yashsingh1/xdaforums huggingface dataset:
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] bsoplinger:
I assume that the reason this TWRP is a bit flakey is because it wasn't actually modified specifically for the Yoga Book? I had quite the frustrating experience trying to flash root. But by taking it slow, being very careful with exactly where I pressed and sliding slowly I got it to work. Thanks to the OP for providing. I'm very happy with my rooted Yoga Book.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] erfanoabdi:
[MENTION=4477649]danjac[/MENTION] may i ask you to release your device tree

i want to work on win/(official lenovo)android dual boot
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] danjac:
hi, i didn't build twrp from scratch. as i wrote, i just altered the existing one from the yoga tab pro...so there is no device tree available.

all the files i changed can be found by unpacking the twrp.img from the op.

files like the recovery.fstab / boardconfig.mk can be found there. i adjusted them to fit the lenovo yoga book.

unfortunately i don't have them seperately, anymore. SORRY.

i really hope it helps.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] erfanoabdi:
oh ok man, thats cool, maybe i'll create one when i get my hand on it ;)
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] nachordez:
[Solved]

I'm not able to boot into TWRP in the OP. I've unlocked my Yoga Book (BTW, and android one and in 7.1.1), but when I send the fastboot boot recovery_twrp.zip (I'm on linux, with proper adb working, and as a superuser), the tab reboots again into bootloader, with a red text in the bottom that says:

bzImage kernel corrupt

couldn't load boot image: Invalid Parameter

I don't know if that was previous to 7.1.1 update, and now it's not working. I've downloaded 3 times the twrp zip, with the same md5sum, so, It does not seem to be corrupt.

¿Any idea?

Thx

-----

I've should have read better. What is to be flashed to boot it's the .img inside the .zip, not the zip :-/

Everything works fine now!
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] Acorrales:
Hi everybody, Is somebody here having problems in restoring Android N nandroids with TWRP? I did a fresh stock backup as soon as I update my tablet (And I did it twice, just in case of a corruption) But it just don't boot. The Tablet gets stuck in the lenovo logo. I restore the last Nandroid before that update and everything works ok. So, I don't know if there is any difference between the M and the N backups, or if I'm doing something wrong... (It's a PITA to update the tablet every time I softbrick it, to get the latest firmware).
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] Harvester10660:
Stuck in bios menu

Hi, hope someone can help.

My yoga book is currently stuck in bios menu and I cant access recovery via volume up with power or any other combinations. Does anyone know if i can flash this back to its original form? Also my pc does not recognise when i plug in via usb.

Thanks
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] joesnose:
If you can get into dnx mode......

Flash stock rom from here.

https://www.google.co.uk/amp/s/xdaf...novo-yoga-book-nougat-stock-rom-t3753942/amp/

Should fix your issue.

I dont have yogabook but on yoga tab 3 pro i power on with both volume buttons pressed to get to dnx mode.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] Harvester10660:
Thanks.

Can I do this even if the Bootloader is locked?

I managed to get into dnx and then recovery menu but it show the bootloader as locked.

Thanks Again.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] joesnose:
doesnt need bootloader to be unlocked, its intel factory level flashing.

I might suggest you take a look round the net to see if the stock rom exists anywhere else. Just in case there are any issues with that download.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] hajkan:
https://xdaforums.com/yoga-book/how-to/lenovo-yoga-book-nougat-stock-rom-t3753942

Recovery works but cant backup failes to mount "/data", it says
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] jazzunam:
Lenovo Yoga A12

Hello everyone, I have a Lenovo Yoga A12 tablet and would like to ask if anyone knows how to root or install a recovery twrp on this device please?

Thanks and regards.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] saw tha moo:
could you explain me more on "open terminal and naviagte to your adb folder (with recovery.img in it) that I don't know how to do it
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] saw tha moo:
Hello, I followed it and it is appeared that "No such file or directory", could you help me..... I want to have root
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] danjac:
hey, sorry I don't know what you refer to? What did you follow? When or Where do you get 'no such file...'?

If you want help, please give a precise description of your problem.

cheers
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] saw tha moo:
Sorry for confusing you, I mean I downloaded "recovery_twrp.zip" and keep it in my add folder and proceed it, and command to "adb reboot bootloader" is reached well but when I proceeded to "fastboot boot recovery_twrp.img" it, I am not succeeded, It is appeared that "the system can't find the specific path" or "No such file or directory" or "is not recognized as an internal or external command, operable program or batch file" I am few knowledge on cmd and adb so could you explain simply to me, many many thanks
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] ruanw92:
Hey Guys,

I thought you all should know, its not a good idea to use TWRP with the Lenovo Yoga Book.

There are two reason, its the bootloader and the CPU.

The TWRP is design for specific CPU such as snapdragons. It was not design for Intel in which is the Yoga Book CPU.

Second, the bootloader to the Yoga Book is locked. What it means is that you cannot root the system without the proper permission.

If we could have root the system, there will be no point of Lenovo to sell Windows and Android version.

But even so there is no such thing as impossible, pretty sure if the community spend enough time and resource, we can probably find a way to unlock the bootloader
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] danjac:
???

even if your post is about a month old i still need to reply.

what you claim in it is just pure nonesense, it doesn't make any sense at all.

we can unlock the bootloader.

you can flash twrp safely (at least for the older android versions)

and root can easily be obtained

furthermore the roms were specifically compiled for its hardware, so it doesn't matter that it is an intel cpu. so this version of twrp is based on the same source, or it wouldn't work,

but evidently it does

next time, please inform yourself more thoroughly, before you post your wisdom

cheers
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] ruanw92:
Hi,

First of all, I would like to say thank you for answering after a month later.

I would like to say I am referring to the Android Yoga Book. I can agree we can now unlock the bootloader and root the device. As you said, the roms are compiled for specific hardware. However, there are currently no custom rom the that allows all the features of the Yoga book to function. So my previous post is a simple warning, that any attempt to install a custom rom can cause an irreversible effect on the tablet.

But I do agree, eventually we will find a way to install a custom rom with full function the Yoga Book.

If you like to discuss more with me about this, do dm. :laugh:
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] danjac:
oh really you refer to the android version, how very interesting. seriously, we can 'now' unlock and root. it has been more than 2 years since i modified a twrp version and rooted the device via magisk.

and you do know that twrp is not a custom rom.

and who the f... would want to install a rom which is not built for this device. simply put, there are NO custom roms because there are absolutely no devs who were or are interested in that device!

this twrp it is based on android for intel devices and was built from the corresponding source (yoga tab 3 pro, with the same hardware).

honestly, please try to impress people with your ignorance somewhere else. the things you post don't make any sense. please stop wasting people's time with ignorant warnings.

i say it one more time - contrary to your claim in post 51 twrp is functional and safe to use.
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] Maikel Van Der Graaff:
cant get it to twrp

i try to boot into twrp but it says waiting for device my bootloader is unlocked

any suggestions:D

i use adb powershell

connect with tablet

open powershell

type in adb devices

then it shows devices

then i boot into fastboot

then i use the command to boot into twrp but then it says waiting for device nothing happen do

the twrp image is in the adb folder
[Lenovo Yoga Book ROMs, Kernels, Recoveries, & Othe] Xcion54:
hajkan Thank You so much for creating this, I found this thread just now. is there any way to flash TWRP permanently, I hate stock recovery the twrp version you made works amazing and I want to be able to boot into this all the time
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
Cleaning this up and clarifying as my original post was vague:

It is recommended that you unlock your bootloader before the 7.0 Nougat update. Although it will still be possible the process will be more difficult and risky afterwards.as you will need to use one of the edl mode tools (axon7backup, axom7tool).

The easiest way is to download this kit f you have the A2017U: (I can't speak to other models) (This kit and instructions are thanks to [MENTION=5672995]jcadduono[/MENTION])

https://build.nethunter.com/misc/axon7/AXON7-A2017U-BL-UNLOCK-KIT.zip

https://build.nethunter.com/misc/axon7/INSTRUCTIONS.txt

The basic steps, which the above zip with take you through in detail are:

1. Flash Official B20 , enable OEM UNLOCKING after flashing.

2. Flash BLFastboot zip provided by ZTE when they had unlock method.

3. Enable OEM UNLOCKING in Developers Option

4. Boot to Bootloader

5. type : fastboot oem unlock

6. Done

Note: If you do not have the OEM UNLOCKING flag set in developer options you will get a soft brick. Also bear in mid this will wipe data.

All that being said I've heard Nougat to is going to be great from those in the know. In their words ”Well worth the wait! Hang in there!” from a HIGHLY credible source.
[ZTE Axon 7 Guides, News, & Discussion] lafester:
Why would anyone relock before update? I do agree anyone who wants to unlock should do it now.
[ZTE Axon 7 Guides, News, & Discussion] Oki:
OK, so just to make it quick, for everyone, unlock your bootloader sooner than later. It is safe since you can revert it to a locked state at any time later.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
I do it on occasion to test things I'm working on. Better to warn people who might do it to get PoGo or SafetyNet working I figured.
[ZTE Axon 7 Guides, News, & Discussion] Oki:
No need to bootloader lock an Axon 7 to get SafetyNet (Android Pay, PoGo, etc). Just do it the XDA way. But never relock!!!!
[ZTE Axon 7 Guides, News, & Discussion] mischa_martin:
Could one of you guys explain whats so dangerous about relocking bootloader since u seem to know something I don't.

I have unlocked and relocked my bootloader several times by fastboot oem lock and restoring my stock fbop partition.

Have I done something wrong? :p

Regards,

mischa_martin
[ZTE Axon 7 Guides, News, & Discussion] lafester:
Read the OP.
[ZTE Axon 7 Guides, News, & Discussion] stevecaboose:
I think what the op is trying to say is that by unlocking the bootloader you won't get ota updates. You would need to wait until a twrp flashable update is out or a rom running Android 7.
[ZTE Axon 7 Guides, News, & Discussion] BIGWORM:
That's how it's been since modifying the bootloader was a thing. Unlocked bootloader = no OTA.
[ZTE Axon 7 Guides, News, & Discussion] DrakenFX:
[MENTION=4461787]stevecaboose[/MENTION]

Unlocking Bootloader = Yes to OTA's.

Modding System and Boot = NO OTA's

hope that clear things up.
[ZTE Axon 7 Guides, News, & Discussion] BIGWORM:
Close enough lol!
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
To be clear, it would be best to unlock before N is pushed out. I have it on good authority that unlocking your bootloader after you update to N will be more difficult and risky. Relocking would put you in the same situation. It's trivial to return to stock system+boot with an unlocked bootloader and TWRP and then the OTA will come through just fine. Or you can just wait for the TWRP flashable N stock ROM.
[ZTE Axon 7 Guides, News, & Discussion] ScaryBugThing:
So to be clear, since I'm not 100% sure what affects the "system" and "boot" areas: I can unlock my BL using

only

guide 2 in this link ( https://xdaforums.com/axon-7/how-to/guide-install-twrp-unlock-bl-flash-t3517379 ) and still get OTAs? If I install TWRP does that make me OTA-ineligible?
[ZTE Axon 7 Guides, News, & Discussion] raystef66:
TWRP/BL unlock doesn't affect OTA, ROOT does.
[ZTE Axon 7 Guides, News, & Discussion] DrakenFX:
You're totally wrong there,

TWRP will affect OTA's if the OTA need to check/patch recovery, BUT been Bootloader Unlock will NOT effect OTA.

To manage a clean/successful OTA's installation, you need to be FULL STOCK. (System, boot, Recovery, aboot if the OTA need to patched).
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
I think the OP was trying to say that it's possible current tools will not work to unlock the bootloader after the 7.x ota is installed.
[ZTE Axon 7 Guides, News, & Discussion] raystef66:
I'm not fully agreed with that. You can install OTA's when you receive it, download it, install it when first booted into twrp cache. Only if you're not rooted. When you're rooted first unroot and in principle this should work.

There are several cases on internet about that. Even I did it with an unrooted but TWRP-ed Zopo C2. Received an OTA and installed it.

Im always glad to learn but IMO there are some possibilities to do the ota after all. But I am willing to accept it's a general fact that twrp could affect the normal OTA.

Edit : let's wait and see when B10 is rolling out and if I get a notification about that and if I can install it as a normal OTA(not with SD) with TWRP. Keep you updated:cyclops:
[ZTE Axon 7 Guides, News, & Discussion] eladmitz:
Noob here, forgive me :)...

So what is the best way to only unlock bootloader without flash twrp?

A2017U, B29.

Thanks
[ZTE Axon 7 Guides, News, & Discussion] felipe.vella:
I`m on the same boat. What should be the safer procedure to unlock BL an still get the N OTA?
[ZTE Axon 7 Guides, News, & Discussion] DrakenFX:
1- Download Official B20 from ZTE SITE (look Software Updates for the 6gb variant)

2- look in the forum for the B20fastboot zip file

3- Move both files to your SDCARD.

4- Enable OEM Unlocking under Developers Option

5- boot to stock recovery.

6- Install B20 official update via SDCARD (this will wipe Data)

7- boot and re-enable OEM Unlocking

8- boot to recovery and install B20fastboot zip

9- boot to Bootloader and Unlock bootloader using this command.

fastboot oem unlock

If I remember correctly will reboot and factory reset the device , you'll need to re-enable OEM UNLOCKING and boot to Bootloader to flash TWRP 3.0.3 USING fastboot commands
[ZTE Axon 7 Guides, News, & Discussion] eladmitz:
Thank you very much!
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
Official B20 was pulled from ZTE’s site.

Download this file it has everything you need plus detailed instructions.

https://build.nethunter.com/misc/axon7/AXON7-A2017U-BL-UNLOCK-KIT.zip
[ZTE Axon 7 Guides, News, & Discussion] LifeSupportZ:
official b20 still on ZTE site, just under the software update for the 6gb - 128gb variant, i just chek and is there.

the regular axon 7 (4gb variant) have the b29.
[ZTE Axon 7 Guides, News, & Discussion] chrisrodsa210:
And how exactly do you relock the bootloader, and flash the stock recovery back? Or more specific, revert completely back to stock and locked bootloader?
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
You don't need to relock the bootloader. Just need stock recovery. Restore from the backup you made when you installed twrp.
[ZTE Axon 7 Guides, News, & Discussion] chrisrodsa210:
TWRP replaces the Stock recovery? I only have a backup of stock B29.
[ZTE Axon 7 Guides, News, & Discussion] doyou37:
u guys realize we're not getting nougat right?
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
How do you figure?
[ZTE Axon 7 Guides, News, & Discussion] DrakenFX:
Maybe you,if you don't want to update, but everyone else with Axon 7 will:highfive: ,;)
[ZTE Axon 7 Guides, News, & Discussion] Wlkchnbndgr:
:silly: Troll :silly:
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
You can't relock with B29 bootloader but it is possible with B20 bootloader/recovery.
[ZTE Axon 7 Guides, News, & Discussion] Narada2XK:
Why do you require this just to unlock the bootloader? Why can't I just turn on the OEM unlock switch in developer settings and then run the fastboot oem unlock in the bootloader? Won't I still receive OTAs since I did not modify anything?
[ZTE Axon 7 Guides, News, & Discussion] lafester:
Because you can't?

Read through the unlocking guides for more info.
[ZTE Axon 7 Guides, News, & Discussion] DrakenFX:
Cuz WON'T / DOESN'T work like that, Enabling OEM Unlocking is just 1 STEP for Full BL Unlock and having Unlock Bootloader doesn't Stop OTA's by the way.
[ZTE Axon 7 Guides, News, & Discussion] iitywygms:
Okay.

From this thread I get advise to unlock my bootloader before updating to N.

But you cant get ota update if you unlock bootloader.

And the link in op first post, is dead.

Confusion.
[ZTE Axon 7 Guides, News, & Discussion] Narada2XK:
I did but it's weird. The OEM unlock isn't available as a command unless you update to at least a particular version. Alright cool. Then you heard the stories that if you unlock the bootloader that you no longer can have OTAs. Now I'm reading that once you don't interfere with the various partitions or system that you can receive OTAs. That's why I wanted to know what's so important about this zip if all you want to do is unlock the bootloader and nothing else.
[ZTE Axon 7 Guides, News, & Discussion] lafester:
What version are you talking about? If you have a better way of unlocking please share.

Regarding the .zip, it's just everything needed to unlock put together in one file.

---------- Post added at 06:36 PM ---------- Previous post was at 06:29 PM ----------

Of course you can. It's mentioned many times. Of course once unlocked, taking ota is pointless as Draken or someone will have a flashable up in no time.

No need for the link, there are many guides just pick one you like.
[ZTE Axon 7 Guides, News, & Discussion] chrisrodsa210:
How do you relock the bootloader?
[ZTE Axon 7 Guides, News, & Discussion] stevecaboose:
Im getting a 404 on that link in the op
[ZTE Axon 7 Guides, News, & Discussion] emtownsend:
Even if posted elsewhere, it's helpful to relink to the latest working method once in a while. (I'd post it, but I don't know it either)
[ZTE Axon 7 Guides, News, & Discussion] moccor:
I too would appreciate a re-link, since I haven't done anything with the Axon 7 and would like to unlock before Nougat.
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
Everything there is available in other threads. The archive in the OP is over 2.5 GB in size, and includes all the ota's.

http://i.imgur.com/ufZUoeK.png

I'm not sure what happened to step 3 in the instructions.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
In the OP there's a step by step guide in the zip.
[ZTE Axon 7 Guides, News, & Discussion] moccor:
Thanks, I did end up downloading it but decided to wait around for more info, appreciate it
[ZTE Axon 7 Guides, News, & Discussion] parmar.saab:
Link in OP not working
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
Link fixed link to instructions added. (thanks on all this goes to jcadduono)
[ZTE Axon 7 Guides, News, & Discussion] baconboy:
Can anyone confirm they've followed the steps in the OP with the zip from nethunter.com and it worked?
[ZTE Axon 7 Guides, News, & Discussion] TheChuckIII:
Confirming it worked

Unlocked then rooted with twrp using the zip. Excellent set of files
[ZTE Axon 7 Guides, News, & Discussion] codahq:
So... the reason to do this opposed to going to ZTE's webpage and unlocking the bootloader is that ZTE doesn't know about it and in theory you can still get warranty service? What's the point of this? I thought ZTE offered bootloader unlocking for this device. And the reason I ask is because the instructions call out that performing these actions will void the warranty. Is the author of the instructions just covering his butt? Is warranty lost from flashing these files?
[ZTE Axon 7 Guides, News, & Discussion] baconboy:
Goddamn. I'm stuck! When I boot into bootloader, my Windows 10 PC doesn't see it so I can't open command prompt? I've installed the ADB drivers.

EDIT: OK, actually I do see it. The instructions aren't clear. I thought that the phone would show up in File Explorer, but actually you have to right click and run command prompt FIRST then you'll see it when you type fastboot devices
[ZTE Axon 7 Guides, News, & Discussion] ScaryBugThing:
FYI, I confirm this set of files worked for me, BL unlock with no issues. (I didn't install TWRP because I want to receive at least the Nougat official update.)
[ZTE Axon 7 Guides, News, & Discussion] burnsy1:
At this risk of sounding stupid, can someone tell me what unlocking the bootloader allows me to do? I've loaded different roms in the past on my other phones... but I suppose I was blissfully unaware of the different software segments on the phone that were being impacted.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
Unlocking the bootloader allows you to run unsigned boot (kernel) and recovery. With how Android security works you need an unlocked bootloader to run any AOSP based ROM, custom kernel, or if the boot image needs to be touched by a mod (SuperSU, Magisk).
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
What's interesting on this device is twrp is installed and run while the bootloader is still locked. I do agree, for least headaches with root and full access to all partitions, unlocked bootloader is the way to go.
[ZTE Axon 7 Guides, News, & Discussion] burnsy1:
Thanks, so in short its required for root access? I'm going through the process now.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
There is a root solution for locked bootloader but AFAIK you are stuck on SuperSU 2.65 but you can use the latest SuperSU on an unlocked bootloader if you flash with the latest TWRP which also requires an unlocked bootloader.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
Then you are using the unofficial signed TWRP (3.0.2) I would unlock and flash the latest official TWRP (3.0.3) which is unsigned it has a few fixes in it ans will get updates, the signed TWRP AFAIK will not be updated.
[ZTE Axon 7 Guides, News, & Discussion] burnsy1:
I went through the guide successfully up until the part where you'd load TWRP. I thought I would not load twrp, and just flash supersu... I have tried three different supersu's 2.65, and the two listed in the guide, but both say signature verification failed. I'm just trying to flash from the zip, on my sd card. Am I doing something wrong?
[ZTE Axon 7 Guides, News, & Discussion] sm.bxsq:
Thanks - just unlocked the bootloader, installed twrp, and supersu successfully following the guide.
[ZTE Axon 7 Guides, News, & Discussion] gpz1100:
Good point about the distinction between the two. I already have 3.0.3-1 installed (bl unlocked, only way to mod :) )

For someone who doesn't want to unlock and wants root only, using the signed 3.0.2 will get the job done.
[ZTE Axon 7 Guides, News, & Discussion] lokissmile:
You need TWRP to flash SuperSU they will not flash through stock recovery.
[ZTE Axon 7 Guides, News, & Discussion] codahq:
Anybody?