Database Users

Noobs guide to root MZ604 GED 4.1.2

Ok so I am in the process of doing this myself. I'm kind of doing this off my own back as I cannot get the AIO tools etc. to work, but there is a nice way of gaining root on 4.1.2. This is on a UK bought Xoom, but it is a MZ604 that has been added to the Google Experience Device program.
Disclaimer: This should be obvious by now in these threads, but I, nor anyone else who's work is involved in this are NOT responsible for anything that happens to your Xoom. By following this guide you are accepting this as fact. All that being said, good luck!
So, assuming you have an unlocked bootloader and with your xoom connected to a PC running Windows do the following:
1) Download the root zip attached (thanks to matt4321 for sharing solarnz zip in the original thread: http://forum.xda-developers.com/showthread.php?t=1965330 )
2) Download the latest version with install scripts from here and extract the windows file to your desktop: http://forum.xda-developers.com/showthread.php?t=1782235 (I'm assuming you can use any recovery image with the installer, however with this at least its all in one and ready to go. I used 2.3.2.3)
3) Put the "Xoom-Universal-Root_modded_4_JB.zip" onto the external SD Card (MAKE SURE IT IS A .ZIP, do NOT extract)
4) Run the RUNME file inside the windows folder on your desktop
5) Use option 2 to boot into fastboot
6) Once fastboot is loaded use option 1 in the prompt
7) This will then install the recovery.
8) Power + volume up to reboot
9) Do not let the device boot into android, it will get rid of the new recovery menu, hold power (on the Motorola dual core splash) and get the device to turn off before android starts loading.
10) Once the Xoom is off, start it again, pressing the volume down key rapidly until you see some options at the top, select recovery, press volume up.
11) Welcome to your new recovery! So, we need to install the root update. So select install zip.
12) Choose the root zip, go through the options and install it.
13) Reboot your device
14) Check for SuperSU
Congratulations, you should now have root on your 4.1.2 GED'ed Xoom MZ604.
Hope this helps someone, as I've been stuck doing this for a few hours now and just figured it out by reading countless threads about this.

Worked for me after I sorted out the Motorola drivers on my PC so that the adb driver worked properly.
Good work
Sent from my Xoom using Tapatalk 2

How do i know what the model number is? I just checked and it just said xoom this is the few threads i saw where they said it worked
Sent from my T1 using xda app-developers app

us mz604
Will this work on a us mz604

If you plan to flash custom rom there is no need to root your xoom
Just unlock bootloader
Flash cwm or twrp
Flash your favorite rom
Tada you will have awesome rooted xoom

Thank you, that is a nice and easy guide.

nevermind, found it.

Update fails - want to flash custom rom - need some advice

Now here's the situation:
I'm still on an older ROM version (4.2.1 - see attachment)
A while ago my tablet told me there was an update. I wanted to get it, it downloads but it always fail to apply the update.
What I've done to the device so far is that I've used motochopper to root the device and got rid of some ASUS apps.
So since it refuses to update, I've decided to unlock it, flash a custom recovery and get myself a custom rom.
But I've read a lot about people bricking their devices and I doubt it'll be as easy as it was on Nexus 4 and Nexus 7 - so I need some advice on how exactly to do it.
Recently I found the thread that enables us some sort of nvflash although being on JellyBean. They were talking about a specific version of bootloader and I'm not certain if I have this bootloader since I'm on an older JellyBean version. Of course I would like to use this bricksafe as well - just in case
Can someone lead me to a guide or instruct me how to do it? I don't want to brick this device
Thx in advance

l33ch0r said:
Now here's the situation:
I'm still on an older ROM version (4.2.1 - see attachment)
A while ago my tablet told me there was an update. I wanted to get it, it downloads but it always fail to apply the update.
What I've done to the device so far is that I've used motochopper to root the device and got rid of some ASUS apps.
So since it refuses to update, I've decided to unlock it, flash a custom recovery and get myself a custom rom.
But I've read a lot about people bricking their devices and I doubt it'll be as easy as it was on Nexus 4 and Nexus 7 - so I need some advice on how exactly to do it.
Recently I found the thread that enables us some sort of nvflash although being on JellyBean. They were talking about a specific version of bootloader and I'm not certain if I have this bootloader since I'm on an older JellyBean version. Of course I would like to use this bricksafe as well - just in case
Can someone lead me to a guide or instruct me how to do it? I don't want to brick this device
Thx in advance
Click to expand...
Click to collapse
This THREAD has all the info you need to do NVFlash. It's based on 10.6.1.15 something bootloader which I believe is the same as the latest Asus official. If you're on 4.2 rom, you can flash the flatline img. and generate the necessary files from there. Once that done, you can use either the provided CWM or the latest 4.2 TWRP to flash any compatible custom rom (4.3). Have fun.

graphdarnell said:
This THREAD has all the info you need to do NVFlash. It's based on 10.6.1.15 something bootloader which I believe is the same as the latest Asus official. If you're on 4.2 rom, you can flash the flatline img. and generate the necessary files from there. Once that done, you can use either the provided CWM or the latest 4.2 TWRP to flash any compatible custom rom (4.3). Have fun.
Click to expand...
Click to collapse
First of: thanks for your reply
Guide says something about bootloader 10.6.1.15.3 - I still have an even older one (10.6.1.8...) - will it still work?

l33ch0r said:
First of: thanks for your reply
Guide says something about bootloader 10.6.1.15.3 - I still have an even older one (10.6.1.8...) - will it still work?
Click to expand...
Click to collapse
Yes, that version will work because it is on the 4.2 bootloader.
Sent from my TF300T using xda app-developers app

Only works on unlocked device?
Ok I'll try like this
These are the steps I would do: (I pray someone to look over these steps and correct me if I'm wrong )
1.) Go to asus site and download unlock_v8 and run it so to unlock my tablet.
2.) I go to androidroot.mobi and download flatline_tf300.img and nvflash-tools-win32.zip (win32? Hope that does not stand for 32-bit and hope it will work on 64-bit)
3.) I reboot my device into Fastboot (don't know exactly what that means "Please note that for transformer tablets the fastboot command might require the option "-i 0x0b05"" - at this stage the device is already connected to the pc and just in case it's not in fastboot I should run this command?)
4.) I use cmd.exe to type in these commands. In which directory? In the directory where I unzip the files from nvflash-tools-win32.zip? The guide is not too specific on that.
5.) I type in "$ fastboot flash recovery flatline_device.img" (I know for device I use tf300) which will flash the recovery.
6.) I reboot my device (let android boot?) and reboot again into recovery. (power + vol down?)
7.) I select "Advanced - Wheelie" and Step 1: Flash AndroidRoot BL and find myself with a custom bootloader.
8.) It says the device will power off. Automatically? However, I boot into android and after that reboot again into recovery mode.
9.) I choose Step 2 which will generate wheelie blobs
10.) I follow the on screen prompt to retrieve my blobs (anyone has a screenshot of that? Or is it self-expalantory?)
All this time the device is connected to pc via usb?
11.) Now I reboot my tablet into APX mode - after Step 10: am I still in recovery or booted to Android?
12.) If my tablet is recognized I type "$ wheelie --blob blob.bin" into cmd
13.) Then I will type in the commands to obtain the backups
Still got a few questions though. The device is connected to PC throughout this whole procedure, right? Where to start cmd (do I have to put the files from nvflash-tools into a specific folder from where I start cmd.exe?)
And after this procedure is done do I need to flash anything else? Or will I be then equipped with a working recovery that allows me to flash custom roms?
Thanks in advance for anyone who's taking time to answer my maybe uninformed questions but I'm kind of having troubles following the guide

[Q] How to root Lenovo TAB A7-40 A3500-FL? [Solved] [GUIDE]

How to root Lenovo TAB A7-40 A3500-FL?
[Solved] See the guide below!
Device info:
Model number: Lenovo A3500-FL
Android version: 4.4.2
Kernel version: 3.4.67
Build number: A3500FL_A442_01_25_140823_SE
BB Chip: MT6582
MS Board. A3500FL
Bar code: this was my device's serial number
SW Ver.: ALPS.KK1.MP1.V2.10
Custom Build Verno.: 1408775889
Managed to get cwm and root with this guide: http://forum.xda-developers.com/and...vo-a3500-h-t2879208/post55491817#post55491817
Modified the guide for Lenovo A3500-FL!
EDIT: Also some users have reported that this guide doesn't do the trick or is out-dated, so copypasted the guide from this post here.
Guide
1. Download attachment cwmRecovery.zip and download latest Flash_tool (version 5.1352.0) can be downloaded from here)
1.1. Enable USB-debugging. (How to do this)
2. Manually install the drivers from the attachment a7_40_drivers.zip for the LenovoTablet before plugin it to computer (win7 dirvers work for win8 too).
2.1. To install unsigned/uncertified drivers on Windows 7: http://en.kioskea.net/faq/3914-windows-7-how-to-install-unsigned-drivers
2.2. To install unsigned/uncertified drivers on Windows 8: http://www.howtogeek.com/167723/how...8.1-so-that-you-can-install-unsigned-drivers/
2.3. After you have disabled the driver signature verification, you can install the drivers like this: Right click My computer, Manage, Device Manager, right click your computer at the top, Add Legacy hardware, next, Install plapla manually, next, Show all Devices, Have a Disk.., Browse to the driver folder where you unzip them, choose example windows7 and the 64 version (win7 drivers work for win8.x too), install every device. Then follow the guide.
(Note: Otherwise Windows only installs the normal automatic drivers and its more difficult to install the other drivers.)
2.4. Plug your device to PC.
3. Download the latest supersu zip file (version 2.46) from attachments or from https://download.chainfire.eu/696/SuperSU/
3.1. Move the zip.-file to the Sdcard.
4. Turn off your device.
5. Unpack cwmRecovery.zip
6. Run Flash_tool.exe with Admin Rights.
7. Chose Scatter-Loading and choose MT6582_Android_scatter.txt (in Recovery folder).
7.1. Now you will see checekd only one checkbox - recovery, if not click on it and choose recovery.img
7.2. Press Download.
7.3. Connect your device.
7.4. Wait few seconds.
8. Have CWM on your device .
9. Unplug your device.
10. . Boot to cmw recovery by turning off your device. Then press and hold VOL DOWN + VOL UP and then also press and hold POWER for about 7 seconds.
10.1. Choose " Install zip from sdcard." (To confrim always use the Power Button)
10.2. Choose "zip from sdcard".
10.3. Select SuperSU-v2.46.zip from sdcard and apply.
10.4. Have a rooted tablet.
It might be necessary to always flash the CWM with the Flashtool directly before you startup the device. Otherwise it will start the original AndroidRecovery again.
It might also be necessary to use different drivers from here.
If the supersu zip doesn't install, try toggling the signature verification to disabled from cwm->install zip from sdcard->toggle signature verification.
Tested and working on Levono A7-40 3500-FL with kitkat update, build number A3500FL_A442_01_25_140823_SE, from ota. Attached screenshot for proof. Also other people have reported that this works for later updates too, for example A3500FL_A442_01_27_141127_SE.
You can update to the latest OTA firmware by first going back to stock recovery. See the second post for the guide.
Thanks and credits go to: @Koli96 and @bobais

How to go back to stock rom/recovery and update to latest Lenovo OTA firmware update
So, it's pretty simple, you take the stock_recovery.zip from the first post, extract it, and replace recovery.img in the recovery folder with the stock one.
Then :
Quote:
4. Turn off your device.
6. Run Flash_tool.exe with Admin Rights
7. Chose Scatter-Loading and choose MT6582_Android_scatter.txt (in Recovery folder)
7.1. Now you will see checekd only one checkbox - recovery, if not click on it and choose recovery.img
7.2.. Press Download
7.3. Connect your device
7.4. Wait few seconds.
And that's it !
On a side note, if it seems stuck on a black screen with a loading circle after factory reset, you have to put the tablet in landscape mode and restart (the shutdown menu appears without any problem) - this issue doesn't seem related to recovery, but a bug within lenovo firmware and the first configuration screen.
Side note 2: The first boot after flashing new update might take 15mins.
Side note 3: After updating to the latest OTA you can go back to cwm recovery with the guide from the first post.
Credits @tenuis

I got the same tablet and I also am looking for a root. :/

Another waiting for rooting lenovo owner.
Same here, i was looking for a root guide and i couldn't find anything.
Does anyone else has a problem with long charging times?

Well it charges long and the charge stays long, so no issue here.
Seems that not that many lenovos root easily, but of course this is a pretty new device(?).

leripe said:
Well it charges long and the charge stays long, so no issue here.
Seems that not that many lenovos root easily, but of course this is a pretty new device(?).
Click to expand...
Click to collapse
OK let's try this
Install mtk drivers
Install USB and adb drivers
Install v root 1.7.8
Now tick adb debugging and connect your device to PC run v root and click root button after device get connected to v root
Let me know if you have any issues
All the best ?
Sent from my x604 using Tapatalk

The-Immortal said:
OK let's try this
Install mtk drivers
Install USB and adb drivers
Install v root 1.7.8
Now tick adb debugging and connect your device to PC run v root and click root button after device get connected to v root
Let me know if you have any issues
All the best ?
Sent from my x604 using Tapatalk
Click to expand...
Click to collapse
Can you link all the drivers?
Edit: Vroot link here: http://vrootdownload.info/vroot1.7.8/

leripe said:
Can you link all the drivers?
Edit: Vroot link here: http://vrootdownload.info/vroot1.7.8/
Click to expand...
Click to collapse
If you have win7 or win8/8.1 USB drivers will automatically installed when you connect device
Adb driver I hope this will work
http://adbdriver.com/downloads/
If it fails make a google search am sure you will find it
Sent from my x604 using Tapatalk

The-Immortal said:
If you have win7 or win8/8.1 USB drivers will automatically installed when you connect device
Adb driver I hope this will work
http://adbdriver.com/downloads/
If it fails make a google search am sure you will find it
Sent from my x604 using Tapatalk
Click to expand...
Click to collapse
Installed everything and tried vroot once again (I have tried it before).
Still not rooted. And btw that vroot at least tries to install bunch of bloatware crap on the pc.
Edit:
I would suggest for anyone who installed Vroot to your pc to scan the whole pc after you uninstall the vroot.
Here are the scanning tools:
Malwarebytes
adwcleaner
superantispyware
hitmanpro

leripe said:
Installed everything and tried vroot once again (I have tried it before).
Still not rooted. And btw that vroot at least tries to install bunch of bloatware crap on the pc.
Edit:
I would suggest for anyone who installed Vroot to your pc to scan the whole pc after you uninstall the vroot.
Here are the scanning tools:
Malwarebytes
adwcleaner
superantispyware
hitmanpro
Click to expand...
Click to collapse
I got a successful root by flashing Recovery.rar from lenovo-forums.ru, (it's easy to google, I'm not allowed to post links) with the included SPFlash Tool and afterwards flashing the needed SU binaryies and apk. However, this will mess up the OTA updates, and I can't find the stock recovery again.
Therefore, I really beg anyone having the stock recovery to post it, enabling us to switch between them, whenever we want to apply any OTAs.
Thanks a lot!

nkr said:
I got a successful root by flashing Recovery.rar from lenovo-forums.ru, (it's easy to google, I'm not allowed to post links) with the included SPFlash Tool and afterwards flashing the needed SU binaryies and apk. However, this will mess up the OTA updates, and I can't find the stock recovery again.
Therefore, I really beg anyone having the stock recovery to post it, enabling us to switch between them, whenever we want to apply any OTAs.
Thanks a lot!
Click to expand...
Click to collapse
Well I very highly doubt that there will be any more updates for a device with this price range. And since the next android version is the L version, which requires more work than before.
Edit2: http://forum.xda-developers.com/android/development/guide-lenovo-a3500-h-t2879208 found this. Tested and it works. Will edit it to the first post.

The same as me
i cant flash update.zip from cwm recovery and need to restore the stock recovery ...
I think flashing the stock rom can solve the problem..
.by using the sp flash tool we can select to flash recovery only ....unticking the others except recovery.img ....you just try to download the stock rom and flash the recovery

Same problem
Heya guys!
I have the same problem here.. I can't run the .zip file from the SD card, it get interrupted every time. Any ideas?
drabuaiad said:
The same as me
i cant flash update.zip from cwm recovery and need to restore the stock recovery ...
I think flashing the stock rom can solve the problem..
.by using the sp flash tool we can select to flash recovery only ....unticking the others except recovery.img ....you just try to download the stock rom and flash the recovery
Click to expand...
Click to collapse

I dont know what you two are trying to do but this thread is about rooting the lenovo A3500-FL not about lenovo stock rom.

Rooting..
Yes indeed, that's what I'm trying to do. Rooting the A3500-FL. According to the instructions you need to install the SuperSU from a zip on your SD card. When I try do that it gets interrupted every time. Installing recovery went well. So I'm not getting what I do wrong? Any ideas?
leripe said:
I dont know what you two are trying to do but this thread is about rooting the lenovo A3500-FL not about lenovo stock rom.
Click to expand...
Click to collapse

Mrosenho said:
Yes indeed, that's what I'm trying to do. Rooting the A3500-FL. According to the instructions you need to install the SuperSU from a zip on your SD card. When I try do that it gets interrupted every time. Installing recovery went well. So I'm not getting what I do wrong? Any ideas?
Click to expand...
Click to collapse
http://download.chainfire.eu/452/SuperSU/UPDATE-SuperSU-v2.02.zip and y ou mean this when you talk about update.zip?
And I hope you are using the install zip from sdcard option and the choose zip from sdcard option?
Boot to cmw.
Install zip from sdcard.
Choose zip from sdcard.
browse to your supersu zip and apply.
Now I also update the first post's guide, so you can check that out too.

Thanks for the help so far. But now I'm starting to doubt that the CWM install went successfully. Let me show you a picture of my screen after a failed install of the UPDATE-SuperSU-v2.02.zip -file. (ht_tps://ww_w.dropb_ox.com/s/1wrnatzjk2gn42h/2014-10-09%2008.50.40.png?dl=0) (slightly modified link because of forum rules, just take out the _) I'm using the "apply update from sdcard" option, then I browse to the SuperSU.zip -file and apply it. Then it starts installation, but aborts it in a few seconds. So am I booting to just a normal recovery mode and not CWM? (Sorry if all this seems totally ignorant, I have only flashed roms before, never rooted a new device)
leripe said:
UPDATE-SuperSU-v2.02.zip and you mean this when you talk about update.zip?
And I hope you are using the install zip from sdcard option and the choose zip from sdcard option?
Boot to cmw.
Install zip from sdcard.
Choose zip from sdcard.
browse to your supersu zip and apply.
Now I also update the first post's guide, so you can check that out too.
Click to expand...
Click to collapse

Yup.. This is the problem. The recovery runs fine from Flash Tool and claims it installs it. (Download ok) But I still don't seem to have CWM on the device. It's just normal recovery mode. So any ideas about the CWM-installation? What could possibly go wrong? I get no error messages. Cheers.
//Mike
Mrosenho said:
Thanks for the help so far. But now I'm starting to doubt that the CWM install went successfully. Let me show you a picture of my screen after a failed install of the UPDATE-SuperSU-v2.02.zip -file. (ht_tps://ww_w.dropb_ox.com/s/1wrnatzjk2gn42h/2014-10-09%2008.50.40.png?dl=0) (slightly modified link because of forum rules, just take out the _) I'm using the "apply update from sdcard" option, then I browse to the SuperSU.zip -file and apply it. Then it starts installation, but aborts it in a few seconds. So am I booting to just a normal recovery mode and not CWM? (Sorry if all this seems totally ignorant, I have only flashed roms before, never rooted a new device)
Click to expand...
Click to collapse

thanks ...
It is work fine for me on a3500 fl with 4.4.2 ver a442_01_26_140911_se

Mrosenho said:
Yup.. This is the problem. The recovery runs fine from Flash Tool and claims it installs it. (Download ok) But I still don't seem to have CWM on the device. It's just normal recovery mode. So any ideas about the CWM-installation? What could possibly go wrong? I get no error messages. Cheers.
//Mike
Click to expand...
Click to collapse
Same for me, what about this @leripe ?
EDIT// Oh, It's working now, tried to flash it one more time, then I held a power button until Lenovo logo appeared and then I pressed Vol UP and Vol DOWN and the CWM came in, thank you! Now my tablet is finally rooted

Guide to Flash CM12.1 in ZF2 for newbies

Guys don't use this guide for now, don't use official unlocking method for now..
TO flash the CM12.1 in your Zf2 you must unlock the bootloader [WARNING: it will void the warranty]
I'm not responsible for bricked phone,try on your own risk
and official ASUS warning for unlocking bootloader ,its long so read it by clicking show content
Before you download, install, and use the Unlock Device App you acknowledge and assume complete risk to the quality and performance of this App, including but not limited to the following: once you activate the App you will not be able to recover your ASUS product (“Original Product”) back to original locked conditions; the Original Product with the activated App will not be deemed the Original Product; the Revised Product will no longer be covered under the warranty of the Original Product; the software of Revised Product will no longer be deemed the software of the Original Product and can no longer receive ASUS software updates; your purchased digital content may also be affected.
You also acknowledge ASUS does not guarantee service satisfaction to any Revised Product, including events involving paid service requested by you to be performed to the Revised Product.
Furthermore, such repaired Revised Product will not be covered under the warranty of the Original Product; the software of the repaired Revised Product will not be deemed the software of the Original Product and will not receive ASUS software updates.
It is strongly advised that you avoid activating this App unless you fully understand and accept the risks that may arise.​
What this guide giving steps for:[just more like summary]
Files Needed and Required before Steps: - Just basic drivers to activate adb,fastboot system wide
Steps For Flashing CM12.1 : - unlocking bootloader, flashing twrp recovery and then flashing CM12.1,gapps and supersu.zip
Files Needed and Required before Steps:
Drivers for Asus Zenfone 2 installed on PC from here [mostly it will auto installed]
ADB installed on your PC (https://drive.google.com/file/d/0B0MKgCbUM0itVVFWRC02Q0VBQnc/view?pli=1),download and install this
And some more,which will be mentioned below
Steps For Flashing CM12.1 :
unlock bootloader instructions:
Update your software image to V2.20.40.59 or latest version
download app for ZE551ML[all 2gb,4gb] here and for ZE550Ml here
install, and use the Unlock Device App downloaded from above step
Download untethered twrp from here (zooa is for all ze551ml,z008 is for ze550ml),
if the .img you just downloaded doesnt have name as twrp.img [it may have version along it] then please rename that to twrp.img[remove those versions] and turn off ur phone, plug the usb cable in ur phone port,hold the VOL UP[no need to press the power] and connect the other end of cable to PC port,wait for few seconds till the green Android robot appears. You should see a blue line below saying "Waiting Fastboot command or Continue the fastboot process"
select the folder where you are having the twrp.img by pressing Shift + Right Click.. Then select "Open command here"...[in case you are wondering where and how see pics here or here]
Copy and paste the following command in the command prompt window
Code:
fastboot flash recovery twrp.img
after it finish the flashing[it will take less than 10sec only],u can unplug the phone, boot the phone.
download CM12.1 latest version or nightly from here [NOTE:see the date of the build to know the latest version]
get the gapps from here
get the supersu.zip from here
after downloading all zips,..place all in your micro SDCARD
now power off, Once it is off, hold down the volume up button and hold on to the power button until the phone vibrates. After the vibration stops, release the power button and continue pressing the volume up button until the green Android robot appears. You should see a blue line below saying "Waiting Fastboot command" ,Now here click vol down till you see Recovery mode in top big rectangle box,click power button
it will enter twrp,first take the backup of ur current OS[tick everything], choose sdcard for backup,so u can restore if u want to use stock at some point[even the apps will be there,but if you kept the obb,data in internal,it will be wiped,so better copy android folder to pc]
now click wipe,click advanced wipe,select everything except the microsd [be careful],if u want to keep the internal files,then untick internal storage also
Click the install,choose externalSD, search for those zip,and install CM.zip ,then install Gapps.zip,then supersu.zip,now reboot..
Enjoy the CM12.1 in ZF2
For bugs ,discussion please goto Main Thread: here
BUGS: here
Credits : there are lot of ppl who contributed to have CM12.1 in zf2 than those who i mentioned below,thanks for them also..
@sorg for new unlocked bootloader without root
@shakalaca for old unlocked bootloader with root
@ravian29 for unlocking guide
@TheSSJ for TWRP ,thread is here
@jrior001 , @crpalmer , @hharte for CM12.1

This ROM is only for the Z00A?
Sent from my ASUS_Z008D using Tapatalk

Added to index, thanks for your work!

GreatItami said:
This ROM is only for the Z00A?
Sent from my ASUS_Z008D using Tapatalk
Click to expand...
Click to collapse
551ml (z00A and z00ad)
For now not supported for 550ml..

Okay. Nice tutorial.
Sent from my ASUS_Z008D using Tapatalk

OK, so far I'm unlocked. But, I'm stuck on step 3 - select the folder where you are having the twrp.img by pressing Shift + Right Click.. Then select "Open command here"
EDIT:Got it! I had to open the actual folder first with TWRP in it (adb is where I put it) in my C drive then the right click + shift works as you said within the folder - thanks so much for this tutorial!

Is it neccessary to be on 2.19.40.22? There wasn't much of a difference between 2.19.40.20 and 2.19.40.22. Would I have to flash the OTA then flash CM? Also, do you recommend wiping cache/dalvik after flashing GAPPS just in case?
PS: Thank you Ansebovi! All your guides are easy to read and follow.

texla said:
OK, so far I'm unlocked. But, I'm stuck on step 3 - select the folder where you are having the twrp.img by pressing Shift + Right Click.. Then select "Open command here"
EDIT:Got it! I had to open the actual folder first with TWRP in it (adb is where I put it) in my C drive then the right click + shift works as you said within the folder - thanks so much for this tutorial!
Click to expand...
Click to collapse
I did it by downloading Terminal for Android and putting the image on the internal storage and then opening Terminal and did this
su
dd if=/sdcard/twrp.img of=/dev/block/by-name/recovery
reboot recovery

CM12 zip is downloading really slow...i know its only 350mb but is going at barely 45kb/s ..is this normal? i know its not my connection -.-

texla said:
OK, so far I'm unlocked. But, I'm stuck on step 3 - select the folder where you are having the twrp.img by pressing Shift + Right Click.. Then select "Open command here"
EDIT:Got it! I had to open the actual folder first with TWRP in it (adb is where I put it) in my C drive then the right click + shift works as you said within the folder - thanks so much for this tutorial!
Click to expand...
Click to collapse
http://forum.xda-developers.com/attachment.php?attachmentid=3419717&stc=1&d=1437962670
http://forum.xda-developers.com/attachment.php?attachmentid=3419716&stc=1&d=1437962670
both works
Ntrasme said:
Is it neccessary to be on 2.19.40.22? There wasn't much of a difference between 2.19.40.20 and 2.19.40.22. Would I have to flash the OTA then flash CM? Also, do you recommend wiping cache/dalvik after flashing GAPPS just in case?
PS: Thank you Ansebovi! All your guides are easy to read and follow.
Click to expand...
Click to collapse
i updated from .20 and i had the mtp bug which others didnt have,..so i think its better to have .22 , try with .20 and look for bugs..only problem,u cant report the bug to them,since they are seeing with .22
cjvzla said:
CM12 zip is downloading really slow...i know its only 350mb but is going at barely 45kb/s ..is this normal? i know its not my connection -.-
Click to expand...
Click to collapse
no i downloaded the zip with 700KBps-1MBps ,definitely no problem from their side

ansebovi said:
http://forum.xda-developers.com/attachment.php?attachmentid=3419717&stc=1&d=1437962670
http://forum.xda-developers.com/attachment.php?attachmentid=3419716&stc=1&d=1437962670
both works
i updated from .20 and i had the mtp bug which others didnt have,..so i think its better to have .22 , try with .20 and look for bugs..only problem,u cant report the bug to them,since they are seeing with .22
no i downloaded the zip with 700KBps-1MBps ,definitely no problem from their side
Click to expand...
Click to collapse
OK, thank you. BTW do you know if TWRP can sideload the ota zips? Is there a conflict if I use ProjectT kernel while sideloading OTA? You are more knowledged than me.

ansebovi said:
TO flash the CM12.1 in your Zf2.....
Click to expand...
Click to collapse
...wow this a great rom
excuse me for asking but is this already running in 64bit mode?
or it is still 32bit?

Thanks. Worked flawlessly.

berlyshells said:
...wow this a great rom
excuse me for asking but is this already running in 64bit mode?
or it is still 32bit?
Click to expand...
Click to collapse
they used asus stock .22 latest update as base,so it should be x86 till the asus release x64bit and Cm updated to that firmware ...
Ntrasme said:
OK, thank you. BTW do you know if TWRP can sideload the ota zips? Is there a conflict if I use ProjectT kernel while sideloading OTA? You are more knowledged than me.
Click to expand...
Click to collapse
ota have patch for boot and recovery,..not a gud idea to flash ota with twrp,custom kernel...it may end up in failure

hi, finished downloading needed files, unlocked bootloader succesfully (white splash screen) , rooted, and installed unthetered twrp just like in the steps, however, when i tried to enter recovery for the first time just showed android on the floor with ERROR and red triangle logo...nothing happens so just rebooted and wating for a tip...thanks.
EDIT: sorry i did not read the same problem being resolved on page 1... got twrp running now.

Bro is there any bugs ? Please post bug list

himesh1994 said:
Bro is there any bugs ? Please post bug list
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=62014498&postcount=2
btw dont quote the whole op anywhere in xda please..edit ur post and delete the quote
Ntrasme said:
Is it neccessary to be on 2.19.40.22? There wasn't much of a difference between 2.19.40.20 and 2.19.40.22. Would I have to flash the OTA then flash CM? Also, do you recommend wiping cache/dalvik after flashing GAPPS just in case?
PS: Thank you Ansebovi! All your guides are easy to read and follow.
Click to expand...
Click to collapse
sry i forgot to answer the other qn before...no need to wipe cache after installing gapps as we wiping before the installation of both
and thanks for compliment

ansebovi said:
http://forum.xda-developers.com/showpost.php?p=62014498&postcount=2
btw dont quote the whole op anywhere in xda please..edit ur post and delete the quote
sry i forgot to answer the other qn before...no need to wipe cache after installing gapps as we wiping before the installation of both
and thanks for compliment
Click to expand...
Click to collapse
OK, thanks. Now to go on the long process of resetting everything so I can apply OTA. Restore stock recovery, restore stock kernel, unfreeze apps, uninstall framework, uninstall busybox, unroot.

Ntrasme said:
OK, thanks. Now to go on the long process of resetting everything so I can apply OTA. Restore stock recovery, restore stock kernel, unfreeze apps, uninstall framework, uninstall busybox, unroot.
Click to expand...
Click to collapse
haha ,thats really headache ... btw use manual ota for safety

For 500CL ?
I can't wait for this rom for the 500cl Zenfone 2. The original rom is awful, with the huge amount of bloatware any so many bugs ! Any chance to have this rom for the zenfone 2 500cl ?

[Complete Guide] SHIELD Tablet K1 Root, Custom Rom and Xposed Framework

Hello Guys,
At first a little background story:
I bought the Tablet 3 Month ago. I have got the Update to Android 6.0 in January and unfortunately, I applied it.
So If you don't want to apply a custom rom do not update to 6.0, because 5.1.1 is much better.
I am not responsible if anything goes wrong.
Ok, so let's get started:
At first you must install Minimal ADB and Fastboot on your PC/Laptop/Mac.
Windows: https://forum.xda-developers.com/showthread.php?t=2588979
Linux/Mac: http://rootmygalaxy.net/install-adb-and-fastboot-on-mac-or-linux/
Here is the link for all OSs: http://lifehacker.com/the-easiest-way-to-install-androids-adb-and-fastboot-to-1586992378
Before you can Root or flash a Custom Rom you must flash the recovery:
You will need:
-Nvidia Family Drivers(Extract it in a folder of your choice): http://nvidiashieldzone.com/files/shieldtv/shieldfamilydriver.zip not working anymore, official link:
http://developer.download.nvidia.com/mobile/shield/SHIELD_Family_WHQL_USB_driver_201801.zip
-As many of you are experiencing problems with my previously mentioned TWRP 2.8.7.3 version I am replacing the link with the official TWRP Shield Tablet Download Site. Just take the newest stable version: https://dl.twrp.me/shieldtablet/ (Put the file into the ADB+Fastboot Folder)
-TWRP 2.8.7.3 Recovery(Put the file into the ADB+Fastboot Folder): Download URL: https://www.androidfilehost.com/?fid=24269982087009777
Developer Post: http://forum.xda-developers.com/shi...recovery-twrp-2-8-7-0-touch-recovery-t3257172
Install the Drivers
Connect your Tablet to your PC
Windows:
Open your Device Manager
If there Is a device with a yellow ! klick on it and update the Drivers Manually(select the Folder where you extracted the Family Divers)
Linux:
You don't need any drivers
(For every fastboot command in ADB+Fastboot you will need a "sudo" in front of it...)
Mac:
You also don't need any drivers
(For every fastboot command in ADB+Fastboot you will need a "./" in front of it...)
Flash Recovery
1. Open Minimal ADB and Fastboot
2. Type in
Code:
adb devices
if you get a long term of numbers and letters your drivers are correctly installed, If this command does not bring up a device, check your cable connection and/or update your drivers again.
3. Now you must enable developer options on your SHIELD Tablet K1
3.1 Go to your Setting, scroll all the way down and choose Info(or similar)
3.2 Tap seven times on the Build Number
3.3 Now go back and now there is a new menu point Developer Options
3.4 Open them and Enable USB Debugging
4. Now type
Code:
adb reboot bootloader
EDIT: 4.1 To enable the fastboot protocol, you must select "Fastboot mode" on the Tablet. After that type
Code:
fastboot devices
in order to check if fastboot is enabled.
5. Before you can do anything you must unlock the Bootloader
5.1 Type in
Code:
fastboot oem unlock
5.2 Follow the Instructions on the Terminal(On your tablet: press the volume down button and then the power button)
6. Now you are ready to flash the recovery
6.1 Type in
Code:
fastboot flash recovery twrp-x.x.x-x-shieldtablet.img
6.2 Wait until it is finished then navigate with the volume buttons through the Menu on your Tablet and choose the option recovery mod with you power button
7. You are now in a custom Recovery on this point you must decide what you want to do:
-Do you only want to root your Device
-Or do you want to install a custom rom
Custom Rom
If you want to be on the safe side you should consider wiping the /data partition (Troubleshoot section at the end of the Post)
1. You can access your tablet from your PC
2. Now move your Custom rom to your internal or SD Card Storage
2.1 Download your custom rom of your choice.
2.1.1 Cyanogenmod 12.1 (Android 5.1.1) and BlissPop v4.0.3 https://www.androidfilehost.com/?w=files&flid=150249
2.1.2 Cyanogenmod 13.0 (Android 6.0) https://androidfilehost.com/?w=files&flid=27600&sort_by=date&sort_dir=DESC
2.1.3 Nvidia Shield Tablet Resurrection ROM (Android 6.x) https://androidfilehost.com/?w=files&flid=60681&sort_by=date&sort_dir=DESC
2.1.4 BlissPop
2.2 Download Google Apps (Gapps) (ARM Device)
2.2.1 Android 5.1 http://opengapps.org/?api=5.1&variant=stock
2.2.2 Android 6.0 http://opengapps.org/?api=6.0&variant=nano
2.3 Download Nvidia Apps (You still need to install Nvidia Shield HUB from the Play Store)http://forum.xda-developers.com/shield-tablet/development/shield-apps-cyanogenmod-12-t3070116
3. In TWRP click on Backup and Swipe to Back Up
3.1 Now go to Wipe. For a dirty flash you will only need to wipe the Dalvik and Cache for a full wipe select Dalvik, System, Data, Cache
4. After it has finished Click on Install and choose the .zip of your Custom Rom
4.1 To install the Google Apps click on Add More Zips and select the GApps zip
4.2 And again click on Add More Zips and select nvsystemservices.zip
4.3 now you can Swipe to Confirm Flash
Root
Download the Latest Stabel SuperSU file: http://download.chainfire.eu/supersu-stable and copy it to the internal or SD Card Storage
For Android 7.0 (Nougat) the SuperSU r4 2.78 version is confirmed working.
1. Open Minimal ADB and Fastboot
2. Type in
Code:
adb reboot recovery
to enter the recovery mode
3. In TWRP click on Backup and Swipe to Back Up
4. After it has finished Click on Install and choose the UPDATE-SuperSU-v2.65-20151226141550.zip (or similar) and Swipe to Confirm Flash
5. Restart you Tablet and now a new App SuperSU is Installed
Xposed Framework
Download the Xposed Framework Zip file, take the newest version:
(The Shield Quad Core has a 32 bit arm architecture, so you need the framework for arm)
SDK21 for Android 5.0: http://dl-xda.xposed.info/framework/sdk21/arm/
SDK22 for Android 5.1: http://dl-xda.xposed.info/framework/sdk22/arm/
SDK23 for Android 6.0: http://dl-xda.xposed.info/framework/sdk23/arm/
and the apk: https://forum.xda-developers.com/attachment.php?attachmentid=3921508&d=1477916609
and move them to you Tablet.
Developer Thread (for the uninstaller): https://forum.xda-developers.com/showthread.php?t=3034811
Go to Recovery with Root
1. Now that you have root you don't need you PC anymore. Go to the Play store and download Quick Boot
2. Open Quick Boot and klick on Recovery
3. Allow Root rights and the Tablet should boot into recovery
Go to Recovery without Root
1. Shut down your Tablet
2. Press and hold the Vol down button and the Power button until the Bootloader screen appears
3. Navigate with the volume buttons through the Menu on your Tablet and choose the option recovery mod with you power button
Install Xposed Framework
1. In the TWRP Recovery (Optionally you can make a Backup) select Install and choose the xposed-v80-sdk22-arm.zip file
2. When you get an Error let me know
3. Now Restart you Tablet and install the .apk file normally
4. In the App Press Framework and now there should be a green writing saying: Xposed Framework version 80 is active
5. Here is a list of very useful programs for the Xposed Framework: http://forum.xda-developers.com/android/general/best-xposed-modules-android-t3103027
Please Leave a post if you are getting errors or something isn't clearly explained! And if I could help you, consider giving me a Thanks
Troubleshoot
If you are stuck in a Bootloop:
Without data loss(e.g. when you installed Xposed framework zip and its stuck in a bootloop)
1. flash the stock rom boot image BUT ONLY IF YOU DONT USE A CUSTOM ROM (it will probably loose root). go to https://developer.nvidia.com/gameworksdownload#?search=SHIELD Tablet K1&tx=$additional,shield and download the latest NVIDIA SHIELD Tablet K1 Recovery OS Image
2. Unpack the zip file and flash it to your Tablet
Code:
fastboot flash boot boot.img
If something went wrong while flashing a custom rom (after that you will need to flash the custom/stock rom again)
wipe the /data partition. It could be encrypted from the previous rom. Be aware that you need to reinstall the rom, therefore loose all your data. Troubleshot guide by agentbob123
-Toby
Credits:
@xsquid mac support
@agentbob123 suggestion to mention to wipe the /data partition as a solution for being stuck in a bootloop
@champs777 suggested the newest TWRP
@grävling mentioned importance of waiting until the recovery flash is finished

Toby9 said:
Hello Guys,
At first a litte background story:
I bought the Tablet 3 Month ago. I have got the Update to Android 6.0 in January and unfortunately i applied it.
So If you don't want to apply a custom rom do not update to 6.0, because 5.1.1 is much better.
Ok, so let's get started:
I am not responsible if anything goes wrong.
At first you must install Minimal ADB and Fastboot on your PC/Laptop/Mac.
Here is the link for all OSs: http://lifehacker.com/the-easiest-way-to-install-androids-adb-and-fastboot-to-1586992378
Before you can Root or flash a Custom Rom you must flash the recovery:
You will need:
-Nvidia Family Drivers(Extract it in a folder of you choice): http://nvidiashieldzone.com/files/shieldtv/shieldfamilydriver.zip
-TWRP 2.8.7.3 Recovery(Put the file into the ADB+Fastboot Folder):
Download URL: https://www.androidfilehost.com/?fid=24269982087009777
Developer Post: http://forum.xda-developers.com/shi...recovery-twrp-2-8-7-0-touch-recovery-t3257172
Install the Drivers
Connect your Tablet to your PC
Windows:
Open your Device Manager
If there Is a device with a yellow ! klick on it and update the Drivers Manually(select the Folder where you extracted the Family Divers)
Linux:
You dont need any drivers
(For every fastboot command in ADB+Fastboot you will need a sudo in front of it...)
Mac:
2016/02/16 Please leave a post if you how to do this
1. Open Minimal ADB and Fastboot
2. Type in
Code:
adb devices
if you get a long term of numbers and letters your drivers are correctly installen, If this command does not bring up a device, check your cable connection and/or update your drivers again.
3. Now you must enable developer options on your SHIELD Tablet K1
3.1 Go to your Setting, scroll all the way down and choose Info(or similar)
3.2 Tap seven times on the Build Number
3.3 Now go back and now there is a new menu point Developer Options
3.4 Open them and Enable USB Debugging
4. Now type
Code:
adb reboot bootloader
5. Before you can do anyting you must unlock the Bootloader
5.1 Type in
Code:
fastboot oem unlock
5.2 Follow the Instructions on the Terminal(On your tablet: press the volume down button and then the power button)
6. No you are ready to flash the recovery
6.1 Type in
Code:
fastboot flash recovery twrp-2.8.7.3-shieldtablet.img
6.2 Wait until it is finished then move with the volume buttons through the Menu on your Tablet an choose the option recovery mod with you power button
7. You are now in a custom Recovery on this point you must decide what you want to do:
-Do you only want to root your Device
-Or do you want to install a cutom rom
Custom Rom
1. You can access your tablet on your pc
2. Now move your Custom rom to your internal or SD Card Storage
2.1 Download your custom rom of your choice. I decided to use Cyanogenmod 12.1 (Android 5.1.1) http://forum.xda-developers.com/shi...-cyanogenmod-12-shield-tablet-lte-na-t3055043
2.2 Download Google Apps (Gapps) (ARM Device) http://opengapps.org/?api=5.1&variant=stock
2.3 Download Nvidia Apps (You still need to install Nvidia Shield HUB from the Play Store)http://forum.xda-developers.com/shield-tablet/development/shield-apps-cyanogenmod-12-t3070116
3. In TWRP click on Backup and Swipe to Back Up
4. After it has finished Click on Install and choose the .zip of your Custom Rom
4.1 To install the Google Apps click on Add More Zips an select the GApps zip
4.2 And again click on Add More Zips and select nvsystemservices.zip
4.3 now you can Swipe to Confirm Flash
Root
Download the Latest Stabel SuperSU file: http://download.chainfire.eu/supersu-stable and copy it to the internal or SD Card Storage
1. Open Minimal ADB and Fastboot
2. Type in
Code:
adb reboot recovery
to enter the recovery mode
3. In TWRP click on Backup and Swipe to Back Up
4. After it has finished Click on Install and choose the UPDATE-SuperSU-v2.65-20151226141550.zip (or similar) and Swipe to Confirm Flash
5. Restart you Tablet and now a new App SuperSU is Installen
Please Leave a post if you are getting errors or someting isn't clearly explaned!
-Toby
Click to expand...
Click to collapse
My tablet just keeps rebooting to the lock screen whenever I try to go to recovery mode... Somehow twrp doesn't stick... It did when I was on Lollipop. I have already tried to flash the recovery, do a full reboot before trying to get in twrp but without success.

On mac
You dont need any drivers
(For every fastboot command in ADB+Fastboot you will need a ./ in front of it...)
example being ./fastboot oem unlock

xsquid said:
On mac
You dont need any drivers
(For every fastboot command in ADB+Fastboot you will need a ./ in front of it...)
example being ./fastboot oem unlock
Click to expand...
Click to collapse
Thank you I added this in guide

nielsscholte said:
My tablet just keeps rebooting to the lock screen whenever I try to go to recovery mode... Somehow twrp doesn't stick... It did when I was on Lollipop. I have already tried to flash the recovery, do a full reboot before trying to get in twrp but without success.
Click to expand...
Click to collapse
Try other TWRP versions like 2.8.7.0 or 2.8.7.1 i think the 3.0.0.0 is for Andoid 6.0 devices so if you are currently in the newest version of the Android OS try this one out
The 3.0 versionof TWRP was unstabel on my device so you should flash it wipe the storage and flash one of the older ones

nielsscholte said:
My tablet just keeps rebooting to the lock screen whenever I try to go to recovery mode... Somehow twrp doesn't stick... It did when I was on Lollipop. I have already tried to flash the recovery, do a full reboot before trying to get in twrp but without success.
Click to expand...
Click to collapse
3.0.0.0 wasn't out yet when I did mine but it was doing the same thing and this worked perfectly:
fards said:
Try deleting recoveryonboot.p in /system
Click to expand...
Click to collapse
Credit to fards.

xsquid said:
3.0.0.0 wasn't out yet when I did mine but it was doing the same thing and this worked perfectly:
Credit to fards.
Click to expand...
Click to collapse
How can I remove this file without root ?

SonicDBZFan07 said:
How can I remove this file without root ?
Click to expand...
Click to collapse
Try your normal command line for flashing recovery except change flash to boot. It doesn't flash it, just boots to it.
In other words, if you are using:
1. Fastboot Flash recovery recoveryname.img
Do instead:
2. Fastboot boot recovery recoveryname.img
While in recovery (make sure the supersu zip is on the sd card or wherever you normally flash files from first) flash supersu. You should now be rooted but without a recovery.
Go then to delete the file and then reboot, flash the recovery as normal (#1), reboot and then it should be good to go. It was for me.

rooted device no need to unlock bootloader it will unlock for ittself
just go to playstore and dowload twrp manager
choose the name of your device
and choose one of the two versions available
for shield tablet the version 3.0.0.0 doesnt work well it spilts the screen but wthe other version Works great
the link is twrpmanager on play.google
this way you dont need to connect your tablet to your pc

Great work!

Thank you for the awesome guide. Besides deleting the TegraOTA apk, is there any other app/service that I should disable to prevent OTA updates?

Followed the guide after screwing my device up with official firmware. Thanks for nothing Nvidia, why are you offering OTA that cause the device to stop working correctly.
Nothing happened other than appearing to boot itself to the "powered by android" (kernel) screen over and over.
Held down power + volume UP ...
And it factory reset itself.
Somehow.
Did I mention that Nvidia is a terrible company?
Edit: Fixed using TWRP v3.0.0 - this guide should be updated to reflect this particuarly as people who screw their device up after trusting Nvidia OTA MM will be using it.

diji1 said:
Followed the guide after screwing my device up with official firmware. Thanks for nothing Nvidia, why are you offering OTA that cause the device to stop working correctly.
Nothing happened other than appearing to boot itself to the "powered by android" (kernel) screen over and over.
Held down power + volume UP ...
And it factory reset itself.
Somehow.
Did I mention that Nvidia is a terrible company?
Edit: Fixed using TWRP v3.0.0 - this guide should be updated to reflect this particuarly as people who screw their device up after trusting Nvidia OTA MM will be using it.
Click to expand...
Click to collapse
I'm sorry that you had that problem but this guide is a general guide and not an screw nvidia (besides they are awesom giving us a really good tablet for 200 Buck, but jea?) guide. TWRP v3.0.0 has his bugs so generally when you have finished deleting the stock rom you should flash TWRP 2.8.7.3 works the most stabel.

Trafalgar Square said:
Great work!
Click to expand...
Click to collapse
Thanks, i appreciate that

Add TWRP to M image (Shield 1.1)
Folks,
Just received Nvidia Shield K1 and OTA immediately upgraded it to M (Shield 1.1) and I unlocked bootloader no problem. However when I go to flash or temp boot twrp 2.x or 3.x it flashes OK, but when I reboot (either via fastboot or hard off/start to recovery manually) it appears it is overwriting the recovery partition and it just boots normally.
Is there a limitation to flashing twrp bootloader in M, and do I have to downgrade to L to flash recovery partition?
I seem to be happy w/ stock (limited stick time), I just want to root at this point and install my favs. Once I get this running will supersu pro preserve root, or do I need to turn off nvidia OTA process.
Also I see optimization for chrome, does this do anything X1 optimizations)?
Thanks

psychic99 said:
Folks,
Just received Nvidia Shield K1 and OTA immediately upgraded it to M (Shield 1.1) and I unlocked bootloader no problem. However when I go to flash or temp boot twrp 2.x or 3.x it flashes OK, but when I reboot (either via fastboot or hard off/start to recovery manually) it appears it is overwriting the recovery partition and it just boots normally.
Is there a limitation to flashing twrp bootloader in M, and do I have to downgrade to L to flash recovery partition?
I seem to be happy w/ stock (limited stick time), I just want to root at this point and install my favs. Once I get this running will supersu pro preserve root, or do I need to turn off nvidia OTA process.
Also I see optimization for chrome, does this do anything X1 optimizations)?
Thanks
Click to expand...
Click to collapse
After you flash twrp reboot to recovery. I may be wrong, but I think the stock ROM overwrites the custom recovery at reboot. If you reboot to twrp first after flash, twrp will disable this.
Sent from my SHIELD Tablet K1 using Tapatalk

Rooting
Hi everyone,
Yesterday got my new Nvidia Shield Tegra K1 and upon using it I noticed it's a great tablet for it's price range and will do my job easier while flying my Phantom 4. To be honest it's seems very stable and solid but was thinking about rooting it. I have some questions regarding the process wince I haven't rooted anything since my HTC Fire, log time ago that was. What are the benefits of rooting this device ? Will I still be able to update the Shield with its official updates ? Will I be able to roll back to an unrooted tablet should I need too ? I wasn't planning on flashing a custom rom but if I'll do what are the pros and cons of doing so ? I know that maybe searching this forum I would find all the answers needed but since there is so much information and threads I'm lost as from were to start from.
Would be nice to guide me about how to properly root my device with all the necessary links. My tab is running on Android 6.0.
I thank you so much guys for the hard work you all do in providing such information. I know it takes a lot of time and patience.

I just got a Shield K1. I like it a lot but I wanted to root it. Then I saw how confusing it is to distinguish between it and the previous model. My guess is whatever is out there that says Shield Tablet means the old one not the K1. I also updated mine to MM cause I'm using and 128GB micro sd card for internal storage. I guess I'll just have to wait until more support comes out for this tablet such as a stable TWRP 3.0 Recovery and the ability to gain root access and custom ROMs like CM 13.

do you recommed to install all OTAs before install custom recovery and custom roms or is it better to install twrp-2.8.7.1 out of the box and then go for the custom stuff ?

I would install all updates to get the latest bootloader. Do not install twrp 2.8.7.1. Install the official 3.0.x from the official site.