[samsam1311]

Hello all friend, I got some problem after I trying to root, check the image attached, it freeze and rebooted after 15 min...

Now, I can not activate it by Wifi and Kobo Desktop App.
II try to Manual factory reset like this :


Here are the instructions for a manual factory reset:

Before you start:

Charge your eReader for at least 1 hour.
Make sure you have access to a Wi Fi connection.
Press and hold the power button until you see a black 'Powered off' screen.
Note: If you don't see the 'Powered off' screen, go to the next step.


Press and hold one of the page turn buttons.
While holding the page turn button, press and hold the power button.
Wait until the screen flashes and starts the reset process. It usually takes about 30-seconds for the eReader to start the reset process.

But it not working, any advice?
Thanks.