Root [YB1--X90L] how to

[Shrykull]

I have everything downloaded but when I unlock OEM in the developers optionsr it doesn't do a factory reset it just says security features are disabled. I am able to see the device in adb but once I use adb to get into the bootloader it stops detecting the device for some reason. I have all the downloads the twrp and backups done but I can't seem to get the command to unlock the fastboot to work for some reason as once I get to the boot loader the device seems to disconnect from adb. Any idea why this is happening? I can still use adb to reboot the device and get into the bootloader but once in the bootloader adb no longer detects the device.


EDIT: Just successfuly unlocked bootloader I was typing the command incorrectly and in the wrong spot. Should hopefully be smooth saling from here thank you!

 

[Shrykull]

Rooted now how to get twrp without pc plug and adb?

I have successfully rooted the device but now isnt there a way to boot into twrp without plugging into a pc and using adb since it is rooted? How would I manage this?

 

[danjac]

Rooted now how to get twrp without pc plug and adb?
I have successfully rooted the device but now isnt there a way to boot into twrp without plugging into a pc and using adb since it is rooted? How would I manage this?

Glad that I could help you.
Well, it's quite easy to flash it. I just don't recommend it. I just adapted twrp from another, very similar, lenovo tablet and didn't build it from source.
By now I assume it is save to use, but no guarantee. I like the idea of having the original recovery, just in case.
By the way, you also need stock recovery to install ota updates..

But nevertheless, here's how you can install it;
1. Navigate to you directory containing twrp and open a command window
2. Boot into bootloader

adb reboot bootloader

3. in Bootloader mode type

fastboot flash recovery_twrp.img

DONE - now you have twrp as recovery and replaced the original one.
Btw, it would be kind if you consider to hit the thanks button. Cheers.

 

[Shrykull]

Glad that I could help you.
Well, it's quite easy to flash it. I just don't recommend it. I just adapted twrp from another, very similar, lenovo tablet and didn't build it from source.
By now I assume it is save to use, but no guarantee. I like the idea of having the original recovery, just in case.
By the way, you also need stock recovery to install ota updates..

But nevertheless, here's how you can install it;
1. Navigate to you directory containing twrp and open a command window
2. Boot into bootloader

adb reboot bootloader

3. in Bootloader mode type

fastboot flash recovery_twrp.img

DONE - now you have twrp as recovery and replaced the original one.
Btw, it would be kind if you consider to hit the thanks button. Cheers.

Definitely thank you very much! Also do you know if it is possible to install and play Windows/steam games on Windows 10 on the lenovo if I had Bluetooth controller/mouse?

 

[danjac]

Definitely thank you very much! Also do you know if it is possible to install and play Windows/steam games on Windows 10 on the lenovo if I had Bluetooth controller/mouse?

windows is not possible, at least not at the moment.
for steam you might try the crossover app.
for more details see here

 

[Shrykull]

How to transfer to new micro SD?

I have a 64gb micro SD in my LYB 1 and I want to set up a new 128gb sd card how can I transfer all the content and apps to the new sd card?
Also just wondering can I have multiple internal Micro SD cards and just switch them out? Thank you for all the help!

 

[ox_eye]

Did somebody try root with Android 7.1.1? I tried with Magisk 14.0, but after install I got "Touch Pal closed" message everytime.

 

[MarkAllen]

I did and got the same as well with TouchPal. Though I had gotten that on M too. I turned it off in Keyboard settings. Everything appears to be working fine.

 

[kodiak99]

Same Problem

I have everything downloaded but when I unlock OEM in the developers optionsr it doesn't do a factory reset it just says security features are disabled. I am able to see the device in adb but once I use adb to get into the bootloader it stops detecting the device for some reason. I have all the downloads the twrp and backups done but I can't seem to get the command to unlock the fastboot to work for some reason as once I get to the boot loader the device seems to disconnect from adb. Any idea why this is happening? I can still use adb to reboot the device and get into the bootloader but once in the bootloader adb no longer detects the device.


EDIT: Just successfuly unlocked bootloader I was typing the command incorrectly and in the wrong spot. Should hopefully be smooth saling from here thank you!

I am having this same problem. how did you get past this?

 

[MarkAllen]

I am having this same problem. how did you get past this?

Do you mean the issue where the device seems to disappear from your connected devices once you go into fastboot mode?

Two different drivers are needed, one for ADB (ADB Interface) and one for Bootloader (Android Bootloader Interface). Those drivers are included with Minimal ADB and Fastboot from here

 

[luneth27]

I rooted and everything seemed stable, so I installed SuperSU. SuperSU gave me an error "binaries occupied" and an answer on some forum said to select "clean up for reinstall from google play". I also turned off the "unlock bootloader" setting in dev options. I selected "clean up for reinstall from google play" and it said to reboot, which I did, and now it's stuck on the Lenovo splash screen. What can I do?

I'm able to boot into twrp, so I decided to try to factory reset. I did it, and I am still stuck at the lenovo spash with the boot song.

I thought if I locked the bootloader, it'd boot so I did that. At first I got bootloader error 01 then error 06. Did I **** myself?

 

[danjac]

I rooted and everything seemed stable, so I installed SuperSU. SuperSU gave me an error "binaries occupied" and an answer on some forum said to select "clean up for reinstall from google play". I also turned off the "unlock bootloader" setting in dev options. I selected "clean up for reinstall from google play" and it said to reboot, which I did, and now it's stuck on the Lenovo splash screen. What can I do?

I'm able to boot into twrp, so I decided to try to factory reset. I did it, and I am still stuck at the lenovo spash with the boot song.

I thought if I locked the bootloader, it'd boot so I did that. At first I got bootloader error 01 then error 06. Did I **** myself?

i think you just activted the factory reset protection by disabling 'oem unlock'. so your factory reset fails. i also think your bootloader is still unlocked.
so you should be able to flash a 'original' stock firmware.
search the yoga book threads for files (e.g. from easy firmware) and instructions (i don't know where exactly it is located, but it seems a lot of people messed up their devices and flashed a stock image, so there should be plenty of information about it)

good luck

edit1: are you still able to boot twrp? - if yes, try to restore a backup, in case you have one.
edit2: this post might help to get more information on flashing the yoga book firmware:
https://forum.xda-developers.com/showpost.php?p=72152457&postcount=3

 

[luneth27]

i think you just activted the factory reset protection by disabling 'oem unlock'. so your factory reset fails. i also think your bootloader is still unlocked.
so you should be able to flash a 'original' stock firmware.
search the yoga book threads for files (e.g. from easy firmware) and instructions (i don't know where exactly it is located, but it seems a lot of people messed up their devices and flashed a stock image, so there should be plenty of information about it)

good luck

edit1: are you still able to boot twrp? - if yes, try to restore a backup, in case you have one.
edit2: this post might help to get more information on flashing the yoga book firmware:
https://forum.xda-developers.com/showpost.php?p=72152457&postcount=3

As for twrp, I don't have a backup. It's my first time around destroying my device so I had just backed up with adb with the android IDE. Unfortunately I guess I corrupted it when I accidentally quit the program whilst my book was restoring my apps n' whatnot. I'm following the 2nd edits' post now. Likewise, thanks for finding me a guide to follow, it's very appreciated.

 

[hajkan]

Hi

Does the current rooting method works for the Nougat Update?

 

[danjac]

Hi

Does the current rooting method works for the Nougat Update?

yes, it does. use latest magic files.

 

[hajkan]

Thanks man.

yes, it does. use latest magic files.

 

[Adilost]

6.2 then, on your pc, type the following commands:

adb reboot bootloader

--> it will boot your tablet in bootloader mode --> screen with robot

I cant get pass this step. Whenever i enter adb reboot bootloader it says waiting for device for ages..

 

[danjac]

I cant get pass this step. Whenever i enter adb reboot bootloader it says waiting for device for ages..

Wrong adb/fastboot driver
Search the thread, to find the right one.

 

[H4N5]

which superSU version do you guys use for the nougat update?

 

[pegasoc]

Ciao,
ho seguito la procedura descritta nel primo post usando Magisk-v16.0.zip ed è andato tutto bene. Grazie per la guida e l'aiuto.
L'unica cosa che mi servirebbe è sapere come eliminare l'avviso del touchpal.
Ancora grazie.

Hi,
I have followed the procedure described in the first post using Magisk-v16.0.zip and you/he/she has been all right everything. Thanks for the guide and the help.
The only thing that would serve me is to know whether to eliminate the notice of the touchpal.
Still thanks.