Bootloader questions for ZE551KL/Z00T - Zenfone 2 Laser Q&A, Help & Troubleshooting

Hi,
I want to root and install CM 13 but I have 2 questions about unlocking the bootloader in order to root.
- Can you relock the bootloader on the 551KL?
- When unlocking, will it remove all my stuff and factory reset my phone?
Thanks, tdm.
Sent from my ASUS Zenfone 2 Laser using Tapatalk

I assume that you can relock in fastboot, but I haven't tried it. As for the unlock app, it didn't wipe a thing when I ran it. Still, it's always wise to backup your data just in case.

1- no there's no way to turn back.
2- yes.
But you doesn't need to have a rooted phone to install CM13, just a phone with bootloader unlocked is enough

Related

In need of Help (Root) won't boot

Hello,
So, I got my Nexus 10 today. Super nice tablet. I wanted to root it and unlock the bootloader - unlocking the bootloader went fine, and I managed to flash CWM recovery. However, I forgot the enable USB Debugging under developer tools before I started all this..
My question now, how do I get this thing to boot again? And what is the smartest move now to root it?
Thanks!
What method did you use?
I keep linking these same posts lately. lol
http://forum.xda-developers.com/showpost.php?p=37019359&postcount=10
http://forum.xda-developers.com/showpost.php?p=37020134&postcount=3
If you're stuck in a boot loop after unlocking the bootloader, you may have to perform a factory reset from recovery. I had to do this to get mine booting again after I unlocked it. After the reset, everything worked great.
Of course, this is also assuming you unlocked your bootloader using fastboot , and not a toolkit. Solution might be the same though either way. May be worth a shot.
I also borked the original ROM after unlocking it, before I even flashed a custom recovery using the nexus toolkit (http://forum.xda-developers.com/showthread.php?t=2015467)
However, it is quite easy to reflash the software (you will loose the data though) through the same toolkit. After that I was able to flash TWRP recovery and CM10.1
Thank you all for your help! Got it working using the linux toolkit and perform a factory reset

January Updates

Just got my phone and I need to wait on rooting. Can I take the January OTA updates and still root later?
Yes. If you plan to root later, unlock the bootloader first before you set everything up. Unlocking the bootloader will force a wipe of all data. Rooting will not, if the bootloader is already unlocked.
fury683 said:
Yes. If you plan to root later, unlock the bootloader first before you set everything up. Unlocking the bootloader will force a wipe of all data. Rooting will not, if the bootloader is already unlocked.
Click to expand...
Click to collapse
If I'm reading this right, I need to unlock the bootloader just to get root? Does that also mean it would take a data wipe to un-root?
blindguyinanorgy said:
If I'm reading this right, I need to unlock the bootloader just to get root? Does that also mean it would take a data wipe to un-root?
Click to expand...
Click to collapse
Unlocking does not provide root access, but it is a requirement for gaining root. If you wait to unlock your bootloader and set all your apps and settings on your phone, it will all be lost when you decide to root because the bootloader must be unlocked to root.
Therefore it is best to unlock first if you have the intention of rooting later to save your data and settings.
blindguyinanorgy said:
Just got my phone and I need to wait on rooting. Can I take the January OTA updates and still root later?
Click to expand...
Click to collapse
blindguyinanorgy said:
If I'm reading this right, I need to unlock the bootloader just to get root? Does that also mean it would take a data wipe to un-root?
Click to expand...
Click to collapse
To get root access you need to install SuperSU, to install SuperSU you need TWRP recovery, to install TWRP recovery you need an unlocked bootloader. Unlocking the bootloader wipes all userdata from the device. The best way to do it is like this:
1. Unlock your bootloader.
2. Flash the factory images for the latest build to make sure you're completely up to date.
3. Install TWRP.
4. Make a nandroid backup with TWRP.
5. Install SuperSU to get root.
6. Install whatever root mods/apps you want.
Read my detailed guide:
http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
I see thank you. This is different from any other phone I've been on where root is found before unlock, if unlock is ever found
blindguyinanorgy said:
I see thank you. This is different from any other phone I've been on where root is found before unlock, if unlock is ever found
Click to expand...
Click to collapse
That's the beauty of owning a Nexus, they're meant to be tinkered with so it's all very easy. No hacks or exploits required.

Bricked device?

Hi everyone,
While trying to upgrade my device to stock Android 7.1.1, I've forgotten to flash the boot image. All the other components have been correctly flashed (system, bootloader, radio, etc.), but I was not careful enough and I forgot to flash the boot image. The problem is I've decided to relock my bootloader (silly me) right afterwards and now the device is in a bootloop (as the current boot image comes from the custom ROM that was installed previously). Naturally, I cannot unlock my bootloader again as it says "OEM unlock is not allowed". Am I screwed? Any ideas on how to unlock my bootloader? After many years of flashing, this is the first time I'm in a real trouble. Thanks for your help!
Yup u may at a lose if the Bootloader is locked then I don't think u can flash anything that's why it's recommended not to Relock the Bootloader bc if you phone doesn't boot for some reason then there's nothing u can do but to RMA it if u still have warranty. If not then sell as parts
Sent from my Pixel XL using Tapatalk
Thanks for your input! I will have it RMA'ed, so it's not a huge deal, but I was wondering whether there was a way of troubleshooting this. But I guess that's not possible. Cheers!
[Guide] Fool/Noob proof way to do clean installs on Nexus Devices
http://forum.xda-developers.com/nexu...talls-t3518311
try this clean install should work

Relock Bootloader with Nexus Root Toolkit

I have a 6P running 7.1.1 that has never been rooted or modified in anyway other than unlocking the bootloader. When I first got the phone I unlocked the bootloader so I could root the phone later if I wanted to without wiping the contents. I never rooted it.
Now Android Pay doesn't work with an unlocked bootloader. I would like to relock it. I understand that this will wipe my device. My question is, can I just press the button in NRT that says "OEM Lock" and it will take care of any flashing or resetting that needs to be done? I was more up to speed on all this when I had my Nexus 5, but the 6P hasn't really required me to get that involved.
Thank you for any help or advice.
Yes, OEM Lock will work, it just sends the ADB commands to your phone. Yes it will (unfortunately) factory reset the phone so to be sure to backup what you need, or at least be sure the Google backup feature is enabled for your apps.
Couldn't you just flash a custom kernel to get AP working again? For example, ElementalX has the bootloader check removed from the kernel. Use fastboot to boot into latest official TWRP without flashing it to the device and use that to flash EX kernel.
v12xke said:
Yes, OEM Lock will work, it just sends the ADB commands to your phone. Yes it will (unfortunately) factory reset the phone so to be sure to backup what you need, or at least be sure the Google backup feature is enabled for your apps.
Click to expand...
Click to collapse
Thanks for the feedback. I knew I was going to lose everything, I just didn't want to brick it someway because it was 7.1.1.

Bootloader relocked

hi guys, i just rooted my oneplus 8 pro. do i need to re lock my bootloader after i root? thanks
short answer: No.
Longer answer: If you need to relock you have to restore your ROM to stock state first (remove root, TWRP if you have it). If you lock it with modded software you will soft brick the device.
Why would you need too?
Never lock bootloader if you have done any modifications.

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