Hitachi DMP250N undetectable after interruption in Firmware updat

If the AV and component inputs are working, HDMI should also work. If the HDMI DDC has not installed properly by the firmware, the HDMI won't work. In your TVs case, an update should make it all right. Contact any well experienced service technician or the authorized service center for Hitachi. Firmware update to Hitachi brand devices are somwhat difficult to a normal user. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Firmware (Software) update procedure of many popular brand TVs and other devices are given in detail.

Corrupted firmware. A firmware update is necessary. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Unplug and leave unplugged for 12 to 24 hours (i.e. ''overnight''). Do a search for a firmware update (not a ''regular'' data update). Download Firmware update and prepare as per instructions. Plug in Playstation, but don't try to ''load'' a game or anything. Perform the firmware update. If there are no firmware updates for it, attempt to install the same firmware as is current. You'll get a message that the firmware is up to date. Then exit the firmware installation, reboot the unit, and then try to load a game.

Hitachi Global
Try this link.
Gopakumar Gopalan Google

Please contact the authrized service center for Hitachi. Sounds like corrupted firmware. Firmware update is necessary, and the firmware to Hitachi is very difficult to get by internet. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/

You need to set up the wireless internet connection in the TV to connect to a wireless router and then the TV will download the firmware update over the internet.

If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Firmware (Software) update procedure of many popular brand TVs and other devices are given in detail. Search the site by type in the "brand name" of your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

get a toothpick and press the reset button. mine does it all the time. only fault i found with this player so far after a year of abuse

Hi,

if you have the cable of your MP3 you can connect it to yur computer..

1. go to My computer
2. look for the Icon of your MP3 sample in D: Drive.
3. double click

there you can select what you want to save or delete file.

thanks,

Updating firmware video
http://www.youtube.com/watch?v=kVLoG4FWEjc