[Galaxy Note II Q&A, Help & Troubleshooting] kinghu:
Assuming you are aware of the benefits (and potential consequences) of rooting, there are a few ways.

1. Flash a pre-rooted ROM as in my post above.

or

2. Flash this file n7102-cwm6.0.1.9-root.tar (31.2 MB).

Having a raised flash counter (binary count) means potential issues if you need to return the phone for warranty, albeit for the N7102 you'll need to be in China to do so.

Method 1 is has no raised flash counter so you can re-flash a pure stock ROM without Samsung Warranty knowing. It keeps stock recovery and allows OTA updates from Samsung in future (but these will likely disable root access). It also has Google framework/Apps ready if you choose the appropriate ROM.

Method 2 results in a custom recovery (CWM or ClockWordMod) and a raised flash counter as the phone detects this. To reset the flash counter, you'd need to using this guide.

Both methods recommend a clean install - that is to enter recovery and perform a 'wipe data/cache' once the ROM is flashed (or before too as I do). You can try a 'dirty' flash, which is to just flash the ROM over your current install. Whilst this should retain your apps and settings mostly, you might experience lag, force closing apps and other side effects. CWM has benefits so its for you to determine what you need and which method is for you.

Step-by-step method 1:

Backup your data! Use Play Store apps or whatever you prefer. Personally, I use Titanium Backup Pro.

Download Odin for Windows from this thread - use 3.0.7

Download a pre-rooted ROM from my post above (either the pre-rooted ROM or the pre-rooted/pre-Googled ROM).

Download Samsung USB phone drivers and install on Windows. If you have KIES installed, uninstall it first as it can mess with Odin later.

Shutdown phone.

Enter recovery mode: Hold Power+Home+VolUp until you see the 'Samsung Galaxy Note II GT-N7102' white text/logo then immediately let go of the Power button (keep holding Home+VolUp) until you enter recovery mode with the green robot.

Use the volume keys to navigate down to 'wipe data/factory reset' then press Power button to confirm. Confirm the next screen. After a few seconds it's done. You're back to the main menu of recovery.

Reboot into Odin Download mode on the phone: hold Power+Home+VolDown until you see the screen with Chinese writing. Press VolUp to enter Odin Mode. Here you can see if your phone has been flashed with a custom binary previously, etc.

Back to Windows and copy your ROM on the desktop.

Open Odin 3.07 and connect the USB cable to the phone. After a few seconds, you should see the upper left area have a blue box with 0:[COM4] or similar to signify the phone has connected.

Ensure you don't change anything in Odin. Press the 'PDA' button and choose the ROM file (should be unzipped and end with .tar.md5). After 10-20 seconds whilst Odin checks the ROM you're ready to hit the 'Start' button. Takes a few minutes to flash after which the phone will auto restart.

The phone will boot to initial setup screen

You can re-enter recovery mode and re wipe data/cache if you prefer.

After setup, restore your apps/info using whatever you used in step 1 or start a fresh install. Check your status - should be 'Official'.

Step-by-step method 2 from Matteo earlier in the thread:

This will retain your current ROM (whatever that is) although data will still be wiped, so backup first!

In addition to this for method 2, you need to delete or rename two files using RootExplorer, otherwise each time you reboot you will see an 'Andoid is upgrading' message.

Install RootExplorer from the Play Store.

Open and navigate to /system/framework/

At the top of the screen press the 'Mount R/W' button to allow editing.

Backup and then rename or delete these two files: com.google.widevine.software.drm.jar and com.google.widevine.software.drm.odex (I had to delete mine to stop the message).

Restart the phone message-free.

If, however, you use method 1 and one of my pre-modified ROMs above, I've already removed these files so no need to do anything other than flash the ROM of choice.

That should do it. :good: