When i go into a game the gamecenter appears on the screen and i can not press cancel

gamecenter is a pay thing. you may have to create an account and then it will let you in

There are few methods, depends on the age of the appliance.

Press the Start/Cancel button until all the console LED's illuminate.
Press both Start/Cancel and On/Off buttons together until
d OFF appears.
The default screen returns and you can select a new programme.

Simply press the Cancel button and the appliance returns to default.

Press On/Off and Start/Cancel toghether with top left option button until d OF appears.

or

Switch off at mains, press and hold On/Off & Start/Cancel buttons, switch mains back on, keep holding down buttons until Doff appears in display.

There are few methods, depends on the age of the appliance.

Press the Start/Cancel button until all the console LED's illuminate.
Press both Start/Cancel and On/Off buttons together until
d OFF appears.
The default screen returns and you can select a new programme.

Simply press the Cancel button and the appliance returns to default.
Press On/Off and Start/Cancel toghether with top left option button until d OF appears.

or

Switch off at mains, press and hold On/Off & Start/Cancel buttons, switch mains back on, keep holding down buttons until Doff appears in display.

First try doing a hard reset of your iPhone/iPod touch (press and hold the sleep/wake and home buttons for about 10 seconds, until the Apple logo appears).
Another option is to try disabling GameCenter and/or Facebook in the Zombie Farm options menu.

Hello
You can set the Game mode and External input mode at the same time by pressing the GAME button on the remote control. "GAME" appears on the TV screen. To exit the the Game mode and the external input mode, press the GAME button on the remote control again. To cancel GAME mode only, adjust the PICTURE control. The game mode will be set ot 'OFF" automatically. In this case "VIDEO" instead of "GAME" appeares on the TV screen. When you press the GAME button if the TV is off, the TV turns ON and will be in the GAME mode and external input mode automatically.

what you do is go to settings and turn the bluetooth on the itouch and iphone on.
also the game your playing must have multiplayer available in order for it to work

There have been 3 versions of Demo Mode used on these appliances.

Version 1(Production to- Date code 39 March 2005)

To Activate
1. From the Default screen of a programme, after switching the appliance on press both Start/Cancel and On/Off buttons together until d On appears in display.
2. Press the Start/Cancel button only and test appears in the screen (Temp & Spin symbols also appear)

To Deactivate

Press the Start/Cancel button until all the console LED's illuminate.
Press both Start/Cancel and On/Off buttons together until
d OFF appears.
The default screen returns and you can select a new programme.
Note:- The default screen information displayed on these models is that of the programme currently selected by the selector knob.

Version 2 ( during Date Code 39 March 2005- to Date Code 42 June 2005)

To Activate

1. Same method as version 1.

To Deactivate

1. Simply press the Cancel button and the appliance returns to default.

Version 3 (During Date Code 43 June 2005 - to date )

To Activate

1. Press On/Off and Start/Cancel together with the top left option button until d On appears.

To Deactivate

1. Press On/Off and Start/Cancel toghether with top left option button until d OF appears.

[USING THE GAME BUTTON]
You may also set the Game mode and external
input mode at the same time by pressing the
GAME button on the remote control. “GAME”
appears on the TV screen.
● To exit the Game mode and external input
mode, press the GAME button on the remote
control again.
● To cancel the Game mode only, adjust the
picture control. The Game mode will be set to
[OFF] automatically as explained in the previous
section. In this case, “VIDEO”(external
input mode) instead of “GAME” appears on
the TV screen.
● When you press the GAME button if the TV is
off, the TV turns on and will be in the Game
mode and external input mode automatically.

good luck

hi try these
There have been 3 versions of Demo Mode used on these appliances.

Version 1(Production to- Date code 39 March 2005)

To Activate
1. From the Default screen of a programme, after switching the appliance on press both Start/Cancel and On/Off buttons together until d On appears in display.
2. Press the Start/Cancel button only and tESt appears in the screen (Temp & Spin symbols also appear)

To Deactivate

Press the Start/Cancel button until all the console LED's illuminate.
Press both Start/Cancel and On/Off buttons together until
d OFF appears.
The default screen returns and you can select a new programme.
Note:- The default screen information displayed on these models is that of the programme currently selected by the selector knob.

Version 2 ( during Date Code 39 March 2005- to Date Code 42 June 2005)

To Activate

1. Same method as version 1.

To Deactivate

1. Simply press the Cancel button and the appliance returns to default.

Version 3 (During Date Code 43 June 2005 - to date )

To Activate

1. Press On/Off and Start/Cancel together with the top left option button until d On appears.

To Deactivate

1. Press On/Off and Start/Cancel toghether with top left option button until d OF appears.

press on off button till test comes up then press on off and start cancel button together for a few seconds