Good day to all. There is in my book Kindle paperwhite 2 (model dp75sdi). One day will not load. When the Kindle turn on I see, I see a boy under the tree with the backlight on the book. I tried (and time) hold button for 30 seconds and do the hard-reset but this not help. When connected to a PC kindle is connected but can not throw to get information. Through fastbut connect also failed (if someone will give detailed instructions will be grateful). Disassembled book. The battery normally. I decided by rx / tx plug the book. Solder and connect. The putty run logs and stopped at login and password. Airconditioner is a script to create a password from the serial number, but entering the serial number, taken from the log to the script and use the password (with username root) says that the password is not correct.
In short, my problem is bypass the password. In carrying out the instructions listed below must enter the serial number and password can be obtained, but my serial number does not fit the "mask". There B000000000N, but I have just a set of symbols.
Actually, my goal is to get into the diagnostic mode and from there try to do anything. Everything is done according to the instructions
http://www.xodustech.com/guides/kind...te-demo-unlock. I do not rule out the possibility that the instruction is not for my book

. If anyone have experience in this business, please help.
Thank you in advance.