[GUIDE] CWM & Root Lenovo Yoga 2 (8/10/13)

[jesusCris]

help me please

My yt2(10" android) official recovery is broken
I think it is because of the tip which is in this topic board concerning rooting
so I want a back up file.
could you help me!? Please

 

[bodivas]

My yt2(10" android) official recovery is broken

http://4pda.ru/forum/index.php?s=&showtopic=613102&view=findpost&p=37165721

 

[redhern]

BIOS is present here but you have to know where to put. And then the windows do not care so much - I want CMmod
Here the guide for ONDA V975i
I do not want to risk (I've already lost imei on my 830L) with these experiments

Thank you for the reply. I tried looking for the answer myself because you are so active on here helping others that I didn't want to waste your time. The link you gave is for the Windows BIOS update, not Android. On the Lenovo site I don't see any Android BIOS downloads, just the source code.

Is it possible to switch my BIOS to the Android BIOS to support dual booting Android and Windows? My tablet is the 1051 that originally came with Windows and I want to dual-boot both Windows and Android.

Many thanks!

---------- Post added at 11:21 AM ---------- Previous post was at 11:16 AM ----------

Have you tried flashing the bios yet or did you find any other ways to run windows on this tablet?

No, I cannot find the Android BIOS. My tablet is the 1051 that originally came with Windows. I'm trying to do the opposite of many of you I think. I did get Linux working on the tablet, but there are many drivers that I cannot find so it's not very useable, that's one reason why I want to get Android working on it.

 

[LyMougli]

need reboot yoga 2-830F

I've got a Yoga Tablet 2 830F on android, I am blocked with it because i'm in recovery menu. When I try to reboot, the tablet doesn't want. I think I have deleted system app which is needed. Does someone can help me ? I search everywhere a ZIP file to flash to get access again to thé tablet un utilisation (launcher...)
PS : Sorry for my bad English

 

[bodivas]

LyMougli
This is your stock firmware (if you try to flash system.img only - your information will not disappear)
https://cloud.mail.ru/public/f314f54f78d4/YT2-830F_USR_S067_141105_WW21_ROW.rar

 

[LyMougli]

Thanks but

Thanks, how do I flash it ? I'm not really experimented. I can access to droidboot and recoveryboot only

 

[bodivas]

Thanks, how do I flash it ? I'm not really experimented. I can access to droidboot and recoveryboot only

Look here (under spoiler) http://4pda.ru/forum/index.php?s=&showtopic=638030&view=findpost&p=35452702
And here:
http://forum.xda-developers.com/thinkpad-tablet/general/guide-root-yoga-tablet-2-pro-8-10-13-3-t2930428

 

[kajing]

Works w/ current firmware

Hi!

I just used this to root a 1050L with the latest firmware currently available - worked like a charm.
I'd like to add that the required USB driver for a Yoga Tablet can be had here http://support.lenovo.com/us/en/products/tablets/yoga-series?c=1 - simply download the Lenovo Smart Asistant and let it install the drivers, and only then do the whole rooting process.

Thank you!

 

[LyMougli]

impossible

The problem is that I can't flash system.img with flashtool or zip from a custom recovery... I can't access to internal storage because I can't open "android OS" and my computer doesn't recognize it, even with drivers... i'm really embarrassed

 

[4VGU53R]

The problem is that I can't flash system.img with flashtool or zip from a custom recovery... I can't access to internal storage because I can't open "android OS" and my computer doesn't recognize it, even with drivers... i'm really embarrassed

Could you be more specific ? what do you mean by you can't access your internal SD and can't open Android OS ?
You don't need to actually boot into the OS, but only the Recovery menu.
And as long as you install the right drivers, your PC should be able to recognize your device! what drivers have you installed and where did you get them ?

 

[LyMougli]

ReFlash the tablet

Could you be more specific ? what do you mean by you can't access your internal SD and can't open Android OS ?
You don't need to actually boot into the OS, but only the Recovery menu.
And as long as you install the right drivers, your PC should be able to recognize your device! what drivers have you installed and where did you get them ?

I can access to recovery menu from lenovo and install a custom recovery. The drivers are the good ones, but I thnik this is because I'm on windows XP... so I recognize my tablet with "SnapPea" on computer. When I try a normal boot, I'm blocked at Lenovo bootimage about 10seconds and it reboots again and again. I just would like to flash the tablet with or without root, just to be able to use it back.
PS : Thank you for the attention and the time you take to answer to my problem

 

[4VGU53R]

I can access to recovery menu from lenovo and install a custom recovery. The drivers are the good ones, but I think this is because I'm on windows XP... so I recognize my tablet with "SnapPea" on computer. When I try a normal boot, I'm blocked at Lenovo bootimage about 10seconds and it reboots again and again. I just would like to flash the tablet with or without root, just to be able to use it back.
PS : Thank you for the attention and the time you take to answer to my problem

What version of XP are you using ? 32 bit or 64 bit ?
In the documentation, it says that Intel Phone Flash Tool supports Windows XP 32 bit.
Also Lenovo Smart Assistant Driver supports Windows XP both 32 & 64 bit.
I am not using XP at the moment, but i fail to see why you would need an app such as SnapPea here!
Are you sure you've installed the right drivers ? what does it say when you connect the tablet to your PC ? and how does it recognize it in your Windows Device Manager ?

 

[LyMougli]

What version of XP are you using ? 32 bit or 64 bit ?
In the documentation, it says that Intel Phone Flash Tool supports Windows XP 32 bit.
Also Lenovo Smart Assistant Driver supports Windows XP both 32 & 64 bit.
I am not using XP at the moment, but i fail to see why you would need an app such as SnapPea here!
Are you sure you've installed the right drivers ? what does it say when you connect the tablet to your PC ? and how does it recognize it in your Windows Device Manager ?

it's 32bits. PhoneFlashTool works, it recognize my tablet when it's on droidboot, but snappea and windows don't recognize it as a mass storage or multimedia. I tryed to flash the zip files someone gave me up in this thread, but it doesn't work with system.img and fastboot.img (look at the picture).

 

[4VGU53R]

it's 32bits. PhoneFlashTool works, it recognize my tablet when it's on droidboot, but snappea and windows don't recognize it as a mass storage or multimedia. I tryed to flash the zip files someone gave me up in this thread, but it doesn't work with system.img and fastboot.img (look at the picture).

So i assume that you have installed all Intel drivers which come with Phone Flash Tool.
As i wrote earlier, i don't use XP, however when comparing to my setting, I noticed something different in the picture you posted; where it says Browse flash file, your path looks like this :
D:/documents/Tele..../YT2-830F_USR_S067_141105_WW21_ROW/target_bin.zip !

I checked it on two different laptops, and it doesn't show any ".zip" suffix. - it look like this:
C:/(your folder name which doesn't matter that much)/YT2-830F_USR_S067_141105_WW21_ROW/target_bin/flash.xml

Just to be sure, move the firmware files (all of them) in a different folder, such as your desktop.
Also, did you try to change "Force sparsing" from the default 100MB, to 500Mb in Phone Flash Tool options ? if you didn't, do it now and then try to flash the firmware, one more time.

BTW, Windows does not recognize this tablet as a "Mass Storage Device, no matter which version you use (XP , Vista, 7). it shows it as a "Portable Media player" device, without any drive letters.
However, you should be able to access your files on the internal/external SD without any problems.

 

[LyMougli]

So i assume that you have installed all Intel drivers which come with Phone Flash Tool.
As i wrote earlier, i don't use XP, however when comparing to my setting, I noticed something different in the picture you posted; where it says Browse flash file, your path looks like this :
D:/documents/Tele..../YT2-830F_USR_S067_141105_WW21_ROW/target_bin.zip !

I checked it on two different laptops, and it doesn't show any ".zip" suffix. - it look like this:
C:/(your folder name which doesn't matter that much)/YT2-830F_USR_S067_141105_WW21_ROW/target_bin/flash.xml

Just to be sure, move the firmware files (all of them) in a different folder, such as your desktop.
Also, did you try to change "Force sparsing" from the default 100MB, to 500Mb in Phone Flash Tool options ? if you didn't, do it now and then try to flash the firmware, one more time.

BTW, Windows does not recognize this tablet as a "Mass Storage Device, no matter which version you use (XP , Vista, 7). it shows it as a "Portable Media player" device, without any drive letters.
However, you should be able to access your files on the internal/external SD without any problems.

I did all of these things but always the problem with system.img flash...

 

[LyMougli]

So i assume that you have installed all Intel drivers which come with Phone Flash Tool.
As i wrote earlier, i don't use XP, however when comparing to my setting, I noticed something different in the picture you posted; where it says Browse flash file, your path looks like this :
D:/documents/Tele..../YT2-830F_USR_S067_141105_WW21_ROW/target_bin.zip !
.

Moreover, if flashing android back doesn't work, is it possible to flash on windows ? Because I know there are some version of the yoga tab 2 with windows

 

[social-design-concepts]

I did all of these things but always the problem with system.img flash...

i can't really make out your error but if system.img is failing because the size is to large , if it's a raw ext4 system image ( not a android sparse ext4 ) use 7zip to compress it into a system.img.gz , unless specifically removed by the oem droidboots native flash utility supports flashing .gz compressed images . . .

 

[LyMougli]

i can't really make out your error but if system.img is failing because the size is to large , if it's a raw ext4 system image ( not a android sparse ext4 ) use 7zip to compress it into a system.img.gz , unless specifically removed by the oem droidboots native flash utility supports flashing .gz compressed images . . .

it doesn't work to. Same problem at the same moment of flash... If someone knows how I could see my tablet operating again, I would be very happy, even with a custom rom or other

 

[social-design-concepts]

it doesn't work to. Same problem at the same moment of flash... If someone knows how I could see my tablet operating again, I would be very happy, even with a custom rom or other

what happens when you flash it manually from the command line?

 

[vampirefo]

it doesn't work to. Same problem at the same moment of flash... If someone knows how I could see my tablet operating again, I would be very happy, even with a custom rom or other

If fastboot won't flash the system.img dump it into a rom and flash via my recovery.

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