====== Google Nexus 7 ======

<WRAP center round alert 60%>
I don't take any responsibility for bricked or destroyed hardware. Also, some actions described here 
may void your warranty. You have been warned!
</WRAP>

All information here is related to 2012 version of Google Nexus 7 manufactured by ASUS and how to do various things 
with, or to, it from GNU/Linux. 99% of information here can be found on intranets. These are, pretty much, personal notes. 
Respect to all those people for all work they've done!

Speaking of which, here are some links:

  * [[http://grey-olli.livejournal.com/697276.html|unlocking boot loader]] by grey_olli
  * [[http://grey-olli.livejournal.com/697453.html|replacing recovery image]] by grey_olli
  * [[http://forums.androidcentral.com/google-nexus-7-2012-rooting-roms-hacks/200444-guide-release-kraken-rooting-hacking-your-nexus-7-a.html|rooting nexus 7]] summary by dmmarck with links to guide and video. Beware, though, as it has obfuscated links for non-registered users(which I think, sucks)


===== Hardware =====

Detailed information about hardware can be found at [[https://en.wikipedia.org/wiki/Nexus_7|wiki]]. 
I see no reason to duplicate this information.

  * CPU - Nvidia Tegra 3 T30L ARM Cortex-A9, quad-core, 1.2GHz
  * GPU - Nvidia ULP GeForce, twelve-core, 416MHz

===== Unlock boot loader and root =====

I didn't put this under How to for couple reasons - it would be lost there and unlocked boot loader is building block 
for pretty much everything.


==== Unlock boot loader ====

<WRAP center round important 60%>
Unlocking boot loader will wipe all your data. Therefore, you're advised to backup your data before proceeding further.
</WRAP>

  * you need Android SDK to get ''adb'' and ''fastboot''. Look for ''adt-bundle-linux-x86_64''. Note, however, despite it's 2013, "compat" libs are still required by 64bit version(what a shame!). This is covered by installing ''ia32-libs'' on Ubuntu. I don't know about other distros.
  * enable USB debug mode by:
    * go into //Settings// -> //About tablet// and click on //Build number// seven times
    * go into //Settings// -> //Developer options// and enable //USB debugging//
  * ''# ./adb devices''

<code>
List of devices attached 
015d46d948101e11        device
</code>

  * ''# ./adb reboot-bootloader'' or, I guess, this would do too: power off Nexus 7, hold simultaneously buttons //Volume Down//, //Home// and //Power//
  * ''# ./fastboot oem unlock''
  * press //Power// button to unlock boot loader


==== Replace recovery image ====

  * enable //USB debugging//, if you haven't already
  * ''# ./adb devices''
  * ''# ./adb reboot-bootloader''
  * ''# ./fastboot devices'' - if it doesn't list your Nexus 7, you can't continue
  * download clockworkmod recovery image [[http://www.clockworkmod.com/rommanager|here]] - based on version of Nexus 7 you have, choose either WiFi or GSM
  * ''# ./fastboot flash recovery <path_to_image>''
  * ''# ./fastboot erase cache''
  * use //Volume Down/Up// buttons to choose //Recovery mode// and //Power button// to boot into recovery mode
  * once in ClockworkMod
    * go into //mounts and storage// and mount /system
    * also, I think I had to format /cache partition(?)
    * go into //backup and restore// and //backup// and "create image zip"
    * you get get these files off the device by ''# ./adb pull <remote_file> <local_file>'' - highly recommended for later use, resp. restore
    * you'll be asked on exit whether to install ClockworkMod permanently or not - yes, to keep; no, to use only once. This can be reversed via backup/image(?)


==== Get root ====

  * boot into ClockworkMod recovery image
  * get [[https://plus.google.com/+Chainfire/posts/Jkuu84odnx6|SuperSU]]
  * push SuperSU on Nexus 7, eg. ''# ./adb push <path_to_SuperSU> /sdcard/''
  * in ClockworkMod, ''install zip'' -> ''choose zip from sdcard'' and locate SuperSU
  * reboot device and you should have SuperSU icon in your menu


===== How to ... =====


==== Enable developer menu ====

  - Go to //Settings// -> //About tablet//
  - Click on //Build number// seven times


==== Enable USB debugging ====

  - Go to //Settings// -> //Developer options//
  - enable //USB debugging//


==== Change USB connection type ====

  - Go to //Settings// -> //Storage//
  - open //USB computer connection// menu(three vertical dots in the right top corner of the screen)
  - choose either MTP or PTP mode


==== Transfer files between 'droid and Linux ====

I've been using [[https://github.com/hanwen/go-mtpfs|go-mtpfs]] to transfer files between 'droid and Linux.


===== Alternatives to 'droid =====

FIXME


==== Arch Linux ====

  * [[https://docs.google.com/document/d/1G9vF5v2TN2c6ocyb_hmD1ve7OK4GdCP84rfaXgiLmB4/edit|How to install Arch Linux on Nexus 7]]
  * [[http://forum.xda-developers.com/showthread.php?t=2368304|XDA Dev forum thread related to Arch Linux on Nexus 7]]


==== Ubuntu ====

  * [[https://wiki.ubuntu.com/Nexus7/Installation]]


===== Links =====

  * [[https://wiki.ubuntu.com/Nexus7
  * [[http://www.nexus7tablethelp.com/2012/07/connect-nexus-7-to-linux-via-mtp-using.html]]
  * [[http://thegreyhats.blogspot.cz/2012/12/nexus-7-file-transfer-with-linux-via-usb.html]]
  * [[https://wiki.archlinux.org/index.php/MTP]]
  * [[https://sourceforge.net/projects/libmtp/]]
  * [[https://github.com/hanwen/go-mtpfs]]
  * [[http://hanwen.home.xs4all.nl/public/software/go-mtpfs/]]
  * [[http://grey-olli.livejournal.com/697276.html]]
  * [[http://forums.androidcentral.com/google-nexus-7-2012-rooting-roms-hacks/200444-guide-release-kraken-rooting-hacking-your-nexus-7-a.html]]
  * [[http://forums.androidcentral.com/google-nexus-7-2012-rooting-roms-hacks/189900-guide-mac-pc-linux-4-2-unlock-root-flash-recovery.htm]]