Teac DV-H550 region-free hack

Turn On power and using the remote Open the tray

Push Clear, 2 5 8 0 and Clear keys in order

Unit enters into test mode. "TESTMODE" is displayed on FL Display and some numbers are displayed on TV screen

Under most line on the TV screen, some numeric are displayed as "08 - XX XX XX XX AA BB CC" Region 0. Should be set so that AA = 23, BB = 23, and CC = 00

If the settings (AA = 25, BB = 23, CC = 02) are correct, Push Return key twice. Tray is Closed and unit exits from Test mode

If the above settings are incorrect, correct the setting as follows:

Push Up or Down so that "12 XX" is Displayed on FL display

Press 2 and 3 in order so that "12 23" is displayed on FL Display

Press Select key of remote control unit

Push Up or Down so that "13 XX" is displayed on FL display

Press 2 and 3 key in order so that "13 23" is displayed on FL Display

Press Select key of remote control unit

Push Up or Down so that "14 XX" is displayed on FL display

Press 0 and 0 keys so that "14 00" is displayed on FL Display

Press Select key of remote control unit

Confirm "08 - XX XX XX XX 23 23 00" is displayed at under most line on the TV screen

Push Return key twice. Tray is closed and unit exits from Test mode.