Original Posted By Gungr►Let me start by saying I am far from an expert in these matters. I got this to work through a good many hours of work and a ton of trial and error
I am running Vista64, as such, all the details will be using that frame, Win7 should be similar, no idea about XP.

The software I used:
SuperOneClick (Ver 2.2) - http://forum.xda-developers.com/show...d.php?t=803682
Titanium Backup
Root Check Pro
File Expert
SuperUser - http://androidsu.com/superuser/

First you need to install and setup the correct USB driver.

In the Z2 Settings, go to Applications > Developement and make sure USB Debugging is turned on.

Download and install Java Platform (JDK) - http://www.oracle.com/technetwork/ja...ads/index.html
Download and install the Android SDK - http://developer.android.com/sdk/index.html

Follow this for the SDK setup - http://wiki.cyanogenmod.com/wiki/How...c_Instructions

When it comes to adding to the path variables the ";C:\android-sdk-windows\platform-tools;C:\android-sdk-windows\tools" part needs to be changed to point at the directory in which you installed the SDK.
You can get around this by shift-clicking an open spot in the \platform-tools\ folder and selecting "Open Command Window Here".

You will need to edit the android_winusb.inf file to add the Z2 to the list.
Under [Google.NTx86] and [Google.NTx64] add this entry to the top:

; Cowon Z2

%SingleAdbInterface% = USB_Install, USB\VID_0E21&PID_1100

%CompositeAdbInterface% = USB_Install, USB\VID_0E21&PID_1100&MI_01

;

Go to C:\Documents and Settings\%USERPROFILE%\.android\adb_usb.ini
If there is no adb_usb.ini file present, create it yourself.

Open the ini file and edit it so it now looks like this:

# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.

# USE 'android update adb' TO GENERATE.

# 1 USB VENDOR ID PER LINE.

0x0e21

Save and close the file.

You may need to update the driver as the guide shows.

Make sure the Z2 is connected via usb cable and USB Storage is on.

When that is all done It is time to use SuperOneClick to first Root and then Shell Root.

After that download this - http://dl.dropbox.com/u/63053887/market.zip
Extract that to C:\ So the folder looks like C:\market.

Open up the command window and type:

adb remount

adb push c:\market\GoogleFeedback.apk /system/app/GoogleFeedback.apk

adb push c:\market\GoogleServicesFramework.apk /system/app/GoogleServicesFramework.apk

adb push c:\market\Vending.apk /system/app/Vending.apk

adb reboot

Finally Download the Market Opener.apk from here - http://munday.ws/kindlefire/MarketOpener.apk

Open your Z2 APK folder (for me it is G:\APK) copy and paste that into the folder.

Safely Remove the Z2, turn off USB Storage and install the Market Opener.apk (the installer should run automatically).

Disconnect the Z2 and reboot it.

You should have a working Android Market up and running. If you have any problems with this, let me know and I will try and help, but as I said, I am no expert so most of the help you will receive shall be via google. I claim none of this as original work, I have copied steps from many sources all found via google.

Original Posted By Joe680830►hi,all
if android system crash or can't boot,
Z2 recovery mode:
1.power off
2.play button+power button

3.home button(middle)


just Copy and paste "Update.zip" to the root folder of SD card
and install the "update.zip"