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[Q] Backup Bootloader and OS Frome Xoom

So, my understanding is this. If we unlock the bootloader so as to gain root access then the Xoom states to us that we will lose our warranty. That bites, but is expected. But if we decide to re lock the bootloader, it is my understanding that it, being the warranty is still void.
My first question is this. How will motorola know that we had unlocked the bootloader after re locking it? Is there a virtual trip in the system that creates a file that makes the statment that the unit had been unlocked? If so can we figure out where that file is located?
Now I could see a problem in finding the file in question if it does exist. But we would have to have a bootloader that is backed up from a Xoom that has never been unlocked. To compare the files. And that is assuming that that file resides in the the unlocked bootloader and not somewhere els on the system.
So, how can we backup the factory bootloader before unlocking it? Also, how do we make a backup image of the entire factory OS before root access is granted?
The reason I ask is because the steps and the image that is provided by Motorola for the OS may be tainted in some way also, so as to let them know that it is not the real original OEM installed OS.
Also, I have done a search, and came up with noquestions or answers to any of these questions. If the questions and answers are out there. I do apologize for asking again.

I doubt if they can tell the difference once it it relocked. You should replace the boot.img with the locked factory default file as well as the other original images (System) which is only available for the 3G model. Once you root the boot.img is replaced with a modified version which can easily be found out. Owners of the Wifi only Xoom will have to wait.

Moto g 3 - is there easy tool to root phone.

Hi,
is there easy tool to root phone. I don't need install trwp and custom roms.
I just need to root the phone - that's all.

There is no shortcut... you must unlock the device via Motorola's Official Unlock tool, this will wipe your device and void the warranty. Then you can boot TWRP (without flashing it if you wish) and install root.
Sorry, but since Lollipop, and all future versions of Android, there will be no more quick root solution that can be done without unlocking and following the "old normal" procedure, Google made sure of that, for now at least until someone discovers an entirely new way to root.

i was thinking that there is some easier way.
Motorola has app (Moto care i think ) that can remotely wipe phone when lost. When i was activating it there was some info about root access.
So i need that tool:
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
??
How to boot into TRWP without flashing it ?
Is there way to lock the phone after unlock process ? For example when I won't need any more rooted phone.

Yes
You boot twrp with the 'fastboot boot xxxx.img' command
Your phone will always show unlocked, even when relocked, unless you flash a stock rom image using a special OEM lock procedure. TBH, almost no one bothers because it will always show tampered and you won't get the warranty back.
Sent from my MotoG3 using Tapatalk

that's not good information. With my "luck" to phones it probably will need warranty after unlock
what else will i need to unlock it ?
Motorola unlock tool - i know.
i suppose drivers for phone, what else ?

bartwaw said:
that's not good information. With my "luck" to phones it probably will need warranty after unlock
what else will i need to unlock it ?
Motorola unlock tool - i know.
i suppose drivers for phone, what else ?
Click to expand...
Click to collapse
There is no "tool"... Just drivers (Win only), a few fastboot commands, and Moto's website, it's all manually done with the G3.
Sent from my MotoG3 using Tapatalk

If you are ready to root your phone, then don't think about warranty. every warranty voids at one day, then if you want full control over your phone , you must ready for everything, otherwise don't root .
Before doing anything, you must do a backup
Read everything and understand then hit ok in all steps of Android rooting life .

There is a root tool called One Click Root. It seems great. have a try.

drmuruga said:
If you are ready to root your phone, then don't think about warranty. every warranty voids at one day, then if you want full control over your phone , you must ready for everything, otherwise don't root .
Before doing anything, you must do a backup
Read everything and understand then hit ok in all steps of Android rooting life .
Click to expand...
Click to collapse
You are saying backup before doing anythig... But how to backup it? When we unlock all data get wiped... So there is nothing to backup... Device is very clean...

sagar27691 said:
You are saying backup before doing anythig... But how to backup it? When we unlock all data get wiped... So there is nothing to backup... Device is very clean...
Click to expand...
Click to collapse
You should back up as much as possible before you unlock the device. Photos, Videos, etc - you can back-up to your SD card. Contacts, Calendar, etc. can be backed up on Google.
I'm not sure about other app data, like in games.

Before you root, consider whether you actually *need* to root your phone for you to use it. Often, a lot of the 'control' people mention, is something they hardly make use of. One popular reason for rooting might be ad-blocking, but if it's just to block ads in browsers, there are various browsers available with ad-blocking enabled (firefox for instance with a plugin) and if you want system-wide ad-blocking, there are services such as AdGuard, which work with a local VPN / without rooting. More 'control' also means you're potentially making your device less safe. Lastly, the Moto G3 is very clean to begin with, very close to stock Android and the Motorola apps that are included are generally considered to be useful instead of bloat.
TL;DR, think before your root / gamble with your warranty, don't just root for the sake of it.
That said, good luck

Is it possible to lock and unlock bootloader without erasing data once your rooted

I just unlocked the bootloader to install twrp and maybe magisk i wanted to also try the Android P dev preview. but i know having a unlocked bootloader is a security risk also your get that warnign message at boot which makes booting up longer,is there a way to lock and unlock without losing data if im root.

Unlocking and locking wipes all data by design.

Telperion said:
Unlocking and locking wipes all data by design.
Click to expand...
Click to collapse
Is there a way to make the device secure with it having a unlocked bootloader?

With an unlocked bootloader, anyone can install a factory image, which wipes all your locks and your google account (and, therefore, defeats FRP), which is what makes it insecure. The only way to avoid that is to have a locked bootloader (and USB debugging off). (And I've seen reports here that unlocking the bootloader, installing TWRP and Magisk, then locking the bootloader, results in a hard brick (meaning buying another phone, because Google won't replace it)
Run with the unlocked booloader, don't ever leave the phone off your person and have "insurance" that replaces stolen (and possibly lost) phones.

Mandatory unlocked bootloader for rooting?

Hi everyone.
I'm thinking in buying a phone from CAT (CAT S42) and I'm not sure if I can unlock its bootloader. But I've seen on another forum that the CAT S31 has root available for it through Magisk, and I didn't see anyone mentioning having unlocked the bootloader. S42 has a MediaTek chipset and S31 has a Qualcomm chipset, if that helps.
So my question is: is unlocking bootloader MANDATORY to root a device? Can I just run a custom recovery, root the phone with that, and then the recovery gets overwritten on system boot? Or can I root through USB debugging without even needing custom recovery?
The CAT S31 I mentioned was rooted with Magisk, and as I said, I didn't see anyone talking about unlocked bootloader. But I also read Magisk changes the boot partition and the bootloader checks if it was modified. So I'm a bit confused with this too. It's also written that MiracleBox was used and I'm not sure that's the reason that I'm getting confused or not (I had never heard of this tool until now).
A set of software for obtaining ROOT privileges.
Driver_Qualcom_m.7z (9.27 MB) [link]
Enter HS QDSLoad 9008 mode from Vol + and Vol- off state and connect without releasing to USB
MiracleBox [link]
The Boot image is processed on the phone by the Magisk manager, then uploaded to the phone using Miracle again from the computer.
MagiskManager-v7.3.2.apk (2.71 MB) [link]
Just in case,
Backup firmware without / Data partition
Attached files
XposedInstaller_3.1.5-Magisk.apk (2.96 MB) [link]
Click to expand...
Click to collapse
How may they have done that?
I'm sorry, I don't understand a lot of the root requirements part, since I was lucky and my 1st phone had the bootloader unlocked alreaedy for some reason and the second was as easy as writting a single command. But about this phone there's almost nothing and I'd like to know the general about this. If it's really necessary to have the bootloader unlocked, for example. And if it's not, then what methods can I use with it still locked?
Thanks in advance for any help!

Hello DADi590,
Unfortunately I can't answer all of your questions about S42. I have one of them and I am also looking for and confused with root procedures. But I can tell you that unlock boot loader was just a matter of get developer options on (tapping version # 10 times), and inside you can toogle lock/unlock bootloader...
How to root it safely is what I do not know yet.
good luck!

@DADi590
Rooting the Android OS of a device in practice is nothing more than adding the su cmdlet known from Linux OS to the Android OS. To root Android OS in no case requires device's bootloader must get unlocked to do so.
FYI: The bootloader of an Android device is comparable to the BIOS of a Windows computer.

Actually, after some time I decided to leave CAT alone and buy a Blackview one. If I'd break the phone, at least it wouldn't be as expensive as the CAT S42 (I bought a BV9500 - not Pro or Plus, the normal one).
Since then (with help of adventures with a tablet of mine) I've learned some more things. One of them I was suspecting and was now confirmed (thank you @jwoegerbauer) which is to root the device, just a binary file is needed to be on the correct place: su. I didn't know it was on other Linux OSes though. Interesting!
So the idea is that just a recovery must be installed to root a device. That's it and nothing else, I believe. To install the recovery is the part where one might need to unlock the bootloader - or not, if the chipset manufacturer left a tool to write partitions directly, like MediaTek or Rockchip. On these 2 it's possible to write partitions directly with a locked bootloader (this means the bootloader on my 1st phone was and still is probably locked - like my BV9500 one is, and I flashed various partitions on it already, one of them, a TWRP recovery).
This explanation is for anyone else like me who would have this question. Bootloader is just to flash partitions and I think run modified ROMs too, but not too sure about that (I never use custom ROMs). [Btw, if I said something wrong, I'm happy to be corrected!]
armandrix said:
Hello DADi590,
Unfortunately I can't answer all of your questions about S42. I have one of them and I am also looking for and confused with root procedures. But I can tell you that unlock boot loader was just a matter of get developer options on (tapping version # 10 times), and inside you can toogle lock/unlock bootloader...
How to root it safely is what I do not know yet.
good luck!
Click to expand...
Click to collapse
I believe I asked this because I prefer that it's not required to unlock a bootloader to do stuff. If you screw the phone somehow with the bootloader locked and there's no tool to flash partitions on it and you must be on fastboot with an unlocked bootloader or whatever, you just bricked the phone. And I'd prefer that not to happen. That's why I chose to buy phones that don't need me to unlock the bootloader to do anything on them. That might mean I can't ever brick them (at least I never bricked my 1st phone with the various things I did on it which I later found out not being recommended at all XD).

I've unlocked the bootloader on my Cat S42. Can be done.

Question ROG Phone 5

Hello I need a hand, I installed the latest OS version for Rog Phone with the tools provided by ASUS Rog phone Since my updates it is installed very well, but I have a Bootloader message each time the phone is started (see photo) I would like to STOP it but I can't! If you have a simple tutorial I would be happy or a helping hand, thank you all

As long as your bootloader is unlocked like the message indicates you'll get that. You can lock it again if it really bothers you or just leave it as is (recommended to leave it alone, especially if your device is not a true Global).

Thank you I know that this is possible to lock the "Lock Bootlocker" there are tutorials but very badly explain, it bothers me if I want to resell it.
Asus are not great on the Update part, because it explains nothing, no simple tutorial, I had only downloaded the software.APK to unlock Bootloader and since the updates are made it always tells me the Bootloader message and I really want to delete it.
Thanks if you have any other info.

Andrologic said:
As long as your bootloader is unlocked like the message indicates you'll get that. You can lock it again if it really bothers you or just leave it as is (recommended to leave it alone, especially if your device is not a true Global).
Click to expand...
Click to collapse
I would like to lock it but I don't know the principle !

PARISSMART said:
I would like to lock it but I don't know the principle !
Click to expand...
Click to collapse
Is your device original WW/Global version? If it is/was originally a Tencent/CH version, take careful note of other users here reporting that you can only unlock it once, meaning if you re-lock it, there is no going back if you one day want to unlock it. Quite important.
If you're all good with above and at own risk, the steps are fairly simple:
1) Backup all your stuff
2) Boot the device into bootloader (Volume UP + Power until you're on the bootloader menu)
3) Connect your device to a PC with a data capable USB cable
4) Execute the command >> fastboot oem asus-lock << (requires that you have Fastboot access and drivers installed of course: Link )
5) Reboot the device. Your bootloader should now be locked.
If it bootloops or you get a red "device is corrupted bla bla.." message, do a factory reset from Recovery or RAW flash a rom. Recommend you make sure you're fully on top of recovering this device from bootloop/soft brick before attempting this, just in case.
If your only concern is about selling the device, I'd suggest keeping it as is and only re-lock it if you decide to sell it. Your warranty is gone anyway since you've used the ASUS Unlock tool once..

Andrologic said:
Is your device original WW/Global version? If it is/was originally a Tencent/CH version, take careful note of other users here reporting that you can only unlock it once, meaning if you re-lock it, there is no going back if you one day want to unlock it. Quite important.
If you're all good with above and at own risk, the steps are fairly simple:
1) Backup all your stuff
2) Boot the device into bootloader (Volume UP + Power until you're on the bootloader menu)
3) Connect your device to a PC with a data capable USB cable
4) Execute the command >> fastboot oem asus-lock << (requires that you have Fastboot access and drivers installed of course: Link )
5) Reboot the device. Your bootloader should now be locked.
If it bootloops or you get a red "device is corrupted bla bla.." message, do a factory reset from Recovery or RAW flash a rom. Recommend you make sure you're fully on top of recovering this device from bootloop/soft brick before attempting this, just in case.
If your only concern is about selling the device, I'd suggest keeping it as is and only re-lock it if you decide to sell it. Your warranty is gone anyway since you've used the ASUS Unlock tool once..
Click to expand...
Click to collapse
Thank you, I will try this and *I will let you know the situation and the *tests
Thank you very much for the explanations, it's nice