Database Users

Nexus 7 wont boot pass google logo after root/unroot

I got a nexus7 a week ago but decided to root the device today just to try apps which require root, i rooted it fine but i decided to unroot and thats where the problem started i cant boot pass the google image, i can get into where you hold down volume and power for so many seconds and team win recovery which says i have no OS in the reboot section, i've tryed nexus 7 toolkit v3.2.0 and nexus root toolkit to restore back to factory system but no luck, so is it me doing something wrong or is my nexus 7 just a paper weight now.

Doubt it,
Being you still have a custom recovery you didn't follow the right steps to unroot, might need to unlock the bootloader again, but follow one of the many guides, and try to stay away from a tool kit
Sent from my HTC Vision using xda premium

Unlock bootloader
Flash boot, recovery, system, userdata.
Files are zipped in the factory images directly from google.
Wipe cache.
Relock bootloader.
Reboot into recovery.
Factory reset. (Nexus 7 will only see 8GB if you don't do this step)
That is the gist of how it's done.

I followed a step by step guide on laptop man website but when i come to flash the android image it says file too large, i used 4.2.1 from googles site, if i'm correct when you type fastboot -w update image-nakasi-jro03d.zip (in the walkthrough) i can replace it with a later newer android in this case 4.2.1 jop40d

You could do it that way. Some people have. Although I received an error every time I did.
I didn't receive an error when I flashed the files in the zip.
First make sure you have the correct factory image for your device downloaded.
Then make sure you extract the boot.img, recovery.img, system.img, and userdata.img files to your fastboot folder and perform the following actions...
fastboot oem unlock
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot reboot-bootloader
fastboot oem lock
Lastly, boot your system up into recovery and perform a factory reset from there. If you don't do the last step they you will be stuck with ouly 8GB, vice 16 or 32.
It's that easy.

When i try to boot into recovery mode i get the android mascot with a red triangle, does that mean i have no recovery file.
OOOPS the system booted up into android as the recovery mode didnt work (as above) is there anyway i can reset to factory settings to get the 32GB back as it shows 6GB.
Update: I think i sorted it out now somehow as it shows up as 27.oddGB now (about same as i got it) instead of 6GB, anyway thanks for your help, it seemed complex well it is but once you know whats what it's not so, the hardest part is getting the files and putting them in the right places

When I try to reboot to recovery via the bootloader it just hangs... Can boot to recovery inside android (usually using Rom Manager or another reboot application)... any idea why?

I have read reports that it will hang when booting into recovery if not connected to a PC.
And as for that triangle you see.... That's normal.
That means that your in recovery mode. Your menu is just hidden.
Press power and volume up to view it.

Android 4.3 image errors

Hey guys, I'm currently trying to flash back to the new 4.3 factory image that I downloaded from Google, however, it all goes fine, I flashed the bootloader, flashed the radio and it all says it has been updated properly, then when I try and flash the system.img files and boot.img files they just say no such file or directory exists and stops, meaning the phone is unusable at the moment until I flash something.
Anyone know why this is happening?
BTW I'm using a mac.
Issue fixed, see below!
************************************************************************************************
Ok guys, the problem was solved in an odd way!
I got annoyed with the flashing errors, and flashed the old kernel and radio I was using with my Illusion rom which thankfully got me back to that even though I had lost all of my data (backed up though).
For anyone having this problem and wants to unroot to go back to 4.3 or is trying to flash the legit 4.3 rom from Google and then maybe unroot or just use the 4.3 rom direct from Google...
DOWNLOAD THE LEAKED 4.3 ROM AND FLASH USING STANDARD CWM METHOD.
DOWNLOAD THE .84/.83 KERNEL AND FLASH THIS AS WELL.
After this I got the legitimate OTA update which was only 3.4mb and it even fixed root so I am now back to complete stock, locked bootloader and no root!
Hope this helps
Click to expand...
Click to collapse

Easiest way of flashing the system image is to just use the flash-all script included in the TGZ - just extract it out and run it when the phone is connected in fastboot mode. Personally, I do the following:
1. Extract the entire TGZ (including the update.zip)
2. Move all the IMG files into one folder
3. Rename them to easy names, e.g. bootloader, radio, system, userdata, boot, recovery, etc.
4. Flash them all in turn, rebooting the bootloader each time
5. Once all done, erase/format the cache (fastboot erase cache and fastboot format cache)
6. Boot into recovery and clear cache again and then do a factory reset (this makes sure the unit see all the internal memory)
7. Reboot the phone
Should all work now

siravarice said:
Hey guys, I'm currently trying to flash back to the new 4.3 factory image that I downloaded from Google, however, it all goes fine, I flashed the bootloader, flashed the radio and it all says it has been updated properly, then when I try and flash the system.img files and boot.img files they just say no such file or directory exists and stops, meaning the phone is unusable at the moment until I flash something.
Anyone know why this is happening?
BTW I'm using a mac.
Click to expand...
Click to collapse
Maybe you have corrupted files? Retry the download from google and unpack all with 7zip.
I did that yesterday and all works fine.
4.3 (JWR66V)
https://dl.google.com/dl/android/aosp/occam-jwr66v-factory-08d2b697.tgz
7zip
http://www.7-zip.de/
[HOW-TO] How to flash a factory image / return to stock / unlock / root #
http://forum.xda-developers.com/showthread.php?t=2010312

EddyOS said:
Easiest way of flashing the system image is to just use the flash-all script included in the TGZ - just extract it out and run it when the phone is connected in fastboot mode
Click to expand...
Click to collapse
How would I do that on a mac? I tried typing:
./fastboot flash flash-all.bat
but do I need to use the .sh version?

info.brandenburg said:
Maybe you have corrupted files? Retry the download from google and unpack all with 7zip.
I did that yesterday and all works fine.
Click to expand...
Click to collapse
Did that, same thing happened. I tried flashing the entire .zip and then I tried separately and it still didn't work.

Ok so I know it is just the system.img file that doesn't work, as all the other files have just flashed fine! Going to re-download and see if that helps.

siravarice said:
How would I do that on a mac? I tried typing:
./fastboot flash flash-all.bat
but do I need to use the .sh version?
Click to expand...
Click to collapse
You just run the script, you don't flash it. It's a batch file which then does all the fastboot commands. You also use flash-all.sh as you don't have Windows

EddyOS said:
You just run the script, you don't flash it. It's a batch file which then does all the fastboot commands. You also use flash-all.sh as you don't have Windows
Click to expand...
Click to collapse
Still doesn't work.
I used: bash flash-al.sh
And it just said fastboot not found in certain lines for the command and did nothing. I thought it fixed itself when I swapped USB ports but when it got to the system.img it just gave me the same error again. It flashes everything else ok but not this file, it's the third time I have downloaded it and now I have no way to get it back to being useable as when I press start it just gives me a black screen
HELP PLEASE!

I would but I use Windows and it's all fine. Might be worth downloading the factory image again, checking the md5 and trying to flash the system image again

EddyOS said:
I would but I use Windows and it's all fine. Might be worth downloading the factory image again, checking the md5 and trying to flash the system image again
Click to expand...
Click to collapse
Im trying to install some Samsung Android Drivers on my old laptop but the thing is so slow it's basically impossible to work from now
I've redownloaded the files, I don't know how to check the MD5Sum though. Still nothing doing. I get this error:
checking product... OKAY
checking version-bootloader... OKAY
checking version-baseband... OKAY
sending 'boot' (6166 KB)... OKAY
writing 'boot'... OKAY
sending 'recovery' (6664 KB)... OKAY
writing 'recovery'... OKAY
sending 'system' (531281 KB)... ERROR: usb_write failed with status e00002be
FAILED (data transfer failure (No such file or directory))
edue3e4:4.2unrootnexus4 Simon$
It really doesn't want to write the system.img file, or maybe it doesn't want to write to system?

What happens if you extract the system.img file and flash it via fastboot manually?
fastboot flash system system.img
I always use this guide if I forget:
efrant said:
D. Type in the commands into the command prompt
1) Make sure your computer recognizes your device by typing: fastboot devices
2) Unlock your bootloader (if you have not already done so): fastboot oem unlock
3) You will see a prompt on your device. This will wipe your entire device (including the /sdcard folder). Accept. Note: you use the volume keys to change the option and the power button to accept. You cannot use the touch screen.
4) Reboot by typing: fastboot reboot-bootloader
5) Flash the bootloader: fastboot flash bootloader bootloader-mako-makoz10o.img (or whatever the name of the bootloader image that you downloaded).
6) Reboot: fastboot reboot-bootloader
7) Flash the radio: fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1700.48.img (or whatever the name is of the radio image that you downloaded).
8) Reboot: fastboot reboot-bootloader
9) Flash the system partition: fastboot flash system system.img
10) Flash the data partition: fastboot flash userdata userdata.img Note: this command will wipe your device (including /sdcard), EVEN if your bootloader is already unlocked. See note 2 below.
11) Flash the kernel/ramdisk: fastboot flash boot boot.img
12) Flash the recovery partition: fastboot flash recovery recovery.img
13) Erase the cache partition: either a) fastboot erase cache OR b) fastboot format cache <<== the second option seems to work better for most people. Thanks joostburg.
14) Reboot: fastboot reboot
15) Done! The first boot will likely take quite a bit longer than you are used to, as Android builds the Dalvik cache.
Now you have a fully stock image on your device. The only thing that is different from out-of-the-box condition is that your bootloader is unlocked. See the notes section at the end of this post for information on re-locking the bootloader.
Note that some users indicate that they can't get past the X on boot. If this happens to you, reboot into the bootloader and select recovery. Then, when you see the Android with the red exclamation mark, hold power and press volume up to take you to the menu. Wipe cache. If that still doesn't work, boot back into recovery and do a factory reset.
If you have a 16GB device, and it now shows up as 8GB, reboot into recovery (hold power and press volume up when you are at the screen with the android and the red exclamation mark), and wipe cache. If that still doesn't work, boot back into recovery and do a factory reset. Or do this
Click to expand...
Click to collapse

EddyOS said:
What happens if you extract the system.img file and flash it via fastboot manually?
fastboot flash system system.img
I always use this guide if I forget:
Click to expand...
Click to collapse
That's exactly what I have been doing, I prefer doing it manually as I don't like using Toolkits and finding a good one for mac is hard enough.
It just says that it cannot send it because the file or directory does not exist, yet if I unplug the phone it does go back into my old rom I was using before that, even though I flashed a new radio and recovery.img, boot.img, user data.img, everything except system.img as it doesn't work

Something clearly wrong with the partition but no idea what...

I know right, I've gone back to the ROM I had previously and downloaded the leaked 4.3 rom and flashed it through flashify. If it works I will simply lock the bootloader again and it should be good to go!

i did the same way through nexus tool kit 2.0 n p.s i guess the file was corrupted that y it failed in the mid. ill try it again

Hmmy 4444 said:
i did the same way through nexus tool kit 2.0 n p.s i guess the file was corrupted that y it failed in the mid. ill try it again
Click to expand...
Click to collapse
Let me know if you get anywhere with it!

it worked.. jst copy the image n dont rename it n go to google nexus 4 toolkit folder n there u would see a folder named *put googlr factory image here* paste it there n before starting ur bootloader must be unlocked.. so thats that.. after that that open the nexus 4 toolkit n then click on number 9 whch says download extract + flash google factore stock rom n then after that type 2 whch says flash google factory image... n thats it. it will automatically flash it.... gv me thanks too
Sent from my Nexus 4 using xda app-developers app

Hi there, same issue with me on a mac
Plus can you tell me how you went back to the previous rom, my phone is unusable right now and i do have a nandroid backup so.

Have either of your tried to flash the 4.2.2 factory image? Would be interested to see if it works
Sent from my Nexus 4 using xda premium

EddyOS said:
Have either of your tried to flash the 4.2.2 factory image? Would be interested to see if it works
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I dont mind, can you direct me towards a post where they show how to, i m not sure of all this and dont want to mess around with wrong files.
UPDATE: I tried and that works just fine. Rebooted to 4.2.1

Boot loop / blank screen

so I could use some major help! I received my new nexus yesterday and I believe i've already soft-bricked it somehow but I can't seem to recover it. I've read that you should change the APNs from the cingular ones to the new att settings. I did this, and then I rebooted phone, but somehow it got stuck in a boot loop. so i was like S%^T, and all. so like a moron I started messing around in fastboot and I unlocked the bootloader through cmd line. I found this article http://forum.xda-developers.com/showthread.php?t=2010312 which I figured was my best chance for a recovery. I also tried the Nexus Root Toolkit v1.7.1 and told it i was softbricked / bootloop scenario. I've tried loading the twrp, cwrm, stock recoveries, but evertime I try to boot to the screen is on, but blank. i dont get the android with the !..
NOTHING is working!
I think my major problem at this point is i NEED usb debugging enabled, but I cant get into android gui itself to enable this option.
Believe me ANY help is greatly appreciated and I'll but you a pizza and have it delivered to your home...:laugh:

This should be easy, just put your device on bootloader and use this tool, make sure you have the ADB and Fastboot files with it all.
https://developers.google.com/android/nexus/images#occamjwr66y
Sent from my Nexus 4 using Tapatalk 4

Done this also. I used the 4.2.2 files for Mako. Then followed the link instructions that I posted from that link.
1) Make sure your computer recognizes your device by typing: fastboot devices
2) Unlock your bootloader (if you have not already done so): fastboot oem unlock
3) You will see a prompt on your device. This will wipe your entire device (including the /sdcard folder). Accept. Note: you use the volume keys to change the option and the power button to accept. You cannot use the touch screen.
4) Reboot by typing: fastboot reboot-bootloader
5) Flash the bootloader: fastboot flash bootloader bootloader-mako-makoz10o.img (or whatever the name of the bootloader image that you downloaded).
6) Reboot: fastboot reboot-bootloader
7) Flash the radio: fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1700.48.img (or whatever the name is of the radio image that you downloaded).
8) Reboot: fastboot reboot-bootloader
9) Flash the system partition: fastboot flash system system.img
10) Flash the data partition: fastboot flash userdata userdata.img Note: this command will wipe your device (including /sdcard), EVEN if your bootloader is already unlocked. See note 2 below.
11) Flash the kernel/ramdisk: fastboot flash boot boot.img
12) Flash the recovery partition: fastboot flash recovery recovery.img
13) Erase the cache partition: either a) fastboot erase cache OR b) fastboot format cache <<== the second option seems to work better for most people. Thanks joostburg.
14) Reboot: fastboot reboot
15) Done! The first boot will likely take quite a bit longer than you are used to, as Android builds the Dalvik cache.
At step 8 it doesn't reboot saying it failed and I have to hardboot back into bootloader from every step forward where required. Eventually I can flash all the img files and reboot phone. I'll then see and android logo with a blue rotating sphere and status bar, then reboots. it does this several times then screen goes blank.

evo_guy said:
Done this also. I used the 4.2.2 files for Mako. Then followed the link instructions that I posted from that link.
1) Make sure your computer recognizes your device by typing: fastboot devices
2) Unlock your bootloader (if you have not already done so): fastboot oem unlock
3) You will see a prompt on your device. This will wipe your entire device (including the /sdcard folder). Accept. Note: you use the volume keys to change the option and the power button to accept. You cannot use the touch screen.
4) Reboot by typing: fastboot reboot-bootloader
5) Flash the bootloader: fastboot flash bootloader bootloader-mako-makoz10o.img (or whatever the name of the bootloader image that you downloaded).
6) Reboot: fastboot reboot-bootloader
7) Flash the radio: fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1700.48.img (or whatever the name is of the radio image that you downloaded).
8) Reboot: fastboot reboot-bootloader
9) Flash the system partition: fastboot flash system system.img
10) Flash the data partition: fastboot flash userdata userdata.img Note: this command will wipe your device (including /sdcard), EVEN if your bootloader is already unlocked. See note 2 below.
11) Flash the kernel/ramdisk: fastboot flash boot boot.img
12) Flash the recovery partition: fastboot flash recovery recovery.img
13) Erase the cache partition: either a) fastboot erase cache OR b) fastboot format cache <<== the second option seems to work better for most people. Thanks joostburg.
14) Reboot: fastboot reboot
15) Done! The first boot will likely take quite a bit longer than you are used to, as Android builds the Dalvik cache.
At step 8 it doesn't reboot saying it failed and I have to hardboot back into bootloader from every step forward where required. Eventually I can flash all the img files and reboot phone. I'll then see and android logo with a blue rotating sphere and status bar, then reboots. it does this several times then screen goes blank.
Click to expand...
Click to collapse
Well I was able to run the "flash-all" batch file with success, no errors or bootloader reboot issues. Phone rebooted again and now I'm suppose to be waiting for Dalvik Cache to rebuild. This is about 10 mins ago though, any ideas how long it takes to do this??

evo_guy said:
Well I was able to run the "flash-all" batch file with success, no errors or bootloader reboot issues. Phone rebooted again and now I'm suppose to be waiting for Dalvik Cache to rebuild. This is about 10 mins ago though, any ideas how long it takes to do this??
Click to expand...
Click to collapse
Should take around 10-15 min. If its taking more than 20 minutes i would suggest going into the bootloader, then into the stock recovery and doing a factory reset from there.

Chromium_ said:
Should take around 10-15 min. If its taking more than 20 minutes i would suggest going into the bootloader, then into the stock recovery and doing a factory reset from there.
Click to expand...
Click to collapse
well screen was blank the entire time. I did see the Google logo but NO nexus logo. i rebooted to bootloader and selected recovery and still was blank......FML

evo_guy said:
well screen was blank the entire time. I did see the Google logo but NO nexus logo. i rebooted to bootloader and selected recovery and still was blank......FML
Click to expand...
Click to collapse
Try flashing the stock images again. http://forum.xda-developers.com/showthread.php?t=2010312

Chromium_ said:
Try flashing the stock images again. http://forum.xda-developers.com/showthread.php?t=2010312
Click to expand...
Click to collapse
no different. just sits at a blank screen, i see the google with the unlocked symbol at bottom which then changes to a blank screen and sits there....
do i have to have USB Debugging enabled to accomplish any of these changes??

evo_guy said:
no different. just sits at a blank screen, i see the google with the unlocked symbol at bottom which then changes to a blank screen and sits there....
do i have to have USB Debugging enabled to accomplish any of these changes??
Click to expand...
Click to collapse
USB Debugging is just really a ADB switch for the OS.
Sent from my Nexus 4 using Tapatalk 4

Nexus 4 cannot pass the X screen after uninstalling Ubuntu Touch

I followed official Ubuntu Touch instructions for installing/uninstalling Ubuntu.
Installation went without any problems, but after returning back Android, the device is stuck on the "X" animation and cannot proceed.
I tried the following:
Going into recovering mode
Flashing the device to stock version of Android (v4.2)
Flashing the device to previous installed Android (v4.3)
The flash-all.sh command is executed successfully every time, but boot gets stuck at "X" animation no matter what I do.
What can I do to fix this issue? Any ideas?
Thanks!

batric said:
I followed official Ubuntu Touch instructions for installing/uninstalling Ubuntu.
Installation went without any problems, but after returning back Android, the device is stuck on the "X" animation and cannot proceed.
I tried the following:
Going into recovering mode
Flashing the device to stock version of Android (v4.2)
Flashing the device to previous installed Android (v4.3)
The flash-all.sh command is executed successfully every time, but boot gets stuck at "X" animation no matter what I do.
What can I do to fix this issue? Any ideas?
Thanks!
Click to expand...
Click to collapse
try this !
http://forum.xda-developers.com/showthread.php?t=2010312
try to format cache via fastboot.
fastboot erase cache and fastboot format cache and reboot!
if it happens the same try to enter in the stock recovery! attention just stock recovery and press and follow this:
---> Note that some users indicate that they can't get past the X on boot. If this happens to you, reboot into the bootloader and select recovery. Then, when you see the Android with the red exclamation mark, hold power and press volume up to take you to the menu. Wipe cache. If that still doesn't work, boot back into recovery and do a factory reset (this will obviously delete all your data & files in /sdcard...).
and if not boots dont worry try to flash everything again manually dont press the button flash all , just follow the point D
D. Type in the commands into the command prompt
1) Make sure your computer recognizes your device by typing: fastboot devices
2) Unlock your bootloader (if you have not already done so): fastboot oem unlock
3) You will see a prompt on your device. This will wipe your entire device (including the /sdcard folder). Accept. Note: you use the volume keys to change the option and the power button to accept. You cannot use the touch screen.
4) Reboot by typing: fastboot reboot-bootloader
5) Flash the bootloader: fastboot flash bootloader bootloader-mako-makoz10o.img (or whatever the name of the bootloader image that you downloaded).
6) Reboot: fastboot reboot-bootloader
7) Flash the radio: fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1700.48.img (or whatever the name is of the radio image that you downloaded).
8) Reboot: fastboot reboot-bootloader
9) Flash the system partition: fastboot flash system system.img
10) Flash the data partition: fastboot flash userdata userdata.img Note: this command will wipe your device (including /sdcard), EVEN if your bootloader is already unlocked. See note 2 below.
11) Flash the kernel/ramdisk: fastboot flash boot boot.img
12) Flash the recovery partition: fastboot flash recovery recovery.img
13) Erase the cache partition: either a) fastboot erase cache OR b) fastboot format cache <<== the second option seems to work better for most people. Thanks joostburg.
14) Reboot: fastboot reboot
15) Done! The first boot will likely take quite a bit longer than you are used to, as Android builds the Dalvik cache.
it should works!!

Thanks a lot for your answer Alvin - the issue was related to caches. I managed to fix the situation by doing the following:
Going into the bootloader mode and selecting "Recovery"
Holding volume up and power button until a new screen is opened
Do a factory reset
Wipe out partition cache
Do a factory reset again
Everything seems to be working properly now.

Help with bootloop

Hi,
I did search, but I didn't find any solution to the issue. I got the Nexus 6P 64 GB.
I unlocked my bootloader using the 6p Multitool. Thereafter I used my normal method of fastboot (Minimal ADB) to flash the boot.img from this thread http://forum.xda-developers.com/apps/supersu/wip-android-6-0-marshmellow-t3219344.
After that I flashed TWRP. Basically I followed the instructions here: http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928.
But my phone is not booting up.
It gives me this error:
Your device software cannot be checked for corruption. Please lock the bootloader."
But I tried that and it doesn't work. I tried from fastboot restoring to factory, but get the same message.
Please help me!

Did you check the enable oem unlocking in developer settings?
Sent from my Nexus 6P using Tapatalk

Yes. As I said, I achieved the unlock. Now I just can't get back into my phone or recovery or anything other than fastboot (where it says unlock)

isn't "Your device software cannot be checked for corruption. Please lock the bootloader." the new msg on boot when you are unlocked, and you have to wait ~10 secs before it startup ?

After that, I'm stuck on the Google screen. It just goes on and on. Left it for over 20 minutes at one point and it didn't get past it.
Edit: The multicolored animated google screen. The animation just keeps going and going.

Del.

Your issue might be due to the encryption of the phone. Take a look at this thread: http://forum.xda-developers.com/nex...recovery-twrp-2-8-7-0-touch-recovery-t3234976
From this thread:
NOTE: Decrypting data is not supported yet. The Nexus 6P will normally attempt to encrypt the device automatically on first boot. To use TWRP as you normally would, you will have to format data and install a slightly modified boot image with forceencrypt disabled. My Nexus 6P should arrive tomorrow and I will start working on decrypt once I get my hands on it.
Team Win Recovery Project 2.x, or twrp2 for short, is a custom recovery built with ease of use and customization in mind. Its a fully touch driven user interface no more volume rocker or power buttons to mash. The GUI is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.

Read through that thread. Part of the issue is that I don't know which variant (MDA89D & MDB08K) I have, or how to find that out seeing as I can't boot into the phone.
If I have the variant I may be able to fix this through the unified toolkit (though I'm not sure of that)

Did you ever fix this?

Try flashing the factory image and starting from scratch. You must have messed up somewhere. Re-download the boot.img from Chainfire's thread, maybe that was corrupt or something.

1. Download the MDB08K factory image (it's not a variant, it's a Marshmallow update) and unzip it.
2. Download the MDB08K boot.zip from Chainfire's modified boot.img thread
3. Download latest SuperSU beta zip
Wipe phone in TWRP, to include format data.
In bootloader, fastboot flash MDB08K
fastboot flash modified boot.img (from zip)
In TWRP, ADB sideload SuperSU
Reboot and it should perform normally.

kibmikey1 said:
1. Download the MDB08K factory image (it's not a variant, it's a Marshmallow update) and unzip it.
2. Download the MDB08K boot.zip from Chainfire's modified boot.img thread
3. Download latest SuperSU beta zip
Wipe phone in TWRP, to include format data.
In bootloader, fastboot flash MDB08K
fastboot flash modified boot.img (from zip)
In TWRP, ADB sideload SuperSU
Reboot and it should perform normally.
Click to expand...
Click to collapse
Thank you for your reply, but I can't get into TWRP either!! Any way for me to restore to factory or do the repairs from in flashboot without the restore?

I ran into the same issue last night trying to install TWRP. I'm still not sure how to get around it but I did get my phone back. you should be able to get to the bootloader (hold the power button until phone turns off, then hold vol up+vol down+power) once there use ADB fastboot to go back to stock.
this link will walk you through what you need. follow step 7.
http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
here it is as well:
How To Flash The Factory Images (And Return To Stock)
Prerequisites: unlocked bootloader (section 1).
Download the appropriate factory images for your model here.
Unzip the angler-xxxxxx-factory-xxxxxxxx (x's replace variables) into a directory on your PC (for this guide we'll use C:\angler\).
Once unzipped you should have a folder named angler-xxxxxx (x's replace variables). Open it and move the following files to a new directory named C:\angler\images\:
bootloader-angler-angler-01.31.img
radio-angler-angler-01.29.img
(Please note that radio and bootloader naming changes from build to build so the filenames and below commands will change with them)
Within C:\angler\angler-xxxxxx\ you'll see another zip archive named image-angler-xxxxxx, unzip the contents of that zip into the C:\angler\images\ folder we created before. Now within C:\angler\images\ you should have the following files:
android-info.txt
boot.img
bootloader-angler-angler-01.31.img
cache.img
radio-angler-angler-01.29.img
recovery.img
system.img
userdata.img
vendor.img
Boot into the bootloader and connect your phone to your PC via usb cable.
Open a command prompt from within your fastboot folder (navigate to where you have fastboot.exe located on your PC, shift + right click anywhere within that folder, select open command prompt here), enter these commands to flash:
Code:
fastboot flash bootloader C:\angler\images\bootloader-angler-angler-01.31.img
fastboot reboot-bootloader
fastboot flash radio C:\angler\images\radio-angler-m8994f-2.6.28.0.65.img
fastboot reboot-bootloader
fastboot flash boot C:\angler\images\boot.img
fastboot erase cache
fastboot flash cache C:\angler\images\cache.img
fastboot flash recovery C:\angler\images\recovery.img
fastboot flash system C:\angler\images\system.img
fastboot flash userdata C:\angler\images\userdata.img
fastboot flash vendor C:\angler\images\vendor.img

Thank you. I was eventually able to do tysonwald's suggestion. First I didn't know what my version was, so I couldn't.
At some point I was able to get into the phone with constant gapp errors, check it.
Now my phone is unlocked and rooted. But when I go to settings to security (and when I tried to set up my fingerprint) settings crashes. Any ideas?
There was still some issue. I wiped the phone with the above method again, did NOT set up twrp/root, and everything works. It was something about the custom boot image I guess. Any advice if I want to try to set it up again?

Problem solved. Needed to update to newer image before doing everything. Issue resolve from Heisenberg's thread. Thank you all!

I had the same damn issue last night. Thise bootleg instructions had me flashing build k boot.img on build D. Maybe i wasnt paying attention lol!

I have a very similar problem, I flashed the k boot img. and now I'm stuck in an endless bootloop any idea?

TeriusPR said:
I have a very similar problem, I flashed the k boot img. and now I'm stuck in an endless bootloop any idea?
Click to expand...
Click to collapse
Read thru this guide and follow the instructions to the T. http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928

I had a similar issue just now where my phone got stuck at the TWRP logo. Selecting the reboot option in download mode refused to remove it. I had to follow step 10 to get my phone back to stock. I'm afraid to try this again now

Is there anyway to know which version do i need to download? i bought the phone already bricked and i am trying to bring it back to life