 14.2.A.0.290 (Android 4.3) or later. Unlocking the boot loader on earlier software versions will stop the camera functionality.

Please note! It will only be possible to unlock the boot loader for certain releases. You can check if it is possible to unlock the boot loader of your device in the service menu by following the steps below:

In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.

Re: Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:36:20 GMT

Im on a later version... as the post states?

Do i need to downgrade f/w to unlock the B/L?

Cheers

Kev

Re: Unable to unlock bootloader

Uliwooly — Mon, 22 Jun 2015 13:39:22 GMT

@KevAmiga

you don't have to downgrade

Re: Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:41:13 GMT

No, I didnt think so.

Any idea then why it wont work?

I have pretty much exhausted all resources my end.

Last time I did this it was so simple.

Re: Unable to unlock bootloader

Uliwooly — Mon, 22 Jun 2015 13:41:48 GMT

@KevAmiga

I'm not sure if it'll work on a Mac, perhaps @Johan could comment on this.

Re: Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:44:36 GMT

Tried it on a PC also

Its easier on a mac as you dont need the bridge drivers, with MacOSX being Unix derived.

ADB and Fastboot commands all work fine, except the unlock command.

I can reboot, switch modes, etc all via Fastboot and ADB.

Flashtool also.

Kev

Re: Unable to unlock bootloader

Thommo — Mon, 22 Jun 2015 13:54:54 GMT

Do you have USB debugging enabled and unknown sources ticked

Re: Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:56:38 GMT

Debugging yes

Unknown sources - that I dont have an option for?

I authorised this device when i connected it though.

Kev.

Re: Unable to unlock bootloader

Thommo — Mon, 22 Jun 2015 13:57:35 GMT

Settings then Security

Re: Unable to unlock bootloader

KevAmiga — Mon, 22 Jun 2015 13:58:39 GMT

Ah that - yes apologies - both on.

Kev.

Re: Unable to unlock bootloader

KevAmiga — Mon, 29 Jun 2015 22:42:24 GMT

Still no joy - anyone?

Re: Unable to unlock bootloader

Ervin1 — Thu, 13 Apr 2017 12:36:44 GMT

Hi my friend, I have a problem my brother unlocked the bootloader of my z1 and now I do not work the camera eh read in several post that the partition is deleted TA and I want to know if it has remedy since the camera is the main attraction.

PLEASE NEED HELP!

Re: Unable to unlock bootloader

AJITH3 — Sat, 25 Aug 2018 16:24:32 GMT

if you having trouble with your camera after unlocking the bootloader then just try to reset the DRM keys without modification,,, thats it