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Nexus 7 Bricked??/Broken

Nexus 7 was rooted,unlocked bootloader and was running paranoid anroid 3.90+ i think . i plugged it into the computer to get a new rom using nexus root toolkit v1.7.2. i was asked to update a few things, so i clicked yes. i then tried to flash stock + unroot and chose 4.3 cause i wanted to try the new OS. but i guess something happened because when i turned my nexus 7 back on i was stuck on the load screen (GOOGLE image with a unlocked lock) i could cycle thru a few options using volume keys (start,recovery,power off) .all of them seemed useless as they would just bring me back to where i was.when clicking start "booting failed" come up on the upper left side. when trying to flash stock +unroot using NRT i get up to the sending "bootloader" part and my nexus 7 just freezes, how do i fix this. please and thanks

download the factory image from the google factory image and extract the archive.
try flashing the bootloader manualy with fastboot.
locate your fastboot binary and copy the bootloader image to that directory.
open a commandline in that directory and type
fastboot flash bootloader name-of-bootloader.img
after that you can try to flash the whole factory image with the flash-all.sh script.

Simple
dieselmonkeyy said:
i could cycle thru a few options using volume keys (start,recovery,power off) .all of them seemed useless as they would just bring me back to where i was.when clicking start "booting failed" come up on the upper left side.
Click to expand...
Click to collapse
Boot failed??? That's a bad flash of the stock ROM. I had the same problem at my first attempt trying to flash Stock ROM, but don't worry! Let's do this:
WARNING: Before you continue you are accepting that I'm not responsible of anything can happen to your Nexus and your battery is fully charged.
When you download the stock ROM you have to uncompress the zip file. You will find the bootloader and another zip.
Uncompress that zip file, put fastboot program, the bootloader and the files together.
Then start your Nexus into bootloader mode, connect it to your PC, open a console (cmd for Windows, Terminal for Linux and Mac OS X) and type this:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
WARNING: Your Nexus is FULLY EMPTY!!! Don't reboot it because it can get a full brick (It will not turn on any more).
Now type this:
fastboot flash bootloader bootloader-grouper-X.XX.img
NOTE: Replace X.XX with your version.
Now type:
fastboot reboot-bootloader
Your Nexus will reboot.
Type this:
fastboot flash boot boot.img
fastboot flash cache cache.img
fastboot flash recovery recovery.img
fastboot flash system system.img #Will take a very long time. DON'T INTERRUPT THE PROCESS!!!!!
fastboot flash userdata userdata.img
Now reboot again with:
fastboot reboot-bootloader
Re-unlock bootloader to get a full wipe:
fastboot oem lock
Reboot again:
fastboot reboot-bootloader
And then unlock the bootloader:
fastboot oem unlock
Press "Yes" to the petition screen and reboot:
fastboot reboot
Ready the Nexus!
I had the same problem and I did this.
I hope I can help you.
Sorry for my bad English. I'm from Argentina and I'm learning.
Well,
Good luck!

MlucianoEze said:
Boot failed??? That's a bad flash of the stock ROM. I had the same problem at my first attempt trying to flash Stock ROM, but don't worry! Let's do this:
WARNING: Before you continue you are accepting that I'm not responsible of anything can happen to your Nexus and your battery is fully charged.
When you download the stock ROM you have to uncompress the zip file. You will find the bootloader and another zip.
Uncompress that zip file, put fastboot program, the bootloader and the files together.
Then start your Nexus into bootloader mode, connect it to your PC, open a console (cmd for Windows, Terminal for Linux and Mac OS X) and type this:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
WARNING: Your Nexus is FULLY EMPTY!!! Don't reboot it because it can get a full brick (It will not turn on any more).
Now type this:
fastboot flash bootloader bootloader-grouper-X.XX.img
NOTE: Replace X.XX with your version.
Now type:
fastboot reboot-bootloader
Your Nexus will reboot.
Type this:
fastboot flash boot boot.img
fastboot flash cache cache.img
fastboot flash recovery recovery.img
fastboot flash system system.img #Will take a very long time. DON'T INTERRUPT THE PROCESS!!!!!
fastboot flash userdata userdata.img
Now reboot again with:
fastboot reboot-bootloader
Re-unlock bootloader to get a full wipe:
fastboot oem lock
Reboot again:
fastboot reboot-bootloader
And then unlock the bootloader:
fastboot oem unlock
Press "Yes" to the petition screen and reboot:
fastboot reboot
Ready the Nexus!
I had the same problem and I did this.
I hope I can help you.
Sorry for my bad English. I'm from Argentina and I'm learning.
Well,
Good luck!
Click to expand...
Click to collapse
what do i type into cmd inorder to be able to type
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
and get it to work. im a noob . thanks in advance

You have to be in the folder with fastboot inside else those commands will not work.
It will be easier if you put the images extracted from the zip into the zip together with the fastboot program.
If you don't understand yet I'll try to be more specific.
Sent from my Nexus 7 using xda app-developers app

dieselmonkeyy said:
what do i type into cmd inorder to be able to type
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
and get it to work. im a noob . thanks in advance
Click to expand...
Click to collapse
It can be intimidating... and the so-called tool-kits don't help you learn
I assume you are using Windows.
follow the unzip instructions from the previous poster. (not quoted here). note the directory.
find the directory containing your android tools... ADB.exe and FASTBOOT.exe.
transfer your unzipped files to this directory. Open your CMD prompt window and change to this directory if necessary.
plug in your Nexus.
type fastboot device at the prompt. MAKE SURE YOUR NEXUS 7 is listed (serial number)
proceed with the complete instructions from the previous poster.
that should do it.

YES!!!
thanks alot for the instructions, it worked!!! i hope people use ur instructions as reference if they have the same problem. THANKS ALOT!!!

dieselmonkeyy said:
thanks alot for the instructions, it worked!!! i hope people use ur instructions as reference if they have the same problem. THANKS ALOT!!!
Click to expand...
Click to collapse
I'm glad the problem is solved. Do not forget to click the THANKS button.
Sent from my Nexus 7 using xda app-developers app

Hello. My brother's Nex 7 is also has this issue. I cannot follow any of the steps as it gets stuck on erasing any of the partitions. I tried erasing those partitions in any order and they still get stuck. His device was stock and bootloader locked too. When I try to unlock the bootloader, it gets stuck as well at the erasing userdata part. I suspect a bad memory chip. Anyone else experience this?

Yes, mine is sticking on the (bootloader) erasing userdata on bootloader unlock as well.
It also sticks on any fastboot ERASE command.
Factory reset had a bunch of errors and no longer comes up. none of the FLASH commands work because the BOOTLOADER is locked.
And since it freezes on the unlocking bootloader commands I believe I am screwed.
This was a factory installed, never flashed, unlocked or rooted Nexus 7 wifi 2nd gen. After installing the 4.4.2 that popped up it loaded once then crashed and never loaded again
I have tried every tool I can find. They all stick on the erase part.

jophisdrazin said:
Yes, mine is sticking on the (bootloader) erasing userdata on bootloader unlock as well.
It also sticks on any fastboot ERASE command.
Factory reset had a bunch of errors and no longer comes up. none of the FLASH commands work because the BOOTLOADER is locked.
And since it freezes on the unlocking bootloader commands I believe I am screwed.
This was a factory installed, never flashed, unlocked or rooted Nexus 7 wifi 2nd gen. After installing the 4.4.2 that popped up it loaded once then crashed and never loaded again
I have tried every tool I can find. They all stick on the erase part.
Click to expand...
Click to collapse
Send your device for repair. My brother did so. My suspicions were correct. A faulty chip. They replaced the whole board, according to my brother.
Sent from my Nexus 7 using Tapatalk

[Q] Bootloop on any ROM

Hi guys,
In front of me, I have my friend's very stubborn LG Nexus 4. It's about 7 months old and a month ago, he dropped it and cracked the screen's glass (and the case's glass back as well). The phone still worked fine for a few weeks after that after that, but the touchscreen was not always responding correctly. He decided to give it to a service center for repair, but they returned it in a few days claiming there's a bootloop and they won't repair it (even if he paid) since the phone wasn't purchased in the same country. (Such BS, isn't it?)
An easy thing to fix, I thought, after fixing all sorts of bootloops on my SGT, SGS1 and my other friend's SGS2. Turns out, it's anything but.
Regardless of whether I flash stock following this guide or CM11 following the CM wiki, the phone is stuck on boot animation. 4 swirling colored balls for stock or an arrow rotating aroud Cid in case of CM11.
I have tried both stock recovery and CWM. I have tried wiping cache, data, Dalvik cache, any combination of only one or two or all three, tried waiting for an hour on first boot (someone suggested the first boot can take up to 15 minutes... find that hard to believe since even my sluggish SGS1 will manage in 3 minutes tops after a flash, but still tried) - all in vain. All I get is the screen's backlight level suddenly jumping up about 5 minutes into the boot process, as if the "Welcome to Android!" menu is about to appear - but it's still bootlooping until the battery runs out. (It gets quite warm too.)
TL;DR Nexus 4 flashes successfully with both stock 4.4.2 and CM11 but bootloops no matter what.
What can I do at this point to troubleshoot it? I'm out of ideas.

Its possible that this is a hardware issue but for now what I would try is download latest stock, Google search
android factory images
And choose the latest for your device, KOT49H
Now boot to fastboot
fastboot erase system -w
fastboot erase boot
fastboot erase recovery
Now
fastboot flash bootloader nameofbootloader.img
fastboot flash radio nameofradio.img
Now either double click the flashall.bat or I prefer just extracting the rest an manual flash
fastboot flash system system.img
fastboot flash data userdata.img
fastboot flash cache cache.img
fastboot flash boot boot.img
Now
fastboot reboot
If this doesn't work than a good chance of hardware issue from all the falls, if it does work then my guess is you want to root it so go back to fastboot and flash the latest twrp or cwm recovery
Then either boot to recovery and flash su or wipe all and flash a custom ROM
Best of luck!
Sent from my Nexus 4 using XDA Premium 4 mobile app

demkantor said:
Its possible that this is a hardware issue but for now what I would try is download latest stock, Google search
android factory images
And choose the latest for your device, KOT49H
Now boot to fastboot
fastboot erase system -w
fastboot erase boot
fastboot erase recovery
Now
fastboot flash bootloader nameofbootloader.img
fastboot flash radio nameofradio.img
Now either double click the flashall.bat or I prefer just extracting the rest an manual flash
fastboot flash system system.img
fastboot flash data userdata.img
fastboot flash cache cache.img
fastboot flash boot boot.img
Now
fastboot reboot
If this doesn't work than a good chance of hardware issue from all the falls, if it does work then my guess is you want to root it so go back to fastboot and flash the latest twrp or cwm recovery
Then either boot to recovery and flash su or wipe all and flash a custom ROM
Best of luck!
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
As I said, I've already tried CWM, custom ROM (CM 11 - which required rooting, which I did) and followed the guide I linked for flashing the latest stock ROM I got from Google. The only thing I haven't tried is the fastboot erase commands - thanks for suggesting that, I will try them ASAP before trying to flash stock again though I don't have much hope left

Give it a shot, if you do everything in this order you will be good if its a software issue, if it doesn't work than possibly hardware
Sent from my Nexus 4 using XDA Premium 4 mobile app

[Q] Nexus 4 Stock on logo

Hi Guys...
My nexus 4 Stocked on logo last friday, I try to recovery, wipe cache, and nothing.
So I learn that some devices of Nexus 4 after update to 4.4 are having this problem.
By the way I try to flashtool on a 4.3 version, the system was installed, but I am still stocked on logo...
Anyone have any Idea, how I can fix this?
I have no access to adb, only by flashtool
here are the way that I installed the old stock version:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader D:\Nexus\SDK\android-sdk-windows\platform-tools\bootloader-mako-makoz20i.img
fastboot reboot botloader
fastboot flash radio D:\Nexus\SDK\android-sdk-windows\platform-tools\radio-mako-m9615a-cefwmazm-2.0.1700.84.img
fastboot reboot bootloader
fastboot -w update D:\Nexus\SDK\android-sdk-windows\platform-tools\image-occam-jwr66y.zip
Thanks btw

Have you done a factory reset in the stock recovery?
Sent from my Nexus 5 using XDA Free mobile app

I tried to wipe cache and delete all user data, but nothing works.
I read on net that I have to be pressing the volume(-) button on google animation to make a factory reset, this never worked for me....
I was thinking in install a custom firmware to try to fix this...
Do I have to hcange the bootloader, or a stock bootloader will be enough...
for example I wanna try this:
[ROM] NEXUS 5 PORT 4.4.2 KOT49H odexed 10/12/2013
http://forum.xda-developers.com/nexus-4/development/rom-nexus-5-port-4-4-2-kot49h-odexed-10-t2507021
But the problem that as my nexus are not working I have no access to adb commands, so how I can fix that?

Just by now i was able to sideload to flash my phone
So I tried a old 4.2.2 google version.
But I have a failure:
" Signature verification failed"
Why this failure happens if I am using a oficial stock from google?

Dark_Hyoga said:
Just by now i was able to sideload to flash my phone
So I tried a old 4.2.2 google version.
But I have a failure:
" Signature verification failed"
Why this failure happens if I am using a oficial stock from google?
Click to expand...
Click to collapse
Are you trying to flash a rom in the stock recovery? It won't work, you need a custom recovery. You can try to install a custom recovery by flashing an image file in fastboot. Or you can flash the factory image in fastboot and start all over. I'm not sure what stage your device is on right now
Sent from my Nexus 5 using XDA Free mobile app

I installed the most old version 4.2.2 of stock version by flash mode, I dont know why, but on versions 4.3 and 4.4 the precess always stops on some part of the flastool.. thats why I try the sideload.
4.2.2 was ok,
now I finally get over the stuck logo and can access the phone, but the phone its nothing find the network, But I am still working on it.

Now I understand Why......
I lost my IMEi on the process
*#06# shows no IMEI...
Now I have to find a tool to burn the IMEI again...
Anyone knows some, I just find the OCtoplus, but I have to buy....
There is one free?

Warning: Update to LRX21Q fails when rooted.

Hi all,
on my Nexus 9, update to LRX21Q failed: After reboot, the android icon was shown with "error" below.
I suppose, update failed as my system is rooted with the method Chainfire posted in the development forum.
After an additional reboot, the previous firmware is still shown. The system does not offer the update anymore but claims to be up-to-date.
Any hints? Thanks in advance.

Maybe it's the modified kernel from Chainfire. Try to get back to the stock kernel and try again.

Download the factory image, flash recovery, boot, system & vendor.
Your software will be updated and you won't lose any data. You will lose root however.

I got the same error from OTA with no root. Only had 9 for 2 days, got OTA rite out of box no issue.
Yesterday for new build i get little error android icon upon reboot/install.

Obviously, something that is being changed by the "root" process is being checked DURING the update process. Probably a checksum on the boot partition. If it doesn't match, it bails on the update.
The likely reason for this is they acknowledge that you don't want to lose your root.
All it means is that you need to do the update manually.
It may be possible for a modified recovery to bypass this check, or possibly even be made to auto-root new boot images.

Thanks, guys. Will try as suggest above and post results.
Update: worked perfectly, needed to root again though.

StuMcBill said:
Download the factory image, flash recovery, boot, system & vendor.
Your software will be updated and you won't lose any data. You will lose root however.
Click to expand...
Click to collapse
has anyone tried this? i would like to update without losing data...

Flash through fastboot and you will be fine. Thats what I did then rerooted with CF autoroot

mk92595 said:
Flash through fastboot and you will be fine. Thats what I did then rerooted with CF autoroot
Click to expand...
Click to collapse
What's the fastboot command for the img? Do you flash as boot, system, etc?

zeebone said:
What's the fastboot command for the img? Do you flash as boot, system, etc?
Click to expand...
Click to collapse
Fastboot flash bootloader bootloader.img
Fastboot reboot-bootloader
Fastboot flash system system.img
Fastboot reboot-bootloader
Fastboot flash boot boot.img
Fastboot reboot-bootloader
Fastboot flash vender vendor.img
Fastboot reboot-bootloader
Fastboot erase cache
Fastboot flash cache cache.img
Fastboot reboot
Not sure if I forgot one but I think thats all of them

mk92595 said:
Fastboot flash bootloader bootloader.img
Fastboot reboot-bootloader
Fastboot flash system system.img
Fastboot reboot-bootloader
Fastboot flash boot boot.img
Fastboot reboot-bootloader
Fastboot flash vender vendor.img
Fastboot reboot-bootloader
Fastboot erase cache
Fastboot flash cache cache.img
Fastboot reboot
Not sure if I forgot one but I think thats all of them
Click to expand...
Click to collapse
Should there be a - sign between reboot and bootloader .. And is fastboot flash vender or vendor... Just making sure .

pantmunu said:
Should there be a - sign between reboot and bootloader .. And is fastboot flash vender or vendor... Just making sure .
Click to expand...
Click to collapse
Yes there should be a - sign and vendor. Sorry i'm not home so I don't have the files near me.

mk92595 said:
Yes there should be a - sign and vendor. Sorry i'm not home so I don't have the files near me.
Click to expand...
Click to collapse
Thank you sir .

Where can i find the images for download. Thx

Google for nexus factory image.
Sent from my Nexus 9 using XDA Premium HD app

Update failed on me too. Completely stock

UPDATE:
Apparently *some* devices didn't get the recovery updated with the last update (LRX21L).
The new update (LRX21Q) requires the newer version of the recovery to install.
Google really messed up the launch of the Nexus 9 with all the HW/SW quality control issues
Serious f#ck-up from Google really

Interesting thing I noticed: I restored factory images manually in order to unroot and the OTA was no longer available. I verified I was still running on L. I manually installed the update and it went in just fine.
Now waiting on the root package to be updated for the Q kernel. You can re-root but you will be running on the L kernel, not the Q kernel.

maarten08 said:
Update failed on me too. Completely stock
Click to expand...
Click to collapse
My too fck Google

Mine failed and Im not even rooted
And im not sure if it did the update as its not showing a new one. Im on L

Nexus Player Rom help

Hi im having problems here with my nexus player
i purchased and used this since 3year with custom AOSP android lollirock that i found on this forum how to install in the begining when i purchased it now since there are newer version of android and app stop working correctly on it i wanna return to the stock rom
what it did is after booting into fastboot and running those command using google official rom
fastboot erase boot
fastboot erase recovery
fastboot erase system
fastboot erase cache
fastboot flash bootloader (bootloader filename)
fastboot reboot-bootloader
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash cache (there were no cache.img in the google official rom package so i leave it like this)
fastboot reboot
my nexus bootloader is in UNlocked state, i remeber unlocked it the first time i flash the original rom to install the lollirock one
the device rebooted and now im stuck in the bootloop of circle turning in the screen
i did the exact samething trying to install a older version of the rom (after i read on the internet that the 8.00 was sending people who never messed around with fastboot and just using OTA to update into this samebootloop)
i got the same exact problem using an older version of the google official rom 7.1.2 i try i think
then i tried to reinstall AOSP custom 7.1 of android that i found on the forum of zulu99 he tell to
fastboot flash boot boot.img
fastboot flash system system.img
fastboot -w (and i noticed that when i run this fastboot return me and error saying that the file is missing (cannot generate image for userdata)
anyone know what i can do from here ?
im able to get into fastboot no problem holding the button under the device before i plugged in the power cord
im pretty a beginner using ADB and flashing android roms so i have no clue what im missing here but i guess its something due to the fact that ivd run fastboot erase cache.img in the begining !?!?
Please any help would be greatly appreciated

I always used the nexus root tool kit for everything.
http://www.wugfresh.com/nrt/