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[TUTO+VIDEO] Unlock Bootloader-Flash Recovery-Root-Restore Back the N7 FLO- KK 4.4.4

OP philos64

28th July 2013, 11:34 AM   |  #1  
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This tutorial All In One is for all owners of the NEW NEXUS 7 FLO (2013 Edition). I've tried to be clear, helpful and simple


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POST #1 => [TUTO + VIDEO] AIO Unlock Bootloader, Flash Recovery (TWRP) and Root your Nexus 7 FLO

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POST #2 =>[TUTORIAL]Download Factory Images Nexus 7 FLO - Restore back STOCK with latest KK 4.4.4
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POST #3 => [HOW TO] FLASH MORE FASTER WHEN YOU USE FASTBOOT LINE COMMAND



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Quote:

Warning!
This guide and its guidelines are meant only and only for the new Nexus 7 "FLO" (2013).
Do not attempt to try this on the older Nexus 7 or any other device.
Applying this to any other variant might brick the device.
Read and understand the instructions carefully before proceeding any further.

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Pre-requisites:

THIS GUIDE IS ONLY FOR WINDOWS
1) This point is really important. You’re going to lose all your datas on the device including the internal storage. So back everything up.

2) Download and Install 7zip or any other archive manager as WinRAR etc...

3) Download and install Android SDK

OR

3Bis)Download The ADB and Fastboot Tools in the same Tool ==> platform-tools.zip - md5: 15e771613370afe3c70e0be1454d2ef1 - size: 346.8KB

4) Put these 3 files in where your fastboot folder is installed; ex => => disk C: root
Unzipped this file on the folder "platform-tools" and you will find 11 files:
- aapt
- adb
- AdbWinApi.dll
- AdbWinUsbApi.dll
- aidl
- dexdump
- llvm-rs-cc
- fastboot
- dx
- NOTICE
- source.properties


5) Enable USB Debugging Mode on the tablet to connect it with the computer and use Android SDK with it.
{ Press Menu =>> Settings =>> Applications. From there navigate and click on Development option then check the USB Debugging Mode.}
If you don’t see the Development Options, you'll need to open the Settings app and scroll down to the bottom. Once you get there, tap “About Phone”. Scroll to the bottom again, until you see the Build Number entry.
Now tap Build Number a total of seven times. You'll see friendly developer messages starting with the fourth tap. After the seventh, you'll see a message congratulating you for unlocking Developer Options. “Now you are a developer".

6) At least 70% battery power to avoid uncertain shutdowns during the process.

7) The tutorial is compatible only with the Nexus 7 wifi (2013) FLO.


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Quote:

Process to unlock bootloader of your Nexus 7 FLO

-1: Connect the Nexus 7 to the computer using USB cable.

-2: Open a Command Prompt window and type the following command to reboot the device into booltoader mode:
Code:
adb reboot bootloader
-3: Type the following command to lauch the unlock process:
Code:
fastboot oem unlock
-4: You will now be prompted with a dialogue to confirm the process, go through it.
Use the Volume buttons to highlight Yes and select it using the Power button

-5: The tablet will go back to the bootloader screen. Press Power button to select Start to reboot into the unlock device

Quote:

Before to install the TWRP recovery and applying the root, you need to download the latest version of the TWRP recovery and the latest version of SUPER-SU that you need to push to the root of your sd card - For downloading these files follow the links below

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Quote:

Process to install TWRP recovery on your Nexus 7 FLO

-1: Download the latest TWRP recovery image file
Download link- TWRP

-2: Open the folder where the recovery image file has been downloaded and rename your recovery "recovery-twrp" simply. Re-open your previous Command Prompt window.

-3: Type the following command to flash the recovery image file
Code:
fastboot flash recovery recovery-twrp.img
-4: The recovery will be flashed and the progress could be observed in the CMD window itself.

Note: To boot the Nexus tablet into Recovery, press the Volume keys (up/down) until Recovery Mode is displayed. Use the Power button to select it and the device will reboot into the TWRP recovery Mode.

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Quote:

Process to root your Nexus 7 FLO - Update

-1: Download the SuperSU root package for Nexus 7
or you can use Download link: CF-Auto-Root-flo-razor-nexus7.zip

Explanations for understand why you must use CF-Auto Root => Go to read here the Central Post

-2: Download the ZIP file (see the link above) and Extract the ZIP file

-3: Connect the tablet to your PC using USB cable.

-4:Boot your device in bootloader/fastboot mode. Usually this can be done by turning your device off, then holding VolDown+Power to turn it on.

-5:Connect your device to your computer using USB

-6: Open a new CMD window and type the following command:
For Windows
Code:
root-windows.bat
For Linux
Code:
chmod +x root-linux.sh
root-linux.sh
For Mac OS X
Code:
chmod +x root-mac.sh
root-mac.sh
Follow the on-screen instructions - watch both the computer and the device !

Note that if your device had not been unlocked before, this procedure will wipe all your datas !

And if you have some problem with the process, go to see
HERE


Now your Nexus 7 FLO running on Android 4.4.4. KitKat should have be rooted with latest TWRP recovery installed and bootloader unlocked.


If you need more help, following my OP and this video from @clozecall


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Quote:

ISSUES

Quote:

If you have some problem after to flash the recovery, and you stay stuck on during 5mn + You need to wipe data and factory reset on settings and normally all should be work perfectly after

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Quote:

USEFULL FILES:


Recovery_Stock_KK-4.4.4.img - Download link - Md5: 0ce33e5478a93f335f9be94c42057557 - size: 7.4MB ==> NEW

Recovery Stock -SS15QR.img - Download link

Recovery Stock -JSS15Q.img - Download link

Recovery_stock_JSS15J.img - Download link

Recovery_stock_ JRW66V - Download link

Google USB Drivers - md5: 1389bb2de0c9cacce27c76f1c71592ef - size: 8 MB

OEM USB Drivers

USB DRIVERS r_06 for Windows 7 & 8
Thanks to @clozecall for his video
and all members for their help




And don't forget to RATE FOR THIS THREAD - if it's helped you
"Thanks in advance
Last edited by philos64; 3rd July 2014 at 09:50 AM. Reason: Updated 24th June 2014
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28th July 2013, 11:45 AM   |  #2  
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Wink [TUTORIAL]Download Factory Images Nexus 7 FLO - Restore back STOCK
[TUTORIAL]Download Factory Images Nexus 7 FLO - Restore back STOCK - With latest version KitKat 4.4.4

Find your Factory image for your N7 FLO - KitKat KTU84P - Download Link - - is very useful if you need to restore back your device to Stock after any modification you’ve made. If you have rooted your N7 Flo, unlocked its bootloader, installed custom recovery and roms and finally you want decided to getting back to official firmware and then to get or accept future OTA updates again. It’s the best way to restore back your device to Stock.

Coming back to stock is also useful if you have some bugs (for fixing it), Bootloop, stuck in boot screen logo and freeeeezzziiiinnnngggg, etc....
But before to going back to stock, you need to read completly the tutorial and need to know
Your bootloader will be “LOCKED or UNLOCKED” when you want.


1 - Where I can can find the right Factory Image for my Nexus 7 Flo and which files I need for proceed ?
But first download and install the necessary files prior to execute this properly. Download the full factory image corresponding to your exact mode which includes the full system, bootloader, recovery, kernel (boot.img).
Unpack the TGZ Version (tar/gz) or Zip Version Archive into its own directory. I use 7-Zip, but you can use any tool that reads gz and tar.


  1. Factory Images "razor" for Nexus 7 [2013] (Wi-Fi) - 4.4.4 (KTU84P) - Download link

    If you have already installed those files, just check theirs.
  2. Java Runtime Environment.
  3. Android SDK | Android Developers.
  4. Platform tools
  5. Fastboot files

2 - PREREQUISITES
First make sure that your battery is fully charge 100% and BACKUP ALL YOUR PERSONNEL DATA

[1] - Make sure you have USB debugging turned on. For security purposes, you can turn it off after we're done

[2] - Plug-in USB cable and If you are booted into Android, open a command prompt to your ADB and Fastboot directory,

[3] - In case you are not unlock, you need to unlock your bootloader, enter the following commands:
Code:
fastboot oem unlock
If your tablet hasn't already rebooted automatically, type:
Code:
fastboot reboot
NOW WE ARE READY FOR PROCEED TO RETURN STOCK

3 - RUNNING FACTORY IMAGE

If you want to keep your data intact, don't skip this step, (if you do your data will be wiped )

With your text editor (for me it's Notepad ++,
[1] - Edit (be careful not to run it by accident instead of editing)
[2] - flash-all.bat (if you're on Windows)
[2a] - flash-all.sh (Mac, Linux)
[2b] - and remove "-w" from the fastboot update command

Quote:

For example, if the line reads fastboot -w update image-razor-ktu84p.zip, it should now read: fastboot update image-razor-ktu84p.zip. The -w option instructs fastboot to wipe data.

[3] - Reboot into the bootloader and run the appropriate flash-all script:
Code:
flash-all.bat

Done, your Nexus 7 Flo is now coming back and running Stock Android KK 4.4.4




In Case you want to come back completely to Stock, for warranty or security purpouses, you need to re-lock your bootloader now.
Enter the following commands
Code:
fastboot oem lock
If your tablet hasn't already rebooted automatically, type:
Code:
fastboot reboot
Done!






And don't forget to RATE FOR THIS THREAD - if it's helped you and eventually click to "Newsworthy Thread? "Thanks in advance
Last edited by philos64; 24th June 2014 at 10:19 AM. Reason: Update 24th June 2014
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28th July 2013, 11:46 AM   |  #3  
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Reserved
Last edited by philos64; 18th December 2013 at 01:04 PM.
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28th July 2013, 07:55 PM   |  #4  
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Post [HOW TO] FLASH MORE FASTER WHEN YOU USE FASTBOOT LINE COMMAND and FILES
FLASH MORE FASTER WHEN YOU USE FASTBOOT LINE COMMAND and FILES


If you have got a problem with your adb or fastboot or recovery....it's very simply and faster
use this:
Download this file "fastboot.zip" or this tool : platform-tools.zip - md5: 15e771613370afe3c70e0be1454d2ef1 - size: 346.8KB
Install this file somewhere in one folder which is named "fastboot" on your PC
=> disk C: root
Unzipped this file on the folder "fastboot" and you will find 3 files:
- adb.exe
- AdbWinApi.dll
- fastboot.exe


OR

Unzipped this file on the folder "platform-tools" and you will find 11 files:
- aapt
- adb
- AdbWinApi.dll
- AdbWinUsbApi.dll
- aidl
- dexdump
- llvm-rs-cc
- fastboot
- dx
- NOTICE
- source.properties


and when you need to push something by the bootloader, you can use it.
Don't forget to push on this folder the file that you need. For exemple: boot.img or a recovery.img, etc...

CD to where your fastboot or platform tools were installed
The line command is :
Code:
C:\Users\R2D2>cd c:\platform-tools
Code:
C:\platform-tools>
OR
Code:
C:\Users\R2D2>cd c:\fastboot
Code:
C:\fastboot>
Enter
Code:
C:\fastboot>fastboot flash recovery recovery.img
Enter
If you want to flash the "recovery.img" file

************************************************** ****************
************************************************** ****************

If you want to know all lines of command
Code:
c:\fastboot>fastboot
Code:
usage: fastboot [ <option> ] <command>

commands:
  update <filename>                        reflash device from update.zip
  flashall                                 flash boot + recovery + system
  flash <partition> [ <filename> ]         write a file to a flash partition
  erase <partition>                        erase a flash partition
  getvar <variable>                        display a bootloader variable
  boot <kernel> [ <ramdisk> ]              download and boot kernel
  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it
  devices                                  list all connected devices
  continue                                 continue with autoboot
  reboot                                   reboot device normally
  reboot-bootloader                        reboot device into bootloader
  help                                     show this help message

options:
  -w                                       erase userdata and cache
  -s <serial number>                       specify device serial number
  -p <product>                             specify product name
  -c <cmdline>                             override kernel commandline
  -i <vendor id>                           specify a custom USB vendor id
  -b <base_addr>                           specify a custom kernel base address
  -n <page size>                           specify the nand page size. default: 2048
Last edited by philos64; 18th December 2013 at 01:04 PM.
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28th July 2013, 08:41 PM   |  #5  
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From this part of your procedure:
"-5: The tablet will go back to the bootloader screen. Press Power button to select Start to reboot into the unlock device

Note: Those who wish to install TWRP and root the device further, do not reboot the device. Leave the device at the same screen."

I still say you have to start and boot before you install TWRP. If you don't you get 0 MB Internal Storage on screen and twrp needs password. Can you verify this?

I had to restore my system.img and start over.

Maybe your version of TWRP does not require a reboot (Start) after OEM unlock?
Last edited by androidfr33k; 28th July 2013 at 09:12 PM.
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28th July 2013, 11:26 PM   |  #6  
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I've always used clockwork on my phones... can you use clockwork in place of twrp on the nexus 7 flo?
29th July 2013, 02:25 AM   |  #7  
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Bricked my N7
Not new to flashing, but I made a huuuuuuuuge mistake today. I accidently flashed the wrong recovery image for the 2012 N7 (yeah, I'm an idiot). I can boot into fastboot and recovery mode, but it fails to mount the sd card so I can't do **** anymore. Can't even get it back to stock t this point Any suggestions? I'm on a mac, but have access to PC. Have tried both CWM and TWRP. TWRP just gives me the password screen and 0mb storage. Can't figure out how to get around it or get my storage mounted. Help!
29th July 2013, 12:59 PM   |  #8  
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Stuck in boot screen
"I still say you have to start and boot before you install TWRP. If you don't you get 0 MB Internal Storage on screen and twrp needs password. Can you verify this?

I had to restore my system.img and start over."

Androidfr33k, can you specify how to restore system.img? I also do the following steps without rebooting, now I'm stuck in the boot screen.

Thanks in advanced!
29th July 2013, 01:50 PM   |  #9  
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Quote:
Originally Posted by Gareee

I've always used clockwork on my phones... can you use clockwork in place of twrp on the nexus 7 flo?

For the moment, TWRP recovery is the best way for most of my devices.
I've used CWM during a long time with my old devices (Htc Hero - Desire Z) - for my Desire S, I've used 4EXT recovery and now for all devices, it's TWRP
I'm waiting a CWM recovery for see.
But it's just my advice

Quote:
Originally Posted by Wwdcc

"I still say you have to start and boot before you install TWRP. If you don't you get 0 MB Internal Storage on screen and twrp needs password. Can you verify this?
I had to restore my system.img and start over."
Androidfr33k, can you specify how to restore system.img? I also do the following steps without rebooting, now I'm stuck in the boot screen.
Thanks in advanced!

I've updated the guide, so I advise you to reboot after unlock your Nexus 7, in order to validate the release.
29th July 2013, 02:30 PM   |  #10  
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Quote:
Originally Posted by philos64

For the moment, TWRP recovery is the best way for most of my devices.
I've used CWM during a long time with my old devices (Htc Hero - Desire Z) - for my Desire S, I've used 4EXT recovery and now for all devices, it's TWRP
I'm waiting a CWM recovery for see.
But it's just my advice



I've updated the guide, so I advise you to reboot after unlock your Nexus 7, in order to validate the release.

Thanks philos64. My problem now is that I couldn't even boot into the OS, I can get into Bootloader mode or Recovery mode, but I couldn't factory reset (says "failed") or boot pass the Nexus screen. (stuck there for more than 15 minutes).

I'm sort of a noob, any help will be appreciated.

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