Howto have root shell access

First you have to open WDTV player and try locate CN4 port socket (see under)

Step by step howto open WDTV is here

• open WDTV player and try find

  WDTV circuit board |     CN4 pinout
                     |    .---------.
                     |    | o o o o |
             CN4     |    '---------'
          .------.   |      ^ ^ ^ ^
          | .... |   |     /  | |  \
          '------' O |   +5V RX TX gnd
'--------------------'

You cannot use USB2Serial cable directly. You should use RS232-to-TTL converter
userfull pages
http://sodoityourself.com/max232-serial-level-converter/
http://www.avitresearch.co.uk/usb_to_ttl.htm
http://www.compsys1.com/workbench/On_top_of_the_Bench/Max233_Adapter/max233_adapter.html
http://www.jescab.se/RSlink.htm

• serial terminal emulator minicom or cua for linux or on windows use putty

— admin 2009/02/09 11:53 source avsforum.com (CN4 scheme) and madhat.com + autodeist (photos)