Database Users

[HOW-TO] bootloader unlock 4.67.651.3 OTA

1. Unlocking bootloader via htcdev.com (selecting All Other Supported Models)
2. Flashing recovery via fastboot (./fastboot flash recovery cwm-4.0.1.4-supersonic.img)
3. Reboot recovery and flash latest su.
4. Profit.
PROOF:
Code:
[email protected] ~/evo_s-off $ ./fastboot oem get_identifier_token
< waiting for device >
... INFO
INFO< Please cut following message >
INFO<<<< Identifier Token Start >>>>
===========bla-bla-bla=============
---checking my e-mail for Unlock_code.bin---
[email protected] ~/evo_s-off $ ./fastboot flash unlocktoken Unlock_code.bin
sending 'unlocktoken' (0 KB)... OKAY
writing 'unlocktoken'... INFOunlock token check successfully
OKAY
[email protected] ~/evo_s-off $ ./fastboot flash recovery cwm-4.0.1.4-supersonic.img
sending 'recovery' (3074 KB)... OKAY
writing 'recovery'... OKAY

this is very strange. nobody interested in unlocking bootloader?

there is no official info, but works fine for me.

I'm one of the ones on the newest ota. This helps out a lot, thank you

I already have root, but I am rooting someone else's phone that has new hboot. Thanks!
Sent from my PC36100 using Tapatalk

people with unlocked bootloaders please leave comments here.

Total noob mistake.
OK i ended up updating my evo to the new 4.67.651.3 update. big mistake
I ended up stumbling across this post. (thx wardriva)
I was able to unlock the bootloader and use the ADB method mentioned in this thread to flash recovery.
after looking around I came across brad560's thread and flashed the deodex'ed rom with no problems.
so far everything is working. I also kept looking around and came across the Collection Project (thx Tommytomatoe) and flashed the hot spot hack by SOS. so far its working.
still looking to see if someone has found a workaround with the S-OFF or if revolutionary will support it.
Thx to all the DEV's.

wardriva said:
this is very strange. nobody interested in unlocking bootloader?
Click to expand...
Click to collapse
It's not that, it's the rooted version and stock de-odex/odex are already on the forum. Just waiting for the full rls of the RUU, rule of thumb from a great one(haus) "never update OVER THE AIR"(OTA)

coldroy said:
still looking to see if someone has found a workaround with the S-OFF or if revolutionary will support it.
Click to expand...
Click to collapse
you don't need S-OFF with unlocked bootloader. you can flash any rom you want with any kernel you wish. i just checked.

Tekn010933 said:
It's not that, it's the rooted version and stock de-odex/odex are already on the forum. Just waiting for the full rls of the RUU, rule of thumb from a great one(haus) "never update OVER THE AIR"(OTA)
Click to expand...
Click to collapse
what are you talking about? the latest OTA let us unlock bootloader.

wardriva said:
what are you talking about? the latest OTA let us unlock bootloader.
Click to expand...
Click to collapse
my fault, apologies reading to fast and totally thinking rooting instead unlocking??lol!

hmmm. From the little bit I had read on Evo 3d forum, I thought that even with unlocked bootloader, s-on means no flashing of kernels? Or maybe it's different on 3d cuz it uses EMMC ? Does a custom kernel remain after reboot?
Would love clarification from anyone who knows better than I. Thanks.
Also, this comes just in time for evos EOL status lol. Coincidence ?
Sent from my PC36100 using xda premium

Can you still write to the system or uninstall bloatware with the unlocked bootloader (which is still S-ON)?

To answer some people's questions unlocking with the HTC tool allows you to write to boot(kernel), recovery, and system. This means you can flash custom recovery and ROMs to your hearts content. You will still require official HTC signed updates to change: bootloader, radio, nv, pri, wimax, etc because technically you are still S-ON.
Here is the FAQ from HTC on unlocking the bootloader: http://htcdev.com/bootloader/faq
Why is my security still on (S-On) after I have unlocked my bootloader?
Your device is shipped with Security on (S-ON) to protect your system software configuration (such as the bootloader, radio, boot, recovery, system and others). After you have unlocked the bootloader, however, you will have lifted the restrictions on boot, recovery and system. This means you can customize boot, recovery and system images on your phone as you desire. You can easily see that you have successfully unlocked the bootloader by looking at the top of the screen when entering the bootloader screen. Security is left on to protect things like the radio, and SIM lock.
Click to expand...
Click to collapse

shortydoggg said:
Can you still write to the system or uninstall bloatware with the unlocked bootloader (which is still S-ON)?
Click to expand...
Click to collapse
Just curious about the new bootloader, because based on past bootloaders I've had,
If you are rooted, but still S-ON, you can delete any bloatware (system apps) that you want, but after rebooting the phone it all returns. Why, because there is a backup of how your partitions were on the phone that cannot all be flashed unless you are S-OFF. When you're S-ON, any changes you made to the original partitions, (especially recovery and system if system is done inside the operating system) will be voided the next time you reboot the phone. That is also why you would need to connect your phone to your computer every time you needed to flash a custom ROM (if this is still the case with the new bootloader), because the backup (stock Recovery) is always restored on reboot.
You can change the system partition outside of the operating system by recovery, however; which is the reason why you can still flash custom ROMs (if the new bootloader behaves the same as the older ones).
I'm just curious if anyone with the new (unlocked) bootloader with S-ON can confirm this.

shortydoggg said:
Just curious about the new bootloader, because based on past bootloaders I've had,
If you are rooted, but still S-ON, you can delete any bloatware (system apps) that you want, but after rebooting the phone it all returns. Why, because there is a backup of how your partitions were on the phone that cannot all be flashed unless you are S-OFF. When you're S-ON, any changes you made to the original partitions, (especially recovery and system if system is done inside the operating system) will be voided the next time you reboot the phone. That is also why you would need to connect your phone to your computer every time you needed to flash a custom ROM (if this is still the case with the new bootloader), because the backup (stock Recovery) is always restored on reboot.
You can change the system partition outside of the operating system by recovery, however; which is the reason why you can still flash custom ROMs (if the new bootloader behaves the same as the older ones).
I'm just curious if anyone with the new (unlocked) bootloader with S-ON can confirm this.
Click to expand...
Click to collapse
S-ON + Locked means that all partitions(other than data / sdcard) are write protected. The only way to write to the partitions is with an official OTA or RUU signed by HTC. The reason why "deleted" items return after reboot is because the deletion never actually occurred on the partition itself. It was temporary because the write was blocked by the security.
S-ON + Unlocked means that HTC removed the write protection from: boot, recovery, and system.
For HTC's official FAQ see my post immediately before yours.

illogos said:
To answer some people's questions unlocking with the HTC tool allows you to write to boot(kernel), recovery, and system. This means you can flash custom recovery and ROMs to your hearts content. You will still require official HTC signed updates to change: bootloader, radio, nv, pri, wimax, etc because technically you are still S-ON.
Here is the FAQ from HTC on unlocking the bootloader: http://htcdev.com/bootloader/faq
Click to expand...
Click to collapse
Or get a stock(4.67-Android 2.3.5) ROM that has -Signature Verification disabled which will allow you to update the radios and such.
Is how it use to be done

.Elite_The_King. said:
Or get a stock(4.67-Android 2.3.5) ROM that has -Signature Verification disabled which will allow you to update the radios and such.
Is how it use to be done
Click to expand...
Click to collapse
thanks Cap. but I was not rooted before OTA. and after OTA there is no other way to root or flash custom ROM.

WIP Guide for achieving S-OFF after unlocking Bootloader with HTCDev.com
[GUIDE][WIP] How to achieve S-OFF after unlocking 2.18 HBOOT with HTCDev.com - No More Watermark! )
Still working on the details, but a shell of the instructions is there .

Tekn010933 said:
It's not that, it's the rooted version and stock de-odex/odex are already on the forum. Just waiting for the full rls of the RUU, rule of thumb from a great one(haus) "never update OVER THE AIR"(OTA)
Click to expand...
Click to collapse
DISCLAIMER: I'm a noob in this root world.....and enjoying the freedom to use my phone as I choose.
With that said, if you do not recommend updating OTA, then how would a person do such? I'm asking for my friends who are run stock on their phones.

[Q] Everyone keeps talking about bootloader downgrade

But what is it exactly? What does it mean?
I mean I already did Autorec and all I know is that it downgraded the bootloader. No idea what that actually means, so I can understand what happened and more importantly how can I restore it (i.e upgrade it back) and what are the consequences of these actions.
Any developer around that can actually explain?

Zalmoxis12 said:
But what is it exactly? What does it mean?
I mean I already did Autorec and all I know is that it downgraded the bootloader. No idea what that actually means, so I can understand what happened and more importantly how can I restore it (i.e upgrade it back) and what are the consequences of these actions.
Any developer around that can actually explain?
Click to expand...
Click to collapse
Jellybean (12B) was the last bootloader to be able to be used with loki (the exploit to be able to flash custom recoveries/ROMs/kernels). Google patched the bootloader in the KitKat update (24A) so loki was useless. You could root, but couldn't flash the previously mentioned items. Being able to downgrade the bootloader allowed this. So even tho you'd be running KK, you're using a JB bootloader.

simon_lefisch said:
Jellybean (12B) was the last bootloader to be able to be used with loki (the exploit to be able to flash custom recoveries/ROMs/kernels). Google patched the bootloader in the KitKat update (24A) so loki was useless. You could root, but couldn't flash the previously mentioned items. Being able to downgrade the bootloader allowed this. So even tho you'd be running KK, you're using a JB bootloader.
Click to expand...
Click to collapse
I know this. I was asking what the bootloader actually is and how does it relate and connect with the other partitions.
Is it like some sort of MBR?

Zalmoxis12 said:
I know this. I was asking what the bootloader actually is and how does it relate and connect with the other partitions.
Is it like some sort of MBR?
Click to expand...
Click to collapse
http://searchenterpriselinux.techtarget.com/definition/boot-loader

Zalmoxis12 said:
I know this. I was asking what the bootloader actually is and how does it relate and connect with the other partitions.
Is it like some sort of MBR?
Click to expand...
Click to collapse
bootloader loads all the partitions and makes sure they work together, two examples of the stuff bootloader handles:
-bootloader boots
-bootloader then loads kernel making sure nothing wrong and if there is then you get no boot and instead you are thrown to fastboot to fix the problem
-after kernel loads bootloader loads system if corrupted/missing you get stuck in a bootloop unless you have custom recovery then you get stuck in recovery
-bootloader loads rest of partitions while the system/kernel begin to boot rom
when doing ota:
-phone reboots and loads bootloader
-bootloader loads ota into a partition on phone designed to decompile and apply ota into system/kernel partitions
-bootloader makes sure that system/ota are correct and compatible to apply update
-bootloader does root check process in the rtf partition and if rooted bootloader cancels ota process
so in short bootloader is most important asset, it is what decides the kernel to boot(you can mod a bootloader so that you can have too kernels and this is also how you create multi boot for boot more than one rom), it boots the rom, and it handles all other partitions in more than one way

Locked Bootloader / Updating

So I think I know the answer but wanted to validate. If I leave the bootloader locked on my device and download a factory image from Google, cannot I just put the zip on the sdcard storage and run it through recovery to update? I don't think that I need to unlock the bootloader do I? I am trying to keep everything stock for now, but updates are a big reason I wanted this phone. Also don't want to break Android Pay. Thanks in advance.

Read this entire guide: http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
locked or unlocked, you arent flashing a factory image in TWRP

Let me rephrase the question based on the article below. Does this still work with the Nexus 6P to do this with a locked bootloader?
http://www.droid-life.com/2013/02/1...date-a-nexus-without-root-or-custom-recovery/

roaddaw9 said:
Let me rephrase the question based on the article below. Does this still work with the Nexus 6P to do this with a locked bootloader?
http://www.droid-life.com/2013/02/1...date-a-nexus-without-root-or-custom-recovery/
Click to expand...
Click to collapse
you can update via recovery with locked bootloader but you need update file.. Not factory image..

Michalko5896 said:
you can update via recovery with locked bootloader but you need update file.. Not factory image..
Click to expand...
Click to collapse
That was the piece I was missing, thank you

OTA updates with Unlocked Bootloader

Hello,
after I've unlocked the bootloader can I still get OTA updates?
I'll just be on stock ROM with root. I also make a backup with nothing on except TWRP.

Lets hope so

LanceM said:
Lets hope so
Click to expand...
Click to collapse
have you tried it?

Yes you'll be able to get new updates with unlock bootloader.

DrakenFX said:
Yes you'll be able to get new updates with unlock bootloader.
Click to expand...
Click to collapse
Can you elaborate on this? The last I heard unlocking the bootloader (using the official procedure) stops OTA. Has this changed ?

mh127 said:
Can you elaborate on this? The last I heard unlocking the bootloader (using the official procedure) stops OTA. Has this changed ?
Click to expand...
Click to collapse
I never said Official getting OTA's , but i believe this is going to change staring with the new Unlock Bootloader procedure.

DrakenFX said:
I never said Official getting OTA's , but i believe this is going to change staring with the new Unlock Bootloader procedure.
Click to expand...
Click to collapse
OK, but AFAIK even with the unofficial unlock (with TWRP and root) the OTA will fail - unless you unroot and go back to locked stock bootloader. Correct me if I am wrong.

mh127 said:
OK, but AFAIK even with the unofficial unlock (with TWRP and root) the OTA will fail - unless you unroot and go back to locked stock bootloader. Correct me if I am wrong.
Click to expand...
Click to collapse
In my experience, what makes the difference - so far - is the recovery. Official ZTE updates and ROMS only flash through the stock recovery.
Unlocked bootloader has made no difference to me.

mh127 said:
OK, but AFAIK even with the unofficial unlock (with TWRP and root) the OTA will fail - unless you unroot and go back to locked stock bootloader. Correct me if I am wrong.
Click to expand...
Click to collapse
If you try to flash Official OTA yes will fail, cuz isn't modded to skip partitions check.

DrakenFX said:
If you try to flash Official OTA yes will fail, cuz isn't modded to skip partitions check.
Click to expand...
Click to collapse
This is getting confusing. "Getting OTA updates" (as OP asks) usually means that the update installs "on its own" by tapping notification rather than flashing via recovery, which is a bit more complicated process.
So back to the OP question: With root and TWRP can one get over-the-air official updates from ZTE without going to the recovery manually? I believe the answer to that is NO.
That said, there is probably a work around in getting the update, probably by manually flashing partitions that have changed in the update.
Is this right?

mh127 said:
This is getting confusing. "Getting OTA updates" (as OP asks) usually means that the update installs "on its own" by tapping notification rather than flashing via recovery, which is a bit more complicated process.
So back to the OP question: With root and TWRP can one get over-the-air official updates from ZTE without going to the recovery manually? I believe the answer to that is NO.
That said, there is probably a work around in getting the update, probably by manually flashing partitions that have changed in the update.
Is this right?
Click to expand...
Click to collapse
Well OPs Question actually was if OTA Updates are possible with unlocked boot-loader...
Root and TWRP is a whole different scenario and won't work with OTA for sure as OTA needs stock recovery and will check for unmodified system (not rooted)...
But if you are on stock with unlocked bootloader you should get notified about OTAs (as until now it did not check for bootloader lock status, but that could change in future) although I don't know if it will install correctly

Gachmuret said:
Well OPs Question actually was if OTA Updates are possible with unlocked boot-loader...
Root and TWRP is a whole different scenario and won't work with OTA for sure as OTA needs stock recovery and will check for unmodified system (not rooted)...
But if you are on stock with unlocked bootloader you should get notified about OTAs (as until now it did not check for bootloader lock status, but that could change in future) although I don't know if it will install correctly
Click to expand...
Click to collapse
OP mentioned that he used TWRP to make a backup, I assumed he has replaced stock recovery with TWRP, but that may not necessarily be the case.

If your device has an bootloader that was unlocked "unofficially" (either via sideloading the official unlock method or DrakenFX & Unjustifieddev's method), but is still completely stock (stock System, stock Boot, stock Recovery, stock everything besides the unlocked bootloader), you can still receive and apply OTAs. However, if you changed any of the partitions, like boot.img (root), recovery.img (TWRP), system.img (changes to system), you will still receive the OTA, but you won't be able to apply it, the update will fail. If you went through the official bootloader unlocking process, which involved you submitting a form to ZTE with your device's IMEI, you would no longer be able to receive OTAs.
What I did was sideload the official B20_Boot on by B20 device, unlocked my bootloader, flashed TWRP, flashed the TWRP Stock B20 dumps that were posted here on XDA, and reflashed stock recovery. This made my device completely stock B20 besides the unlocked bootloader. I then applied the official B27 OTA update, and it installed fine. I then reflashed TWRP (since my bootloader was still unlocked) and re-rooted my device.
If a new update comes out, I can just reflash the stock B27 TWRP dump posted here on XDA, reflash stock recovery, (if needed, reflash stock fastboot), and apply OTA.

xtermmin said:
...
What I did was sideload the official B20_Boot on by B20 device, unlocked my bootloader, flashed TWRP, flashed the TWRP Stock B20 dumps that were posted here on XDA, and reflashed stock recovery. This made my device completely stock B20 besides the unlocked bootloader. I then applied the official B27 OTA update, and it installed fine. I then reflashed TWRP (since my bootloader was still unlocked) and re-rooted my device.
If a new update comes out, I can just reflash the stock B27 TWRP dump posted here on XDA, reflash stock recovery, (if needed, reflash stock fastboot), and apply OTA.
Click to expand...
Click to collapse
So, with this procedure, do you lose all the app installations/other customizations? I believe that all of the application data is on a non-system partition (/data?) but did you need to go through all of the setting up of the phone after you did the upgrade this way?

rayman2k1 said:
So, with this procedure, do you lose all the app installations/other customizations? I believe that all of the application data is on a non-system partition (/data?) but did you need to go through all of the setting up of the phone after you did the upgrade this way?
Click to expand...
Click to collapse
Yes. Unlocking the bootloader does a factory reset, and doing a TWRP restore of a stock image (which overwrites your current partitions) overwrites what you had before.
EDIT: Actually, I think Internal Storage gets erased as well, but your microSD card will be fine.

xtermmin said:
Yes. Unlocking the bootloader does a factory reset, and doing a TWRP restore of a stock image (which overwrites your current partitions) overwrites what you had before.
EDIT: Actually, I think Internal Storage gets erased as well, but your microSD card will be fine.
Click to expand...
Click to collapse
Hmm, had guessed as much. I knew the bootloader unlocking did a wipe, but was hoping that recovery-flashing would do a backup/restore, as if the update had been applied through the in-ROM update procedure. Unless the OTA process only gets deltas and flashes them, leaving fs intact.

rayman2k1 said:
Hmm, had guessed as much. I knew the bootloader unlocking did a wipe, but was hoping that recovery-flashing would do a backup/restore, as if the update had been applied through the in-ROM update procedure. Unless the OTA process only gets deltas and flashes them, leaving fs intact.
Click to expand...
Click to collapse
Yeah, the OTA doesn't straight-up replace partitions, it checks and patches the existing partitions, so if a partition has been changed, the OTA install will fail.

[OTA] Marshmallow Build MCG24.251-5-5

Here is the latest OTA. Verizon says it has security (*cough* Sunshine *cough*) patches. I can confirm that it does not re-lock an unlocked bootloader. It's so minor, they just decided to slap an extra -5 on it.
https://www.androidfilehost.com/?fid=745425885120733909
Do not take this if your bootloader is locked and you'd like to unlock it at some point. If you'd like to unlock it at some point, do it now! What are you waiting for?
You cannot flash this with TWRP.

TheSt33v said:
Do not take this if your bootloader is locked and you'd like to unlock it at some point.
Click to expand...
Click to collapse
There, fixed it for you.
Gotta bold the important stuff.

ChazzMatt said:
There, fixed it for you.
Gotta bold the important stuff.
Click to expand...
Click to collapse
You're inhibiting natural selection.

TheSt33v said:
Here is the latest OTA. Verizon says it has security (*cough* Sunshine *cough*) patches. I can confirm that it does not re-lock an unlocked bootloader. It's so minor, they just decided to slap an extra -5 on it.
https://mega.nz/#!70Zh1BbS!cC_mZ8xouLVwvMlOZLKW2UyC-JXDS7SdnCjxDoafXbI
Do not take this if your bootloader is locked and you'd like to unlock it at some point. If you'd like to unlock it at some point, do it now! What are you waiting for?
You cannot flash this with TWRP.
Click to expand...
Click to collapse
hweew ... new kernel ...
could you upload it?

3Dota said:
hweew ... new kernel ...
could you upload it?
Click to expand...
Click to collapse
TWRP flashable, including kernel, version will be up shortly.

TheSt33v said:
TWRP flashable, including kernel, version will be up shortly.
Click to expand...
Click to collapse
Any modem updates?

koftheworld said:
Any modem updates?
Click to expand...
Click to collapse
Yes. Will also be included in TWRP version.

Yee!

I'm already unlocked on Stock with Stock recovery, and tried taking the OTA, but got an error when it rebooted to install
Sent from my XT1254 using Tapatalk

mustafu said:
I'm already unlocked on Stock with Stock recovery, and tried taking the OTA, but got an error when it rebooted to install
Sent from my XT1254 using Tapatalk
Click to expand...
Click to collapse
Have you done any modifications at all? Even in the past? For example, if you were rooted and then unrooted, if any files were left over from that process, the update will fail. If you had xposed and removed it, same deal. Even if you replaced your emoji file with an updated one, that will also cause it to fail. Did you modify build.prop? Fail.
The only way to be sure that it will pass is to reflash MCG24.251-5 with fastboot before taking the OTA. Or you could always do it the easy way and flash MCG24.251-5-5 with TWRP: https://forum.xda-developers.com/droid-turbo/general/rom-mcg24-251-5-5-100-stock-t3565795

I have a "system update paused, waiting for wi-fi" in the status bar. I don't want to take this update - can someone help me remove the notification, and block future updates? I have bl unlocked and rooted...
Tia

I'm running 24.81.5 and just received 24.91.5. Did not install. Unlocked and rooted. If I take this will it fail or cause issues?
Sent from my XT1254 using XDA-Developers Legacy app

g0ndor said:
I have a "system update paused, waiting for wi-fi" in the status bar. I don't want to take this update - can someone help me remove the notification, and block future updates? I have bl unlocked and rooted...
Tia
Click to expand...
Click to collapse
Install titanium backup and freeze the app called Motorola Update Services.

Shtiff1 said:
I'm running 24.81.5 and just received 24.91.5. Did not install. Unlocked and rooted. If I take this will it fail or cause issues?
Sent from my XT1254 using XDA-Developers Legacy app
Click to expand...
Click to collapse
It will fail. Any modifications at all (like root or TWRP, for example) will cause the update to fail.

So I'm guessing it's for "security" issues. So I really don't need to take this, because it involves to much crap... Unrooting, cleaning cache, reflashing, having to do the phone over again, etc.... If that is all true, then how can I get rid of the system update?

g0ndor said:
I have a "system update paused, waiting for wi-fi" in the status bar. I don't want to take this update - can someone help me remove the notification, and block future updates? I have bl unlocked and rooted...
Tia
Click to expand...
Click to collapse
Download "Disable Service" from the play store

TheSt33v said:
It will fail. Any modifications at all (like root or TWRP, for example) will cause the update to fail.
Click to expand...
Click to collapse
I'm not aware of any modifications, I thought I went back to all stock. Recovery says qe 1/1, is it supposed to be 0/1?
Sent from my XT1254 using Tapatalk

mustafu said:
I'm not aware of any modifications, I thought I went back to all stock. Recovery says qe 1/1, is it supposed to be 0/1?
Click to expand...
Click to collapse
If you look at the update script for the OTA, the first two thirds of it are dedicated to checking the system partition (and maybe other partitions. It's a pretty long read and I certainly haven't read all of it) for modifications. If the update is failing, that means it has detected something that does not match what it is checking for. I don't think the qe flag matters, because in the past I'm pretty sure that I've been at 1/1, and after a successful OTA it changes to 0/1.

trial TWRP or temp TWRP custom recovery
trial TWRP or temp TWRP custom recovery
TheSt33v said:
If you look at the update script for the OTA, the first two thirds of it are dedicated to checking the system partition (and maybe other partitions. It's a pretty long read and I certainly haven't read all of it) for modifications. If the update is failing, that means it has detected something that does not match what it is checking for. I don't think the qe flag matters, because in the past I'm pretty sure that I've been at 1/1, and after a successful OTA it changes to 0/1.
Click to expand...
Click to collapse
Don't know if this would help someone install an update like this, but let me throw this out there. There's a way to boot to TWRP custom recovery and use TWRP without installing TWRP. Think of it as "temporary" TWRP.
Thus, you should still be able to flash stuff, including any TWRP-flashable updates, boot logos (to replace the unlocked bootloader warning, SuperSu, etc -- and when you reboot you still have stock recovery.
Now, I don't know why anyone would want to keep stock recovery when TWRP recovery does so much more... But I just recently helped someone with the same suggestion. He wanted to install SuperSu, get root, but keep stock recovery -- for some reason.
Anyway, think of it as "trial TWRP" or "temp TWRP".
I remembered when I made factory images for my Quark, in a variety of states, I used this temporary TWRP trick. I'd almost forgotten about it!
So, seems like you could flash THIS TWRP-flashable version of this update while temporarily booting to TWRP (but not actually installing it), and it wouldn't matter if everything "checked" out or not.
Of course, if you like it, then you can always install it permanently.
For reference, here's the most recent version of TWRP for our phone. (use the one with the most recent post date. @bhb27 updates it fairly often.)
TWRP FOR QUARK
https://www.androidfilehost.com/?w=files&flid=39562
Here's my complete reply:
______
Rahuld107 said:
@ChazzMatt,
Hi, can i root xt1225 using temporary twrp ( one time method). I don't need twrp/custom recovery. Just want root with stock recovery. I am on stock marshmallow, bootloader is unlocked .
Click to expand...
Click to collapse
TEMPORARY TWRP
OK, here's another suggestion. There is a way to boot to TWRP to install SuperSu but NOT install TWRP. You will not be flashing TWRP over stock recovery. You will STILL have stock recovery when you reboot. Think of it as "temporary" TWRP.
Put the TWRP file in your ADB folder and use this command. Your phone will boot to TWRP, but it will not be permanently installed. You can then flash SuperSu while booted into the TWRP interface and then reboot back to your system.
fastboot boot file-name.img (whatever your file name of TWRP is.)
Whereas, the command to permanently install TWRP is this:
fastboot flash recovery file-name.img (whatever your file name of TWRP is.)
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Back when I first got this phone -- now over two years ago -- I made a bunch of backups in TWRP and posted the images online in various stages -- pure stock, stock + root, stock + root + TWRP. I made the first two with the "temporary" TWRP. People could flash them and already have root without having TWRP installed.
Moto Maxx - Moto Turbo XT1225 factory images (Mexico | Puerto Rico | India | Brazil)
https://forum.xda-developers.com/moto-maxx/development/moto-maxx-moto-turbo-xt1225-factory-t3078274
1) TWRP BACKUPS which I made in various stages, such as
stock, unrooted
stock + rooted
stock + rooted + permanent TWRP
Click to expand...
Click to collapse
See? Even just stock + rooted but with no TWRP. I made that backup with a "temporary" TWRP which did not overwrite the stock recovery.
But they were only for 4.4.4 Kitkat, which came with this phone. After we went to Lollipop, I posted some more images, but just pure factory. Still, the "temporary" TWRP trick is useful.

Is it just me or the Gallery app in 6.0.1 scrolls really slow? Btw i didnt do a clean update from LP in case that could be the reason