1. Americas: IFP**50 - Gen 1, IFP**50 - Gen 2, IFP**50 - Gen 3.
2. Asia Pacific & Africa: IFP**50, IFP**50-2, IFP**50-3.
3. Europe: IFP**50, IFP**50-2EP, IFP**50-3EP.
Please refer either method below:
1.You will need to set combination key to “ON” at Debug menuàOther Settingà Combination key.
Then the touch function can be locked/unlocked by pressing the following front panel buttons in sequence:
VOL+, VOL+, VOL+, SETTING, HOME
2.You can enter Debug menuàOther Setting then set touch lock to be ON.