[DEV] Bootloader unlock procedure and software

[Bear6009]

Did you install Minimal ADB and Fastboot? It's the same directory then (usually c:\adb), fastboot.exe should be in there, too.
If you get the good ol' "wating for device" issue, install these drivers.

I was having a hard time because i was trying to see if the devices was connected by adb devices, but that wont show up while in fast boot. DUH lol

lovely! THANKS @Davey126 and @Cl4ncy

Now on to roms!
Is there a way to run two roms? like dual boot?

 

[DB126]

I was having a hard time because i was trying to see if the devices was connected by adb devices, but that wont show up while in fast boot. DUH lol

lovely! THANKS @Davey126 and @Cl4ncy

Now on to roms!
Is there a way to run two roms? like dual boot?

Congrats - glad all is well. Only one rom at a time when using 'native' twrp as you flashing directly to the system partition. However, you can backup and restore different roms in twrp. Safestrap offers dual boot capability but you really don't need/want to use that if you can flash natively.

 

[tthaz777]

My firmware version is 4.5.5. How can I unlock the bootloader?

 

[EncryptedCurse]

My firmware version is 4.5.5. How can I unlock the bootloader?

You can't. You need to be on 3.2.3.2 or below, and there's no way to rollback firmwares past 3.2.8.

 

[draxie]

New kid on the block

Forget about adb/fastboot, python, cuber, and driver agonies on Windows...
Check out my '1-Click' bootloader unlock!

 

[adeba]

Hello from germany,

I am on cm11 rom with safestrap 4.01.
Whats my way to unlock?

 

[EncryptedCurse]

Hello from germany,

I am on cm11 rom with safestrap 4.01.
Whats my way to unlock?

Not possible.
You need to be on FireOS 3.2.3.2 or below, but there's no way to downgrade past 3.2.8.

 

[rlkellyjr]

Big Question? If I do a rollback, and then manually update to 4.5.2, then root my kindle again, If a boot loader unlock is made available for the 4.5.2 to 4.5.5 firmware's, will I be able to update and preform that procedure? Or once you do this rollback, are you stuck at 4.5.2??

 

[DB126]

Big Question? If I do a rollback, and then manually update to 4.5.2, then root my kindle again, If a boot loader unlock is made available for the 4.5.2 to 4.5.5 firmware's, will I be able to update and preform that procedure? Or once you do this rollback, are you stuck at 4.5.2??

Bootloader unlock is unlikely; better odds buying a lottery ticket. That said if an unlock were to become available you would have complete control over your device. Current OS would be irrelevant.

Better to be on 4.5.2 and rooted than 4.5.5 and locked into Amazon's upgrade/obsolescence path. Note rollback is only available on 3rd gen devices (all 7" and 8.9" manufactured before 3Q14; snapdragon 800 processor). There is no option to root or rollback a 4th gen device (snapdragon 805).

 

[Jamesblond005]

Ok I get to the stage below please guide me . Im a total newbie on a customisable bootloader and nexus 2.05. Ive managed to create the img file unsure how to proceed with the instructions below.where is the fastboot directory
Please help thanks

copy that file to your fastboot directory.

on an ADB prompt type

adb reboot-bootloader

then on a fastboot prompt type

fastboot -i 0x1949 devices
fastboot -i 0x1949 flash unlock 0xmmssssssss.unlock
fastboot -i 0x1949 reboot

thats it.

Gathered all from this thread, just a little clearer I think...
thanks to @dpeddi, @vortox, @draxie, @ApokrifX[/QUOTE]

 

[draxie]

Ok I get to the stage below please guide me . Im a total newbie on a customisable bootloader and nexus 2.05. Ive managed to create the img file unsure how to proceed with the instructions below.where is the fastboot directory
Please help thanks

Have you tried 1-Click?

 

[Jamesblond005]

Have you tried 1-Click?

'www.microsoft.com' appears unr
Please check your internet conn
Press any key to continue . . .


Downloading 'https://www.virtua
loads\1-Click(1)\1-Click\dwnlds
Download complete.


Downloading 'http://download.vi
105127-Win.exe' to 'C:\Users\Di
14-105127-Win.exe'
Download complete.

Launching the VirtualBox instal
Please complete the installatio

Installation complete.

VBoxManage.exe: error: Machine
lick\1-Click.vbox' already exis
VBoxManage.exe: error: Details:
achineWrap, interface IMachine,
VBoxManage.exe: error: Context:
raw(), ComSafeArrayAsInParam(gr
hine.asOutParam())" at line 272
VBoxManage.exe: error: Could no
VBoxManage.exe: error: Details:
nent VirtualBoxWrap, interface
VBoxManage.exe: error: Context:
utParam())" at line 1027 of fil
VBoxManage.exe: error: Could no
VBoxManage.exe: error: Details:
nent VirtualBoxWrap, interface
VBoxManage.exe: error: Context:
utParam())" at line 325 of file
VBoxManage.exe: error: Could no
VBoxManage.exe: error: Details:
nent VirtualBoxWrap, interface
VBoxManage.exe: error: Context:
utParam())" at line 486 of file
VBoxManage.exe: error: Could no
VBoxManage.exe: error: Details:
nent VirtualBoxWrap, interface
VBoxManage.exe: error: Context:
e.asOutParam())" at line 224 of
Oracle VM VirtualBox Headless I
(C) 2008-2016 Oracle Corporatio
All rights reserved.

Invalid machine name or UUID! unsure where i went wrong have tried this numerous times getting the previous error

 

[Cl4ncy]

Ok I get to the stage below please guide me . Im a total newbie on a customisable bootloader and nexus 2.05. Ive managed to create the img file unsure how to proceed with the instructions below.where is the fastboot directory
Please help thanks

copy that file to your fastboot directory.

on an ADB prompt type

adb reboot-bootloader

then on a fastboot prompt type

fastboot -i 0x1949 devices
fastboot -i 0x1949 flash unlock 0xmmssssssss.unlock
fastboot -i 0x1949 reboot

thats it.

Gathered all from this thread, just a little clearer I think...
thanks to @dpeddi, @vortox, @draxie, @ApokrifX

Do you have Minimal ADB & Fastboot installed? Check this post then.

 

[Jamesblond005]

Hi yes I have minimal adb installed think I may have a issue with the pc recognising my kindle now. I can only get it to display the files within the kindle in twrp currently it dosent seem to mount otherwise. The problem may have been it wasnt displaying a kindle as being connected it was showing a Nexus 2.0.5 , i may have deleted that and now it dosent display my kindle unless i mount it in twrp

Do you have Minimal ADB & Fastboot installed? Check this post then.[/QUOTE]

 

[Cl4ncy]

Hi yes I have minimal adb installed think I may have a issue with the pc recognising my kindle now. I can only get it to display the files within the kindle in twrp currently it dosent seem to mount otherwise. The problem may have been it wasnt displaying a kindle as being connected it was showing a Nexus 2.0.5 , i may have deleted that and now it dosent display my kindle unless i mount it in twrp


Do you have Minimal ADB & Fastboot installed? Check this post then.

Did you install the drivers linked in the post I referred to above? They help to get the HDX getting recognized by fastboot during the unlock procedure, but lead to the problem that the HDX won't get recognized by Windows anymore. But that doesn't matter for unlocking, just proceed with the adb & fastboot commands, get the HDX unlocked, then re-install the original Amazon drivers, and everything will be fine.

 

[Jamesblond005]

Hi this is what I get when I try the unlock procedure


C:\adb>fastboot -i 0x1949 devices
D0FBA0A03451042E fastboot

C:\adb>fastboot -i 0x1949 flash unlock 0x115dd87787.unlock
error: cannot load '0x115dd87787.unlock'

On kindle hdx I get

getvarartition-type:unlock...ok.
Ready.

Did you install the drivers linked in the post I referred to above? They help to get the HDX getting recognized by fastboot during the unlock procedure, but lead to the problem that the HDX won't get recognized by Windows anymore. But that doesn't matter for unlocking, just proceed with the adb & fastboot commands, get the HDX unlocked, then re-install the original Amazon drivers, and everything will be fine. [/QUOTE]

 

[Cl4ncy]

Hi this is what I get when I try the unlock procedure


C:\adb>fastboot -i 0x1949 devices
D0FBA0A03451042E fastboot

C:\adb>fastboot -i 0x1949 flash unlock 0x115dd87787.unlock
error: cannot load '0x115dd87787.unlock'

On kindle hdx I get

getvarartition-type:unlock...ok.
Ready.


Did you install the drivers linked in the post I referred to above? They help to get the HDX getting recognized by fastboot during the unlock procedure, but lead to the problem that the HDX won't get recognized by Windows anymore. But that doesn't matter for unlocking, just proceed with the adb & fastboot commands, get the HDX unlocked, then re-install the original Amazon drivers, and everything will be fine.

Did you copy/move the .unlock file into the adb directory? Otherwise you have to enter the path to it as well. (That's why it's recommended to put it into the adb directory).

 

[Jamesblond005]

yes the unlock file is in adb\0x115dd88787.unlock. Im getting rather concerned now I cant seem to get my kindle recognised on the pc, Id work around that but have been unable to unlock the bootloader either , have been at this for days on and of

Did you copy/move the .unlock file into the adb directory? Otherwise you have to enter the path to it as well. (That's why it's recommended to put it into the adb directory).

 

[DB126]

yes the unlock file is in adb\0x115dd88787.unlock. Im getting rather concerned now I cant seem to get my kindle recognised on the pc, Id work around that but have been unable to unlock the bootloader either , have been at this for days on and of

Reviewing post history it appears your device started at 3.2.4 w/Safestrap v3 and then attempted to auto update to an unknown version (you speculated 3.2.5) which was canceled before completion followed by a factory reset (typically yields brick w/Safestrap installed - got lucky) . Device then reported 13.3.0.0. It is possible your bootloader remain at a level (>3.2.3.2) that can not be unlocked.

You may want to consider flashing TWRP sooner vs later as it will: 1) confirm if bootloader is eligible for unlock/signature forging; and 2) offer additional recovery capability of something goes wrong with subsequent flash/upgrade/rollback attempts. Note you can install custom versions Nexus v2 (Jelly Bean) or CM11 (KitKat) from TWRP on devices with a locked bootloader. If you go this route you will still have the opportunity to unlock later (involves reinstalling FireOS; not for the faint of heart).

Thoughts from others (@CL4ncy; @draxie)?

 

[Jamesblond005]

Hi Davey no I have TWRP installed I dont have safestrap haven't had it installed for quite some time. Find the whole process difficult to be honest, with no programming knowledge. I may just leave as is with TWRP installed . How do I get the kindle recognized without mounting it in TWRP. Thanks for your help
JB

Reviewing post history it appears your device started at 3.2.4 w/Safestrap v3 and then attempted to auto update to an unknown version (you speculated 3.2.5) which was canceled before completion followed by a factory reset (typically yields brick w/Safestrap installed - got lucky) . Device then reported 13.3.0.0. It is possible your bootloader remain at a level (>3.2.3.2) that can not be unlocked.

You may want to consider flashing TWRP sooner vs later as it will: 1) confirm if bootloader is eligible for unlock/signature forging; and 2) offer additional recovery capability of something goes wrong with subsequent flash/upgrade/rollback attempts. Note you can install custom versions Nexus v2 (Jelly Bean) or CM11 (KitKat) from TWRP on devices with a locked bootloader. If you go this route you will still have the opportunity to unlock later (involves reinstalling FireOS; not for the faint of heart).

Thoughts from others (@CL4ncy; @draxie)?