[GUIDE/TUTORIAL/HOWTO] Google Nexus 7 2012 stock to Android 7.1
- Thread starter djibe89
- Start date
Hi, I have a dedicated tutorial for 2013 which is far better: https://xdaforums.com/t/guide-tutorial-howto-google-nexus-7-2013-stock-to-android-12.4275457/
hello great instructions thanks
on tilapia tab
I don't know how I got lost but after installing lineage I get a lot of errors in TWRP, red lines and errors complaining about folders missing
The tablet however, boots in lineage after the animated logo and welcome android screen but many notifications appear about calendar, time, and lots more stopped working preventing boot. sometimes it just gets stuck on lineage animated logo.
any idea how I can sort it out? kindly
when I try installing OS again it says "no partition selected to restore" but I think I wiped the partition...I don't know just guessing
on tilapia tab
I don't know how I got lost but after installing lineage I get a lot of errors in TWRP, red lines and errors complaining about folders missing
The tablet however, boots in lineage after the animated logo and welcome android screen but many notifications appear about calendar, time, and lots more stopped working preventing boot. sometimes it just gets stuck on lineage animated logo.
any idea how I can sort it out? kindly
when I try installing OS again it says "no partition selected to restore" but I think I wiped the partition...I don't know just guessing
Last edited by a moderator:
must I redo all this?
Select Dalvik / ART Cache, System, Cache, Data, Internal Storage and Swipe to Wipe.
Tap on Back button (to Advanced Wipe Menu).
Select /cache partition > Repair or Change File System > Change File System > F2FS, Swipe.
Go Back and back to Advanced Wipe Menu.
Select /data partition > Repair or Change File System > Change File System > F2FS, Swipe.
Tap on Home button > Reboot > Recovery > Swipe to Reboot
hi downloaded this as your previous post BiTGApps-arm-7.1.2-v1.8_signed.zip
or should I use OpenGApps Pico + gapps-config.txt ?
yes I just did the whole thing again ...keep getting this and can't complete the installation
no installation completes in twrp., I copied lineage, OpenGApps Pico + gapps-config.txt + magisk, then tried again with no magisk. when reboots 1st time I get this and can't get in in android
Well I solved it like this: did the whole procedure again, then I changed cache and data partitions to ext4 and rechanged them to F2FS and copied files and everything went smooth. thanks anyway for your help. I leave this experience here in case anyone experiences this
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6[GUIDE/TUTORIAL/HOWTO] Google Nexus 7 2012 stock to Android 7.1
[GUIDE/TUTORIAL/HOWTO] Google Nexus 7 2012 3G/tilapia or wifi-only/grouper to Android 7.1 Nougat / LineageOS 14.1
This detailed step-by-step guide helps you transform your Google Nexus 7 (3G or wifi) with Android 5 to a powerful one with Android 7.1 Nougat.
Don't expect stable Android 8 or 9 on this tab, but 7.1 is already perfect ;-)
### I'll make a few notes using this style: PLEASE READ THEM.
Before going further, make sure you have the correct model.
Go to Settings > About tablet > Model number: Nexus 7
And on tablet's back cover: Nexus is written horizontally (vertically on 2013 model)
### See here if not clear: https://android.stackexchange.com/questions/58273/how-to-distinguish-nexus-7-2012-and-nexus-7-2013
And if you have a SIM card slot on the side, it is a 3G model (codename tilapia), if not, Wifi only alias grouper.
Make sure you have latest official updates.
Connect tab to Wifi network.
Go to Settings > About > Update. Download if update is available.
CHANGELOG
v3. Improve readability + update TWRP + gapps-config.txt (thx to @23deanor)
v2. Minor updates for tutorial + pack
v1. Initial release
1) DOWNLOAD
- djibe Nexus 7 2012 pack: https://bit.ly/djibe-nexus7-2012-packv2
(contains USB drivers r13 + fastboot & adb + TWRP recovery 3.5.2_9-0 + gapps-config.txt by @aaopt + working OpenGapps pico + Magisk root).
### Use Incognito web browser mode if needed to download pack.
Unzip pack on Windows desktop.
For 3G model/tilapia:
ROM LineageOS 14.1: https://xdaforums.com/t/rom-7-1-2-tilapia-unofficial-lineageos-14-1-2021-01-11.3978723/
Download latest build: https://androidfilehost.com/?fid=17248734326145713539
For Wifi model/grouper:
ROM LineageOS 14.1: https://xdaforums.com/t/rom-7-1-2-grouper-unofficial-lineageos-14-1-2021-01-11.4112431/
Download latest build: https://androidfilehost.com/?fid=17248734326145713542
Google Apps are included in my pack (open_gapps-arm-7.1-pico-20190209.zip)
Tablet must be fully charged to 100%.
2) INSTALL WINDOWS DRIVERS AND BACKUP
Go to the folder you unzipped earlier.
navigate to usb_driver_r13-windows > usb_driver.
Right click on android_winusb.inf and select Install. Confirm with OK.
Restart Windows.
Make sure Google/provider account is synchronized.
Backup photos, documents, contacts before going any further (ex: use the backupyourmobile app).
Connect tab to PC and retrieve data.
3) UNLOCK BOOTLOADER OF GOOGLE NEXUS 7 2012
In Android, go to Settings > About tablet.
Tap 7 times on "Build number", a notification confirms Developer menu is unlocked.
Go to Settings > Developer options and check USB debugging ON.
Open a Windows command prompt on the /djibe pack folder you unziped earlier:
select folder with left click, right click while holding SHIFT on keyboard > Open command windows here
Connect tab to PC.
Enter commandCommand starts adb and returnsCode:adb devicesCode:015d3b668413fc0d unauthorized
ADB (Android Debug Bridge) has started but tab is waiting for authorization.
On tablet, authorize adb commands from Allow USB debugging dialog: tap on OK.
Then enter commandTab restarts and prints a dark screen with message: LOCK STATE - LOCKEDCode:adb reboot bootloader
Enter commandUsing Volume+, select Yes - Unlock bootloader, confirm by pressing Power.Code:fastboot oem unlock
Use Volume keys to select Reboot and Power to confirm.
Tablet is unlocked.
Configure Android fast, reactivate Developer options and USB debugging.
Then restart tablet to bootloader using once againCode:adb reboot bootloader
4) FLASH TWRP 3.5 RECOVERY
Now enter this command### Or for Wifi only model:Code:fastboot flash recovery twrp-3.5.2_9-0-tilapia.imgCommand returns Finished. Total time: 1.828sCode:fastboot flash recovery twrp-3.5.2_9-0-grouper.img
Use Volume keys to select Recovery mode, confirm with Power.
Welcome to TWRP recovery.
Check Never show this screen during boot again and Swip to Allow Modifications.
Go to Backup > select System, Data, Boot partitions.
Swipe to Backup and wait during backup.
Back to home screen > Mount.
You can access folders from PC if Data partition is checke and bottom right button show Disable MTP.
From Windows Explorer, navigate to Nexus 7 > Internal Storage.
Copy TWRP folder and paste it somewhere safe on PC.
This is a perfect backup in case of crash.
5) SET FILESYSTEM TO F2FS
F2FS is the fastest filesystem for read and write partitions on flash memories. Compared to EXT4, gain is from 15 to 280%.
No need to format the /System partition because it is Read only and Ext4 is still faster.
Now go Wipe > Advanced Wipe.
Select Dalvik / ART Cache, System, Cache, Data, Internal Storage and Swipe to Wipe.
Tap on Back button (to Advanced Wipe Menu).
Select /cache partition > Repair or Change File System > Change File System > F2FS, Swipe.
Go Back and back to Advanced Wipe Menu.
Select /data partition > Repair or Change File System > Change File System > F2FS, Swipe.
Tap on Home button > Reboot > Recovery > Swipe to Reboot
6) FLASH ANDROID + OPENGAPPS + MAGISK
On restart, check Never show this screen during boot again and Swipe to Allow Modifications.
Back to Mount menu.
Connect tab to computer.
Copy ROM + GAPPS + gapps-config.txt + Magisk
### Do not unzip files. Copy and paste zip files to Internal Storage
### Copy gapps-config.txt or you will get an "insufficient space" crash during flash.
Then go back to Home menu > Install
Select lineage-*.zip, and Add More Zips,
then open_gapps-arm-7.1-pico-20190209.zip and Add More Zips,
then Magisk.zip and Swipe to force install.
Be patient.
### If it fails, install zips 1 by 1.
Android 7.1 is installed !
When done message prompts, tap on Wipe Cache/Dalvik and swype to confirm, wait.
Disconnect tab from PC.
Then Reboot System.
Let the tab start (at least 10 minutes).
7) ROOT WITH MAGISK
Configure Android as you like.
Magisk root starts with Android.
You can manage permissions and extra modules with Magisk Manager app.
Open Magisk app (v23+).
Go to Settings > go to App Rename app to Godmode to hide hide.
Below, switch MagiskHide ON.
Now go to Magisk Modules tab > install liboemcrypto disabler and MagiskHide Props Config.
Connect to your Google account, download from Play Store Netflix and Disney+.
### If you are already connected to Google account.
Clear cache (Settings > Apps > All apps > Google Play Store > Storage > Clear storage) and restart tab.
Relaunch Play Store, Netflix and Disney+ will be available in SD.
10) OTHER APPS
- You can use GPS Status & Toolbox for faster GPS fix.
- Developer options
Settings > About tablet.
Tap 7 times on build number.
Back to Settings > Developer options
Select USB Configuration > set MTP
Set Windows animation scale, Transition animation scale and Animator duration scale to .5x
- In Developer options, you may try Force GPU rendering.
Much faster on my tab, tell me if it does (or not for you)
That's it.
Enjoy ;-)
Thanks: ud4, AndDiSa, aaopt, TWRP team, LineageOS team, OpenGApps team2I couldn't install liboemcryptodisabler so I give your solution try and it was installed but when I clicked reboot, after reboot when I go back to Magisk, there was no liboemcryptodisabler in modules. I don't know what's going on. I couldn't install MagiskHide Props Config too.
The second question. After Magisk installation, I got 23.0 version but I did update application in Magisk and now it's 24.3 version but only in app section, in Magisk section it's still 23.0 (ramdisk yes) and when I try to update Magisk to newer version, I got two options:
- preserve AVB 2.0
- patch vbmeta in boot image (this option is ticked)
when i click next, I got two choices:
- select and patch a file
- direct install (recommended)
when I choose direct install and click let's go, I get "Installation failed. unable to detect target image". What am I doing wrong? I've got Nexus 7 2021 3G (tilapia).
The last question. Why while I wake up my tablet, it asks me for a camera permissions? Which app from LineageOS need it while you wake the tablet?
At the end I just wanted to say - thank you for a great guide. my tablet has a new life now
1
I know this is almost three months ago..
I had similar issue. You need to rename gapps-config-tilapia.txt to gapps-config.txt1@djibe89
It worked like a charm for me on my Nexus 7 2012 with Android 5.1.1 installed.
Steps were very clear and easy to follow.
Thanks for all the effort to bring this tutorial to our knowledge! Live long djibe89!
If in trouble at this step:
Steps to install liboemcrypto disabler:
download the zip from GitHub https://github.com/Magisk-Modules-Repo/liboemcryptodisabler
-> Under the green button "Code" there is the option to "Download ZIP", move the files from the zip from folder /liboemcryptodisabler-master/ to the root folder of the zip /, push the zip to Nexus 7, then again in Magisk Modules , Install from storage, locate the zip, long tap the zip, Open button
Wait for the module to install
Reboot
Then you will find the module installed in Magisk Modules.
