How to unlock bootloader and install twrp on official 6.0? - ZenFone 2 Q&A, Help & Troubleshooting

I m on stock marshmallow that was released recently by Asus n i wan to unlock bootloader so i can flash cm13 and other roms. All guides ask for unlock bootloader from lollipop. So is there any way through which i can unlock the bootloader without reverting back to lollipop. Have never rooted my device before.

Use the method in the video in post 141. http://forum.xda-developers.com/showthread.php?p=68481473
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[Q] Downgrade 4.4.2 to 4.1.1 to unlock

Is it possible to downgrade from 4.4.2 to 4.1.1 to unlock the device?
You just flash the 4.1.1 then probably have to flash your bootloader if it doesn't boot and then flash the jl2 radio
Hi, I have a custom rom, the galaxy project 4.4.2. What I need to do to unlock the phone?
Can I downgrade to a custom 4.1.2 via recovery, and apply the unlock tutorial?
Correct me if I'm wrong, It's the bootloader that has to be downgraded in order to unlock using the hidden menu. But with devices that took OTA updates 4.3 or later, downgrading bootloader will brick the phone. I'm also looking for an unlock option but no luck so far because my Note 2 has OTA 4.4.2. Does anyone have better information about this?

Marshmallow Upgrade after Bootloader Unlock

I flashed back to lollipop from marshmallow and unlocked the bootloader. Can I use OTA to safely upgrade? If not, how do I go back to marshmallow and keep root?
You will have to root and unlock again if you want MM back. Flash the LP to MM firmware. You use the same process to root and unlock as you did on lp
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How? Update to MM bootloader and stock ROM?

I have Z00A with unlocked bootloader, TWRP, and custom ROM. Has anyone seen a step by step guide to get the Asus MM firmware (bootloader and ROM) installed, and unlock the new bootloader? I have only found bits and pieces.
Yes there is a guide in the general forum. It's called something like "[Guide] how to safely upgrade to MM from any rom "
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Downgrade Roms?

If I'm on a rooted MM rom (modest rom) with the latest firmware rooted and unlocked.. Can I install a LP rom without losing root and bootloader unlock . Can I simply install a 5.1 or whatever rom?
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revdirty said:
If I'm on a rooted MM rom (modest rom) with the latest firmware rooted and unlocked.. Can I install a LP rom without losing root and bootloader unlock . Can I simply install a 5.1 or whatever rom?
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if it isn't a rooted rom you will loose root although most are rooted and you can just flash super su in twrp to root it. and roms don't write anything to the boot loader unless you are installing a full stock image in Odin. (tldr: yes)
Thanks for the clarification

Will I be able to upgrade to Pie if my bootloader is unlocked?

So I'm still on stock, but I can't install OTA updates, which is to be expected since I have an unlocked bootloader, and TWRP. But I'm wondering if that will make an upgrade to Pie impossible without waiting for a custom ROM to come out? Or will I have to relock the bootloader to get it?
yes, if u not rooted neither using custom recovery

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