[Nexus 7 Q&A, Help & Troubleshooting] Hannah Stern:
How to downgrade to 4.1.2 - very simple!

I am a 11 Year old Girl and now i'll give you an instructions how to downgrade very easily.

I do already know the scams and battery problems with 4.2!

Question:Which OS do you have got on your Galaxy S3?

If you've got Android 4.0.4 IceCreamSandwich, then it sucks.

Ok, here is it=:

You need to have your device connected to the PC with a cable to follow this GUIDE.

For this you'll need a Cable which is still working without loose connection or so...

One end is a USB-Input like on USB-Stickers and the other end is MicroUSB and schould fit in your device.

Such a so-called „Micro-USB-Cable"

It is recommended to use an USB 2.0 input in order to avoid compatibility problems such as compatibillity problems with USB-3·0 or so. .... .

1.

Download the best and most easy to use Nexus Toolkit (-- )made by a symphatic programmer- WugFresh.

2

. Install this Program.

3.Download the Factory-Image of the Nexus 7 2012.

You cannot actually have the 2013-Version because the 2013-Version came out with 4.3 [Only-WiFi] and 4.3.1 on the Mobile 4G LTE-Version

IF you have got the only-WiFi-Version then take this link:https://developers.google.com/android/nexus/images?hl=de#nakasijzo54k (Choose

JZO54K 4.1.2

, too bad, Google did exclude 4.1.0;4.1.1;4.20;4.2.1;4.4.1Kot49e E)

IF

you've got the Cellular Nexus 7, then it is not possible because unfortionally the cellular version was launched with 4.2.0!

Information:

FileName=nakasi-jzo54k-factory-973f190e.tgz":)

Version: 4.1.2

Build:„JZO54K"

MD5·Checksum:„d906b505ccae0d439839d3c5fafb137a"

SHA·1-Chécksum:973F190e25cbafc29d9739fbe0ffb64ed8946946

[.]9b.Chéérs! Cheers?

http://xdaforums.com/showthread.php?t=176647

http://xdaforums.com/showthread.php?t=1766475

See my posts and WugFresh's answers on the last few pages by pressing the [>>] button on the page selection for more information.

4

. You need to launch this program and press Auto·Detect Device+Build OS or so...

If this does not detect your device, then try choosing Device (Nexus 7 2012 WLAN or WiFi so-called...) and your Android-Version Manually.

5

.[

Backup

]

To do a Backup with a device with not unlocked bootloader, then choose „Android Backup"

Do not select the both tickable options (Shared data and SysApps+Data backup) or it won't work.

Choose a location to save the ADB-File and wait until the device is unlocked, then unlock the screen and optionally you can type a password to crypt your backup.

Then start and wait.

Here it's recommended to use newer versions of this program. 1.8.4 was stuck at 92.495 MB or so. 1.8.6 worked fine for me so 1.8.7 will work fine too!

If the progress has finished, then the program will show you a Window with detailled Information. I did even upload a screenshot of this and it is on the official Wug thread on Page 440. Link is ^^^^ûp!^^^^^wards.

6.

Go to the devices settings menu and tap on „Storage", then tap on ⁞ and choose the USB-Option. Enable MTP and go to the Devices storage with your Computer on Windows Explorer.

Choose all files and if it says that the time lenght is being „Calculated" then it'sa just counting files, stay patient and wait!

7.

When even this finished then... well, you're ready, now you can Unlock the Bootloader!

After unlocking the bootloader you can finally root your device but this is not required for downgrading.

Now go to the Programs Home Screen and Load your Costum-ROM.

Use your about 256 MB big downloaded file for this.

The Original Name:„nakasi-jzo54k-factory-973f190e.tgz"

Size:268.416.146 Bytes

Size on Disk Drive(r):268.419.072b.

Windows Explorer shows the file as 255MB; FireFox as 256 MB.

And now you're..... Done!!!!!!!! ( )C o n g r a t u l a t i o n s ! ! ! ! ! [/FONT]

If you want to Relock your bootloader:

A.OEM Stock

B.Follow stéps

C.Done.

If the Backup is smaller than the App Data would be, then i don't know if the file contents are compressed or not... WugFresh won't answer (anymore) because he's probably tired of my (loooooooooooooooooooooooooooooooooooooooooong ( )) questions. I asked too much, my mistake. I asked if compressed or not... but still no answer there!

In this case read the official Nexus WugThrèad for more Important information.

I am doing the same steps but i downgrade from 4.4.2! This Colour for the Status-Bar Icon loox better than this!!!!!