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[GUIDE] How To Unlock Bootloader and Stay Stock (A2017U - A2017)

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YOU MUST HAVE ACCESS TO TWRP TO PROCEED
THIS WILL NOT WORK IF YOU DON'T HAVE TWRP

I'M NOT RESPONSABLE IF THIS PROCESS CREATED A THERMAL NUCLEAR DEVICE
AND / OR TURN YOU INTO FIRESTORM.
NOT RESPONSABLE IF SOMETHING HAPPEN DURING THIS INSTALLATION OR IF
YOU DO A MISTAKE DURING THIS PROCESS

READ, READ , READ , READ AND BE CAREFULL WITH THE COMMAND LINES

PROCEED ON YOUR OWN RISK



READ, READ, READ BEFORE PROCEEDING....


Hi A7 Users
--------------

Here we are with a new / excited finding ( thanks @Unjustified Dev )for ALL of us A2017U and A2017G (IS GETTING OFFICIAL UNLOCK AND THIS METHOD NOT TESTED YET,ANY VOLUNTEER?)
and is about UNLOCKING the Bootloader for those who are stock B20 or B27 + Lock Booloader.

Only IMPORTANT requirement is you need to have TWRP install, so if you don't have TWRP install here is the link
and you just NEED TO INSTALL TWRP and if you haven't back-up your STOCK boot.img is the right time to do so

Click Here on How to Flash TWRP with Lock Bootloader, Thank You @tennear

NOTE : THIS PROCEDURE WILL ERASE , I REPEAT WILL ERASE YOUR DATA + INTERNAL STORAGE.

SDCARD IS SAFE.


Steps :
---------

1- Download this File TWRP_UnlockBootloaderPackage_by_DrakenFX.zip and move to your SDCard.
2- Enable "OEM UNLOCKING" under Developer Options
3- Reboot to TWRP
Code:
 adb reboot recovery
4- Lets make sure your device is detected
Code:
 adb devices
Great let keep going.
5- Open Command and navigate to your adb location.
6- Type the following
* BACK-UP AND PULL CURRENT FASTBOOT IMAGE
Code:
adb shell dd if=/dev/block/bootdevice/by-name/fbop of=/sdcard/fbop_lock.img
adb pull /sdcard/fbop_lock.img
* FLASH TWRP_UnlockBootloaderPackage_by_DrakenFX.zip
Awesome you have backup and flash the bootloader unlock package file but wait we're done yet

7- Type the Following
Code:
adb reboot bootloader
8- Lets make sure device is present
Code:
fastboot devices
9- Now let's Unlock the Bootloader (THIS WILL WIPE DATA+INTERNAL STORAGE)
Code:
fastboot oem unlock
10- You'll boot in TWRP once there do the following :
Code:
 * tap CANCEL
 * tap WIPE 
 * tap FORMAT DATA and Follow the Instructions

11- Once done REBOOT
12- WHEN FULL BOOT GO BACK TO TWRP AND CREATE A BACK-UP AND KEEP IT SAFE
13- Have Fun you're now Bootloader Unlock With Stock B20 or B27 Software.

---------------------------------------------------------------------------------------

NOTE : A2017U.B27 Users Everytime you BOOT to System , Recovery, etc, etc you'll be getting a splash screen, JUST WAIT 5 SEC. and your device will boot to where you want to go.

---------------------------------------------------------------------------------------

If You Have the A2017G version and you are already on B03 you can follow step by @Starvirus
A2017G_B03 Unlock Bootloader Steps
---------------------------------------------------------------------------------------

CREDIT / Contributor
- @Unjustified Dev for testing in his Brand New just less than 3 hrs old A2017U and popping up in me the idea about this finding
- Thank you @regenwurm16 for Confirm New method working for A2017G
- Thank you @Starvirus for provide B03 steps

---------------------------------------------------------------------------------------
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13th September 2016, 09:32 PM |#2  
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reserve 1
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13th September 2016, 09:48 PM |#5  
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13th September 2016, 10:02 PM |#6  
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So.. this means unlocked bootloader for full flexibility but also OTA updates because it's still running stock?
13th September 2016, 10:08 PM |#7  
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So jelly. Stuck on B20_boot over here.
13th September 2016, 10:24 PM |#8  
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Quote:
Originally Posted by jpde

So.. this means unlocked bootloader for full flexibility but also OTA updates because it's still running stock?

about right, as long you have an Untouch/UnModded System + boot, so yeah

Quote:
Originally Posted by runderekrun

So jelly. Stuck on B20_boot over here.

@Unjustified Dev is uploading something that will help us go back to B20, I'll be testing this as soon is done and create a Thread for it, is just matter of time
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13th September 2016, 10:26 PM |#9  
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Quote:
Originally Posted by DrakenFX

about right, as long you have an Untouch/UnModded System yeah

Holy crap, that sounds awesome. Huge thanks for all of your work! Hoping someone will be able to confirm that it works on the A2017G
13th September 2016, 11:31 PM |#10  
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Just wow!
Thats what I have talked about.

I hope it works on the A2017G version.
13th September 2016, 11:41 PM |#11  
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Is this reversible? Would ZTE somehow be able to tell if the bootloader was unlocked before when returning the device for a warranty?
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axon 7, bootloader, fastboot, unlock, zte

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